Part Number: LM5025B
Function: Active Clamp Voltage Mode PWM Controller
Package: TSSOP 16, WSON 16 Pin Type
Manufacturer: Texas Instruments
Pinouts:
Description
The LM5025B PWM controller contains all of the features necessary to implement power converters utilizing the Active Clamp / Reset technique. With the active clamp technique, higher efficiencies and greater power densities can be realized compared to conventional catch winding or RDC clamp / reset techniques. Two control outputs are provided, the main power switch control (OUT_A) and the active clamp switch control (OUT_B). The two internal compound gate drivers parallel both MOS and Bipolar devices, providing superior gate drive characteristics. This controller is designed for high-speed operation including an oscillator frequency range up to 1MHz and total PWM and current sense propagation delays less than 100ns.
Features
• Internal Start-Up Bias Regulator
• 3A Compound Main Gate Driver
• Programmable Line Under-Voltage Lockout (UVLO) with Adjustable Hysteresis
• Voltage Mode Control with Feed-Forward
• Adjustable Dual Mode Over-Current Protection
• Programmable Overlap or Deadtime between the Main and Active Clamp Outputs
• Volt x Second Maximum Duty Cycle Clamp
• Programmable Soft-Start
• Current Sense Leading Edge Blanking
• Single Resistor Programmable Oscillator
• Oscillator Up / Down Sync Capability
• Precision 5V Reference
• Thermal Shutdown
LM5025B Datasheet PDF Download
Other data sheets are available within the file:
LM5025, LM5025BMTC/NOPB, LM5025BMTCX/NOPB, LM5025BSD, LM5025BSD/NOPB
