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Infineon-TLF35584-DS-v02_00-EN.pdf
Table of Contents
1 Overview
2 Block Diagram
3 Pin Configuration
3.1 Pin Assignment - PG-VQFN-48
3.2 Pin Definitions and Functions - PG-VQFN-48
3.3 Pin Assignment - PG-LQFP-64
3.4 Pin Definitions and Functions - PG-LQFP-64
4 General Product Characteristics
4.1 Absolute Maximum Ratings
4.2 Functional Range
4.3 Thermal Resistance
4.4 Quiescent Current Consumption
4.4.1 Typical Performance Characteristics
5 Wake Function
5.1 Introduction
5.2 Electrical Characteristics Enable Signal
5.3 Electrical Characteristics Wake Signal
5.4 Typical Performance Characteristics
6 Pre Regulators
6.1 Introduction
6.2 Step Up Regulator
6.2.1 Functional description
6.2.2 Electrical characteristics
6.3 Step Down Regulator
6.3.1 Functional description
6.3.2 Electrical characteristics
6.3.3 Typical Performance Characteristics
6.4 Frequency setting
6.4.1 Introduction
6.4.2 Electrical characteristics frequency setting
6.4.3 Typical Performance Characteristics
7 Post Regulators
7.1 Introduction
7.2 µ-Processor Supply
7.2.1 Functional description
7.2.2 Electrical characteristics
7.2.3 Typical Performance Characteristics
7.3 Communication Supply
7.3.1 Functional description
7.3.2 Electrical characteristics
7.3.3 Typical Performance Characteristics
7.4 Voltage Reference
7.4.1 Functional description
7.4.2 Electrical characteristics
7.4.3 Typical Performance Characteristics
7.5 Tracker 1 & 2
7.5.1 Functional description
7.5.2 Electrical characteristics
7.5.3 Typical Performance Characteristics
7.6 External Post Regulator for Core Supply (optional)
7.7 Power Sequencing
7.7.1 Power sequencing from POR to INIT state
7.7.2 Power sequencing STANDBY to INIT state
7.7.3 Power sequencing SLEEP to WAKE state
8 Monitoring Function
8.1 Introduction
8.2 Shutdown Function
8.3 Reset Function
8.4 Interrupt Function
8.5 Electrical Characteristics Voltage Monitoring and Reset Function
9 Standby LDO and Internal Supplies
9.1 Standby LDO:
9.1.1 Functional description
9.1.2 Electrical characteristics
9.1.3 Typical Performance Characteristics
9.2 Internal Supplies
10 Wake Up Timer
10.1 Description
10.2 Electrical Characteristics
11 State Machine
11.1 Introduction
11.2 Description of States
11.2.1 POWERDOWN-state
11.2.2 INIT-state
11.2.3 NORMAL -state
11.2.4 STANDBY-state
11.2.5 SLEEP-state
11.2.6 WAKE-state
11.2.7 FAILSAFE-state
11.3 Transition Between States
11.3.1 POWERDOWN -> INIT-state
11.3.2 INIT -> NORMAL-state
11.3.3 Movements between NORMAL and SLEEP state
11.3.3.1 NORMAL -> SLEEP-state
11.3.3.2 SLEEP -> WAKE-state
11.3.3.3 WAKE -> SLEEP state
11.3.4 Movements between NORMAL and STANDBY state
11.3.4.1 NORMAL -> STANDBY-state
11.3.4.2 STANDBY -> INIT state
11.3.4.3 INIT -> NORMAL state
11.3.5 NORMAL -> WAKE state
11.3.6 WAKE -> NORMAL-state
11.3.7 WAKE -> STANDBY state
11.3.8 FAILSAFE -> INIT state
11.4 Reaction on detected faults
11.4.1 Stay in current State
11.4.2 Transition into INIT State
11.4.2.1 INIT -> INIT state due to detected fault
11.4.2.2 NORMAL -> INIT state due to detected fault
11.4.2.3 STANDBY -> INIT state due to detected fault
11.4.2.4 SLEEP -> INIT state due to detected fault
11.4.2.5 WAKE -> INIT state due to detected fault
11.4.3 Transition into FAILSAFE State
11.4.3.1 INIT -> FAILSAFE state due to detected fault
11.4.3.2 XXXX -> INIT -> FAILSAFE state due to detected fault
11.4.3.3 NORMAL -> FAILSAFE state due to detected fault
11.4.3.4 STANDBY -> FAILSAFE state due to detected fault
11.4.3.5 SLEEP -> FAILSAFE state due to Fault
11.4.3.6 WAKE -> FAILSAFE state due to detected fault
11.4.3.7 Transition into FAILSAFE state due to thermal shutdown
11.4.4 Transition into POWERDOWN-state
11.5 Electrical Characteristics
11.6 Built In Self Test (BIST) Features
11.6.1 Analog Built In Self Test (ABIST)
11.6.1.1 How to run the ABIST
11.6.1.2 Testing the comparator logic only
11.6.1.3 Testing the comparator logic and the corresponding deglitching logic
11.6.1.4 Testing the complete monitoring chain (comparators, deglitching and output)
11.6.1.5 Abort conditions for ABIST operation
11.6.2 Logic Built In Self Test
11.7 Microcontroller Programming Support
12 Safe State Control Function
12.1 Introduction
12.2 Electrical Characteristics
12.3 Reaction On Microprocessor Safety Management Unit (SMU - Pin ERR):
12.3.1 Immediate reaction on ERR monitoring failure
12.3.2 Recovery delay reaction on ERR monitoring failure
12.4 Reaction On Error Triggered State Transitions
12.5 Reaction On Window Watchdog Output (WWO)
12.6 Reaction On Functional Watchdog Output (FWO)
12.7 Reaction On Thermal Shutdown (TSD)
13 SPI - Serial Peripheral Interface
13.1 Introduction
13.2 SPI Write Access To Protected Registers
13.3 SPI Write Initiated State Transition Request And Regulator Configuration
13.4 Registers Description
13.4.1 Device registers
13.4.2 Buck registers
13.5 Electrical Characteristics
14 Interrupt Generation
15 Window Watchdog And Functional Watchdog
15.1 Introduction
