LM5026MT Part Information

Details for LM5026MT by Texas Instruments

Electronic & Electrical Components>Semiconductors - ICs>Power Management

Part Description

The LM5026 PWM controller contains all of the features necessary to implement power converters utilizing the active clamp and 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 and 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 8 V to 100 V. Additional features include programmable maximum duty cycle, line undervoltage lockout, cycle-by-cycle current limit, hiccup mode fault operation with adjustable timeout delay, PWM slope compensation, soft-start, 1-MHz capable oscillator with synchronization input and output capability, precision reference, and thermal shutdown.

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Part Features

  • 3-A Compound Main Gate Driver
  • Current-Mode Control
  • High Bandwidth Optocoupler Interface
  • Internal 100-V Start-Up Bias Regulator
  • Leading Edge Blanking
  • Oscillator Sync I/O Capability
  • Precision 5-V Reference
  • Programmable Line Undervoltage Lockout (UVLO) With Adjustable Hysteresis
  • Programmable Maximum Duty Cycle Clamp
  • Programmable Overlap or Deadtime between the Main and Active Clamp Outputs
  • Programmable Soft-Start
  • Resistor Programmed 1-MHz Capable Oscillator
  • Versatile Dual Mode Overcurrent Protection With Hiccup Delay Timer

Part Specifications

Input Voltage 48V
Output Voltage -
Output Current 3A
Supply Voltage Min 8V
Supply Voltage Max 15V
Controller IC Case Style TSSOP
No. of Pins 16Pins
Frequency 590kHz
Operating Temperature Min -40°C
Operating Temperature Max 125°C
Product Range -
Automotive Qualification Standard -
RoHS Phthalates Compliant Yes
MSL MSL 1 - Unlimited
SVHC No SVHC (27-Jun-2018)
Base Number 5026
Controller Type PWM
Input Voltage Max 100V
Operating Temperature Range -40°C to +125°C
Output Voltage Max 3.3V
Supply Voltage Range 8V to 15V
Termination Type Surface Mount Device
RoHS Compliant

Alternative Part Descriptions

  • Current Mode PWM Controller 3A 16-Pin TSSOP Rail | Avnet America

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