L6451

28 CHANNEL INK JET DRIVER

ADVANCE DATA

40V DMOS OUTPUT BREAKDOWN

PRECISE OUTPUT ENERGY

ESD OUTPUT PROTECTION WITH CLAMP-

ING DIODES

VERY LOW QUIESCENT CURRENT

PLCC44 OR PQFP44 (10 x 10mm)

DESCRIPTION

The L6451 is realized in Multipower BCD Tech-

nology which combines isolated DMOS power

transistors with CMOS and Bipolar circuits on the

same IC. By using mixed technology it has been

possible to optimize the logic circuitry and the

power stage to achieve the best possible perform-

ances.

Intended to be used in ink jet Printer Applications

as 4 to 28 (2 x 14) lines selectable decoder/driver,

the L6451 device driver has the advantages of

low power CMOS inputs and logic, with 28 high

current and high voltage DMOS outputs capable

of sustaining a maximum of 40V.

On system power up the output drivers are locked

out using the chip enable function; two enable in-

puts are available for the different driver banks.

An internal power-on system is implemented in

order to avoid wrong output commutation during

the supply voltage transients.

Using a mask option during manufacturing allows

a different decoding.

Control of the energy delivered to the print head

is made by means of a special circuitry.

All driver outputs are capable of withstanding a

contact discharge of

±8kV with the IC biased.

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

May 1995

BLOCK DIAGRAM (case of 4 bit)

PQFP44

PLCC44

MULTIPOWER BCD TECHNOLOGY

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