L9911U STMicroelectronics Integrated Circuit (Transistor Outline, Vertical) In Stock

Name: L9911U
Brand: STMicroelectronics
SKU: L9911U
Availability: InStock

STMicroelectronics L9911U is a multi-function smart regulator, lamp relay, and diagnostic driver IC for automotive and industrial applications. It features a 3-phase brushless DC motor controller function with diagnostic output capability. Available in SIP-8 package with up to 25 mA supply current.

OBSOLETEIntegrated CircuitVerified Jun 2026

Package / Visual Reference

L9911UTransistor Outline, Vertical

Quick Facts

Manufacturer: STMicroelectronics
Package: Transistor Outline, Vertical
Pin Count: 8
Lifecycle: OBSOLETE
Datasheet: L9911U Datasheet PDF
Category: Integrated Circuit
RoHS: Compliant
Lead Time: 3–7 business days
Shipping: DHL Express · Worldwide

What are the key features of L9911U?

3-phase brushless DC motor controller with integrated diagnostic output
Multi-function smart regulator combining lamp relay and diagnostic driver in single IC
Low supply current up to 25 mA with SIP-8 flange mount package for compact designs

What is L9911U used for?

The L9911U is designed for automotive body control modules and industrial motor drive systems requiring integrated power management with diagnostics. It suits applications such as brushless DC fan control, smart lamp relay drivers, and multi-output power regulation in automotive ECUs. Its diagnostic capability makes it ideal for safety-critical designs where fault detection and reporting are essential.

What are the specifications of L9911U?

YTEOL	0
Analog IC - Other Type	3-PHASE BRUSHLESS DC MOTOR CONTROLLER
JESD-30 Code	R-XSFM-T8
Number of Functions	1
Package Body Material	UNSPECIFIED
Package Equivalence Code	SIP8,.1TB
Package Shape	RECTANGULAR
Package Style	FLANGE MOUNT
Qualification Status	Not Qualified
Supply Current-Max (Isup)	25mA
Supply Voltage-Max (Vsup)	18V
Supply Voltage-Min (Vsup)	7V
Supply Voltage-Nom (Vsup)	12.5V
Surface Mount	NO
Terminal Form	THROUGH-HOLE
Terminal Pitch	2.54mm
Terminal Position	SINGLE
Package	Transistor Outline, Vertical

Compliance & Regulatory

RoHS Status	Compliant
Lead-Free	Yes (Pb-Free)
ECCN	EAR99
HTS Code	8542.39.00.60

Where can I find the L9911U datasheet?

L9911U Datasheet Download

Official datasheet from STMicroelectronics

What are equivalent replacements for L9911U?

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

Frequently Asked Questions

What is the maximum supply current for the L9911U?

The L9911U has a maximum supply current (Isup) of 25 mA. This low quiescent current makes it suitable for power-sensitive automotive body control modules where efficiency across a 12 V vehicle bus is critical.

Which motor topologies does the L9911U support, and at what voltage levels?

The L9911U supports 3-phase brushless DC motor control topology. It integrates the controller function for BLDC motors typically operating in 12 V automotive systems, enabling compact drive solutions with built-in diagnostic reporting for fault-safe operation.

How does the SIP-8 flange mount package of the L9911U affect PCB layout in automotive designs?

The L9911U uses an SIP-8 flange mount package with 0.1 inch lead pitch, occupying minimal board space along a single row of 8 pins. This through-hole style package simplifies heatsinking via the flange and allows direct mounting to chassis panels in automotive ECU assemblies.

Is the L9911U a suitable replacement for discrete lamp relay and diagnostic circuits in body control modules?

Yes, the L9911U integrates lamp relay, diagnostic driver, and multi smart regulator functions into a single IC, replacing 3 or more discrete components. This integration reduces BOM count, cuts PCB area by several square centimeters, and improves diagnostic coverage in automotive body control designs.

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About STMicroelectronics

STMicroelectronics is a global semiconductor leader serving customers across the spectrum of electronics applications. ST's products are found in a wide range of applications including automotive, industrial, personal electronics, and communications.

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Lead Time3-7 business days

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OriginChina (Authorized)

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L9911U STMicroelectronics Integrated Circuit (Transistor Outline, Vertical) In Stock

What are the key features of L9911U?

What is L9911U used for?

What are the specifications of L9911U?

Compliance & Regulatory

Where can I find the L9911U datasheet?

What are equivalent replacements for L9911U?

Frequently Asked Questions

What is the maximum supply current for the L9911U?

Which motor topologies does the L9911U support, and at what voltage levels?

How does the SIP-8 flange mount package of the L9911U affect PCB layout in automotive designs?

Is the L9911U a suitable replacement for discrete lamp relay and diagnostic circuits in body control modules?

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 STMicroelectronics

More from STMicroelectronics

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