AM4963 (NRND)

NRND = Not Recommended for New Design

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Description

The AM4963/AM4963R is a full wave driver IC with direct PWM control function and thermal resistor control function. It is used for single phase motor and is capable of speed control by PWM pulse and thermal resistor at the same time.

Feature(s)

The Motor Speed is Control°C by PWM Pulse Directly and Thermal Resistor at the Same Time

Low Corner Temperature (30°C) Adjustable

High Corner Temperature (38°C) Adjustable

Full Speed when Thermal Resistor Shorten

Built-in Triangle Wave Circuit without Extra Oscillation Capacitor

Built-in Minimal Speed Setup Circuit

Alpha Slope Adjustable

Rotation Speed Indicator (FG)

Rotation/lock State Indicator (RD)

Built-in Temperature Control Circuit

Built-in Thermal Shutdown Circuit

Lock Protection and Auto-restart

Application(s)

CPU Cooler Fan in PC

Brushless DC Motor Driver

Product Specifications

Product Parameters

Average OutputDrive Current (mA)	-
Frequency Generator (FG) and Rotation Detect	FG
Hall Bias Voltage (V)	-
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	Thermal Shutdown
Peak Output Current (mA)	1000
Reference Voltage Output (V)	-
Speed Control	PWM +Temp or VDD and Slope Adjust
Speed Control Slope Adjust	Yes
SupplyCurrent (mA)	8

Technical Documents

Recommended Soldering Techniques

TN1.pdf

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-2672	2024-03-11	2024-09-07	Device End of Life (EOL)