HALL EFFECT SWITCH
4.5 V to 24 V DC

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Autotronics: Solid State Devices | Switches | Relays | Indicator Lights | Modules | Sensors | Timers | Circuit Breakers | Terminals | Enclosures | ElectroMechanical | Fuse Blocks | Electrical | Cables | VSP |

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

• No predetermined state
• South Pole on White marked side = OFF = Vcc on Pin 3
• North Pole on White marked side = ON = Ground on Pin 3
• Absence of magnetic field will cause latch in last operating state
• −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

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Product Specifications

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

Typical Circuit

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Pricing

US $5.25 each