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LM74610-Q1

ACTIVE

0.48-V to 42-V, zero IQ automotive ideal diode controller

Product details

Vin (min) (V) 0.48 Vin (max) (V) 42 Number of channels 1 Features Automotive load dump compatibility, Linear control, Reverse current blocking, Reverse polarity protection Iq (typ) (mA) 0 Iq (max) (mA) 0 FET External single FET IGate source (typ) (µA) 10 IGate source (max) (µA) 9.4 IGate sink (typ) (mA) 0.01 Operating temperature range (°C) -40 to 125 IReverse (typ) (µA) 110 VSense reverse (typ) (mV) 20 Design support EVM Rating Automotive VGS (max) (V) 2.5 Device type Ideal diode controller Product type Ideal diode controller
Vin (min) (V) 0.48 Vin (max) (V) 42 Number of channels 1 Features Automotive load dump compatibility, Linear control, Reverse current blocking, Reverse polarity protection Iq (typ) (mA) 0 Iq (max) (mA) 0 FET External single FET IGate source (typ) (µA) 10 IGate source (max) (µA) 9.4 IGate sink (typ) (mA) 0.01 Operating temperature range (°C) -40 to 125 IReverse (typ) (µA) 110 VSense reverse (typ) (mV) 20 Design support EVM Rating Automotive VGS (max) (V) 2.5 Device type Ideal diode controller Product type Ideal diode controller
VSSOP (DGK) 8 14.7 mm² 3 x 4.9
  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Exceeds HBM ESD Classification Level 2
    • Device CDM ESD Classification Level C4B
  • Maximum reverse voltage of 45 V
  • No Positive Voltage limitation to Anode Terminal
  • Charge Pump Gate Driver for External N-Channel
    MOSFET
  • Lower Power Dissipation than Schottky
    Diode/PFET Solutions
  • Low Reverse Leakage Current
  • Zero IQ
  • Fast 2-µs Response to Reverse Polarity
  • –40°C to +125°C Operating Ambient Temperature
  • Can be Used in OR-ing Applications
  • Meets CISPR25 EMI Specification
  • Meets Automotive ISO7637 Transient
    Requirements with a Suitable TVS Diode
  • No Peak Current Limit
  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Exceeds HBM ESD Classification Level 2
    • Device CDM ESD Classification Level C4B
  • Maximum reverse voltage of 45 V
  • No Positive Voltage limitation to Anode Terminal
  • Charge Pump Gate Driver for External N-Channel
    MOSFET
  • Lower Power Dissipation than Schottky
    Diode/PFET Solutions
  • Low Reverse Leakage Current
  • Zero IQ
  • Fast 2-µs Response to Reverse Polarity
  • –40°C to +125°C Operating Ambient Temperature
  • Can be Used in OR-ing Applications
  • Meets CISPR25 EMI Specification
  • Meets Automotive ISO7637 Transient
    Requirements with a Suitable TVS Diode
  • No Peak Current Limit

The LM74610-Q1 is a controller device that can be used with an N-Channel MOSFET in a reverse polarity protection circuitry. It is designed to drive an external MOSFET to emulate an ideal diode rectifier when connected in series with a power source. A unique advantage of this scheme is that it is not referenced to ground and thus has Zero Iq.

The LM74610-Q1 controller provides a gate drive for an external N-Channel MOSFET and a fast response internal comparator to discharge the MOSFET Gate in the event of reverse polarity. This fast pull-down feature limits the amount and duration of reverse current flow if opposite polarity is sensed. The device design also meets CISPR25 Class 5 EMI specifications and automotive ISO7637 transient requirements with a suitable TVS diode.

The LM74610-Q1 is a controller device that can be used with an N-Channel MOSFET in a reverse polarity protection circuitry. It is designed to drive an external MOSFET to emulate an ideal diode rectifier when connected in series with a power source. A unique advantage of this scheme is that it is not referenced to ground and thus has Zero Iq.

The LM74610-Q1 controller provides a gate drive for an external N-Channel MOSFET and a fast response internal comparator to discharge the MOSFET Gate in the event of reverse polarity. This fast pull-down feature limits the amount and duration of reverse current flow if opposite polarity is sensed. The device design also meets CISPR25 Class 5 EMI specifications and automotive ISO7637 transient requirements with a suitable TVS diode.

