Product Overview
The GH1200 Series is a unipolar Hall effect position sensor designed with CMOS technology. It integrates a voltage regulator, a Hall sensor with dynamic offset compensation, a small signal amplifier, a Schmitt trigger, and an open-drain output driver. This sensor outputs a digital voltage signal suitable for rectangular or cylindrical magnets. When no magnetic field is present, the output is high. When the magnetic field strength exceeds the operating point (BOP), the output switches to low and remains so until the field strength drops below the release point (BRP), at which point the output returns to high. These sensors are ideal for applications requiring contactless switching, position control, and isolation detection.
Product Attributes
- Brand: GOCHIP ELECTRONICS TECHNOLOGY (Shanghai) CO., LTD.
- Origin: China
- Trademarks: GOCHIP ELECTRONICS TECHNOLOGY (Shanghai) CO., LTD. company name and logo are trademarks or registered trademarks in China.
Technical Specifications
| Product Model | Series | Sensor Type | Package | Temperature Range | Operating Voltage Range | Output Type | Max Output Current | Magnetic Field Control |
| GH1210KUA | GH1200 | Unipolar Hall Position Sensor | SIP-3L/TO-92S | -40~125 | 2.8~24V | Open Drain | 50mA | South Pole |
| GH1210KSW | GH1200 | Unipolar Hall Position Sensor | SOT23-3L | -40~125 | 2.8~24V | Open Drain | 50mA | North Pole |
| GH1220KUA | GH1200 | Unipolar Hall Position Sensor | SIP-3L/TO-92S | -40~125 | 2.8~24V | Open Drain | 50mA | South Pole |
| GH1220KSE | GH1200 | Unipolar Hall Position Sensor | Small SOT23 | -40~125 | 2.8~24V | Open Drain | 50mA | South Pole |
| GH1220KSW | GH1200 | Unipolar Hall Position Sensor | SOT23-3L | -40~125 | 2.8~24V | Open Drain | 50mA | South Pole |
| GH1230KUA | GH1200 | Unipolar Hall Position Sensor | SIP-3L/TO-92S | -40~125 | 2.8~24V | Open Drain | 50mA | South Pole |
| GH1230KSW | GH1200 | Unipolar Hall Position Sensor | SOT23-3L | -40~125 | 2.8~24V | Open Drain | 50mA | North Pole |
Electrical Characteristics (Typical Values at VDD=12V, TA=25)
| Parameter | Symbol | Test Condition | Min | Typ | Max | Unit |
| Operating Voltage | VDD | Normal Operation | 2.8 | 12 | 24 | V |
| Static Operating Current | IDD | | 2.0 | 5.0 | | mA |
| Output Low Voltage | VOUTL | IOUT=20mA, B>BOP | | 200 | 500 | mV |
| Output High Leakage Current | IOFF | VOUT=24V, B<BRP | | | 10 | A |
| Output Rise Time | tr | RL=820, CL=20pF | | 0.1 | 0.5 | S |
| Output Fall Time | tf | RL=820, CL=20pF | | 0.1 | 0.5 | S |
| Switching Frequency | FSW | RL=820, CL=20pF | | 10 | | KHz |
Magnetic Characteristics (Typical Values at VDD=12V, TA=25)
| Model | Magnetic Field Type | Parameter | Symbol | Min | Typ | Max | Unit |
| GH1210KUA | Unipolar Switch, South Pole | Operating Point | BOP | 5 | 15 | 25 | Gauss |
| GH1210KUA | Unipolar Switch, South Pole | Release Point | BRP | 25 | 45 | 65 | Gauss |
| GH1210KUA | Unipolar Switch, South Pole | Hysteresis | BHYS | 10 | 30 | 50 | Gauss |
| GH1210KSW | Unipolar Switch, North Pole | Operating Point | BOP | -65 | -45 | -25 | Gauss |
| GH1210KSW | Unipolar Switch, North Pole | Release Point | BRP | -50 | -30 | -10 | Gauss |
| GH1210KSW | Unipolar Switch, North Pole | Hysteresis | BHYS | | | | Gauss |
| GH1220KUA/GH1220KSE | Unipolar Switch, South Pole | Operating Point | BOP | 10 | 30 | 50 | Gauss |
| GH1220KUA/GH1220KSE | Unipolar Switch, South Pole | Release Point | BRP | 70 | 90 | 110 | Gauss |
| GH1220KUA/GH1220KSE | Unipolar Switch, South Pole | Hysteresis | BHYS | 100 | 120 | 140 | Gauss |
| GH1230KUA | Unipolar Switch, South Pole | Operating Point | BOP | 5 | 10 | 15 | Gauss |
| GH1230KUA | Unipolar Switch, South Pole | Release Point | BRP | 15 | 30 | 45 | Gauss |
| GH1230KUA | Unipolar Switch, South Pole | Hysteresis | BHYS | 10 | 20 | 30 | Gauss |
| GH1230KSW | Unipolar Switch, North Pole | Operating Point | BOP | -45 | -30 | -15 | Gauss |
| GH1230KSW | Unipolar Switch, North Pole | Release Point | BRP | -30 | -20 | -10 | Gauss |
| GH1230KSW | Unipolar Switch, North Pole | Hysteresis | BHYS | | | | Gauss |
Product Applications
- Brushless DC Motors
- Contactless Switches
- Position Control
- Safety Alarm Devices
- Isolation Detection
- Speed Detection
