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BD5310xG-CZ types are momentary (dubbed ‘unipolar’): turning on above a fixed south pole magnetic flux density and turning off below the same threshold (with a small amount of hysteresis)
BD5410xG-CZ types are latching: turning on above a fixed south pole flux density, then remaining on until an equal north pole flux density is applied.
Fixed thresholds range from 2 to 28mT (see table below).
“Unipolar detection can be used for detecting position in applications such as door open-close and door locks, whereas latch detection is ideal for rotation detection in various motors used in power windows and sliding doors,” said Rohm.
Operation is over 2.7V to 38V and they withstand 42V, allowing them to be connected directly to a primary 12V battery supply. Consumption is 1.9mA.
Signals of up to 10kHz can be detected and the output is n-channel open-drain.
Protections include: over-current, thermal shut-down, reverse connection and under-voltage lock-out.
Made in SOT23-3 packaging, they will operate across -40 to +150°C and they comply with Grade 1 AEC-Q100 automotive reliability requirements.
| Part | Available | Detection | Operate | |
|---|---|---|---|---|
| S pole | N pole | |||
| BD53103G-CZ | yes | Momentary | 3.5mT | – |
| BD53104G-CZ | not yet | 7.5 | ||
| BD53105G-CZ | not yet | 10.0 | ||
| BD53106G-CZ | not yet | 12.5 | ||
| BD53107G-CZ | not yet | 18.0 | ||
| BD53108G-CZ | yes | 28.0 | ||
| BD54102G-CZ | yes | Latching | 2.0 | -2.0 |
| BD54103G-CZ | not yet | 5.0 | -5.0 | |
| BD54104G-CZ | not yet | 7.5 | -7.5 | |
| BD54105G-CZ | not yet | 10.0 | -10.0 | |
| BD54107G-CZ | not yet | 15.0 | -15.0 | |
Find the data sheets here:
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