Rev 1.2a 3/18/2005

Microsemi Inc.

Copyright

© 1997

11861 Western Avenue

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∞ Garden Grove, CA 92841

1

(714) 898-8121

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∞ FAX: (714) 893-2570

SG1644/SG2644/SG3644

FEATURES

••••• Totem pole outputs with 3.0A peak current

capability.

••••• Supply voltage to 22V.

••••• Rise and fall times less than 25ns.

••••• Propagation delays less than 20ns.

••••• Non-inverting high-speed high-voltage Schottky

logic.

••••• Efficient operation at high frequency.

••••• Available in:

8 Pin Plastic and Ceramic DIP

14 Pin Ceramic DIP

16 Pin Plastic S.O.I.C.

20 Pin LCC

TO-99

TO-66

HIGH RELIABILITY FEATURES - SG1644

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♦ Available to MIL-STD-883

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♦ Radiation data available

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♦ LMI level "S" processing available

DESCRIPTION

The SG1644, 2644, 3644 is a dual non-inverting monolithic high

speed driver. This device utilizes high voltage Schottky logic to

convert TTL signals to high speed outputs up to 18V. The totem

pole outputs have 3A peak current capability, which enables them

to drive 1000pF loads in typically less than 25ns. These speeds

make it ideal for driving power MOSFETs and other large capaci-

tive loads requiring high speed switching.

In addition to the standard packages, Silicon General offers the 16

pin S.O.I.C. (DW-package) for commercial and industrial applica-

tions, and the Hermetic TO-66 (R-package) for military use.

These packages offer improved thermal performance for applica-

tions requiring high frequencies and/or high peak currents.

DUAL HIGH SPEED DRIVER

6.5V

V

REG

V

CC

2.5K

INV. INPUT

OUTPUT

3K

3K

POWER

GND

LOGIC

GND

(Substrate)

EQUIVALENT CIRCUIT SCHEMATIC