AH288 datasheet(4/9 Pages) DIODES

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AH288

HIGH VOLTAGE HALL-EFFECT SMART FAN MOTOR

CONTROLLER

AH288 Rev. 12

4 of 9

APRIL 2010

DS31040

www.diodes.com

Absolute Maximum Ratings

(TA = 25

°C)

Symbol

Parameter

Rating

Unit

Vdd

Supply Voltage

Output Current

IO(AVE)

400

IO(PEAK)

700

Power Dissipation

800

TST

Storage Temperature

-55 ~ 150

°C

Maximum Junction Temperature

150

°C

Thermal Resistance Junction-to-Case (Note 5)

156

°C/W

Notes:

JA should be confirmed with what heat sink thermal resistance. If no heat sink contacting, θJA is almost the same as θJC..

Recommended Operating Conditions

Symbol

Characteristic

Conditions

Min

Max

Unit

Vdd

Supply Voltage (Note 6)

Operating

3.8

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.

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