LB11850VA-W-AH

$0.55

Description：IC MOTOR CONTROLLER 24SSOP
Series：*
Mfr：onsemi
Package：Tape & Reel (TR)

SKU:fa161d913998 Category: Motor Drivers, Controllers Brand: onsemi

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Product introduction

Product Detailed Parameters

Description：IC MOTOR CONTROLLER 24SSOP
Series：*
Mfr：onsemi
Package：Tape & Reel (TR)
Motor Type - Stepper：-
Motor Type - AC, DC：-
Function：-
Output Configuration：-
Interface：-
Technology：-
Step Resolution：-
Applications：-
Current - Output：-
Voltage - Supply：-
Voltage - Load：-
Operating Temperature：-
Mounting Type：-
Package / Case：-
Supplier Device Package：-
Grade：-

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LB11850VA-W-AH

Overview

The LB11850VA-W-AH is a single-phase bipolar fan motor driver with speed control function that works with a speed feedback signal. It operates within a supply voltage range of 5.5 V to 16 V and draws a working supply current of 15 mA. The device supports an operating temperature range from -30°C to +95°C and has a power dissipation rating of 900 mW. It is housed in an SSOP-24 package suitable for SMD/SMT installation.

Feature Summary

Single-phase full-wave drive utilizing external PMOS-NMOS power transistors for high efficiency and low saturation output
On-chip closed-loop speed control circuit using speed feedback signals to minimize fluctuations under varying load or supply conditions
Integrated soft start, chopper-type current limiter, and reactive current cut circuits for silent operation and protection

Applications

Driving large-scale fan motors in server systems
Fan motor control in consumer products requiring large air volume
Applications demanding quiet and low-consumption motor drive

Procurement Notes

Verify the specific suffix WAH against the manufacturer's official datasheet to confirm pinout and electrical characteristics. Confirm RoHS compliance status through the supplier's documentation. Ensure the SSOP-24 package dimensions match your PCB footprint requirements before finalizing procurement decisions.

Selection Notes

Select this component when designing single-phase bipolar fan motor drivers requiring closed-loop speed accuracy. It is suitable for applications needing variable speed control via PWM or analog voltage inputs. Consider its 900 mW power dissipation limit and thermal management needs for the SSOP-24 package in dense layouts.

Part Context

This part belongs to the LB11850VA series of fan motor controllers and drivers. It is categorized under PMIC - Power Management ICs and Motor / Motion / Ignition Controllers & Drivers. The device is designed to replace open-loop systems with more accurate closed-loop alternatives for fan applications.

Replacement Considerations

Check for direct substitutes within the LB11850VA family. Verify compatibility with existing PCB footprints and control logic levels. Ensure any replacement maintains the same single-phase full-wave drive capability and feedback input requirements.

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.