Product Overview
The GH1817/GTS1817 are self-adaptive Hall-effect gear sensors designed for automotive camshaft sensing and other speed sensing applications. The GH1817 requires an external magnet for detecting the motion of ferromagnetic gears, while the GTS1817 is an integrated chip and magnet module. These sensors offer easy installation due to their small package size and are compatible with various gear shapes and sizes. They feature short-circuit protection and an open-drain output compatible with logic circuits. The sensors incorporate a 10-bit A/D converter for data sampling and holding, and a separate 4-bit A/D converter for stable magnetic switch point hysteresis. Utilizing a single Hall sensor without chopper stabilization, they eliminate the need for precise alignment between the device and the gear. Operating on the Hall effect principle, these unipolar Hall switches can detect zero speed as their operating and release points adapt to the back-magnet strength.
Product Attributes
- Brand: (GOCHIP)
- Origin: China
- Material: High-temperature resistant resin (enclosure)
Technical Specifications
| Product Model | Temperature Range | Package Type | Ordering Information | Pin Definition | Limit Parameters | Characteristic Parameters |
| GH1817 | -40~+150 | SIP-3L(TO-92S) | GH1817LUA (Bag: 1000pcs/bag) | 1: VDD, 2: GND, 3: VOUT | VDD: -0.3~+40V VOUT(OFF): 50V IOUT(SINK): 150mA PD: 150mW TA: -40~+150 Tj(max): +165 TSTG: -65~+170 | VDD: 3.5~30V VOUT(SAT): 250~500mV (IOUT=25mA) IOL: 10uA (VOUT=30V) IDD: 1.0~6.0mA tr: 400nS tf: 400nS BW: 15kHz IFAULT: 100mA tFAULT: 125uS BBIAS: -300~+4000Gs BHYS: 15~45Gs |
| GTS1817 | SIP-4L(TO-94)-iBB | GTS1817LVAB (Box: 500pcs/box) | 1: VDD, 2: GND, 3: VOUT, 4: NC |
Product Features
- Operating Voltage Range: 3.5~30V
- Operating Temperature Range: -40~+150
- Output Short Circuit Protection
- Adaptive and adjustable back-bias magnetic field range
- Can detect zero speed
Product Applications
- Camshaft Sensor
- Gear Sensor
- Linear Encoder
- Rotary Encoder
- Speed and Direction Detection
- No need to consider device and gear alignment or rotation direction
2101201833_GoChip-Elec-Tech--Shanghai-GH1817LUA-A_C2683249.pdf
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