L6450 查看數據表（PDF） - STMicroelectronics

零件编号

产品描述 (功能)

生产厂家

L6450

28 CHANNEL INK JET DRIVER

STMicroelectronics 

PLCC44 PIN CONNECTION (Top view)

L6450

PIN FUNCTIONS

Name

VDD

GND

OUT0 to OUT27

CLAMP

INA, INB, INC, IND

COM1, COM2,

COM3, COM4

CHIP ENABLE

Function

5V Logic Supply.

Logic and Power Ground.

DMOS Outputs.

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.

Decoder inputs.

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

selected by the pin Bench.

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.

A logic high enable the chip.

THERMAL DATA

Symbol

Parameter

Rth j-amb Thermal Resistance Junction-Ambient

(*) device mounted on PCB.

PQFP44 PLCC44 Unit

Max. 55 (*) 65 (*) °C/W

3/9

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