SEMICONDUCTOR
AS384x
Current Mode Controller
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 sense pulled below ground
Description
The AS3842 family of control ICs provide pin-for-pin replacement of the industry standard UC3842 series of devices.
The devices are redesi...