TSM121 datasheet(1/12 Pages) STMICROELECTRONICS

Part #	TSM121

Description	SINGLE CHIP PWM & HOUSEKEEPING IC FOR HALF BRIDGE SMPS

PDF	12 Pages

Scroll/Zoom	100%

Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

Logo

1 / 12 page

1/12

s HOUSEKEEPING CIRCUIT :

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

without external components

s Additional Over voltage protection (-5V and/

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

external components

s Under voltage protection for 3.3V, 5V and

12V without external components

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

with internal threshold voltage

s Externally adjustable Inrush Current blanking

during transients

s Externally adjustable Under voltage blanking

during Power Up

s Power Good output

s Externally adjustable PG delay

s Remote input

s Externally adjustable Remote delay

s Internal Precision Voltage Reference (Vref1)

s PWM GENERATOR :

s Error Amplifier (easy compensation)

s Oscillator (adjustable frequency)

s PWM generation

s Soft Start & Dead Time Control (adjustable)

s Open collector outputs for indirect Pulse

Transformer driving

s Precision Voltage Reference (Vref2) (Uncom-

mitted with Vref1)

DESCRIPTION

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.

TSM121 integrates two independent Voltage Ref-

erences which are uncommitted to ensure safe

Regulation and Protection by the same chip.

APPLICATION

s Primary PWM and secondary housekeeping

in PC/Server SMPS using Half Bridge topol-

ogy

ORDER CODE

N = Dual in Line Package (DIP)

PIN CONNECTIONS (top view)

Part

Number

Temperature

Range

Package

Marking

N

TSM121C

0 to 85°C

•

TSM121C

N

DIP24 shrink

(Plastic Package)

VCC

FB

IN-

IN+

OSC

REM

TREM

TPG

PG

IS12

VS33

VS5

VS12

PI

TUV

EP

TSUR

GND

VREF2

SS/DTC

10

9

8

7

6

5

4

3

2

1

11

12

13

14

15

16

17

18

19

20

21

22

23

24

C2

C1

IS5

IS33

TSM121

SINGLE CHIP PWM & HOUSEKEEPING IC

FOR HALF BRIDGE SMPS

January 2001

Similar Part No. - TSM121

Manufacturer	Part #	Datasheet	Description
TRACO Electronic AG	TSM1212D	1Mb / 7P	DC/DC Converter TSM Series, 1 Watt Rev. November 30, 2022
	TSM1212S	1Mb / 7P	DC/DC Converter TSM Series, 1 Watt Rev. November 30, 2022
	TSM1215D	1Mb / 7P	DC/DC Converter TSM Series, 1 Watt Rev. November 30, 2022
	TSM1215S	1Mb / 7P	DC/DC Converter TSM Series, 1 Watt Rev. November 30, 2022

More results

Similar Description - TSM121

Manufacturer	Part #	Datasheet	Description
NXP Semiconductors	UBA2024	78Kb / 11P	Half-bridge power IC for CFL lamps 2004 Feb 03
STMicroelectronics	L6591	580Kb / 32P	PWM controller for ZVS half-bridge 19-Jun-2008
NXP Semiconductors	UBA2024	69Kb / 12P	Half-bridge power IC for CFL lamps Rev. 03-16 October 2008
	UBA2024	90Kb / 14P	Half-bridge power IC for CFL lamps Rev. 04-17 September 2009
	UBA2080	587Kb / 15P	Half-bridge driver IC Rev. 1.1-6 December 2011
	UBA2024	448Kb / 17P	Half-bridge power IC for CFL lamps Rev. 6.2-1 November 2010
Shenzhen Winsemi Microe...	WS21351	363Kb / 7P	Half-bridge power IC for CFL lamps
International Rectifier	IRS2548D	325Kb / 22P	SMPS/LED DRIVER PFC HALF-BRIDGE CONTROL IC
NXP Semiconductors	NWP2081T	105Kb / 12P	Half-bridge driver IC Rev. 1-3 September 2013
Jingjing Microelectroni...	EG3525	1Mb / 17P	Push-pull, half bridge PWM control chip

More results

TSM121 Datasheet(PDF) 1 Page - STMicroelectronics

TSM121 Datasheet(HTML) 1 Page - STMicroelectronics

Similar Part No. - TSM121

Similar Description - TSM121

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12

Datasheet Download

Link URL