PLCC44 PIN CONNECTION (Top view)

PIN FUNCTIONS

Name

Function

5V Logic Supply.

GND

Logic and Power Ground.

OUT0 to OUT27

DMOS Outputs.

CLAMP

This pins have to be connected to the power supply voltage of the head resistors, each of the

output DMOS have their drain connected with the anode of a protection diode, all the catodes

of the protection diodes are collected to the pins clamp. If the CLAMP pins are not connected

to the power, the device is not supplied.

INA, INB, INC, IND

Decoder inputs.

The input IND shares the pin with the other input COM3, the two different functions are

selected by the pin Bench.

COM1, COM2,

COM3, COM4

A low logic input on this pins enable the outputs selected by the decoder inputs according to

the logic level of the pin bench.

The input COM3 shares the pin with the other input IND, the two different functions are

selected by the pin Bench.

CHIP ENABLE

A logic high enable the chip.

THERMAL DATA

Symbol

Parameter

PQFP44

PLCC44

Unit

Thermal Resistance Junction-Ambient

Max.

55 (*)

65 (*)

°C/W

(*) device mounted on PCB.

L6450

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