GH1881 Dual Latching Hall Effect Position Sensor
The GH1881 is a magnetic sensor integrated circuit designed using CMOS process technology. It comprises a voltage regulator, a Hall sensor with a dynamic offset compensation system, a small signal amplifier, a Schmitt trigger, and a drain open output driver. This sensor converts magnetic induction intensity into a switch-type digital voltage signal, suitable for operation with rectangular or cylindrical magnets. The output is high in the absence of a magnetic field and switches to low when the magnetic field strength exceeds the operating point (BOP). The output remains low until the magnetic field strength drops below the release point (BRP), at which point it returns to a high state.
Product Attributes
- Brand: GOCHIP ELECTRONICS TECHNOLOGY (Shanghai) CO., LTD.
- Origin: China
- Product Model: GH1881
- Series: UA (SIP-3L/TO-92S)
- Technology: CMOS
Technical Specifications
| Model | Package Type | Operating Voltage Range | Operating Temperature Range | Output Type | Max Output Current | Ordering Information |
| GH1881KUA | SIP-3L/TO-92S | 2.8~24V | -40~125 | Drain Open | 25mA | 1000 pcs/bag |
| GH1881KSW | SOT23-3L | 2.8~24V | -40~125 | Drain Open | 25mA | 3000 pcs/reel |
| GH1881KSE | Small SOT23 | 2.8~24V | -40~125 | Drain Open | 25mA | 3000 pcs/reel |
| Parameter | Symbol | Test Conditions | Min | Typical | Max | Unit |
| Supply Voltage | VDD | Normal Operation | 2.8 | 12 | 24 | V |
| Quiescent Current | IDD | 2.0 | 5.0 | mA | ||
| Output Low Voltage | VOUTL | IOUTL=20mA, B>BOP | 200 | 500 | mV | |
| Output High Leakage Current | IOFF | VOUT=24V, B<BRP | 0.1 | A | ||
| Output Rise Time | tr | RL=820, CL=20pF | 0.5 | S | ||
| Output Fall Time | tf | RL=820, CL=20pF | 0.5 | S | ||
| Maximum Switching Frequency | FSW | 10 | KHz |
| Model | Magnetic Type | Parameter | Symbol | Min | Typical | Max | Unit |
| GH1881LUA/GH1881LSE | Bipolar Latching | Operating Point | BOP | 25 | 40 | 50 | Gauss, Gs |
| Release Point | BRP | -30 | -20 | -10 | Gauss, Gs | ||
| Hysteresis | BHYS | 10 | 20 | 30 | Gauss, Gs | ||
| GH1881LSW | Bipolar Latching | Operating Point | BOP | 25 | 40 | 50 | Gauss, Gs |
| Release Point | BRP | -30 | -20 | -10 | Gauss, Gs | ||
| Hysteresis | BHYS | 10 | 20 | 30 | Gauss, Gs |
Product Applications
- DC Brushless Motors
- Non-contact Switches
- Position Control
- Safety Alarm Devices
- Isolation Detection
- Speed Detection
Contact Information
Marketing Service Center:
Room 506, Building 9, Huashang Times Square, No. 3599 Qixin Road, Minhang District, Shanghai, China
Tel: +86-21-34140399
Fax: +86-21-64515171
Product and Technical Support:
Room 202, MCC Block B, Maojiaqiao Road North, Xidoumen Road, Xihu District, Hangzhou, China
Tel: +86-571-88820269
Fax: +86-571-88820239
E-mail: sales@golden-chip.com.cn
Website: http://www.golden-chip.com/
1811061518_GoChip-Elec-Tech--Shanghai-GH1881_C266238.pdf
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