Bardeen Micro BDH8203 CMOS Hall switch with sleep awake logic and omnipolar high sensitivity sensing
Product Overview
The BDH8203 is a CMOS omnipolar Hall switch designed for high sensitivity and micropower consumption. It features an on-chip Hall voltage generator, voltage regulator (1.65-5.5V), sleep/awake logic, temperature compensation, small-signal amplifier, dynamic offset cancellation, and a Schmitt trigger with an open-drain output. This device is capable of detecting both south and north poles, activating its output when a sufficient magnetic field is present and deactivating it in the absence of a field. Its pole-independent sensing technique enhances manufacturability. Ideal for battery-powered applications, it offers ultra-low power consumption (typically 15W at 3.3V, with an average of 5A in ultra-low power mode) and operates within a temperature range of -40C to 85C. Applications include solid-state switches, awake switches for mobile devices, magnet proximity sensors, and notebook/PAD PC/PDA applications.
Product Attributes
- Brand: Shenzhen Bardeen Microelectronics (BDM)
- Technology: Mixed signal CMOS
- Sensitivity: Omnipolar, High Sensitivity
- Power Consumption: Micropower, Ultra Low Power
- Output Type: Open-drain, Totem-pole
- RF Noise Protection: Strong
- ESD Protection: HBM > +/- 4KV (min)
Technical Specifications
| Parameter | Symbol | Test Conditions | Min. | Typ. | Max. | Unit |
|---|---|---|---|---|---|---|
| Operating voltage | VDD | Operating | 1.65 | 3.3 | 5.5 | V |
| Output High Voltage | VOH | B<BrpS, IOUT =-0.5mA | VDD-0.2 | - | - | V |
| Output Low Voltage | VOL | BopS<B, IOUT =+0.5mA | - | - | 0.2 | V |
| Supply current (Average) | IDD1AVG | VDD=1.8V | - | 1.1 | - | A |
| Supply Current During Startup Time | IDD1EN | VDD=1.8V | - | 0.7 | - | mA |
| Supply Current During Standby Time | IDD1DIS | VDD=1.8V | - | 0.42 | - | A |
| Supply current (Average) | IDD1AVG | VDD=3.0V | - | 2.4 | - | A |
| Supply Current During Startup Time | IDD1EN | VDD=3.0V | - | 1 | - | mA |
| Supply Current During Standby Time | IDD1DIS | VDD=3.0V | - | 1.4 | - | A |
| Awake mode time | TAW | Operating | - | 25 | - | S |
| Sleep mode time | TSL | Operating | - | 50 | 100 | mS |
| Operating point (South Pole) | BOPS | TA=25 | 20 | 35 | 50 | Gs |
| Operating point (South Pole) | BOPS | TA=-40 to 85 | - | 37 | - | Gs |
| Operating point (North Pole) | BOPN | TA=25 | -20 | -35 | -50 | Gs |
| Operating point (North Pole) | BOPN | TA=-40 to 85 | - | -37 | - | Gs |
| Release point (South Pole) | BRPS | TA=25 | 8 | 23 | 40 | Gs |
| Release point (South Pole) | BRPS | TA=-40 to 85 | - | 25 | - | Gs |
| Release point (North Pole) | BRPN | TA=25 | -8 | -23 | -40 | Gs |
| Release point (North Pole) | BRPN | TA=-40 to 85 | - | -25 | - | Gs |
| Hysteresis | BHYS | TA=25 | - | 12 | - | Gs |
| Hysteresis | BHYS | TA=-40 to 85 | - | 12 | - | Gs |
| Operating Temperature Range | TA | -40 | 85 | C | ||
| Storage Temperature Range | TS | -50 | 150 | C |
Package Information
SOT-23 Package
- Pin 1: VCC (Supply voltage)
- Pin 2: OUT (CMOS Output)
- Pin 3: GND (Ground)
TO-92S Package
- Pin 1: VCC (Supply voltage)
- Pin 2: GND (Ground)
- Pin 3: OUT (CMOS Output)
Absolute Maximum Ratings
| Parameter | Symbol | Value | Unit |
|---|---|---|---|
| Supply Voltage (operating) | VDD | 6 | V |
| Supply Current | IDD | 1 | mA |
| Output Voltage | VOUT | 6 | V |
| Output Current | IOUT | 1 | mA |
| Operating Temperature Range | TA | -40 to 85 | C |
| Storage Temperature Range | TS | -50 to 150 | C |
| ESD Sensitivity | - 4000 | V |
Note: Exceeding the absolute maximum ratings may cause permanent damage. Exposure to absolute-maximum rated conditions for extended periods may affect device reliability.
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