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Part Number: TSM101A

 

 

 

 

Description: The TSM101/TSM101Aintegrated circuit incorporates a high stability series band gap voltage reference, ...


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TSM101A General Description


The TSM101/TSM101Aintegrated circuit incorporates a high stability series band gap voltage reference, two ORed operational amplifiers and a current source.

This IC compares the DC voltage and the current level at the output of a switching power supply to an internal reference. It provides a feedback through an optocouplerto the PWMcontroller IC in the primary side.

The controlled current generator can be used to modify the level of current limitation by offsetting the information coming from the current sensing resistor.

TSM101A Maximum Ratings

Symbol Parameter
Value
Unit
VCC DC Supply Voltage - (note 1)
36
V
Iout Output Current - (note 2)
20
mA
Pd Power Dissipation
200
mW
Vin Input Voltage - (note 3)
-0.3, VCC -1.5
V
Iin Input Current
±1
mA
Tstg Storage Temperature
-40 to +125
Tj Maximum Junction Temperature
150
Tthja Thermal Resistante Junction to Ambiant
130 to 200
/W
Notes : 1. All voltages values, except differential voltage are with respect to network ground terminal.
             2. The voltage reference is not protected against permanent short circuit .

TSM101A Features

 ·1.24V SERIES VOLTAGE REFERENCE WITH 10mA OUTPUT CURRENT AND 1% PRECI-SION (TSM101A) 
 ·TWO OPERATIONAL AMPLIFIERS WITH ORED OUTPUT AND 1MHZ GAIN BAND WIDTH PRODUCT 
 ·BUILT-IN CURRENT GENERATOR WITH EN ABLE/DISABLEFUNCTION 
 ·4.5 TO 32V SUPPLY VOLTAGE RANGE
 · SO8, DIP8 AND TSSOP8 PACKAGES

TSM101A Typical Application

This circuit is designed to be used in battery chargers with a constant voltage and a limited output current.

It canbeused in everytypes of applicationrequiring a precision voltage regulation and current limitation.

Other applications include voltage supervisors, over voltage protection...

TSM101A Connection Diagram

TSM101A Connection Diagram

TSM101A datasheet

TSM101A
PDF/DataSheet Download

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