15.2 Window Watchdog
15.2.1 Timing Diagrams
15.2.1.1 Normal operation: Correct triggering
15.2.1.2 Fault operation: No trigger in open window after initialization
15.2.1.3 Fault operation: No trigger in Open Window in steady state
15.2.1.4 Fault operation: False trigger in Closed Window after initialization
15.2.1.5 Fault operation: False trigger in Closed Window in steady state
15.2.2 Electrical characteristics
15.3 Functional Watchdog
15.3.1 Timing Diagrams
15.3.1.1 Normal operation: Correct triggering
15.3.1.2 Fault operation: Synchronization is missing
15.3.1.3 Fault operation: Answer is wrong
15.3.1.4 Fault operation: Missing response
16 Application Information
17 Package Outlines
18 Revision History
TLF35584
Multi Voltage Safety Micro Processor Supply
TLF35584QVVS1
TLF35584QVVS2
TLF35584QKVS1
TLF35584QKVS2
Data Sheet
Rev. 2.0, 2017-03-16
Automotive Power
Downloaded by IFXDMZ\par-zengzhe 10/04/2019 05:33:46
TLF35584
Table of Contents
1
2
3
3.1
3.2
3.3
3.4
4
4.1
4.2
4.3
4.4
4.4.1
5
5.1
5.2
5.3
5.4
6
6.1
6.2
6.2.1
6.2.2
6.3
6.3.1
6.3.2
6.3.3
6.4
6.4.1
6.4.2
6.4.3
7
7.1
7.2
7.2.1
7.2.2
7.2.3
7.3
7.3.1
7.3.2
7.3.3
7.4
7.4.1
7.4.2
7.4.3
7.5
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Pin Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Pin Assignment - PG-VQFN-48 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Pin Definitions and Functions - PG-VQFN-48 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Pin Assignment - PG-LQFP-64 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Pin Definitions and Functions - PG-LQFP-64 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
General Product Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Functional Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Thermal Resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Quiescent Current Consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Typical Performance Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Wake Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Electrical Characteristics Enable Signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Electrical Characteristics Wake Signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Typical Performance Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Pre Regulators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Step Up Regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Step Down Regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Typical Performance Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Frequency setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Electrical characteristics frequency setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Typical Performance Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Post Regulators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
µ-Processor Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Typical Performance Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Communication Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Typical Performance Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Voltage Reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Typical Performance Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Tracker 1 & 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Data Sheet
2
Rev. 2.0, 2017-03-16
Downloaded by IFXDMZ\par-zengzhe 10/04/2019 05:33:46
TLF35584
7.5.1
7.5.2
7.5.3
7.6
7.7
7.7.1
7.7.2
7.7.3
8
8.1
8.2
8.3
8.4
8.5
9
9.1
9.1.1
9.1.2
9.1.3
9.2
10
10.1
10.2
11
11.1
11.2
11.2.1
11.2.2
11.2.3
11.2.4
11.2.5
11.2.6
11.2.7
11.3
11.3.1
11.3.2
11.3.3
11.3.3.1
11.3.3.2
11.3.3.3
11.3.4
11.3.4.1
11.3.4.2
11.3.4.3
11.3.5
11.3.6
11.3.7
11.3.8
11.4
11.4.1
Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Typical Performance Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
External Post Regulator for Core Supply (optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Power Sequencing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Power sequencing from POR to INIT state . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Power sequencing STANDBY to INIT state . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Power sequencing SLEEP to WAKE state . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Monitoring Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Shutdown Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Reset Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Interrupt Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
Electrical Characteristics Voltage Monitoring and Reset Function . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Standby LDO and Internal Supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
Standby LDO: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Typical Performance Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
Internal Supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Wake Up Timer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
