Unitrode UC2950
This device is a monolithic integrated circuit designed to provide high-current switching with low saturation voltages when activated by low-level logic signals. This driver has the high current capability to drive large capacitive loads with fast rise and fall times; but with high-speed internal flyback diodes, it is also ideal for inductive loads.FEATURES
DESCRIPTION
● Source or Sink 4.0A● Supply Voltage to 35V
● High-Current Output Diodes
● Tri-State Operation
● TTL and CMOS Input Compatibility
● Thermal Shutdown Protection
● 300kHz Operation Source and sink switches may be independently activated without regard to timing as a built-in interlock will keep the sink off if the source is on. Two UC2950s can be used together to form a full bridge, bipolar motor driver compatible with high frequency chopper current control.
● Low-Cost TO-220 Package
ABSOLUTE MAXIMUM RATINGS
(Note 1) TRUTH TABLE Source Drive Pin 2 Sink Drive Pin 5 Output Pin 4 Supply Voltage Range, VC . . . . . . . . . . . . . . . . . . . . . 8V to 35V Output Voltage Range, VO . . . . . . . . . . . . . . . . –3.0V to VC+3V Input Voltage Range, VIN . . . . . . . . . . . . . . . . . . –0.3V to +7.0V Peak Output Current (100 ms, 10% DC) . . . . . . . . . . . . . ± 4.0A Continuous Output Current . . . . . . . . . . . . . . . . . . . . . . . ± 2.0A Power Dissipation with Heat Sink. . . . . . . . . . . . . . . . . . . .