Bipolar latch Hall Effect sensor ROHM BU52040HFV-TR for wheel keys and trackball magnetic detection
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Delivery Time:
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Product Description
Product Overview
The BU52040HFV is a bipolar latch Hall Effect IC designed for applications such as wheel keys and trackballs. It detects magnetic field polarity switches (N to S or S to N) and maintains its output state until the next polarity change. The output is pulled low for S-pole fields and high for N-pole fields. Its micropower operation, ultra-small package, 1.8V supply voltage support, and high ESD resistance make it ideal for interface applications requiring zero-contact selection dials and rotation detection. Using two ICs enables the detection of rotation direction.
Product Attributes
- Brand: ROHM Co., Ltd.
- Product Series: Hall IC Series Bipolar Latch Hall IC
- Origin: Japan (implied by ROHM Co., Ltd.)
- Material: Not specified
- Color: Not specified
- Certifications: Not specified
Technical Specifications
| Product Name | Supply Voltage (V) | Operation Point (mT) | Hysteresis (mT) | Period (s) | Supply Current (AVG) (A) | Output Type | Package |
|---|---|---|---|---|---|---|---|
| BU52040HFV | 1.653.30 | +/-3.0 | 6.0 | 500 | 200 (VDD=1.8V) / 300 (VDD=2.7V) | CMOS | HVSOF5 |
| Parameter | Symbol | Limit | Unit | Conditions |
|---|---|---|---|---|
| Power Supply Voltage | VDD | 1.65 - 3.30 | V | Ta=25C |
| Operation point | Bop | 1.0 - 5.0 | mT | VDD=1.80V, Ta=25C |
| Release Point | Brp | -5.0 - -1.0 | mT | VDD=1.80V, Ta=25C |
| Hysteresis | Bbys | - 6.0 - | mT | VDD=1.80V, Ta=25C |
| Period | Tp | - 500 - 1200 | s | VDD=1.80V, Ta=25C |
| Output High Voltage | VOH | VDD - 0.2 | - | IOUT =-0.5mA, B |
| Output Low Voltage | VOL | - 0.2 | V | IOUT =+0.5mA, Bop |
| Supply Current (AVG) | IDD1(AVG) | - 200 - 300 | A | VDD =1.8V, During Startup Time |
| Supply Current (Startup) | IDD1(EN) | - 3.0 - | mA | VDD =1.8V, During Startup Time |
| Supply Current (Standby) | IDD1(DIS) | - 2.0 - | A | VDD =1.8V, During Standby Time |
| Supply Current (AVG) | IDD2(AVG) | - 300 - 450 | A | VDD=2.7V, During Startup Time |
| Supply Current (Startup) | IDD2(EN) | - 4.5 - | mA | VDD=2.7V, During Startup Time |
| Supply Current (Standby) | IDD2(DIS) | - 3.5 - | A | VDD=2.7V, During Standby Time |
| Parameter | Symbol | Limit | Unit | Conditions |
|---|---|---|---|---|
| Power Supply Voltage | VDD | -0.14.5 | V | 1. Not to exceed Pd |
| Output Current | IOUT | 0.5 | mA | |
| Power dissipation | Pd | 536 | mW | 2. Reduced by 5.36mW for each increase in Ta of 1 over 25(mounted on 70mm70 mm1.6mm Glass-epoxy PCB) |
| Operating Temperature Range | Topr | -40+85 | C | |
| Storage Temperature Range | Tstg | -40+125 | C |
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