AS3842 Datasheet Current Mode Controller

Manufacturer: ASTEC

Datasheet Details

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.

SEMICONDUCTOR AS384x Current Mode Controller.

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.

Brand Logo	Part Number	Description	Manufacturer
	AS3842	Current Mode Controller	Alpha