L9947S datasheet(1/13 Pages) STMICROELECTRONICS

部品番号	L9947S

部品情報	QUAD HALF-BRIDGE AND SINGLE HIGH-SIDE DRIVER

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メーカー	STMICROELECTRONICS [STMicroelectronics]

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L9947

QUAD HALF-BRIDGE AND SINGLE HIGH-SIDE DRIVER

LOW CONSUMPTION IN STANDBY MODE

(<100

µA AT ROM TEMP; < 150µA AT 130°C)

TWO HALF BRIDGES FOR 3A LOAD

(RDSON = 0.25

Ω TYP; Tj =25°C)

TWO HALF BRIDGES FOR 0.5A LOAD

(RDSON = 2.5

Ω TYP; Tj =25°C)

HIGH SIDE DRIVER FOR 2.5A LOAD

(RDSON = 0.45

Ω TYP; Tj =25°C)

DIRECT CONTROLLED BY

µC (MULTIPLEX

SYSTEM)

OUTPUT HIGH/LOW LEVEL DIAGNOSTIC

OVERCURRENT SWITCH OFF AND DIAG-

NOSTIC

OVERTEMPERATURE

DIAGNOSTIC

BE-

FORE SWITCH OFF

OPEN LOAD DIAGNOSTIC

DESCRIPTION

The L9947 is a bus controlled power interface in-

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.

April 1999

®

BLOCK DIAGRAM

Multiwatt 15

ORDERING NUMBER: L9947S

1/13

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