TSM101 Datasheet, PDF (1/15 Pages) STMicroelectronics – VOLTAGE AND CURRENT CONTROLLER

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TSM101/A
VOLTAGE AND CURRENT CONTROLLER
. _{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/DISABLE FUNCTION
. _{4.5 TO 32V SUPPLY VOLTAGE RANGE}
. _{SO8, DIP8 AND TSSOP8 PACKAGES}
N
DIP8
(Plastic Package)
D
SO8
(Plastic Micropackage)
P
TSSO P8
(Thin Shrink Small Outline Package)
DESCRIPTION
The TSM101/TSM101Aintegrated circuit incorpo-
rates a high stability series band gap voltage refer-
ence, 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 optocoupler to the PWM controller 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.
APPLICATIONS
This circuit is designed to be used in battery charg-
ers with a constant voltage and a limited output
current.
It can be used in every types of applicationrequiring
a precision voltage regulation and current limita-
tion.
Other applications include voltage supervisors,
over voltage protection...
June 1999
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Part Number
TSM101C/AC
TSM101I/AI
Temperature
Range
-20, +80^oC
-40, +105^oC
Package
N
D
P
•
•
•
•
•
•
PIN CONNECTIONS
1
Vref
8
2
7
3
6
4
5
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