BU6909AGFT-TL

$1.31

Description：IC MOTOR DRIVER 1.8V-5.5V TSSOF6
Series：-
Mfr：Rohm Semiconductor
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:1a5920642c38 Category: Motor Drivers, Controllers Brand: Rohm Semiconductor

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Product introduction

Product Detailed Parameters

Description：IC MOTOR DRIVER 1.8V-5.5V TSSOF6
Series：-
Mfr：Rohm Semiconductor
Package：Tape & Reel (TR),Cut Tape (CT)
Motor Type - Stepper：-
Motor Type - AC, DC：Brushless DC (BLDC)
Function：Driver - Fully Integrated, Control and Power Stage
Output Configuration：Half Bridge (2)
Interface：PWM
Technology：Power MOSFET
Step Resolution：-
Applications：Fan Motor Driver
Current - Output：800mA
Voltage - Supply：1.8V ~ 5.5V
Voltage - Load：1.8V ~ 5.5V
Operating Temperature：-40°C ~ 125°C (TJ)
Mounting Type：Surface Mount
Package / Case：6-SMD, Flat Leads
Supplier Device Package：6-TSSOF
Grade：-
Qualification：-

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BU6909AGFT-TL

Overview

The BU6909AGFT-TL is a single-phase brushless DC motor driver designed for 5V fan applications. It integrates a Hall element and operates within a power supply voltage range of 1.8 V to 5.5 V. The device delivers an output current of up to 800 mA with a typical operating supply current of 2 mA. It supports drive frequencies between 5 kHz and 50 kHz, featuring a low output voltage of 160 mV and power dissipation of 540 mW. Operating temperatures span from -40 °C to +85 °C in a compact TSSOF-6 surface-mount package.

Feature Summary

Integrates built-in Hall elements for sensor-based commutation
Features Auto Gain Control (AGC) for stable operation
Utilizes PWM soft switching technology for quiet driving
Includes standby mode to reduce battery consumption

Applications

Notebook PC cooling fans
Single-phase BLDC motor control systems
Low-power thermal management modules

Procurement Notes

Verify the specific suffix TL against the official ROHM datasheet to confirm tape-and-reel packaging and quantity specifications. Ensure the ordering part number matches the exact electrical characteristics required for the target application. Cross-reference the manufacturer's latest documentation to confirm active status and compliance with current environmental standards before finalizing procurement.

Selection Notes

Select this component for designs requiring integrated Hall sensing in a minimal footprint. The AGC function simplifies tuning across varying load conditions. Verify that the 800 mA output capability aligns with the motor's peak current requirements. Confirm compatibility with the 1.8 V to 5.5 V supply range and ensure the TSSOF-6 package fits the PCB layout constraints.

Part Context

This part belongs to the BU6909AGFT series of single-phase fan motor drivers. It is categorized under Motor / Motion / Ignition Controllers & Drivers within the PMIC segment. The series is engineered for efficiency and noise reduction in portable electronic cooling solutions.