State Machine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
Description of States . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
POWERDOWN-state . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
INIT-state . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
NORMAL -state . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
STANDBY-state . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
SLEEP-state . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
WAKE-state . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
FAILSAFE-state . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
Transition Between States . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
POWERDOWN -> INIT-state . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
INIT -> NORMAL-state . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
Movements between NORMAL and SLEEP state . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
NORMAL -> SLEEP-state . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
SLEEP -> WAKE-state . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
WAKE -> SLEEP state . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
Movements between NORMAL and STANDBY state . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
NORMAL -> STANDBY-state . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
STANDBY -> INIT state . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
INIT -> NORMAL state . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
NORMAL -> WAKE state . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112
WAKE -> NORMAL-state . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112
WAKE -> STANDBY state . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114
FAILSAFE -> INIT state . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
Reaction on detected faults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119
Stay in current State . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119
Data Sheet
3
Rev. 2.0, 2017-03-16
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TLF35584
11.4.2
11.4.2.1
11.4.2.2
11.4.2.3
11.4.2.4
11.4.2.5
11.4.3
11.4.3.1
11.4.3.2
11.4.3.3
11.4.3.4
11.4.3.5
11.4.3.6
11.4.3.7
11.4.4
11.5
11.6
11.6.1
11.6.1.1
11.6.1.2
11.6.1.3
11.6.1.4
11.6.1.5
11.6.2
11.7
12
12.1
12.2
12.3
12.3.1
12.3.2
12.4
12.5
12.6
12.7
13
13.1
13.2
13.3
13.4
13.4.1
13.4.2
13.5
14
15
15.1
15.2
15.2.1
15.2.1.1
15.2.1.2
Transition into INIT State . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
INIT -> INIT state due to detected fault . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121
NORMAL -> INIT state due to detected fault . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123
STANDBY -> INIT state due to detected fault . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124
SLEEP -> INIT state due to detected fault . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
WAKE -> INIT state due to detected fault . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126
Transition into FAILSAFE State . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127
INIT -> FAILSAFE state due to detected fault . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128
XXXX -> INIT -> FAILSAFE state due to detected fault . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129
NORMAL -> FAILSAFE state due to detected fault . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130
STANDBY -> FAILSAFE state due to detected fault . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131
SLEEP -> FAILSAFE state due to Fault . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132
WAKE -> FAILSAFE state due to detected fault . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133
Transition into FAILSAFE state due to thermal shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134
Transition into POWERDOWN-state . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135
Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136
Built In Self Test (BIST) Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138
Analog Built In Self Test (ABIST) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138
How to run the ABIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139
Testing the comparator logic only . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141
Testing the comparator logic and the corresponding deglitching logic . . . . . . . . . . . . . . . . . . . 142
Testing the complete monitoring chain (comparators, deglitching and output) . . . . . . . . . . . . . 144
Abort conditions for ABIST operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145
Logic Built In Self Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146
Microcontroller Programming Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147
Safe State Control Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148
Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151
Reaction On Microprocessor Safety Management Unit (SMU - Pin ERR): . . . . . . . . . . . . . . . . . . . 153
