Product details

Topology Full-Bridge, Half-Bridge, Push-Pull Duty cycle (Max) (%) 96 Supply voltage (Max) (V) 14 UVLO thresholds on/off (V) Programmable/1.25V Features Adjustable Switching Frequency, Current Limiting, HV Start-up, Multi-topology, Programmable Max Duty Cycle, Programmable Soft Start, Synchronization Pin Operating temperature range (C) -40 to 125 Rating Catalog Frequency (Max) (kHz) 2000 Gate drive (Typ) (A) 1.2
Topology Full-Bridge, Half-Bridge, Push-Pull Duty cycle (Max) (%) 96 Supply voltage (Max) (V) 14 UVLO thresholds on/off (V) Programmable/1.25V Features Adjustable Switching Frequency, Current Limiting, HV Start-up, Multi-topology, Programmable Max Duty Cycle, Programmable Soft Start, Synchronization Pin Operating temperature range (C) -40 to 125 Rating Catalog Frequency (Max) (kHz) 2000 Gate drive (Typ) (A) 1.2
TSSOP (PW) 16 22 mm² 5 x 4.4
  • 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
  • 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

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.

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.

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Technical documentation

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Type Title Date
* Data sheet LM25037/-Q1 Dual-Mode PWM Controller With Alternating Outputs datasheet (Rev. E) 15 Jan 2016
Application note Topology Selection for Isolated Power Supplies in Patient Monitor (Rev. A) 02 Sep 2020
Application note Designing High Voltage Power Supply for Ultrasound Smart Probes 22 Oct 2019
Selection guide Power Management Guide 2018 (Rev. R) 25 Jun 2018
User guide AN-1861 LM25037 Evaluation Board (Rev. C) 05 May 2013
Application note An Alternative Approach to Higher-Power Boost Converters 30 Nov 2009

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

LM25037EVAL — Evaluation Boards for LM25037 - Dual PWM Controller with Alternating Outputs

The LM25037 evaluation board is designed to provide the design engineer with a fully functional power converter based on push-pull topology to evaluate the LM25037 controller.

In stock
Limit: 3
Simulation model

LM25037 PSpice Transient Model (Rev. B)

SNVM034B.ZIP (133 KB) - PSpice Model
Simulation model

LM5037 TINA-TI Transient Spice Model

SNVM457.ZIP (25 KB) - TINA-TI Spice Model
Simulation model

LM5037 TINA-TI Transient Reference Design

SNVM458.TSC (1264 KB) - TINA-TI Reference Design
Simulation model

LM25037 Unencrypted PSpice Transient Model

SNVMBL4.ZIP (7 KB) - PSpice Model
Reference designs

PMP7797 — 6V-42V Input 12V/5A SEPIC for Automotive Applications

PMP7797 is a wide-input SEPIC converter designed for automotive applications. This design uses the LM25037Q push-pull controller as an interleaved boost, which incorporates two gate drivers for controlling two sets of MOSFET switches. The input is 12V nominal with a working range of 6V at cold crank (...)
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TSSOP (PW) 16 View options

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