AH288

HIGH VOLTAGE HALL-EFFECT SMART FAN MOTOR

CONTROLLER

AH288 Rev. 12

4 of 9

APRIL 2010

DS31040

www.diodes.com

Absolute Maximum Ratings

°C)

Symbol

Parameter

Rating

Unit

Vdd

Supply Voltage

30

V

Output Current

400

mA

700

mA

Power Dissipation

800

mW

Storage Temperature

-55 ~ 150

°C

Maximum Junction Temperature

150

°C

θ

JA

Thermal Resistance Junction-to-Case (Note 5)

156

°C/W

Tc

JC

θ

JA

θ

Notes:

5.

θ

Recommended Operating Conditions

Symbol

Characteristic

Conditions

Min

Max

Unit

Vdd

Supply Voltage (Note 6)

Operating

3.8

28

V

Operating Ambient Temperature

Operating

-40

100

°C

Notes:

6. Please watch out the current limit issue when the operation voltage is over 26.4V, because of the different efficiency in the coil.