Immediate reaction on ERR monitoring failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153
Recovery delay reaction on ERR monitoring failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155
Reaction On Error Triggered State Transitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 158
Reaction On Window Watchdog Output (WWO) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159
Reaction On Functional Watchdog Output (FWO) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 160
Reaction On Thermal Shutdown (TSD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161
SPI - Serial Peripheral Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 162
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 162
SPI Write Access To Protected Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165
SPI Write Initiated State Transition Request And Regulator Configuration . . . . . . . . . . . . . . . . . . . 166
Registers Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 167
Device registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 169
Buck registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 214
Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 217
Interrupt Generation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 219
Window Watchdog And Functional Watchdog . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 222
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 222
Window Watchdog . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 223
Timing Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 226
Normal operation: Correct triggering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 226
Fault operation: No trigger in open window after initialization . . . . . . . . . . . . . . . . . . . . . . . . . . 227
Data Sheet
4
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TLF35584
15.2.1.3
15.2.1.4
15.2.1.5
15.2.2
15.3
15.3.1
15.3.1.1
15.3.1.2
15.3.1.3
15.3.1.4
16
17
18
Fault operation: No trigger in Open Window in steady state . . . . . . . . . . . . . . . . . . . . . . . . . . . 228
Fault operation: False trigger in Closed Window after initialization . . . . . . . . . . . . . . . . . . . . . . 229
Fault operation: False trigger in Closed Window in steady state . . . . . . . . . . . . . . . . . . . . . . . . 230
Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 231
Functional Watchdog . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 232
Timing Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 235
Normal operation: Correct triggering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 235
Fault operation: Synchronization is missing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 236
Fault operation: Answer is wrong . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 237
Fault operation: Missing response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 238
Application Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 239
Package Outlines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 241
Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 243
Data Sheet
5
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Multi Voltage Safety Micro Processor Supply
TLF35584
1
Overview
Features
• High efficient multi voltage power supply chip
• Serial step up and step down pre regulator for wide input voltage
•
range from 3.0 to 40 V with full performance and low over all power
loss
Low drop post regulator 5.0V/200mA for communication supply
(named LDO_Com)
Low drop post regulator 5.0 V/600 mA (TLF35584xxVS1) or
3.3 V/600 mA (TLF35584xxVS2) for µC supply (named LDO_µC)
• Provides enable, sync out signal and voltage monitoring (inside
•
device to be added to reset function) for an optional external post
regulator for core supply
• Voltage reference 5.0 V +/- 1% for ADC supply, 150 mA current
capability (named Volt_Ref)
• Two trackers for sensor supply following voltage reference 150 mA
current capability each (named Tracker 1 and Tracker 2)
• Standby regulator 5.0 V/10 mA (TLF35584xxVS1) or 3.3 V/10 mA
16-bit SPI
(TLF35584xxVS2) (named LDO_Stby)
Independent voltage monitoring block with reset function
•
• Configurable functional and window watchdog
•
• Safe state control with two safe state signals with programmable delay
•
• Green Product (RoHS compliant)
•
• AEC Qualified
Input voltage monitoring (over voltage switch off)
ISO26262 compliant
PG-VQFN-48
PG-LQFP-64
Type
TLF35584QVVS1 (5.0 V Variant)
TLF35584QVVS2 (3.3 V Variant)
TLF35584QKVS1 (5.0 V Variant)
TLF35584QKVS2 (3.3 V Variant)
Data Sheet
Package
PG-VQFN-48
PG-VQFN-48
PG-LQFP-64
PG-LQFP-64
Marking (Line1 / Line2)
35584 / VS1
35584 / VS2
TLF35584 / QK VS1
TLF35584 / QK VS2
6
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2
Block Diagram
VST
ENA
WAK
LDO_Stby
3.3V (5.0V)
(as LDO_μC)
ENABLE
VS1
VS2 (PG-LQFP-64 only)
DRG
RSH
BSG
RSL
ROT
INT
SCS
SCL
SDI
SDO
WDI
ERR
SS1
SS2
Feedback
Step Up-
Regulator
Bandgap 1 for
Regulators
Bandgap 2
for Voltage Mon.