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Technical documentation

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Type Title Date
* Data sheet LM74610-Q1 Zero IQ Reverse Polarity Protection Smart Diode Controller datasheet (Rev. B) PDF | HTML 07 Jun 2016
Analog Design Journal 如何將理想二極體控制器作為太陽能應用 中的可擴展輸入旁路開關使用 PDF | HTML 27 Jun 2024
Analog Design Journal 태양광 애플리케이션에서 확장 가능한 입력 바이패스 스위치로 이상적인 다이 오드 컨트롤러를 사용하는 방법 PDF | HTML 27 Jun 2024
Analog Design Journal How to use an ideal diode controller as a scalable input bypass switch in solar applications PDF | HTML 28 May 2024
Application note Basics of Ideal Diodes (Rev. B) PDF | HTML 05 Oct 2021
Test report Automotive Wide-VIN to Point-of-Load Power Supply Reference Design (Rev. A) 26 Mar 2020
E-book 11 Ways to Protect Your Power Path 03 Jul 2019
Technical article Build a sub-20W CISPR25 Class 5 power design for automotive infotainment processor PDF | HTML 02 May 2017
Application note Active OR-ing Solution with LM74610 Smart Diode Controller (Rev. B) 01 Mar 2017
Analog Design Journal Designing the front-end DC/DC conversion stage to withstand automotive transient 18 Jan 2017
Technical article Reverse-polarity protection comparison: diode vs. PFET vs. a smart diode solution PDF | HTML 21 Dec 2015
EVM User's guide LM74610-DQEVM User’s Guide 12 Oct 2015
EVM User's guide LM74610-SQ EVM User’s Guide 10 Oct 2015

Design & development

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

Evaluation board

DRV8243H-Q1EVM — DRV8243-Q1 evaluation module for automotive H-bridge driver with hardware interface

The DRV824x-Q1 family of devices is a fully integrated H-bridge driver intended for a wide range of automotive applications. The DRV824x-Q1 device can be configured as a single H-bridge driver, two independent half bridge drivers.  Designed in Texas Instruments' proprietary high power BiCMOS (...)

User guide: PDF | HTML
Not available on TI.com
Evaluation board

DRV8243S-Q1LEVM — DRV8243-Q1 evaluation module for automotive H-bridge driver with SPI interface

The DRV824x-Q1 family of devices is a fully integrated H-bridge driver intended for a wide range of automotive applications. The DRV824x-Q1 device can be configured as a single H-bridge driver, two independent half bridge drivers. Designed in Texas Instruments' proprietary high power BiCMOS process (...)

User guide: PDF | HTML
Not available on TI.com
Evaluation board

LM74610-DQEVM — Reverse Polarity Protection Smart Diode Controller OR-ing Evaluation Module

The LM74610-DQEVM evaluation module demostrates reverse polarity protection as a replacement of Schottkey Diodes and P-Channel MOSFETs in a diode OR-ing configuration. In this reverse polarity protection solution two LM74610 Smart Diode Controllers are used to drive two 40V (VDS) external N-Channel (...)

User guide: PDF
Not available on TI.com
Evaluation board

LM74610-SQEVM — Reverse Polarity Protection Smart Diode Controller Evaluation Module

The LM74610-SQEVM evaluation module demostrates reverse polarity protection as a replacement of Schottkey Diodes and P-Channel MOSFETs. In this reverse polarity protection solution the LM74610 Smart Diode Controller is used to provide a gate drive for 40V (VDS) external N-Channel MOSFET. The (...)

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

LM74610-Q1 TINA-TI Transient Reference Design

SNOM610.TSC (778 KB) - TINA-TI Reference Design
Simulation model

LM74610-Q1 TINA-TI Transient Spice Model

SNOM609.ZIP (28 KB) - TINA-TI Spice Model
Simulation model

LM74610-Q1 Unencrypted PSpice Transient Model Package (Rev. C)

SNOM560C.ZIP (55 KB) - PSpice Model
Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)

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