LM74502QDDFRQ1 Texas Instruments Integrated Circuit (SOT23 (8-Pin)) In Stock

Name: LM74502QDDFRQ1
Brand: Texas Instruments
SKU: LM74502QDDFRQ1
Availability: InStock

The LM74502QDDFRQ1 is an automotive-grade hot swap and reverse polarity protection controller from Texas Instruments, operating from 3.2V to 65V with adjustable overvoltage threshold and a single protected channel in an 8-pin SOT23 package.

ACTIVEIntegrated CircuitVerified Jul 2026

Package / Visual Reference

LM74502QDDFRQ1SOT23 (8-Pin)

Quick Facts

Manufacturer: Texas Instruments
Package: SOT23 (8-Pin)
Pin Count: 8
Lifecycle: ACTIVE
Datasheet: LM74502QDDFRQ1 Datasheet PDF
Category: Integrated Circuit
Price: From $0.6928(MOQ 255)
Temp Range: -40.0°C to 125.0°C
RoHS: Compliant
Lead Time: 3–7 business days
Shipping: DHL Express · Worldwide

What are the key features of LM74502QDDFRQ1?

Wide input voltage range from 3.2V to 65V
Adjustable overvoltage protection threshold up to 65V
Single (1) channel analog fault protection controller
60A gate drive strength for hot-swap switching
Compact 8-pin SOT23-8 package for automotive PCB layouts
JESD-609 e4 lead-free automotive-grade termination finish

What is LM74502QDDFRQ1 used for?

The LM74502QDDFRQ1 is well suited for automotive electronic control units, body control modules, and infotainment power rails that require robust reverse polarity and overvoltage protection across a 3.2V to 65V input range. Its adjustable threshold and 60A gate drive strength make it ideal for hot-swap power distribution and load switch applications in 12V and 24V vehicle electrical systems.

What are the specifications of LM74502QDDFRQ1?

Pbfree Code	Yes
YTEOL	15
Adjustable Threshold	YES
Analog IC - Other Type	INPUT FAULT PROTECTION CONTROLLER
Input Voltage-Max	65V
Input Voltage-Min	3.2V
JESD-30 Code	R-PDSO-G8
JESD-609 Code	e4
Number of Channels	1
Number of Functions	1
Package Body Material	PLASTIC/EPOXY
Package Equivalence Code	TSSOP8,.11
Package Shape	RECTANGULAR
Package Style	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Cel)	260
Screening Level	AEC-Q100
Supply Voltage-Max (Vsup)	65V
Supply Voltage-Min (Vsup)	3.2V
Supply Voltage-Nom (Vsup)	12V
Surface Mount	YES
Terminal Finish	Nickel/Palladium/Gold (Ni/Pd/Au)
Terminal Form	GULL WING
Terminal Pitch	0.65mm
Terminal Position	DUAL
Threshold Voltage-Nom	+2.8V
Time@Peak Reflow Temperature-Max (s)	30
Package	SOT23 (8-Pin)

Compliance & Regulatory

RoHS Status	Compliant
Lead-Free	Yes (Pb-Free)
Moisture Sensitivity Level	MSL 1
ECCN	EAR99
HTS Code	8542.39.00.90
Country of Origin	Philippines

Where can I find the LM74502QDDFRQ1 datasheet?

LM74502QDDFRQ1 Datasheet Download

Official datasheet from Texas Instruments

What are equivalent replacements for LM74502QDDFRQ1?

No known alternates. Submit an RFQ and our team can suggest alternatives.

Frequently Asked Questions

How wide is the input voltage range supported by the LM74502QDDFRQ1?

The LM74502QDDFRQ1 operates across a wide 3.2V to 65V input range, allowing it to protect automotive electrical systems including 12V and 24V rails against reverse polarity and overvoltage transients up to 65V.

Why does the SOT23 8-pin package matter for automotive hot-swap designs?

The 8-pin SOT23 package keeps board footprint small while supporting a 60A gate drive strength, which lets designers implement hot-swap and reverse polarity protection in space-constrained automotive control modules without added heat-sinking.

Can the overvoltage protection threshold be adjusted for different vehicle bus voltages?

Yes, the LM74502QDDFRQ1 provides an adjustable overvoltage threshold that can be configured for 12V, 24V, or 48V vehicle bus architectures, giving engineers flexibility to set trip points precisely within the 3.2V to 65V operating window.

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Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.

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AvailabilityIn Stock

Reference Price (USD)

From $0.6928

Buy from 1pc · Factory-direct pricing

Qty.	Unit Price	Ext. Price
255+	$0.7994	$203.85
325+	$0.7727	$251.13
435+	$0.6928	$301.37

pcs

Unit price: $0.7994 · Total: $203.85

In Stock · 24h Response · Worldwide Shipping

Direct Contact

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Lead Time3-7 business days

MOQFrom 1 piece

ShippingDHL / FedEx / UPS

OriginChina (Authorized)

Response within 24 hours · Worldwide shipping

“The anti-counterfeit verification gave us confidence we'd never had with other China suppliers.”

Rajesh Patel

Procurement Manager, VoltEdge Energy, India

LM74502QDDFRQ1 Texas Instruments Integrated Circuit (SOT23 (8-Pin)) In Stock

What are the key features of LM74502QDDFRQ1?

What is LM74502QDDFRQ1 used for?

What are the specifications of LM74502QDDFRQ1?

Compliance & Regulatory

Where can I find the LM74502QDDFRQ1 datasheet?

What are equivalent replacements for LM74502QDDFRQ1?

Frequently Asked Questions

How wide is the input voltage range supported by the LM74502QDDFRQ1?

Why does the SOT23 8-pin package matter for automotive hot-swap designs?

Can the overvoltage protection threshold be adjusted for different vehicle bus voltages?

Related Guides

CSD87313DMS Synchronous Buck Power Stage Design Guide

STEF05SGR eFuse Selection Guide for 5 V Overcurrent Protection

C0402C103K3RACTU Selection Guide: Choosing a 10 nF 0402 MLCC

STM32H753VIT6 MCU Selection Guide: Memory, Package, Connectivity, and Security

Why Buy from FindMyChip

About Texas Instruments

More from Texas Instruments

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