Product Overview
The HAL9303R is a small, general-purpose, linear Hall effect sensor. Its output signal level is proportional to the magnetic field strength applied to the device's sensitive face. At zero magnetic field, the output voltage is half the supply voltage. An 'S' pole on the marked face (TO/SW package) causes the output voltage to increase linearly with magnetic field strength, while an 'N' pole causes it to decrease linearly. It features low-noise output, eliminating the need for external filtering, and includes thin-film resistors for improved temperature stability and accuracy. The SO package has opposite sensing polarity to the TO/SW package. The operating temperature range is -40 to 150, suitable for various commercial and industrial environments.
Product Features
- Good stability
- Rail-to-rail output
- Low power consumption (Vcc=1.8V, IDD<1.5mA)
- High sensitivity (Vcc=3.3V, 4.1mV/Gs)
Applications
- Joysticks
- Motion detection
- Magnetic keyboards
- Rotary encoders
Technical Specifications
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions |
| Electrical Characteristics | ||||||
| Power Supply Current | IDD | 1.5 | mA | Vcc=1.8V | ||
| Output Resistance | RO | 10K | ||||
| Operating Voltage | VDD | 1.6 | 3.6 | V | ||
| Noise (BW=10-10KHz) | VNO | 5.0 | mVRMS | |||
| Chop Frequency | FC | 2.4 | KHz | |||
| Bandwidth | BW | 2.0 | KHz | |||
| Turn-on Time | Tpo | 4.0 | uS | dvcc/dt 5v/us | ||
| ESD (HBM) | 4 | KV | ||||
| Limit Parameters | ||||||
| Supply Voltage (Operating) | VDD | 7 | V | |||
| Output Current | IDD | 0.2 | mA | |||
| Operating Temperature Range | TA | -40 | 150 | |||
| Storage Temperature Range | TS | -65 | 150 | |||
| Magnetic Characteristics | ||||||
| Sensitivity | 3.6 | 4.1 | 4.6 | mV/Gs | Vcc=3.3V, Ta=25 | |
| Sensitivity | 1.8 | 2.2 | 2.5 | mV/GS | Vcc=1.8V | |
| Magnetic Field Range | 390 | GS | ||||
| Linearity | 500 | % of full scale | ||||
| Zero Drift | -0.10 | / | ||||
| Zero Sensitivity Temp. Drift | -0.10 | ppm/ | ||||
| Static Output Voltage (B=0Gs) | 1.55 | 1.75 | V | Vcc=3.3V | ||
2411281619_Hallwee-HAL9303RSW_C42387472.pdf
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