L9947 Ver la hoja de datos (PDF) - STMicroelectronics

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componentes Descripción

Fabricante

L9947

QUAD HALF-BRIDGE AND SINGLE HIGH-SIDE DRIVER

STMicroelectronics 

®

L9947

QUAD HALF-BRIDGE AND SINGLE HIGH-SIDE DRIVER

LOW CONSUMPTION IN STANDBY MODE

(<100µA AT ROM TEMP; < 150µA AT 130°C)

TWO HALF BRIDGES FOR 3A LOAD

(RDSON = 0.25Ω TYP; Tj = 25°C)

TWO HALF BRIDGES FOR 0.5A LOAD

) (RDSON = 2.5Ω TYP; Tj = 25°C)

t(s HIGH SIDE DRIVER FOR 2.5A LOAD

c (RDSON = 0.45Ω TYP; Tj = 25°C)

u DIRECT CONTROLLED BY µC (MULTIPLEX

d SYSTEM)

ro ) OUTPUT HIGH/LOW LEVEL DIAGNOSTIC

P t(s OVERCURRENT SWITCH OFF AND DIAG-

NOSTIC

lete uc OVERTEMPERATURE DIAGNOSTIC BE-

d FORE SWITCH OFF

so ro OPEN LOAD DIAGNOSTIC

b P DESCRIPTION

- O te The L9947 is a bus controlled power interface in-

OObbssoolleettee PPrroodduucctt((ss)) - Obsole BLOCK DIAGRAM

Multiwatt 15

ORDERING NUMBER: L9947S

tended for automotive applications realized in

multipower BCD60II technology. Up to three DC

motors and one grounded resistive load can be

driven with its four half-bridge and one high-side

driver power outputs. The microcomputer compat-

ible bidirectional parallel bus allows several inter-

faces connected on the same bus (multiplex sys-

tem). The full diagnostic information is available on

the bus.

November 2001

1/13

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