CONTROL IC. FP5452 Datasheet

FP5452 IC. Datasheet pdf. Equivalent


Part FP5452
Description DUAL PWM CONTROL IC
Feature Technology FP5452 DUAL PWM CONTROL IC WITH SCP/DTC FUNCTION GENERAL DESCRIPTION The FP5452, a 1-ch.
Manufacture Feeling Technology
Datasheet
Download FP5452 Datasheet


Technology FP5452 DUAL PWM CONTROL IC WITH SCP/DTC FUNCTION FP5452 Datasheet
Recommendation Recommendation Datasheet FP5452 Datasheet




FP5452
Technology
FP5452
DUAL PWM CONTROL IC
WITH SCP/DTC FUNCTION
GENERAL DESCRIPTION
The FP5452, a 1-chip composed of totem-pole output stage pulse-width-modulation control
circuits with two error amplifiers and dead-time comparators (DTC), the FP5452 contains a
2.5V precision voltage reference regulator, under-voltage lockout circuit (UVLO), short circuit
protection circuit (SCP), applied to offer space and low cost in many applications such as the
DC/DC converter and backlight inverter.
Using few external components, FP5452, a high performance integrated IC, is designed for a
control circuit. The circuit diagram of the typical application example is as below.
FEATURES
Fixed Reference Voltage: 2.5V
Reference Voltage Precision: 2% (FP5452)
Totem-pole output stage
Low quiescent supply current under 3.5mA
Wide operating voltage range: 3.6~40V
Variable dead-time control (DTC)
UVLO protection function
SCP protection function (threshold voltage: 1.3V)
Oscillator Frequency: Max. 500KHz
Package: SOP16/PDIP16/SSOP16
SOP16
PDIP 16
TYPICAL APPLICATION
DC/DC converters for video cameras and TFT LCD monitor etc.
Back light CCFL inverter.
SSOP 16
Website: http://www.feeling-tech.com.tw
Rev0.4 May. 11, 2005
P1/FP5452



FP5452
Technology
FUNCTIONAL BLOCK DIAGRAM
92
1
11
12
14
13
1/2 Vref
Oscillator
PWM
COMP
Reference
15 Voltage
R
Iscp S
UVLO
R
3
4
PWM
COMP
5
6
FP5452
10
16
7
8
MARK VIEW
PIN DESCRIPTION
NAME NO. STATUS
DESCRIPTION
1
16
CT 1
I Connect a Capacitor for Oscillator
RT 2
I Connect a Resistor for Oscillator
2
15
EA1+ 3
I Error Amplifier 1 Non-inverting Input
EA1- 4
I Error Amplifier 1 Inverting Input
3
14
FB1 5
O Error Amplifier 1 Feedback Output
4
13
DTC1 6
I Output 1 Dead-Time Comparator
OUT1 7
O Totem-pole Output 1
5
12
GND 8
P IC Ground
6
11
VCC 9
P IC Power Supply
OUT2 10
O Totem-pole Output 2
7
10
DTC2 11
I Output 2 Dead-Time Comparator
FB2 12
O Error Amplifier 2 Feedback Output
8
9
EA2- 13
I Error Amplifier 2 Inverting Input
EA2+ 14
I Error Amplifier 2 Non-inverting Input
SCP 15
I Short Circuit Protection Input
VREF 16
O 2.5V Reference Voltage Output
Website: http://www.feeling-tech.com.tw
Rev0.4 May. 11, 2005
P2/FP5452







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