Asynchronous Boost Controller
FP5139
General Description
The FP5139 is a boost topology switching regulator control IC for battery-powered applications.
The FP5139 includes a totem-pole single output stage for driving NPN transistor or N-MOS, high
precision reference voltage(0.5V) to compare output voltage with feedback amplifier, an internal duty
time control for controlling the minimum duty cycle, programmable soft start with short circuit protection
function and logic level control for operating mode or standby mode.
Features
Wide Supply Voltage Operating Range: 1.8 to 15V
Precision Reference Voltage: 0.5V ±2%
Low Current Consumption: 5.5mA in Operation Mode
Low Current Consumption: 1μA in Standby Mode
High Oscillator Frequency: 1MHz max.
Totem-Pole Output with Adjustable ON / OFF Current (for NPN Transistors or n-Channel MOSFET)
Logic Level Control Stand-by Mode Function
Programmable Soft Start Function (SS)
Short Circuit Protection Function (SCP)
Package: TSSOP-8L
Applications
Digital Camera
PDA
Portable Equipment
This datasheet contains new product information. Feeling Technology reserves the rights to modify the product specification without notice.
No liability is assumed as a result of the use of this product. No rights under any patent accompany the sales of the product.
Website: http://www.feeling-tech.com.tw
1/15
Rev. 1.2
Function Block Diagram
VCC
OSC
FP5139
Reference
voltage supply
1.25V
0.6V
0.1V
36k
Error Amp.
500
-
+
0.5V
FB
COMP
Sawtooth wave
oscillator
PWM
Comp.
0.1V
-
+
+
+
DTC 0.6V
Output drive
control circuit
0.22V
OUT
30k
Soft Start SCP
GND
SCP
BR /
CTL
This datasheet contains new product information. Feeling Technology reserves the rights to modify the product specification without notice.
No liability is assumed as a result of the use of this product. No rights under any patent accompany the sales of the product.
Website: http://www.feeling-tech.com.tw
Rev. 1.2
2/15
FP5139
I / O
Connect a Capacitor to this pin
IC power supply
Description
I Error Amplifier Inverting Input
I Soft Start and SCP Function
P
I Output Current Setting and Control
O Totem-Pole Output
P
I Oscillator Output: Connect Capacitor and
O Error Amplifier Compensation Output
IC Ground
Resistor to this pin for Frequency Adjustment
Name No.
1
FB
SCP
VCC
BR / CTL
OUT
GND
OSC
COMP
2
3
4
5
6
7
8
Pin Descriptions
TSSOP-8L
Marking Information
TSSOP-8L
FP5139
9Fa-86L
Halogen Free
Lot Number
Internal ID
Per-Half Month
Year
For Example: 132386TB 86
Halogen Free: Halogen free product indicator
Lot Number: Wafer lot number’s last two digits
Internal ID: Internal Identification Code
Per-Half Month: Production period indicated in half month time unit
Year: Production year’s last digit
For Example: January → A (Front Half Month), B (Last Half Month)
February → C (Front Half Month), D (Last Half Month)
This datasheet contains new product information. Feeling Technology reserves the rights to modify the product specification without notice.
No liability is assumed as a result of the use of this product. No rights under any patent accompany the sales of the product.
Website: http://www.feeling-tech.com.tw
Rev. 1.2
3/15
Ordering Information
Part Number
Operating Temperature
FP5139BWR-LF
Absolute Maximum Ratings
-10°C ~ +85°C
Symbol Conditions
Parameter
Power Supply Voltage
Output Source Current
Output Sink Current
Allowable Power Dissipation
Storage Temperature
Lead Temperature
Suggested IR Re-flow Soldering Curve
FP5139
Package
TSSOP-8L
MOQ
2500EA
Description
Tape & Reel
VIN
SOP-8L, TA +25≦ ℃
MSOP-8L, TA +25≦ ℃
TTSOP-8L, TA +25≦ ℃
SOP-8L, (soldering, 10
sec)
TSSOP-8L, (soldering, 10
sec)
MSOP-8L, (soldering, 10
sec)
Min.
-55
Typ. Max.
15
-50
50
570
400
400
+125
+260
+260
+260
Unit
V
mA
mA
mW
mW
mW
℃
℃
℃
℃
This datasheet contains new product information. Feeling Technology reserves the rights to modify the product specification without notice.
No liability is assumed as a result of the use of this product. No rights under any patent accompany the sales of the product.
Website: http://www.feeling-tech.com.tw
Rev. 1.2
4/15
FP5139
Recommended Operating Conditions
Parameter
Symbol
Conditions
Supply Voltage
Operating Temperature
DC Electrical Characteristics (VCC= +2V, TA=25℃, unless otherwise noted)
Min.
1.8
-10
Typ. Max.
15
+85
Unit
V
℃
Test Conditions
Min.
Typ.
Max.
