FTSM101A Datasheet, PDF (1/7 Pages) First Components International – VOLTAGE AND CURRENT CONTROLLER

FTSM101A VOLTAGE AND CURRENT CONTROLLER
• 1.24V SERIES VOLTAGE RERFERENCE WITH 10mA OUTPUT
CURRENT AND 1% PRECISION
• TWO OPERATIONAL AMPLIFIERS WITH ORED OUTPUT AND
1MHZ GAIN BANDWIDTH PRODUCT
• BUILT-IN CURRENT GENERATOR WITH ENABLE/DISABLE
FUNCTION
• 4.5 TO 32V SUPPLY VOLTAGE RANGE
• SO8 AND DIP8 PACKAGES
DESCRIPTION
The FTSM101A integrated circuit incorporates a high stability series
band gap voltage reference, two ORed operational amplifiers and a cur-
rent source.
This IC compares the DC voltage and the current level a 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 cur-
rent limitation by offsetting the information coming from the current sen-
sing resistor.
APPLICATIONS
N
DIP8
Plastic Package
D
SO-8
Plastic Micropackage
ORDERING NUMBER:
FTSM101AN Plastic Package
FTSM101AD Plastic Micropackage
This circuit is designed to be used in battery chargers with a constant
voltage and a limited output current.
It can be used in every types of application requiring a precision
voltage regulation and current limitation.
Other applications include voltage supervisors, over voltage
protection
PIN CONNECTIONS (top view)
ORDER CODE
Part
Number
KGM101AI
Temperature Range
-40ºC, +105ºC
Package
ND
•
•
N = Dual in Line Package (DIP)
D = Small Outline Package (SO) – also available in Tape & Reel (DT)
1
Vref
8
2
7
+-
3
6
4
-+
5