ATS277H

COMPLEMENTARY OUTPUT HALL EFFECT LATCH

ATS277H Rev. 1

3 of 8

DECEMBER 2008

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© Diodes Incorporated

12

4

3

277

Coil 1

Coil 2

Vcc

R1

R2

C1

C2

R1 = R2 = 47O

C1 = C2 = 2.2 uF

The R , C value need to be fine tuned

based on coils design.

Brush-Less DC Fan

Absolute Maximum Ratings

(TA = 25°C)

Symbol

Characteristics

Values

Unit

VCC

Supply Voltage

20

V

VRCC

Reverse VCC Polarity Voltage

-20

V

B

Magnetic Flux Density

Unlimited

Ic

Output “on” Current

Continuous

0.4

A

Hold

0.5

Peak (Start Up)

0.7

TS

Storage Temperature Range

-65~+150

°C

PD

Package Power Dissipation (Note 4)

550

mW

TJ

Maximum Junction Temperature

150

°C

Note:

4. Pd shall be within Safety Operation Area.

Recommended Operating Conditions

Symbol

Parameter

Conditions

Min

Max

Unit

VCC

Supply Voltage (Note 5)

Operating

3.5

20

V

TA

Operating Ambient Temperature

(Note 6)

Operating

-20

85

°C

Notes:

5. The output DO/DOB is switching as magnetic field change (S>300G, N<-300G).

6. Shall not exceed PD and Safety Operation Area.

Typical Application Circuit