L9911U STMicroelectronics Integrated Circuit (Transistor Outline, Vertical) In Stock
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.
- 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
Key Features
- 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
Applications
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.
Specifications
| 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 |
Alternate & Equivalent Parts
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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