LB11923V-TLM-E

$3.26

Description：IC MOTOR DRIVER 4.4V-7V 44SSOP
Series：-
Mfr：onsemi
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:f21898b41bc5 Category: Motor Drivers, Controllers Brand: onsemi

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Product introduction

Product Detailed Parameters

Description：IC MOTOR DRIVER 4.4V-7V 44SSOP
Series：-
Mfr：onsemi
Package：Tape & Reel (TR),Cut Tape (CT)
Motor Type - Stepper：-
Motor Type - AC, DC：Brushless DC (BLDC)
Function：Controller - Commutation, Direction Management
Output Configuration：Pre-Driver - Half Bridge (3)
Interface：PWM
Technology：Bipolar
Step Resolution：-
Applications：General Purpose
Current - Output：-
Voltage - Supply：4.4V ~ 7V
Voltage - Load：-
Operating Temperature：-20°C ~ 80°C (TA)
Mounting Type：Surface Mount
Package / Case：44-LSSOP (0.220", 5.60mm Width)
Supplier Device Package：44-SSOP
Grade：-

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LB11923V-TLM-E

Overview

The LB11923V-TLM-E is a bipolar motor driver IC manufactured by onsemi, designed for brushless DC (BLDC) fan applications. It operates within a supply voltage range of 4.4V to 7V and features a 44-SSOP surface-mount package. The device integrates three half-bridge pre-drivers for commutation and direction management via PWM interfaces. It supports an operating temperature range from -20°C to 80°C and complies with RoHS3 standards.

Feature Summary

Integrates three half-bridge pre-drivers for BLDC motor control
Supports PWM interface for commutation and direction management
Designed specifically for fan and motor driver applications

Applications

Brushless DC (BLDC) fan motors
Computer cooling systems
Server and data center thermal management

Procurement Notes

This component is officially marked as obsolete or end-of-life by the manufacturer. Verification of current availability requires checking authorized distributors for remaining stock or surplus inventory. Designers should initiate replacement strategies immediately due to discontinuation status. Confirm RoHS3 compliance and moisture sensitivity level (MSL 3) requirements during procurement planning.

Selection Notes

Select this part only if the application strictly requires a 4.4V to 7V supply range and a 44-pin SSOP footprint. Verify that the bipolar drive architecture aligns with the specific BLDC motor characteristics. Consider the limited operational temperature range (-20°C to 80°C) against environmental conditions. Due to its obsolete status, alternative components with similar pinouts and electrical specifications must be evaluated for long-term production viability.

Part Context

Part of the LB11923 series from onsemi, utilizing Treo platform BCD technology. This series targets low-voltage fan motor control in consumer and industrial electronics. The device simplifies BLDC control by integrating necessary pre-driver stages, reducing external component count compared to discrete solutions.

Replacement Considerations

Official substitutes are not explicitly listed in the provided documentation. Evaluate other onsemi BLDC drivers with compatible voltage ranges and package types. Cross-reference pinouts carefully when selecting third-party alternatives to ensure functional compatibility.