Voltage
Monitoring/
Reset Function
INTERRUPT
Generator
SPI
Window
Functional
Watchdog
Watchdog
-
-
Error
Monitoring
Safe State
Control
Driver
Driver
TLF35584
Block Diagram
WakeUp Timer
Logic
Comparator
Internal Supply
and Clock
Step down-
Regulator
Feedback
LDO_μC
3.3V (5.0V)
LDO_Com
5.0V
Tracker 1
5.0V
Tracker 2
5.0V
Volt_Ref.
5.0V
TLF35584
QST
FRE
STU
SW1
SW2 (PG-LQFP-64 only)
PG1
PG2
FB1
FB2
FB3 (PG-LQFP-64 only)
FB4 (PG-LQFP-64 only)
SYN
EVC
SEC
VCI
QUC
SQUC (PG-LQFP-64 only)
QCO
QT1
SQT1 (PG-LQFP-64 only)
QT2
SQT2 (PG-LQFP-64 only)
QVR
AG4 (PG-LQFP-64 only)
Figure 1
Block Diagram
1
G
A
2
G
A
3
G
A
1
S
G
A
2
S
G
A
S
P
M
T
S
G
Data Sheet
7
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3
Pin Configuration
3.1
Pin Assignment - PG-VQFN-48
TLF35584
Pin Configuration
.
c
.
n
6
3
.
c
.
n
5
3
.
c
.
n
4
3
1
T
Q
3
3
2
T
Q
2
3
O
C
Q
1
3
C
U
Q
0
3
R
V
Q
9
2
3
G
A
8
2
T
S
G
7
2
I
C
V
6
2
U
T
S
5
2
E
E
FB1 37
FB2 38
n.c. 39
PG2 40
PG1 41
SW1 42
n.c. 43
n.c. 44
VS1 45
DRG 46
RSH 47
RSL 48
24 FRE
23 SEC
22 MPS
21 EVC
20 ERR
19 SYN
18 INT
17 ROT
16 WDI
15 SCS
14 SCL
13 SDO
E
E
1
G
S
B
2
T
S
V
3
A
N
E
4
K
A
W
5
T
S
Q
6
1
G
A
7
2
G
A
8
1
S
G
A
9
2
S
G
A
0
1
2
S
S
1
1
1
S
S
2
1
I
D
S
Figure 2
Pin Configuration - PG-VQFN-48
3.2
Pin
1
2
3
4
Pin Definitions and Functions - PG-VQFN-48
Symbol
BSG
VST
ENA
WAK
Function
Boost driver ground:
Connect this pin to ground at the low side of an external current sense resistor to
decouple the driver noise from the sensitive ground. If step up pre regulator option
is not used, connect to ground.
Supply voltage standby regulator, input:
Connect this input to supply (battery) voltage with reverse protection diode and
capacitor between pin and ground. An EMC filter is recommended.
Enable Input:
A positive edge signal at this pin will wake the device. In case of not used connect
to ground.
Wake/Inhibit Input:
A high level signal of defined length at this pin will wake the device. In case of not
used, connect to ground.
Data Sheet
8
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