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STMicroelectronics - 28 CHANNEL INK JET DRIVER

Numéro de référence L6450
Description 28 CHANNEL INK JET DRIVER
Fabricant STMicroelectronics 
Logo STMicroelectronics 





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L6450 fiche technique
L6450
28 CHANNEL INK JET DRIVER
ADVANCE DATA
40V DMOS OUTPUT BREAKDOWN
TWO DECODER OPTIONS ARE INCLUDED
PRECISE OUTPUT ENERGY
ESD OUTPUT PROTECTION WITH CLAMP-
ING DIODES
VERY LOW QUIESCENT CURRENT
PLCC44 OR PQFP44 (10 x 10mm)
MULTIPOWER BCD TECHNOLOGY
DESCRIPTION
The L6450 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) or 3 to 28 (4 x 7) lines select-
able decoder/driver, the L6450 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; four enable in-
BLOCK DIAGRAM (case of 4 bit)
PQFP44
PLCC44
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 withdstanding a
contact discharge of ±8KV with the IC biased.
March 1994
1/9
This is advanced information on a new product now in development or undergoing evaluation. Details are subject to change without notice.

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