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AM4961 (NRND)

NRND = Not Recommended for New Design

Single Phase 12V BLDC Smart Fan and Motor Driver

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Description

The AM4961 is a full wave driver IC with PWM control function. It is used for single phase motor and is capable of speed control by changing output duty cycle.

Feature(s)

· Built-in Hall Bias Circuit · Built-in PWM Speed Control Circuit · Built-in Minimal Speed Setup Circuit · Rotation Speed Indication (FG) · Rotation or Lock State Indication (RD) · Built-in Thermal Shutdown Circuit · Lock Protection · Output Current Limit

Application(s)

· CPU Cooler Fan in PC · Brushless DC Motor Driver

Specifications & Technical Documents

Product Parameters

Average OutputDrive Current (mA) -
Frequency Generator (FG) and Rotation Detect FG and RD
Hall Bias Voltage (V) 1.25
Lock Detect, Shut-Down and Auto Start Yes
Minimum Speed Setting Yes
Operating Ambient Temperature (°C) -30 to 90
Operating Voltage (V) 3.5 to 16
Other Protection Features Over Current Limit Thermal Shutdown
Peak Output Current (mA) 1000
Reference Voltage Output (V) 6
Speed Control PWM or VDD
Speed Control Slope Adjust -
SupplyCurrent (mA) 8

Related Content

Packages

Technical Documents

Recommended Soldering Techniques

TN1.pdf

Purchase & Availablity

Product Change Notices (PCNs)

A PCN may only apply to specific orderable part numbers in this datasheet. Please refer to the corresponding PCN to see the exact orderable part number(s) affected.

PCN # Issue Date Implementation Date Subject
PCN-2707 2024-12-30 2025-06-30 Product End of Life (EOL)
PCN-2672 2024-03-11 2024-09-07 Device End of Life (EOL)