L6280

THREE CHANNELS MULTIPOWER DRIVER SYSTEM

ADVANCE DATA

PROGRAMMABLE

CONFIGURATION

(CHANNELS 1 AND 2)

OUTPUT CURRENT UP TO 1A (CHANNELS

1AND 2)

1 SENSE PER CHANNEL

OUTPUT CURRENT CHANNEL 3 UP TO 3A

DIRECT INTERFACE TO MICROPROCESSOR

C-MOS COMPATIBLE INPUT

INTERNAL DC-DC CONVERTER FOR LOGIC

SUPPLY (+5V)

POWER FAIL

WATCHDOG MANAGEMENT

THERMAL PROTECTION

VERY LOW DISSIPATED POWER (SUIT-

ABLE FOR USE IN BATTERY SUPPLIED AP-

PLICATIONS)

DESCRIPTION

The L6280 is a multipower driver system for motor

and solenoid control applicatios that connects di-

rectly to a microprocessor bus. Realized in Mul-

tipower BCD technology -- which combines isolated

DMOS transistors, CMOS & bipolar circuits on the

same chip -- it integrates two 1A motor drivers

(channels 1 & 2) a 3A solenoid driver (channel 3)

and a 5V switchmode power supply.

All of the drivers in the L6280 are controlled by a

microprocessor

which

loads

commands

and

reads diagnostic information, treating the device

as a peripheral. Channels 1 and 2 feature a pro-

grammable output DMOS transistor configuration

that can be set during the initialization phase.

Thanks to very low dissipation of its DMOS power

stages the L6280 needs no heatsink and is pack-

aged in a 44-lead PLCC package.

This is advanced information on a new product now in development or undergoing evaluation. Details are subject to change without notice.

January 1992

MULTIPOWER BCD TECHNOLOGY

BLOCK DIAGRAM

PLCC44

ORDERING NUMBER: L6280

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