UCC38C44
Features
- Enhanced replacement for UCx84x and UCx84x A family with pin-to-pin patibility
- Operating frequency: 1MHz Maximum
- 50μA Startup Current, 100μA Maximum
- Low operating current: 2.3m A (at f OSC = 52k Hz)
- Fast, cycle-by-cycle overcurrent limiting: 35ns
- Peak driving current: ±1A. Rail-to-rail output:
- 25ns rise time
- 20ns fall time
- ±1% accurate 2.5V error amplifier reference
- Trimmed oscillator discharge current
- Undervoltage lockout protections
- VSSOP-8 package minimizes board space
2 Applications
- Switch-mode power supplies
- General purpose single-ended DC-DC or off-line isolated power converters
- Board mount power modules
3 Description
The UCCx8C4x family are high-performance, current-mode PWM controllers. The UCCx8C4x is an enhanced Bi CMOS version with pin-for-pin patibility to the industry standard UCx84x A family and UCx84x family of PWM controllers. The Bi CMOS technology offers lower power consumption to improve efficiency as well as faster current sense and...
