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LM74610-Q1

現行

0.48-V 至 42-V、零 IQ 汽車理想二極體控制器

產品詳細資料

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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技術文件

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檢視所有 10
類型 標題 日期
* Data sheet LM74610-Q1 Zero IQ Reverse Polarity Protection Smart Diode Controller datasheet (Rev. B) PDF | HTML 2016年 6月 7日
Application note Basics of Ideal Diodes (Rev. B) PDF | HTML 2021年 10月 5日
Test report Automotive Wide-VIN to Point-of-Load Power Supply Reference Design (Rev. A) 2020年 3月 26日
E-book 11 Ways to Protect Your Power Path 2019年 7月 3日
Technical article Build a sub-20W CISPR25 Class 5 power design for automotive infotainment processor PDF | HTML 2017年 5月 2日
Application note Active OR-ing Solution with LM74610 Smart Diode Controller (Rev. B) 2017年 3月 1日
Analog Design Journal Designing the front-end DC/DC conversion stage to withstand automotive transient 2017年 1月 18日
Technical article Reverse-polarity protection comparison: diode vs. PFET vs. a smart diode solution PDF | HTML 2015年 12月 21日
EVM User's guide LM74610-DQEVM User’s Guide 2015年 10月 12日
EVM User's guide LM74610-SQ EVM User’s Guide 2015年 10月 10日

設計與開發

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模擬型號

LM74610-Q1 TINA-TI Transient Reference Design

SNOM610.TSC (778 KB) - TINA-TI Reference Design
模擬型號

LM74610-Q1 TINA-TI Transient Spice Model

SNOM609.ZIP (28 KB) - TINA-TI Spice Model
模擬型號

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

SNOM560C.ZIP (55 KB) - PSpice Model
模擬工具

PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具

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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