HAL4395 Single-Pole Induction Linear Hall Sensor
The HAL4395 is an improved linear Hall-effect sensor circuit that operates based on the magnetic field of a permanent magnet or electromagnet. Its output voltage changes proportionally to the magnetic field strength, with sensitivity directly proportional to the supply voltage. This circuit features a high-impedance signal output, eliminating the need for isolation chips in parallel applications like magnetic keyboards, meeting low sampling requirements. It also boasts low noise output, negating the need for external filtering. At 3.3V, the zero-field output voltage is typically 3.0V, with a sensitivity range of 3-7mV/Gs. Sensitivity can be specified according to customer application requirements. The typical operating voltage is 3.3V, with a maximum withstand voltage of 7V and an operating temperature range of -40 to 125, making it suitable for various civil, commercial, and industrial applications.
Key Features:
- Single-pole induction linear high-impedance output
- Enable control with ultra-low standby power consumption
- Operating voltage range: 2.7~5.5V
- BCD process
- Sensitivity can be specified according to customer product application requirements
Applications:
- Position sensors
- Current sensors
- Magnetic keyboards
- Trigger keys for game controllers, power tools, etc.
Technical Specifications:
| Parameter | Symbol | Test Condition | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Electrical Characteristics | ||||||
| Operating Voltage | Vcc | 2.7 | 3.3 | 5.5 | V | |
| Supply Current (Operating) | Icc | Vcc=3.3V, B=0Gs | 4.0 | mA | ||
| Supply Current (Unenabled) | IccL | Pd=0V | 1.0 | uA | ||
| Output Resistance | Ro | 20 | ||||
| Step Response Time | Tr | CL=0.1nF | 0.5 | uS | ||
| Turn-on Time | Tpo | 1.0 | uS | |||
| Bandwidth | BW | Out~Gnd | 120 | Khz | ||
| Output Load Capacitance | CL | 0.1 | nF | |||
| Pd Logic Low Voltage | VPDL | 0.5 | V | |||
| Pd Logic High Voltage | VPDH | 2.0 | V | |||
| Output Noise | Vn | CL=0.1nF | 1.9 | mVrms | ||
| Power-on to Stable Output | Vcc=3.3V, Out=3.0~0.1V | 5 | uS | |||
| Magnetic Characteristics | ||||||
| Magnetic Field Range | VCC=3.3V | -500 | GS | |||
| Sensitivity | VCC=3.3V | 5.4 | 5.7 | 6.0 | mV/GS | |
| Zero Field Output Voltage | VCC=3.3V, B=0Gs | 2.9 | 3.0 | 3.1 | V | |
| Adjustable Sensitivity Range | VCC=3.3V | 3.0 | 7.0 | mV/GS | ||
| Linearity | 1.5 | GS | ||||
| Sensitivity Drift | B=0Gs, -40~+125 | -0.02 | 0.1 | mV/GS | ||
| Zero Point Drift | B=0Gs, -40~+125 | -0.01 | 0.04 | V | ||
| Limit Parameters | ||||||
| Supply Voltage | VCC | -0.5 | 7 | V | ||
| Output Current | IOUT | -0.5 | 7 | mA | ||
| Junction Temperature Range | TJ | -40 | 165 | |||
| Operating Temperature Range | TA | -40 | 125 | |||
| Storage Temperature Range | TS | -50 | 175 | |||
| ESD Breakdown Voltage | VESD | 4 | KV | |||
2506121200_Hallwee-HAL4395SO5_C49165022.pdf
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