Description
The AS3842 family of control ICs provide pin-for-pin replacement of the industry standard UC3842 series of devices.
The devices are redesigned to provide significantly improved tolerances in power supply manufacturing.
The 2.5 V reference has been trimmed to 1.0% tolerance.
Features
- 2.5 V bandgap reference trimmed to 1.0% and temperature-compensated.
- Standard temperature range extended to 105¡C.
- AS3842/3 oscillations trimmed for precision duty cycle clamp.
- AS3844/5 have exact 50% max duty cycle clamp.
- Advanced oscillator design simplifies synchronization.
- Improved specs on UVLO and hysteresis provide more predictable
start-up and shutdown.
- Improved 5 V regulator provides better AC noise immunity.
- Guaranteed performance with current s.
AS3843 Datasheet
