A1392SEHLT-T Allegro, A1392SEHLT-T Datasheet

A1392SEHLT-T

Manufacturer Part Number

A1392SEHLT-T

Description

Manufacturer

Allegro

Datasheets

1.A1391SEHLT-T.pdf (15 pages)

2.A1391SEHLT-T.pdf (16 pages)

3.A1392SEHLT-T.pdf (15 pages)

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

A1392SEHLT-T

Manufacturer:

ALLEGRO

Quantity:

6 000

Company:

Meier Automation Equipment Co., Limited

Part Number:

A1392SEHLT-T

Manufacturer:

ALLEGRO/雅丽高

Quantity:

20 000

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Features and Benefits

▪ High-impedance output during sleep mode

▪ Compatible with 2.5 to 3.5 V power supplies

▪ 10 mW power consumption in the active mode

▪ Miniature MLP/DFN package

▪ Ratiometric output scales with the ratiometric supply

▪ Temperature-stable quiescent output voltage and

▪ Wide ambient temperature range: –20°C to 85°C

▪ ESD protection greater than 3 kV

▪ Solid-state reliability

▪ Preset sensitivity and offset at final test

Package: 6 pin MLP/DFN (suffix EH)

1391-DS, Rev. 2

reference voltage (VREF pin)

sensitivity

Approximate scale

withTri-State Output and User-Selectable Sleep Mode

SLEEP

VCC

Hall Element

Regulator

Micro Power 3 V Linear Hall Effect Sensors

Functional Block Diagram

To all subcircuits

A1391, A1392, A1393, and A1395

Amp

Gain

Circuit Reference Current

Programming Logic

Description

The A139x family of linear Hall effect sensor integrated circuits

(ICs) provide a voltage output that is directly proportional to

an applied magnetic field. Before amplification, the sensitivity

of typical Hall effect ICs (measured in mV/G) is directly

proportional to the current flowing through the Hall effect

transducer element inside the ICs. In many applications, it

is difficult to achieve sufficient sensitivity levels with a Hall

effect sensor IC without consuming more than 3 mA of current.

The A139x minimize current consumption to less than 25 μA

through the addition of a user-selectable sleep mode. This makes

these devices perfect for battery-operated applications such as:

cellular phones, digital cameras, and portable tools. End users

can control the current consumption of the A139x by applying a

logic level signal to the S ¯ ¯ L ¯ ¯ E ¯ ¯ E ¯ ¯ P ¯ pin. The outputs of the devices

are not valid (high-impedance mode) during sleep mode. The

high-impedance output feature allows the connection of multiple

A139x Hall effect devices to a single A-to-D converter input.

The quiescent output voltage of these devices is 50 % nominal of

the ratiometric supply reference voltage applied to the VREF pin

of the device. The output voltage of the device is not ratiometric

with respect to the SUPPLY pin.

Continued on the next page…

GND

Offset

Out

Ratio

/ 2

VREF

OUT

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