General Description
ST801U Hall-effect switch integrated circuits for high temperature operating based on Hall-effect principle, apply the semiconductor monolithic technology, which includes a voltage regulator, Hall voltage generator, differential amplifier, Schmitt trigger and an open-collector output on a single silicon chip. ICs can convert the input magnetic field signal into dial voltage output.
FeaturesSmall size
High Sensitivity
Quick Response
Good Temperature Performance
High Accuracy ;
Excellent Reliability
Tical applications
Non-contact Switch
Automotive Ignition
Brake ICs
Position control
Revolution detection
Safe alarm device
Textile control system
Absolute Maximum Rating
Supply Voltage VCC·························· 30V
Output Current IO·································50mA
Operating Temperature Range TA·····························-40～150℃,
Storage Temperature Range TS ··························-65～150℃
Electrical Characteristics TA=25℃
Parameter | Test Condition | Symbol | Value | Unit | ||
Min | T | Max |
| |||
Supply Voltage | Vcc=4.5V ～ 24V | Vcc | 3.8 | - | 30 | V |
Output Low Voltage | Vcc=4.5v, Vo=24V Io=20mA,B ≥ BOP | VOL | - | 175 | 400 | mV |
Output Leakage Current | Vo=24V, B<BRP | IOH | - | <1.0 | 10 | µ A |
Supply Current | Vcc=24V Vo open-collector output | Icc | - | 6 | 10 | mA |
Output Rise time | Vcc=12VR L =820 Ω CL =20pF | tr | - | 0.2 | 1.5 | µ S |
Output Fall time | tf | - | 0.18 | 1.5 | µ S | |
Frequency |
| F |
| 100 |
| KHz |
Magnetic Characteristics (Unit: mT)
Parameter | symbol | Value | Unit | ||
Min | T | Max | |||
Operate Point | BOP | 6 | 12 | 16 | mT |
Release Point | BRP | 2 | 7 | 11 | mT |
Hysteresis | Bhys |
| 5 |
| mT |
