TMAG5131-Q1 Automotive Low-Power, High-Precision, Hall Effect Switch

1 Features

• Industry-leading ultra-low power consumption:

– 20 Hz versions: 2 µA at 3 V

• Operating VCC range: 1.65 V to 5.5 V

• High precision magnetic threshold option (typical

BOP):

– 3 mT with 1.5 mT hysteresis

• Omnipolar magnetic response

• Push-pull or Open-drain output options

• Industry-standard SOT-23 (DBZ) package

• Operating temperature range: –40°C to +125°C

2 Applications

• Door handles and E-latches

• Stalk shifter

• Sun visor, vanity mirror, or glove box

• Open, close sensor for LCD screens, lids, or

trunks

• Wiper home or end position sensor

• Brake pedal or rear light actuator

• Sunroof or tailgate

• Rocker switch

• Battery-critical position sensing

3 Description

The TMAG5131-Q1 is an ultra-low-power, low

voltage, high precision, Hall-effect sensor, designed

for the most compact and battery-critical automotive

applications. The device is offered in multiple

magnetic thresholds, sampling rates and output types

to accommodate various applications.

When the applied magnetic flux density exceeds the

operating point (BOP) threshold, the device outputs a

low voltage. The output stays low until the flux density

decreases to less than the release point (BRP), and

then the device outputs a high voltage. Omnipolar

magnetic response allows the output to be sensitive

to both north and south magnetic fields.

The TMAG5131-Q1 is internally power cycled to

operate at a very low current consumption. The 20

Hz versions have current consumption of 2 μA at 3 V.

The TMAG5131-Q1 is available in the industry-

standard package and pin out SOT-23.

The device operates at a VCC range of 1.65 V to 5.5 V

as well as an extended temperature range of –40°C to

125°C.

Package Information(1)(2)

PART NUMBER

PACKAGE

BODY SIZE (NOM)

TMAG5131-Q1

DBZ (SOT-23, 3)

2.92 mm × 1.30 mm

(1)

For all available packages, see the orderable addendum at

the end of the data sheet.

(2)

See the Device Comparison table.

Output

control

LDO

Chopper

stabiliza on

VCC

GND

X

Amp

Low-Power

Oscillator

OUT

Output

control

LDO

Chopper

stabiliza on

VCC

GND

X

Amp

Low-Power

Oscillator

OUT

VCC

R1

VCC

Block Diagram (Push-pull)

Block Diagram (Open-drain)

Block Diagram

TMAG5131-Q1

SLYS050 – APRIL 2023

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. ADVANCE INFORMATION for preproduction products; subject to change

without notice.