Note: the data are typical values, the test voltage of supply current is 5.5V, and the ambient temperature is 25 ℃.
| Type | Manufacturing Techniques | Output State | Package | Supply Curent (mA) |
Load (mA) |
Operating Voltage (V) |
BOP (mT) |
BRP (mT) |
BH (mT) |
Operating Temperature (℃) |
AH3131 
|
Bipolar | Open collector | SOT23/SOT89/TO92 | 4 | 25 | 4.5~24 | 3.0 | 1.5 | 1.5 | -40~150 |
|
AH3132
|
Bipolar | Open collector | SOT23/SOT89/TO92 | 1.5 | 25 | 2.5~24 | 4.5 | 2.5 | 2.0 | -40~150 |
|
AH3133
|
Bipolar | Open collector | SOT23/SOT89/TO92 | 4 | 25 | 4.5~24 | 6.0 | 3.0 | 3.0 | -40~150 |
|
AH3134
|
Bipolar | Open collector | SOT23/SOT89/TO92 | 4 | 30 | 4.5~24 | 9.0 | 5.0 | 4.0 | -40~150 |
|
AH3134R
|
Bipolar | Open collector | SOT23/SOT89/TO92 | 4 | 30 | 4.5~24 | 9.0 | 5.0 | 4.0 | -40~150 |
|
Unipolar Hall IC AH3144
|
Bipolar | Open collector | SOT23/SOT89/TO92 | 4 | 30 | 4.5~24 | 15.0 | 10.0 | 5.0 | -40~150 |
|
AH3145
|
Bipolar | Open collector | SOT23/SOT89/TO92 | 4 | 25 | 4.5~24 | 22.0 | 17.0 | 5.0 | -40~150 |
|
AH543
|
Bipolar | Open collector | SOT89 | 4 | 25 | 4.5~24 | 12.0 | 8.0 | 4.0 | -40~150 |
The unipolar Hall-effect sensor includes the following on a single silicon chip: reverse voltage protector, voltage regulator, temperature compensation circuit, Hall-voltage generator, signal amplifier, Schmitt trigger and open-collector output driver, etc. The integrated voltage regulator and temperature compensation circuit ensure that the sensor works stably in a wide voltage and temperature range. The reverse voltage protection circuit prevents the sensor from being damaged by reverse voltage.
Produced with bipolar technology, a unipolar Hall IC is more stable and reliable. It is available in three package types: SOT-23-3L (Type M), SOT-89 (Type S), and TO-92UA (Type UA). Each package is lead (Pb) free, with 100% matte tin plated leadframes.
Take South Pole Active as an Example
When the S pole of the magnet faces the mark surface of the sensor and is close to it (B≥BOP), the sensor outputs a low level; when the S pole is away from the sensor (B≤BRP), it outputs a high level. The sensor does not respond when the N pole faces its mark surface. The stable hysteresis (BH = | BOP - BRP |) ensures that the sensor switch is stable.
Note: the SOT-23-3L package is north pole active, and the SOT89 and TO92UA package are south pole active.
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