LM25037 Dual-Mode PWM Controller With Alternating Outputs | TI.com

LM25037 (ACTIVE)

Dual-Mode PWM Controller With Alternating Outputs

 

Description

The LM25037 PWM controller contains all the features necessary to implement balanced double-ended power converter topologies, such as push-pull, half-bridge and full-bridge. These double-ended topologies allow for higher efficiencies and greater power densities compared to common single-ended topologies such as the flyback and forward. The LM25037 can be configured for either voltage mode or current mode control with minimum external components. Two alternating gate drive outputs are provided, each capable of 1.2-A peak output current. The LM25037 can be configured to operate directly from the input voltage rail over an ultra-wide range of 5.5 V to 75 V. Additional features include programmable maximum duty cycle limit, line undervoltage lockout, cycle-by-cycle current limit and a hiccup mode fault protection with adjustable timeout delay, soft-start and a 2-MHz capable oscillator with synchronization capability, precision reference and thermal shutdown.

Features

  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 1: -40°C to +125°C Operating Junction Temperature
    • Device HBM ESD Classification Level 2
    • Device CDM ESD Classification Level C4B
  • Alternating Outputs for Double-Ended Topologies
  • Ultra Wide Input Operating Range from 5.5 V to 75 V
  • Current-Mode or Feed-Forward Voltage-Mode Control
  • Programmable Maximum Duty Cycle Limit
  • 2% Feedback Reference Accuracy
  • High Gain-Bandwidth Error Amplifier
  • Programmable Line Undervoltage Lockout (UVLO) With Adjustable Hysteresis
  • Versatile Dual Mode Overcurrent Protection With Hiccup Delay Timer
  • Programmable Soft-Start
  • Precision 5-V Reference Output
  • Current Sense Leading Edge Blanking
  • Resistor Programmed 2-MHz Capable Oscillator
  • Oscillator Synchronization Capability With Low-Frequency Lockout Protection
  • 16-Pin TSSOP

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Parametrics Compare all products in PWM controllers & resonant controllers

 
Topology
Control method
VCC (Min) (V)
VCC (Max) (V)
Frequency (Max) (kHz)
UVLO thresholds on/off (V)
Duty cycle (Max) (%)
Gate drive (Typ) (A)
Features
Rating
Operating temperature range (C)
Package Group
Package size: mm2:W x L (PKG)
LM25037 LM5032
Full-Bridge
Half-Bridge
Push-Pull    
Flyback
Forward    
Current
Feedforward
Voltage    
Current    
8     8    
14     15    
2000     2000    
Programmable/1.25V     Programmable/1.25V    
96     80    
1.2     2.5    
Adjustable Switching Frequency
Current Limiting
HV Start-up
Multi-topology
Programmable Max Duty Cycle
Programmable Soft Start
Synchronization Pin    
Adjustable Switching Frequency
Current Limiting
HV Start-up
Multi-topology
Programmable Max Duty Cycle
Synchronization Pin    
Catalog     Catalog    
-40 to 125     -40 to 125    
TSSOP | 16     TSSOP | 16    
16TSSOP: 22 mm2: 4.4 x 5 (TSSOP | 16)     16TSSOP: 22 mm2: 4.4 x 5 (TSSOP | 16)