Description
The UCC38083/4/5/6 is a family of BiCMOS pulse width modulation (PWM) controllers for dc-to-dc or off-line fixed-frequency current-mode switching power supplies.
Features
- D Programmable Slope Compensation D Internal Soft-Start on the UCC38083/4 D Cycle-by-Cycle Current Limiting D Low Start-Up Current of 120 µA and 1.5 mA
Typical Run Current
D Single External Component Oscillator
Programmable from 50 kHz to 1 MHz
D High-Current Totem-Pole Dual Output Stage
Drives Push-Pull Configuration with 1-A Sink and 0.5-A Source Capability
D Current Sense Discharge Transistor to
Improve Dynamic Response
D Internally Trimmed Bandgap Reference D Undervoltage Lockout with Hyster.