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LM25037-Q1

ACTIVE

Automotive 5.5V to 75V, 1.2A gate driver, dual-mode PWM controller With Alternating outputs -40-125C

Product details

Topology Full bridge, Half bridge, Push pull Control mode Current Duty cycle (max) (%) 96 Switching frequency (max) (kHz) 2000 Features Adjustable switching frequency, Current limiting, High-voltage startup, Multi-topology, Programmable max duty cycle, Programmable soft start, Synchronization pin UVLO thresholds on/off (V) Programmable/1.25V Operating temperature range (°C) -40 to 125 Rating Automotive Gate drive (typ) (A) 1.2 Vin (max) (V) 14
Topology Full bridge, Half bridge, Push pull Control mode Current Duty cycle (max) (%) 96 Switching frequency (max) (kHz) 2000 Features Adjustable switching frequency, Current limiting, High-voltage startup, Multi-topology, Programmable max duty cycle, Programmable soft start, Synchronization pin UVLO thresholds on/off (V) Programmable/1.25V Operating temperature range (°C) -40 to 125 Rating Automotive Gate drive (typ) (A) 1.2 Vin (max) (V) 14
TSSOP (PW) 16 32 mm² 5 x 6.4
  • 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) PDF | HTML 15 Jan 2016
Technical article Hybrid electric vehicles and electric vehicles need different isolated DC/DCs to w PDF | HTML 27 Dec 2017
Technical article Before digital control, there were general-purpose PWMs PDF | HTML 19 Oct 2016
EVM User's 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

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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.

User guide: PDF
Not available on TI.com
Simulation model

LM25037 PSpice Transient Model (Rev. B)

SNVM034B.ZIP (133 KB) - PSpice Model
Reference designs

PMP11186 — 250W Push-Pull Converter Reference Design for Automotive

The PMP11186 reference design is a non-isolated Push-Pull converter that operates from 6V - 16Vin and supplies +/- 25V@5A out (250W max).  This design operates at 200KHz with a peak efficiency of 88% (Vin = 12V).
Test report: PDF
Schematic: PDF
Package Pins Download
TSSOP (PW) 16 View options

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