AH266

HIGH VOLTAGE HALL EFFECT LATCH

AH266 Rev. 4

3 of 8

MARCH 2009

www.diodes.com

Typical Application Circuit

12

4

3

266

Coil 1

Coil 2

Brush-Less DC Fan

Absolute Maximum Ratings

Symbol

Parameter

Rating

Unit

Supply Voltage

28

V

Output “OFF ” Voltage

28

V

Output “ON” Current

400 (Note 5)

mA

500

mA

700

mA

B

Magnetic Flux Density

Unlimited

Gauss

Storage Temperature Range

-65 ~ +150

°C

Power Dissipation (Note 6)

550

mW

θ

JC

Thermal Resistance Junction-to-Case

227

°C/W

Recommended Operating Conditions

Symbol

Characteristic

Conditions

Min

Max

Unit

Supply Voltage

Operating

4

28

V

Operating Ambient Temperature (Note 7)

Operating

-20

85

°C

Notes:

4. This application circuit can’t protect reverse coil current if power is connecting reverse.

6. See Performance Characteristics for other conditions.