Datasheet > STC6105

STC6105

更新时间： 2024-11-08 06:14:35

品牌	Logo	应用领域
SUNTAC		监控
页数	文件大小	规格书
10页	460K
描述
Power Supply Supervisor + Regulator + PWM

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中文翻译

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数据手册

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STC6105 数据手册

Product Specification

STC6105 Power Supply Supervisor + Regulator + PWM

FEATURES

ꢀ PC half-bridge (or 494) power supply supervisor +

two 431 + PWM

DESCRIPTION

STC6105 controller is designed for switching

mode power supply for desktop PCs. It provides all the

functions necessary to monitor and control the output of

the power supply. Remote ON/OFF control, power good

circuitry, some protection features against over-voltage

and over-power are implemented. It directly senses all the

output rails for OVP without the need of external dividers.

An innovated AC-signal sampling circuitry provides a

sufficient power-down warning signal for PG. A built-in

timer generates accuracy timing for control circuit

including the PS-off delay. The cycle-by-cycle PWM

switching prevents the power transformer from the

saturation and ensures the fastest response for the

short-circuit protection which greatly reduce the stress for

power transistors. Two internal precision TL431 shunt

regulators provide stable reference voltage and driver for

3.3V and 5V-standby regulation. Utilizing minimum

number of external components, the STC6105 includes

all of the functions for push-pull and/or half-bridge

topology, decreasing the production cost and PCB space,

and increasing the MTBF for power supply.

ꢀ High integration & few external components

ꢀ Over-voltage protection for 3.3V, 5V and 12V

ꢀ Under-voltage protection for 3.3V, 5V and 12V

ꢀ Under-voltage protection for –12V and/or –5V

ꢀ Over-power and short-circuit protection

ꢀ Power-down warning circuitry

ꢀ Power good circuitry

ꢀ Delay time for PSON and PG signal

ꢀ Remote ON/OFF function

ꢀ On-chip oscillator and error amplifier

ꢀ Two shunt regulator for 3.3V and 5V-Standby

ꢀ Latching PWM for cycle-by-cycle switching

ꢀ Push-pull PWM operation and totem pole outputs

ꢀ Soft-start and maximum 93% duty cycle

APPLICATIONS

Switching mode power supply for Computers, such

as:

ATX

NLX

SFX (micro-ATX)

MARKING DIAGRAMS

PIN CONFIGURATION

PSON

V33

VCC

STC6105

OPP

UVAC

NVP

V12

COMP

GND

FB1

VREF1

VREF2

FB2

OP2

OP1

- 1 -

12 3 4 5 6 7...10

中文翻译

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