AH3712

Document number: DS44464 Rev. 2 - 2

4 of 16

www.diodes.com

January 2023

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AH3712

Electrical Characteristics (Notes 7, 8) (@TA = -40°C to +125°C, VDD = 3V to 27V, C

IN = 0.1µF unless otherwise specified.)

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

VOUT_ON

Output On Voltage

IOUT = 20mA, Output on

—

0.25

0.42

V

IOUT_OFF

Output Leakage Current

VOUT = 27V, Output off

—

<0.1

10

µA

IDD

Supply Current

Output off TA = +25C

—

2.8

3.8

mA

Output off TA = -40°C to +125°C

—

2.8

4.8

mA

IDD_R

Reverse Battery Current

(AH3712/AH3712B)

VDD = -18V, TA = -40°C to +125°C

—

0.001

1.2

mA

RPU

Internal Pull-Up Resistance

(AH3172A only)

TA = -40°C to +125°C

10

14

18

kΩ

tST

Device Start-Up Time

VDD >= 3V, B > BOP + 10Gs or B < BRP -

10Gs (Note 7)

—

13

—

µs

fc

Chopping Frequency

VDD >= 3V (Note 8)

—

500

—

kHz

td

The time delay from magnetic threshold

reached to the start of the output rise or

fall

B > 3*BOPMAX, square wave magnetic field

(Note 8)

—

10

—

µs

tr

Output Rising Time

(external pull-up resistor RL and load

capacitance dependent)

RL = 1kΩ, CL = 20pF

—

0.1

1

µs

tf

Output Falling Time

(Internal switch resistance and load

capacitance dependent)

RL = 1kΩ, CL = 20pF

—

0.3

1

µs

IOCL

Output Current Limit

Output on (Note 9 )

30

—

60

mA

VZ

Zener Clamp Voltage

IDD = 8mA, TA = +25°C, Output off

36

—

—

V

Notes:

7. When power is initially turned on, VDD must be within its correct operating range (3.0V to 27V) to guarantee the output sampling. The output state is

valid after the start-up time of 13µs typical from the operating voltage reaching 3V.

The VCC slew rate must exceed 3V/μs from 0 to 3V. A slower slew

rate through the specific range may affect device performance.

8. Typical values are defined at TA = +25C, VDD = 12V. Maximum and minimum values over the operating temperature range is not tested in production but

guaranteed by design, process control and characterization

9. The device limits the output current IOUT to current limit of IOCL.