LM74801QDRRRQ1
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Texas Instruments LM74801QDRRRQ1

Manufacturer No:
LM74801QDRRRQ1
Manufacturer:
Texas Instruments
Package:
Tape & Reel (TR)
Description:
3-V TO 65-V, AUTOMOTIVE IDEAL DI
Delivery:
Payment:
iso14001
iso45001
iso9001
iso13485

Product Introduction

Overview

The LM74801QDRRRQ1 is an ideal diode controller produced by Texas Instruments, designed to drive and control external back-to-back N-Channel MOSFETs. This device emulates an ideal diode rectifier with power path ON/OFF control and overvoltage protection, making it suitable for various automotive applications. It operates within a wide input supply range of 3 V to 65 V, allowing protection and control of 12-V and 24-V automotive battery-powered Electronic Control Units (ECUs). The device can withstand negative supply voltages down to –65 V and features integrated ideal diode control for reverse input protection and output voltage holdup.

Key Specifications

Parameter Value Unit
Operating Temperature Range –40 to 125 °C
Input Voltage Range 3 to 65 V
Reverse Input Protection Down to –65 V V
Forward Voltage Drop Regulation 10.5 mV (LM74800-Q1) mV
Reverse Detection Threshold –4.5 mV mV
Peak Gate Turnon Current (DGATE) 20 mA mA
Peak Gate Turnoff Current (DGATE) 2.6 A A
Shutdown Current (EN/UVLO=Low) 2.87 µA µA
Package Type 12-Pin WSON (DRR)
Thermal Resistance (Junction-to-Ambient) 60.9 °C/W °C/W

Key Features

  • AEC-Q100 qualified for automotive applications
  • Device temperature grade 1: –40°C to +125°C ambient operating temperature range
  • Device HBM ESD classification level 2 and CDM ESD classification level C4B
  • Drives external back-to-back N-Channel MOSFETs in common drain and common source configurations
  • Ideal diode operation with low forward voltage drop regulation
  • Low reverse detection threshold with fast response (0.5 µs)
  • Adjustable overvoltage protection
  • Meets automotive ISO7637 transient requirements with a suitable TVS diode
  • Available in space-saving 12-Pin WSON package

Applications

  • Automotive battery protection
  • Advanced Driver Assistance Systems (ADAS) domain controllers
  • Camera Electronic Control Units (ECUs)
  • Head Units
  • USB HUBs
  • Active ORing for redundant power systems

Q & A

  1. What is the operating temperature range of the LM74801QDRRRQ1?

    The operating temperature range is –40°C to +125°C.

  2. What is the input voltage range of the LM74801QDRRRQ1?

    The input voltage range is 3 V to 65 V.

  3. How does the LM74801QDRRRQ1 protect against reverse input voltages?

    The device provides reverse input protection down to –65 V.

  4. What is the forward voltage drop regulation for the LM74800-Q1 variant?

    The forward voltage drop regulation is 10.5 mV.

  5. What is the peak gate turnon current for the DGATE?

    The peak gate turnon current for the DGATE is 20 mA.

  6. How does the LM74801QDRRRQ1 meet automotive transient requirements?

    The device meets automotive ISO7637 transient requirements with a suitable TVS diode.

  7. What package type is the LM74801QDRRRQ1 available in?

    The device is available in a 12-Pin WSON (DRR) package.

  8. What is the thermal resistance (junction-to-ambient) of the LM74801QDRRRQ1?

    The thermal resistance (junction-to-ambient) is 60.9 °C/W.

  9. What are some common applications of the LM74801QDRRRQ1?

    Common applications include automotive battery protection, ADAS domain controllers, camera ECUs, head units, and USB HUBs.

  10. Does the LM74801QDRRRQ1 support active ORing for redundant power systems?

Product Attributes

Type:N+1 ORing Controller
FET Type:N-Channel
Ratio - Input:Output:1:1
Internal Switch(s):No
Delay Time - ON:2.6 µs
Delay Time - OFF:500 ns
Current - Output (Max):5A
Current - Supply:413 µA
Voltage - Supply:3V ~ 65V
Applications:Automotive, Redundant Power Supplies
Operating Temperature:-40°C ~ 125°C (TJ)
Mounting Type:Surface Mount, Wettable Flank
Package / Case:12-WFDFN Exposed Pad
Supplier Device Package:12-WSON (3x3)
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Similar Products

Part Number LM74801QDRRRQ1 LM74800QDRRRQ1
Manufacturer Texas Instruments Texas Instruments
Product Status Active Active
Type N+1 ORing Controller N+1 ORing Controller
FET Type N-Channel N-Channel
Ratio - Input:Output 1:1 1:1
Internal Switch(s) No No
Delay Time - ON 2.6 µs 2.6 µs
Delay Time - OFF 500 ns 500 ns
Current - Output (Max) 5A 5A
Current - Supply 413 µA 413 µA
Voltage - Supply 3V ~ 65V 3V ~ 65V
Applications Automotive, Redundant Power Supplies Automotive, Redundant Power Supplies
Operating Temperature -40°C ~ 125°C (TJ) -40°C ~ 125°C (TJ)
Mounting Type Surface Mount, Wettable Flank Surface Mount, Wettable Flank
Package / Case 12-WFDFN Exposed Pad 12-WFDFN Exposed Pad
Supplier Device Package 12-WSON (3x3) 12-WSON (3x3)

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