Unit
Parameter
Symbol
Under Voltage Lock-Out Section (UVLO)
VLOW
Low Threshold Voltage
Upper Threshold Voltage
VUPPER
Soft Start Section (SS)
ISS
Input Source Current
Soft Start Threshold Voltage
VSST
Short Circuit Protection Section (SCP)
Input Source Current
SCP Threshold Voltage
Oscillator Section
Oscillation Frequency
Frequency Change With Voltage
Frequency Change With
Temperature
Idle Period Adjustment Section
f
VSCP= 0V
ISCP VSCP= 0V
VSCP
RT =3.0KΩ, CT =270pF
Δf / ΔV VCC =2V to 15V
Δf / ΔT TA = 0℃ to 85℃
Maximum Duty Cycle
Maximum Duty Cycle Change
With Temperature
Total Device Section
Standby Current
Average Current Consumption
Error Amplifier Section
Input Threshold Voltage
VT Change With Voltage
VT Change With Temperature
Input Bias Current
Voltage Gain
Frequency Bandwidth
Output Voltage Swing Positive
Output Voltage Swing Negative
Output Source Current
Output Sink Current
TDUTY RT =3.0kΩ, CT =270pF,
Δ TDUTY
/ ΔT TA = -10℃ to 85℃
VFB =0.8V
ISTANDBY Pin 4 is open or =VCC
IAVE RB =390Ω, VCC =0~15V
VCOMP =450mV
VCC =2V to 15V
VFB
ΔVFB /
ΔV
ΔVFB /
TA = -10℃ to 85℃
AV =0 dB
ΔT
IB
Av
BW
VPOS
VNEG
ISOURCE VCOMP =450 mV
ISINK VCOMP =450 mV
1.1
-1.5
0.8
-1.5
0.7
400
1.3
-1.0
0.9
-1.0
0.8
500
2
5
85
10
5.0
490
500
-1.0
0.78
24
5
1
-0.2
100
6
0.87
0.05
-40
40
0.9
1.5
-0.7
1.0
-0.7
0.9
600
10
1
10
510
20
1.0
0.2
-24
V
V
µA
V
μA
V
KHz
%
%
%
%
μA
mA
mV
mV
%
μA
V / V
MHz
V
V
μA
μA
This datasheet contains new product information. Feeling Technology reserves the rights to modify the product specification without notice.
No liability is assumed as a result of the use of this product. No rights under any patent accompany the sales of the product.
Website: http://www.feeling-tech.com.tw
Rev. 1.2
5/15
FP5139
Parameter
Symbol
Test Conditions
Min.
Typ.
Max.
Unit
Output Section
Output High Voltage
Output Saturation Voltage
VOH1 RB=390Ω, IO=-15mA
VOH2 RB=750Ω, IO=-10mA,
VCC= 1.8V
VOL1 RB=390Ω, IO=15mA
VOL2 RB=750Ω, IO=10mA,
VCC= 1.8V
IOSOURCE RB=390Ω, Vo=0.9V
IOSINK RB=390Ω, Vo=0.3V
RO
Output Source Current
Output Sink Current
Internal Pull-Down Resistor
Output Current Setting / Control Section
Pin Voltage
Input Off Condition
Input On Condition
Pin Current Range
VBR RB=390Ω
IOFF
ION
IBR
1.0
0.8
30
20
0.15
-20
-1.8
1.2
1.0
0.1
0.1
-40
40
30
0.22
0.2
0.2
-20
-
40
0.3
0
-45
-0.1
V
V
V
V
mA
mA
kΩ
V
μA
μA
mA
This datasheet contains new product information. Feeling Technology reserves the rights to modify the product specification without notice.
No liability is assumed as a result of the use of this product. No rights under any patent accompany the sales of the product.
Website: http://www.feeling-tech.com.tw
Rev. 1.2
6/15
Typical Operating Characteristics
(VCC=2V, TA= 25°C, unless otherwise noted)
FP5139
Supply Voltage vs. Supply Current
Supply Voltage vs. Input Threshold Voltage
TA=25 ℃
R B =390 Ω
TA=25 ℃
1.2
1.0
0.8
0.6
0.4
0.2
0
4
8
12
16
20
0
0
4
8
12
16
20
Su pply Voltage Vcc(V)
Figure 1
A mbient te mperature vs. Input threshod
voltage variation ratio
Vcc =2V
Su pply Voltage V cc(V)
Figure 2
High Level Output
Vcc=2 V
R B =390 Ω
TA=25 ℃
1.2
1.0
0.8
0.6
0.4
0.2
0
25
50
75
100
A m bie nt T e m peratu re TA ( ℃ )
Figure 3
0
0
-10
-20
-30
-40
-50
High Level Output Current
Iout (m A)
Figure 4
Low level output
B R / C TL pin Current vs. Output Source Current
Vcc=2V
R B=390
TA=25 ℃
V cc=2 V
V OUT =0.9V
TA=25 ℃
-60
-50
-40
-30
-20
-10
12
10
8
6
4
2
0
30
10
5
0
-5
-10
-15
25
600
500
400
300
200
100
0
0
20
40
60
80
100
0
0
-0.4
-0.8
-1.2
-1.6
-2.0
Lo w level output current
Iout ( m A)
B R / CT L pin current IBR (m A)
Figure 5
Figure 6
This datasheet contains new product information. Feeling Technology reserves the rights to modify the product specification without notice.
No liability is assumed as a result of the use of this product. No rights under any patent accompany the sales of the product.
Website: http://www.feeling-tech.com.tw
7/15
Rev. 1.2
FP5139
This datasheet contains new product information. Feeling Technology reserves the rights to modify the product specification without notice.
No liability is assumed as a result of the use of this product. No rights under any patent accompany the sales of the product.
Website: http://www.feeling-tech.com.tw
8/15
Rev. 1.2