DRV10964 5-V, Three-Phase Sinusoidal Sensorless BLDC Motor Driver

1 Features

Proprietary Sensorless Windowless
180° Sinusoidal Control Scheme
Input Voltage Range 2.1 to 5.5 V
500-mA Output Current
Low Quiescent Current 15 µA (Typical) at Sleep Mode
Total Driver H+L Rdson Less than 1.5 Ω
Current Limit and Short-Circuit Current Protection
Lock Detection
Anti Voltage Surge (AVS)
UVLO
Thermal Shutdown

2 Applications

Notebook CPU Fans
Game Station CPU Fans
ASIC Cooling Fans

3 Description

The DRV10964 is a three-phase sensorless motor driver with integrated power MOSFETs. It is specifically designed for high-efficiency, low-noise and low-external component count motor drive applications. The proprietary sensorless windowless 180° sinusoidal control scheme offers ultra-quiet motor drive performance. The DRV10964 contains an intelligent lock detect function, combined with other internal protection circuits to ensure safe operation. The DRV10964 is available in a thermally efficient 10-pin USON package with an exposed thermal pad.

Device Information ⁽¹⁾

PART NUMBER	PACKAGE	BODY SIZE (NOM)
DRV10964	USON (10)	3.00 mm × 3.00 mm

For all available packages, see the orderable addendum at the end of the data sheet.

Simplified Schematic

4 Revision History

DATE	REVISION	NOTES
February 2016	*	Initial release.

5 Pin Configuration and Functions

DSN Package

10-Pin USON

Top View

Pin Functions

PIN		I/O	DESCRIPTION
NO.	NAME	I/O	DESCRIPTION
1	FG	Output	Motor speed indicator output (open drain).
2	FGS	Input	Motor speed indicator selector. The state of this pin is latched on power up and can not be changed dynamically.
3	VCC	Power	Input voltage for motor and chip supply.
4	W	IO	Motor Phase W
5	GND	Ground	Ground
6	V	IO	Motor Phase V
7	U	IO	Motor Phase U
8	FR	Input	Motor direction selector. This pin can be dynamically changed after power up.
9	CONFIG	Input	Resistor setting for configuring the handoff threshold. The state of this pin is latched on power up and can not be changed dynamically.
10	PWM	Input	Motor speed control input.
—	Thermal Pad	—	Connect to Ground for maximum thermal efficiency. Thermal pad is on the bottom of the package.