Si9110/9111
Vishay Siliconix
High-
Voltage Switchmode Controllers
FEATURES
D D D D 10- to 120-V Input Range Current-Mode Control High-Speed, Source-Sink Output Drive High Efficiency Operation ( 80%) D Internal Start-Up Circuit D Internal Oscillator (1 MHz) D SHUTDOWN and RESET D Reference Selection Si9110 − "1% Si9111 − "10%
DESCRIPTION
The Si9110/9111 are BiC/DMOS integrated circuits designed for use as high-performance switchmode controllers.
A high-
voltage DMOS input allows the controller to work over a wide range of input
voltages (10- to 120-VDC).
Current-mode PWM control circuitry is implemented in
CMOS to reduce internal power consumption to less than 10 mW.
A push-pull output drive...