ATS278

Two Phase Hall Effect Latch With FG Output

Anachip Corp.

www.anachip.com.tw

Rev. 1.0 Oct 4, 2005

3/6

Absolute Maximum Ratings

Characteristics

Symbol

Values

Unit

Supply voltage

20

V

-20

V

Magnetic flux density

B

Unlimited

Continuous

0.4

Hold

0.5

Output “on” current

Peak (Start Up)

Ic

0.7

A

Sink current of FG

40

mA

Operating temperature range

Ta

-20~+85

°C

Storage temperature range

Ts

-65~+150

°C

Package Power Dissipation

PD

550

mW

Characteristic

Symbol

Conditions

Min

Typ

Max

Unit

Supply Voltage

VCC

3.5

----

20

V

Output Saturation Voltage

Vce(sat)

Vcc=14V, IL=300mA

----

300

800

mV

Output Zener Breakdown

Vz*

46

V

Output Leakage Current

Icex

Vce=14V, Vcc=14V

----

<0.1

10

µA

Supply Current

Icc

Vcc=20V, Output Open

----

16

25

mA

Output Rise Time

tr

Vcc=14V, RL=820

Ω,

CL=20pF (Test Circuit)

----

3.0

10

µs

Output Falling Time

tf

Vcc=14V, RL=820

Ω,

CL=20pF (Test Circuit)

----

0.3

1.5

µs

Switch Time Differential

∆t

Vcc=14V, RL=820

Ω,

CL=20pF (Test Circuit)

----

3.0

10

µs

FG saturation voltage

Vcc=14V, IL=20 mA

----

200

700

mV

*Note: The Vz may vary with the inductance/resistance of DC Fan. In order to reduce the risk of dynamic operation, the capacitor/

resistor is recommended to add below the DO/DOB as Application Circuit (on page 1).

14V

DO

DOB

pf

20

C

C

Ω

820

R

R

L2

L1

L2

L1

=

=

=

=

278

1

5

4

3

2

L1

R

L2

R

L1

C

L2

C

( Test circuit )