KA3501 Datasheet

IC型號(hào)：
KA3501
PDF描述：
PC SMPS Supervisory IC
文件大?。?/label>
44.42KB
PDF頁數(shù)：
6頁
芯片廠家：
FAIRCHILD

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www.fairchildsemi.com

KA3501

PC SMPS Supervisory IC

Features

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Complete House Keeping Circuit

Few External Components

Positive Voltage Protection

Negative Voltage Protection

High Current Drive Output for SCR

Precision Voltage Reference for 5V/12V Outputs

Power Good Signal Generator with Hysteresis

Description

The KA3501 is complete housekeeping circuits for use in the

secondary side of SMPS(Switched Mode Power Supply).

This IC(Integrated Circuit) contains a precision voltage

reference, protection circuits and a power good signal

generator. It also has a high current drive output for use in

conjunction with an external "crowbar" SCR. The reference

voltage is trimmed to

鹵2%

for correct output voltages(+5V/

+12V) and power good signal generator is to monitor the

voltage level of power good supply for safe operation in a

microprocessor circuit. Using the KA3501 requires few

external components to accomplish a complete

housekeeping circuit for SMPS(Switched Mode Power

Supply). The KA3501 is available in an 14-pin DIP.

14-DIP

Internal Block Diagram

1(+5V)

Vin1

Positive

Voltage

Protection

START UP

+5V

Detecting

COMP

lchg

Vin2

GATE

Feedback

Vref

Negative

Voltage

Protection

INTERNAL

BIAS

Detecting

COMP

+2.5V

REFERENCE

VOLTAGE

2(+12V)

1 Vcont

13 GND

10 Timing

Rev. 1.0.2

漏2002 Fairchild Semiconductor Corporation

標(biāo)準(zhǔn)包裝
25
類別
集成電路 (IC)
家庭
PMIC - 電源控制器，監(jiān)視器
系列
-
應(yīng)用
電源，監(jiān)控器
輸入電壓
-
電源電壓
5 V ~ 32 V
電流 - 電源
3mA
工作溫度
0°C ~ 70°C
安裝類型
通孔
封裝/外殼
14-DIP（0.300"，7.62mm）
供應(yīng)商設(shè)備封裝
14-DIP
包裝
管件

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