MP6505

4.5V-to-16V,400mA, Single-Phase

Brushless-DC–Motor Driver

MP6505 Rev.1.0

www.MonolithicPower.com

1

3/14/2012

MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.

© 2012 MPS. All Rights Reserved.

The Future of Analog IC Technology

DESCRIPTION

The MP6505 is a single-phase brushless-DC–

motor driver, with an input voltage range of 4.5V

to 16V and a maximum output current of 400mA.

The MP6505 controls the rotational speed

through either the input voltage or the PWM

signal.

Other

features

include

minimum-

rotational–speed set, a rotational speed indicator,

built-in input over-voltage protection, built-in

locked-rotor

protection,

locked-rotor–state

indicator,

thermal

shutdown,

and

a

1.2V

integrated Hall bias voltage.

The MP6505 is available in 5.0mm×6.4mm

TSSOP16 and 3mm×3mm QFN16 package.

FEATURES

 Operating Voltage of 4.5V to 16V

 Integrated Power MOSFETs (HS: 370mΩ; LS:

230mΩ)

 Maximum Output Current 400mA

 Low Quiescent Current (Not including Hall

Sensor) of 1.4mA

 Speed Control by Input Voltage or PWM Signal

 Programmable Minimum Speed

 Rotational-Speed Indicator

 Locked-Rotor Indicator

 Locked-Rotor Protection and Automatic

Recovery

 Thermal Protection and Automatic Recovery

 Built-In Input OVP and Automatic Recovery

 Hall Bias Voltage(1.2V) Integrated

 Available in TSSOP16 (5.0×6.4mm) and QFN16

(3×3mm) Package

APPLICATIONS

 CPU Fan for Personal Computers or Servers

 Brushless DC Motor Driver

All MPS parts are lead-free and adhere to the RoHS directive. For MPS green

status, please visit MPS website under Products, Quality Assurance page.

“MPS” and “The Future of Analog IC Technology” are registered trademarks of

Monolithic Power Systems, Inc.

TYPICAL APPLICATION