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 |
