FP5139
Asynchronous Boost Controller
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
Rev. 1.2
1/15
FP5139
Function Block Diagram
V
CC
OSC
Reference
voltage supply
1.25V
FB
0.6V
0.1V
Sawtooth wave
oscillator
0.1V
OUT
-
+
36k
Error Amp.
500
0.5V
COMP
PWM
-
Comp.
+
+
+
DTC 0.6V
30k
Output drive
control circuit
0.22V
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
Pin Descriptions
TSSOP-8L
Name
FB
SCP
V
CC
BR / CTL
OUT
GND
OSC
COMP
No. I / O
1
2
3
4
5
6
7
8
I
I
P
I
O
P
I
O
Description
Error Amplifier Inverting Input
Soft Start and SCP Function
Connect a Capacitor to this pin
IC power supply
Output Current Setting and Control
Totem-Pole Output
IC Ground
Oscillator Output: Connect Capacitor and
Resistor to this pin for Frequency Adjustment
Error Amplifier Compensation Output
Marking Information
TSSOP-8L
FP5139
9Fa-86L
Halogen Free
Lot Number
Internal ID
Per-Half Month
Year
Halogen Free:
Halogen free product indicator
Lot Number:
Wafer lot number’s last two digits
For Example: 132386TB
86
Internal ID:
Internal Identification Code
Per-Half Month:
Production period indicated in half month time unit
For Example: January
→
A (Front Half Month), B (Last Half Month)
February
→
C (Front Half Month), D (Last Half Month)
Year:
Production year’s last digit
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
FP5139
Ordering Information
Part Number
FP5139BWR-LF
Operating Temperature
-10°C ~ +85°C
Package
TSSOP-8L
MOQ
2500EA
Description
Tape & Reel
Absolute Maximum Ratings
Parameter
Power Supply Voltage
Output Source Current
Output Sink Current
SOP-8L, T
A
≦
+25
℃
Allowable Power Dissipation
Storage Temperature
SOP-8L, (soldering, 10
sec)
TSSOP-8L, (soldering, 10
sec)
MSOP-8L, (soldering, 10
sec)
MSOP-8L, T
A
≦
+25
℃
TTSOP-8L, T
A
≦
+25
℃
-55
Symbol Conditions
V
IN
Min.
Typ.
Max.
15
-50
50
570
400
400
+125
+260
+260
+260
Unit
V
mA
mA
mW
mW
mW
℃
℃
℃
℃
Lead Temperature
Suggested IR Re-flow Soldering Curve
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
Supply Voltage
Operating Temperature
Symbol
Conditions
Min.
1.8
-10
Typ.
Max.
15
+85
Unit
V
℃
DC Electrical Characteristics
(V
CC
= +2V, T
A
=25℃, unless otherwise noted)
Parameter
Low Threshold Voltage
Upper Threshold Voltage
Soft Start Section (SS)
Input Source Current
Soft Start Threshold Voltage
Input Source Current
SCP Threshold Voltage
Oscillator Section
Oscillation Frequency
Frequency Change With Voltage
Frequency Change With
Temperature
Idle Period Adjustment Section
Maximum Duty Cycle
Maximum Duty Cycle Change
With Temperature
Total Device Section
Standby Current
Average Current Consumption
Error Amplifier Section
Input Threshold Voltage
V
T
Change With Voltage
V
T
Change With Temperature
Input Bias Current
Voltage Gain
Frequency Bandwidth
Output Voltage Swing Positive
Output Voltage Swing Negative
Output Source Current
Output Sink Current
V
FB
ΔV
FB
/
ΔV
ΔV
FB
/
ΔT
I
B
Av
BW
V
POS
V
NEG
I
SOURCE
V
COMP
=450 mV
I
SINK
V
COMP
=450 mV
24
A
V
=0 dB
0.78
V
COMP
=450mV
V
CC
=2V to 15V
T
A
= -10℃ to 85℃
-1.0
490
500
5
1
-0.2
100
6
0.87
0.05
-40
40
0.2
-24
1.0
510
20
mV
mV
%
μA
V/V
MHz
V
V
μA
μA
f
R
T
=3.0KΩ, C
T
=270pF
400
500
2
5
600
10
KHz
%
%
Δf
/
ΔV
V
CC
=2V to 15V
Δf
/
ΔT
T
A
= 0℃ to 85℃
I
SS
V
SST
I
SCP
V
SCP
V
SCP
= 0V
V
SCP
= 0V
-1.5
0.8
-1.5
0.7
-1.0
0.9
-1.0
0.8
-0.7
1.0
-0.7
0.9
µA
V
μA
V
Symbol
V
LOW
V
UPPER
Test Conditions
Min.
Typ.
Max.
0.9
Unit
V
V
Under Voltage Lock-Out Section (UVLO)
1.1
1.3
1.5
Short Circuit Protection Section (SCP)
T
DUTY
R
T
=3.0kΩ, C
T
=270pF,
V
FB
=0.8V
85
10
%
%
Δ
T
DUTY
T
A
= -10℃ to 85℃
/
ΔT
I
STANDBY
Pin 4 is open or =V
CC
I
AVE
R
B
=390Ω, V
CC
=0~15V
1
5.0
10
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
5/15
嵌入式系统
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