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L9308 Datasheet

  • L9308

  • DUAL LOW SIDE DRIVER

  • 7頁

  • STMICROELECTRONICS   STMICROELECTRONICS

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L9308
DUAL LOW SIDE DRIVER
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DARLINGTON OUTPUT STAGE
INPUT COMPARATOR WITH WIDE RANGE
COMMON MODE OPERATION AND GROUND
COMPATIBLE INPUTS
INPUT COMPARATOR HYSTERESIS
SHORT CIRCUIT PROTECTION OF OUTPUT
WITH SOA PROTECTION
INTERNAL THERMAL PROTECTION WITH
HYSTERESIS
SINGLESUPPLYVOLTAGEFROM 3.5VUP TO
28V
MINIDIP
ORDERING NUMBER :
L9308
DESCRIPTION
The L9308 is a monolithic interface circuit with dif-
ferentialinput comparator and open collector output
able to sink current specifically to drive lamps, re-
lays, d.c. motors, electro valves etc.
Particular care has been taken to protect the device
against destructive failures - short circuit of outputs
to V
S
, SOA protection, supply overvoltage.
BLOCK DIAGRAM
A built in thermal shut-down switches off the device
when the IC鈥檚 internal dissipation becomes too high
and the chip temperature exceeds the security
threshold.
The input comparatorhysteresis increases the inter-
face鈥檚 noise immunity allowing the correct use in
critical environments as automotive applications.
October 1990
This is advanced information on a new product now in development or undergoing evaluation. Details are subject to change without notice.
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