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UC2950 Series

4-A half bridge bipolar switch

Manufacturer: Texas Instruments

Catalog

4-A half bridge bipolar switch

Key Features

Source or Sink 4.0ASupply Voltage to 35VHigh-Current Output DiodesTri-State OperationTTL and CMOS Input CompatibilityThermal Shutdown Protection300kHz OperationLow-Cost TO-220 PackageSource or Sink 4.0ASupply Voltage to 35VHigh-Current Output DiodesTri-State OperationTTL and CMOS Input CompatibilityThermal Shutdown Protection300kHz OperationLow-Cost TO-220 Package

Description

AI
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. 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. 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. 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.