Technology

FP1451

DUAL CHANNEL PWM CONTROL IC

WITH SCP/DTC FUNCTION

GENERAL DESCRIPTION

The FP1451, a 1-chip composed of dual open collector transistor pulse-width-modulation

control circuits with two error amplifiers and dead-time comparators (DTC), the FP1451

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, FP1451, a high performance integrated IC, is designed for a

control circuit. The circuit diagram of the typical application example is as below.

FEATURES

SOP16

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Fixed Reference Voltage: 2.5V

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Reference Voltage Precision: 2% (FP1451)

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Output sink current up to 100mA

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Low quiescent supply current

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Wide operating voltage range: 3.6~40V

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Variable dead-time control (DTC)

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UVLO protection function

PDIP 16

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SCP protection function

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Oscillator Frequency: Max. 500KHz

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Package: SOP16 / PDIP16

TYPICAL APPLICATION

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DC/DC converters for video cameras and TFT LCD monitor

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Back light CCFL inverter.

Rev0.5 Apr. 01, 2004

P1/FP1451