TSM121

更新时间： 2024-11-02 22:49:31

品牌	Logo	应用领域
意法半导体 - STMICROELECTRONICS		开关
页数	文件大小	规格书
12页	130K
描述
SINGLE CHIP PWM & HOUSEKEEPING IC FOR HALF BRIDGE SMPS

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中文翻译

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数据手册

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TSM121 数据手册

TSM121

SINGLE CHIP PWM & HOUSEKEEPING IC

FOR HALF BRIDGE SMPS

■ HOUSEKEEPING CIRCUIT :

ORDER CODE

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

Package

without external components

Part

Number

Temperature

Range

Marking

■ Additional Over voltage protection (-5V and/

or -12V, or Primary Over Power control) with

external components

TSM121C

0 to 85°C

•

TSM121C

■ Under voltage protection for 3.3V, 5V and

12V without external components

■ Over current protection for 3.3V, 5V and 12V

with internal threshold voltage

N = Dual in Line Package (DIP)

■ Externally adjustable Inrush Current blanking

during transients

■ Externally adjustable Under voltage blanking

during Power Up

■ Power Good output

■ Externally adjustable PG delay

■ Remote input

■ Externally adjustable Remote delay

■ Internal Precision Voltage Reference (Vref1)

■ PWM GENERATOR :

DIP24 shrink

(Plastic Package)

■ Error Amplifier (easy compensation)

■ Oscillator (adjustable frequency)

■ PWM generation

■ Soft Start & Dead Time Control (adjustable)

■ Open collector outputs for indirect Pulse

Transformer driving

PIN CONNECTIONS (top view)

■ Precision Voltage Reference (Vref2) (Uncom-

mitted with Vref1)

VCC

DESCRIPTION

SS/DTC

OSC

GND

VREF2

TSUR

TUV

The TSM121 integrated circuit incorporates all

sensing circuit to regulate and protect from over

voltage, under voltage and over current a multiple

output power supply (12V, 5V, 3.3V).

TSM121 incorporates all the necessary functions

for proper PWM generation and pulse transformer

drive to be adapted easily in the PC SMPS power

supplies, and all the Housekeeping features which

allow safe operation in all conditions, and very

high integration.

IN-

IN+

REM

TREM

TPG

TSM121 integrates two independent Voltage Ref-

erences which are uncommitted to ensure safe

Regulation and Protection by the same chip.

IS12

IS5

VS12

VS5

APPLICATION

■ Primary PWM and secondary housekeeping

in PC/Server SMPS using Half Bridge topol-

ogy

IS33

VS33

January 2001

1/12

12 3 4 5 6 7...12

中文翻译

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与TSM121相关器件

型号	品牌	获取价格	描述	数据表
TSM-121-01,-02,-03-F-MT	SAMTEC	获取价格	42 CONTACT(S), MALE, RIGHT ANGLE TWO PART BOARD CONNECTOR, SOLDER AND SMT
TSM-121-01,-02,-03-L-MT	SAMTEC	获取价格	42 CONTACT(S), MALE, RIGHT ANGLE TWO PART BOARD CONNECTOR, SOLDER AND SMT
TSM-121-01,-02,-03-P-MT	SAMTEC	获取价格	42 CONTACT(S), MALE, RIGHT ANGLE TWO PART BOARD CONNECTOR, SOLDER AND SMT
TSM-121-01,-02,-03-SM-DH	SAMTEC	获取价格	42 CONTACT(S), MALE, RIGHT ANGLE TWO PART BOARD CONNECTOR, SURFACE MOUNT
TSM-121-01,-02,-03-STL-DH	SAMTEC	获取价格	42 CONTACT(S), MALE, RIGHT ANGLE TWO PART BOARD CONNECTOR, SURFACE MOUNT
TSM-121-01,-02,-03-STL-MT	SAMTEC	获取价格	42 CONTACT(S), MALE, RIGHT ANGLE TWO PART BOARD CONNECTOR, SOLDER AND SMT
TSM-121-01,-02,-03-T-DH	SAMTEC	获取价格	42 CONTACT(S), MALE, RIGHT ANGLE TWO PART BOARD CONNECTOR, SURFACE MOUNT
TSM-121-01,-02,-03-TL-DH	SAMTEC	获取价格	42 CONTACT(S), MALE, RIGHT ANGLE TWO PART BOARD CONNECTOR, SURFACE MOUNT
TSM-121-01,-02,-03-TL-MT	SAMTEC	获取价格	42 CONTACT(S), MALE, RIGHT ANGLE TWO PART BOARD CONNECTOR, SOLDER AND SMT
TSM-121-01,-02,-03-TM-DH	SAMTEC	获取价格	42 CONTACT(S), MALE, RIGHT ANGLE TWO PART BOARD CONNECTOR, SURFACE MOUNT

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