L9947 PDF Datasheet


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Description

This is QUAD HALF-BRIDGE AND SINGLE HIGH-SIDE DRIVER. ® L9947 QUAD HALF-BRIDGE AND SINGLE HIGH-SIDE DRIVER LOW CONSUMPTION IN STANDBY MODE (<100 A AT ROM TEMP; < 150 A 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) HIGH SIDE DRIVER FOR 2.5A LOAD (RDSON = 0.45Ω TYP; Tj = 25°C) DIRECT CONTROLLED BY C (MULTIPLEX SYSTEM) OUTPUT HIGH, LOW LEVEL DIAGNOSTIC OVERCURRENT SWITCH OFF AND DIAGNOSTIC OVERTEMPERATURE DIAGNOSTIC BEFORE SWITCH OFF OPEN LOAD DIAGNOSTIC DESCRIPTION The L9947 is a bus controlled power interface inBLOCK 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 compatible bidirectional parallel bus allows several interfaces connected on the same bus (multiplex system). The full diagnostic information is available on the bus..