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Part Number : LM5026
Function : Active Clamp Current Mode PWM Controller
Maker : Texas Instruments

Pinouts :
LM5026 datasheet

Description :

DESCRIPTION
The LM5026 PWM controller contains all of the features necessary to implement power converters utilizing the active clamp / reset technique with current mode control. 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 device can be configured to control either a P-Channel or N-Channel clamp switch. The main gate driver features a compound configuration, consisting of both MOS and Bipolar devices, providing superior gate drive characteristics. The LM5026 can be configured to operate with bias voltages over a wide input range of 8V to 100V.
Additional features include programmable maximum duty cycle, line under-voltage lockout, cycle-by-cycle current limit, hiccup mode fault operation with adjustable timeout delay, PWM slope compensation, soft-start, 1MHz capable oscillator with synchronization input / output capability, precision reference and thermal shutdown.

FEATURES
• Current Mode Control
• Internal 100V Start-up Bias Regulator
• 3A Compound Main Gate Driver
• High Bandwidth Opto-coupler Interface
• Programmable Line Under-Voltage Lockout
(UVLO) with Adjustable Hysteresis
• Versatile Dual Mode Over-Current Protection
with hiccup delay timer
• Programmable Overlap or Deadtime between
the Main and Active Clamp Outputs
• Programmable Maximum Duty Cycle Clamp
• Programmable Soft-start
• Leading Edge Blanking
• Resistor Programmed 1MHz Capable Oscillator
• Oscillator Sync I/O Capability
• Precision 5V Reference


Datasheet PDF Download :
LM5026 pdf

Others datasheet of same file : LM5026,LM5026MT,LM5026MT/NOPB,LM5026MTX/NOPB,LM5026SD/NOPB
2015/01/28 13:52 2015/01/28 13:52

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