SG1635 Datasheet, PDF (1/5 Pages) Microsemi Corporation – 2A, HALF-BRIDGE DRIVER

SG1635/SG3635
2A, HALF-BRIDGE DRIVER
DESCRIPTION
The SG1635 is a monolithic integrated circuit designed to interface
low-level logic signals with high-current, inductive, or capacitive
loads. This device is particularly adept at high-speed pulse width
modulation for motor drives or Class D audio amplifiers, and when
used in pairs, they can provide full bridge drive for bi-directional
control.
With TTL-compatible units, this device will either source or sink up
to 5A of peak current with interlock protection to insure that source
and sink cannot be on simultaneously. Additional protection is
provided by thermal shutdown of the source output if the chip
temperature rises above 160°C. High speed internal commutating
diodes are also included.
FEATURES
• Source or sink 5A peak
• Half-bridge with internal diodes
• TTL input compatibility
• Either dual- or tri-state output
• Direct PWM motor drive from microprocessor
• Built-in thermal protection
• SG3635P replaces UDN2935Z
HIGH RELIABILITY FEATURES
- SG1635
♦ Available to MIL-STD-883
♦ LMI level "S" processing available
BLOCK DIAGRAM - SG1635/3635
6/91 Rev 1.1 5/94
Copyright © 1994
TRUTH TABLE
Enable Pulse Output
0
0
High
0
1
High
1
0
Low
1
1 Off - High Z
1 = Open or High
LINFINITY Microelectronics Inc.
1
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