LTC3722
PRODUCTIONSynchronous Dual Mode Phase Modulated Full Bridge Controllers
- Part Models
- 10
- 1ku List Price
- Starting From $9.18
Overview
- 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 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
- 24-Pin Surface Mount GN Package
The LTC3722-1/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.
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.
Applications
- Telecommunications, Infrastructure Power Systems
- Distributed Power Architectures
- Server Power Supplies
Documentation
Data Sheet 1
User Guide 1
Technical Articles 1
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| LTC3722EGN-1#PBF | 24-Lead SSOP (Narrow 0.15 Inch) | ||
| LTC3722EGN-1#TRPBF | 24-Lead SSOP (Narrow 0.15 Inch) | ||
| LTC3722EGN-2#PBF | 24-Lead SSOP (Narrow 0.15 Inch) | ||
| LTC3722EGN-2#TRPBF | 24-Lead SSOP (Narrow 0.15 Inch) | ||
| LTC3722HGN-1#PBF | 24-Lead SSOP (Narrow 0.15 Inch) | ||
| LTC3722HGN-1#TRPBF | 24-Lead SSOP (Narrow 0.15 Inch) | ||
| LTC3722IGN-1#PBF | 24-Lead SSOP (Narrow 0.15 Inch) | ||
| LTC3722IGN-1#TRPBF | 24-Lead SSOP (Narrow 0.15 Inch) | ||
| LTC3722IGN-2#PBF | 24-Lead SSOP (Narrow 0.15 Inch) | ||
| LTC3722IGN-2#TRPBF | 24-Lead SSOP (Narrow 0.15 Inch) |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Aug 10, 2022 - 22_0177 Laser Top Mark Conversion for QSOP20_24_28 Assembled in ADPG [PNG] and UTL |
||
| LTC3722EGN-1#PBF | PRODUCTION | |
| LTC3722EGN-1#TRPBF | PRODUCTION | |
| LTC3722EGN-2#PBF | PRODUCTION | |
| LTC3722EGN-2#TRPBF | PRODUCTION | |
| LTC3722HGN-1#PBF | PRODUCTION | |
| LTC3722HGN-1#TRPBF | PRODUCTION | |
| LTC3722IGN-1#PBF | PRODUCTION | |
| LTC3722IGN-1#TRPBF | PRODUCTION | |
| LTC3722IGN-2#PBF | PRODUCTION | |
| LTC3722IGN-2#TRPBF | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
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Request a Driver/SoftwareHardware Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
| Hot Swap Controllers 1 | ||
| LT4363 | RECOMMENDED FOR NEW DESIGNS | High Voltage Surge Stopper with Current Limit |
Tools & Simulations
LTspice 3
- LTC4440 - Power Monitor, Control, and Protection, LTC3722 - Switching Regulators
- LTC4440/LTC3722-1 Demo Circuit - Synchronous Phase-Modulated Full-Bridge Converter (36-72V to 5V @ 20A)
- LTC4440-5/LTC3722-1 Demo Circuit - Synchronous Phase-Modulated Full-Bridge Converter (36-60V to 5V @ 20A)
Models for the following parts are available in LTspice:
- LTC3722-1
- LTC3722-2
LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.
Evaluation Kits
LTC3722-1 Demo Board | Isolated Full-Bridge, 36V to 72V Input, VOUT = 12V @ 35A