LM74703QDDFRQ1

$1.61

Description：AUTOMOTIVE IDEAL DIODE CONTROLLE
Series：-
Mfr：Texas Instruments
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:810932ac780a Category: OR Controllers, Ideal Diodes Brand: Texas Instruments

Consult the customer manager about the wholesale price.

consultation hotline：86-132-6715-2157

email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.

Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.

Product introduction

Product Detailed Parameters

Description：AUTOMOTIVE IDEAL DIODE CONTROLLE
Series：-
Mfr：Texas Instruments
Package：Tape & Reel (TR),Cut Tape (CT)
Type：N+1 ORing Controller
FET Type：N-Channel
Ratio - Input:Output：1:01
Internal Switch(s)：No
Delay Time - ON：1.4 µs
Delay Time - OFF：500 ns
Current - Output (Max)：2.3A
Current - Supply：80 µA
Voltage - Supply：3.2V ~ 65V
Applications：General Purpose
Operating Temperature：-40°C ~ 125°C (TA)
Mounting Type：Surface Mount
Package / Case：SOT-23-8 Thin, TSOT-23-8
Supplier Device Package：TSOT-23-8
Grade：Automotive
Qualification：AEC-Q100

Download product information

LM74703QDDFRQ1

Overview

The LM74703QDDFRQ1 is an automotive-grade ideal diode controller designed for N+1 redundancy and ORing applications. It operates with an external N-channel MOSFET to emulate a lossless ideal diode, supporting input voltages from 3.2 V to 65 V. The device features a quiescent current of 80 µA and supports operation across a temperature range of -40°C to +125°C. Packaged in an 8-pin SOT-23-THIN (DDF) format, it provides precise control over gate drive timing and protection functions.

Feature Summary

Automotive qualified for high-reliability power management systems
Enables lossless current sharing through external N-channel FET control
Integrated protection against reverse current and overcurrent conditions

Applications

Automotive ADAS camera power distribution
Automotive infotainment system power rails
N+1 redundant power supply architectures

Procurement Notes

Verify the specific ordering suffix matches the required package variant and tape/reel specifications. Confirm that the component meets AEC-Q100 qualification standards for the intended automotive application environment. Ensure compatibility with the target PCB footprint for the SOT-23-THIN-8 package before finalizing procurement orders.

Selection Notes

Select this controller when designing systems requiring seamless power source switching without voltage drop losses. It is suitable for applications needing precise current balancing between multiple power sources. Consider the external MOSFET selection carefully to match the controller's gate drive capabilities and thermal requirements.

Part Context

This component belongs to the LM7470x family of ideal diode controllers from Texas Instruments. It shares functional similarities with parts like the LM74700 and LM74704 but offers specific pinout and feature configurations tailored for distinct automotive power distribution topologies.

Replacement Considerations

Direct substitutes within the same family include the LM74700QDBVRQ1 and LM74704QDDFRQ1. Verify pin-to-pin compatibility and electrical parameter alignment before swapping components in existing designs.

How to buy

Online and offline orders are supported. If the item is available for online purchase, you can place it in the cart; for wholesale pricing, please contact our product manager for a quote.

Payment Method

Payment methods: T/T, WeChat Pay, credit cards, Google Pay, Apple Pay . Buyer covers shipping, fees, duties, and taxes; contact our product manager if you need a contract/procurement process.

Delivery time

In-stock items usually ship within 24 hours. Otherwise, shipment is arranged 1 to 2 days after the items arrive at our warehouse. Timing depends on destination and shipping method.

Freight calculation

Freight cost depends on destination, package size, and weight . We offer shipping options via DHL, FedEx, UPS, and TNT , and can ship using your freight account upon request.

Mode of Transportation

We ship via DHL, FedEx, UPS, and TNT. If you prefer a specific logistics provider, we can ship using your designated carrier.

Return and Refund

Returns are accepted within 60 days of invoice with RMA approval. Items must be resalable; original invoice and test report are required. No returns for customer errors.