UC2950 Half-Bridge Bipolar Switch
FEATURES DESCRIPTION Source or Sink 4.0A This device is a monolithic integrated circuit designed to provide
high-current switching with low saturation voltages when activated by
low-level logic signals. 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. Supply Voltage to 35V High-Current Output Diodes Tri-State Operation TTL and CMOS Input Compatibility Thermal Shutdown Protection 300kHz Operation Low-Cost TO-220 Package 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. Two UC2950s can be used together to form a
full bridge, bipolar motor driver compatible with high frequency chopper current control. ABSOLUTE MAXIMUM RATINGS (Note 1) Supply Voltage Range, VC . 8V to 35V
Output Voltage Range, VO –3.0V to VC+3V
TRUTH TABLE
Input Voltage Range, VIN –0.3V to +7.0V
Peak Output Current (100 ms, 10% DC) . В± 4.0A
Sink Drive
Output
Source
Continuous Output Current . В± 2.0A
Pin 5
Pin 4
Drive
Pin 2
Power Dissipation with Heat Sink 15W
Power Dissipation in Free Air 2W
Low …
