LTC3722-2

VCC to GND (Low Impedance Source) ......... 0.3 to 10V
                                         (Chip Self Regulates at 10.3V)
UVLO to GND................................................ 0.3 to VCC
                                                       All Other Pins to GND
(Low Impedance Source) ....................... 0.3 to 5.5V
 VCC (Current Fed) ................................................. 25mA
VREF Output Current ................................ Self Regulated
Outputs (A,B,C,D,E,F) Current .......................... ±100mA
                          Operating Temperature Range (Note 6)
LTC3722E ........................................... 40°C to 85°C
Storage Temperature Range ................. 65°C to 150°C
Lead Temperature (Soldering, 10 sec).................. 300°C

The LTC®3722-1/LTC3722-2 phase shift PWM controllers provide all of the control and protection functions necessary to implement a high efficiency, zero voltage switched (ZVS), full bridge power converter. Adaptive ZVS circuitry delays the turn-on signals for each MOSFET independent of internal and external component tolerances. Manual delay set mode enables secondary side control operation or direct control of switch turn-on delays.

The LTC3722-1/LTC3722-2 feature adjustable synchronous rectifier timing for optimal efficiency. A UVLO program input provides accurate system turn-on and turn-off voltages. The LTC3722-1 features peak current mode control with programmable slope compensation and leading edge blanking, while the LTC3722-2 employs voltage mode control with voltage feedforward capability.

The LTC3722-1/LTC3722-2 feature extremely low operating and start-up currents. Both devices include a full range of protection features and are available in the 24-pin surface mount (GN) package.