HALL EFFECT SWITCH
4.5 V to 24 V DC

Product Use

This Solid State Device produced in CMOS technology is especially developed for Automotive use as high speed electronic Hall Effect switch.

In constant ON applications it can carry up to 30 miliAmperes, while in pulsed applications up to 250 milliAmperes may be switched momentarily for less than 2 milliseconds.

All sensors include a temperature-compensated Hall plate, a comparator, and an open-drain output transistor. The comparator compares the actual magnetic flux through the Hall plate (Hall voltage) with the fixed reference values (switching points). Accordingly, the output transistor is switched on or off.

Millions of these devices have been reliably used since December 1999 in following applications:

Cam Position Sensor
Gear Speed Sensor
RPM Sensor
Limit Switches in:
- Power Windows
- Power Seats

Features

Normally ON (N/O) = Ground on Pin 3
South Pole on Red marked side = OFF = Vcc on Pin 3
Absence of magnetic field or North Pole on Red maked side = ON = Ground on Pin 3
−0 to +100 °C operating temperature
TO-92 Package
Output Current − Continuous 30mA (Sink to Ground)
TO-92UA package
Overvoltage protection
Reverse-voltage protection at Vcc Pin 1
Short-circuit protected open-drain output by thermal shut down
Operates with static magnetic fields and dynamic magnetic fields up to 20 kHz
Stable switching points over a wide supply voltage range

Product Specifications

Power source voltage (max)	V_DS	24	V
Power source voltage (min)	V_DS(on)	4.5	V
Continuous Output current TC = 25 °C	I_D	30	mA
Continuous Output current TC = 100 °C	I_D	16	mA
Pulsed Output current TC = 25 °C	I_D	250	mA
Pulse Duration TC = 25 °C	Pt	>2	ms
Switching Frequency (min)	f	0	Hz
Switching Frequency (max)	f	20	kHz

Typical Circuit

Hall Effect Switch Circuit Diagram

Pricing

US $4.50 each