Part Number
|
SI9120 |
Manufacturer
|
Vishay Siliconix |
Description
|
Universal Input Switchmode Controller |
Published
|
Apr 8, 2005 |
Detailed Description
|
Si9120
Vishay Siliconix
Universal Input Switchmode Controller
FEATURES
D 10- to 450-V Input Range D Current-Mode Contro...
|
Datasheet
|
SI9120
|
Overview
Si9120
Vishay Siliconix
Universal Input Switchmode Controller
FEATURES
D 10- to 450-V Input Range D Current-Mode Control D 125-mA Output Drive D Internal Start-Up Circuit D Internal Oscillator (1 MHz) D SHUTDOWN and RESET
DESCRIPTION
The Si9120 is a BiC/DMOS integrated circuit designed for use in low-power, high-efficiency off-line power supplies.
High-voltage DMOS inputs allow the controller to work over a wide range of input voltages (10- to 450-VDC).
Current-mode PWM control circuitry is implemented in CMOS to reduce quiescent current to less than 1.
5 mA.
A CMOS output driver provides high-speed switching for MOSFET devices with gate charge, Qg, up to 25 nC, enough to supply 30 W of out...
Similar Datasheet