Description
ą UCC29421, UCC29422, UCC39421, UCC39422 MULTIMODE HIGHĆFREQUENCY PWM CONTROLLER SLUS246C * OCTOBER 1999 * REVISED FEBRUARY 2005 D O.
SYNC/SD 13
RT 14
1.
CROSS COND.
Features
* include pulse-by-pulse current limiting, and a low 5-µA quiescent current during shutdown. The UCC39422 incorporates programmable power-on reset circuitry and an uncommitted comparator for low voltage detection. The available packages are 20-pin TSSOP or 20-pin N for the UCC39422, and 16-pin TSSOP o
Applications
* D Up to 2-MHz Oscillator D Synchronizable Fixed Frequency
Operation
D High-Efficiency Low-Power Mode D High-Efficiency at Very Low-Power
with Programmable Variable Frequency Mode
D Pulse-by-Pulse Current Limit D 5-µA Supply Current in Shutdown D 150-µA Supply Current in Sleep
Mode
D Selectable NMOS