Purchase LTC3722-2, In-stock LTC3722-2 From SeekIC.
Part Number: LTC3722-2
Description: The LTC®3722-1/LTC3722-2 phase shift PWM controllers provide all of the control and protection fun...
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LTC3722-2
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DataSheet
General Description
LTC3722-2 General Description
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.
LTC3722-2 Maximum Ratings
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
LTC3722-2 Features
Adaptive or Manual Delay Control for Zero Voltage Switching Operation
Adjustable Synchronous Rectification Timing for Highest Efficiency
Adjustable Maximum ZVS Delay
Adjustable System Undervoltage Lockout and Hysteresis
Programmable Leading Edge Blanking
Very Low Start-Up and Quiescent Currents
Current Mode (LTC3722-1) or Voltage Mode (LTC3722-2) Operation
Programmable Slope Compensation
VCC UVLO and 25mA Shunt Regulator
50mA Output Drivers
Soft-Start, Cycle-by-Cycle Current Limiting and Hiccup Mode Short-Circuit Protection
5V, 15mA Low Dropout Regulator
Adjustable Synchronous Rectification Timing for Highest Efficiency
Adjustable Maximum ZVS Delay
Adjustable System Undervoltage Lockout and Hysteresis
Programmable Leading Edge Blanking
Very Low Start-Up and Quiescent Currents
Current Mode (LTC3722-1) or Voltage Mode (LTC3722-2) Operation
Programmable Slope Compensation
VCC UVLO and 25mA Shunt Regulator
50mA Output Drivers
Soft-Start, Cycle-by-Cycle Current Limiting and Hiccup Mode Short-Circuit Protection
5V, 15mA Low Dropout Regulator
LTC3722-2 Typical Application
Telecommunications, Infrastructure Power Systems
Distributed Power Architectures
Server Power Supplies
Distributed Power Architectures
Server Power Supplies
LTC3722-2
PDF/DataSheet Download
- Datasheet: LTC3722-2
- File Size: 331776 KB
- Manufacturer: Linear
- Click here to Download
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