CH411/N

DESCRIPTION

The CH411/CH411N family is a Hall-effect latch designed in bipolar technology. The Hall IC 

internally includes an on-chip Hall voltage generator, a voltage regulator for operation with supply 

voltages of 3.5 to 30V, reverse protection diode, temperature compensation circuitry, small-signal 

amplifier, Schmitt trigger and an output driver; all in a single package. 

It is designed to respond to alternating North and South poles. While the magnetic flux density(B) is 

larger than operate point (Bop), the output will be turned on (Low), the output is held until the 

magnetic flux density(B) is lower than release point (Brp), then be turned off (High).

 Thanks to its wide operating voltage range 3.5 to 30V and extended temperature range from -40℃

to +150℃, it is quite suitable for use in automotive, industrial and consumer applications.

 The device is delivered in variety of packages to customers: SOT-23, SOT-89 for surface mount 

and TO-92S flat for through-hole mount. Both 3-lead packages are RoHS compliant. 

APPLICATIONS

- Brushless DC motor 

commutation

- Automotive, Consumer and 

Industrial

- Solid-state switch

- Speed measurement

- Revolution counting

- Angular position detection

- Magnetic Encoder

FEATURES

• Bipolar technology

• Reverse battery protection

• 3.5V to 30V Operation voltage

• -40 oC to 150 oC Superior temperature operation

• Open-collector 20 mA output

• Small Size SOT-23, SOT-89 or TO-92S

• Solid-state reliability

• Resistant to physical stress

• Activate with small, commercially available

permanent magnets