SG1635/SG3635
2A, HALF-BRIDGE DRIVER
DESCRIPTION
The SG1635 is a monolithic integrated circuit designed to interface lo...
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
TRUTH TABLE
Enable 0 0 1 1 Pulse 0 1 0 1 Output High High Low Off - High Z
1 = Open or High
6/91 Rev 1.1 5/94
Copyright © 1994
1
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LINFINITY
Microelectronics Inc.
SG1635/SG3635
ABSOLUTE MAXIMUM RATINGS (Note 1)
Supply
Voltage (VS) SG1635/SG3635 ........................................................