1. Introduction
AH402H Hall-Effect bipolar sensor, employed with high voltage bipolar technology, has been designed purposely for automotive and industrial applications, and operates with supply voltages from 3.0 V to 60 V in temperature range from -40 °C up to 150 °C. AH402H is available in SMD-package SOT23 and in the leaded version TO92UA.
2. Features
– Operates from 3.0V to 60 V supply voltage
– Overvoltage protection capability up to 80 V – Highest ESD performance up to ±4 kV
– Short-circuit protected open-drain output
– Wide temperature range from -40 °C to 150 °C – Reverse-voltage protection at VSUP pin
– Ideal sensor for applications in extreme automotive and industrial environments – Tiny SOT23 (-SU) package and TO92 (-UA )package
3. Potential Applications
– Brushless DC motor commutation – Speed measurement
– Revolution counting
– Angular position detection – Proximity detection
4. Block Diagram
The circuit includes temperature compensated voltage regular, Hall plate, signal amplifier and Schmitt-Trigger in single silicon chip. The regulated voltage provides the reference voltage for the hall plate. A magnetic field perpendicular to the sensor surface generates a hall voltage, which is amplified and then sent to a Schmitt trigger. A protection diode against reverse power supply is integrated.
5. Pin Description
TO92S SOT23
6. Ordering information
|
Partnumber |
package |
Packing |
Ambient, TA |
|
AH402HUA |
TO92S |
Bulk, 1000 pieces/bag |
-40℃ to 150℃ |
|
AH402HSU |
SOT23 |
Reel, 3000pieces/reel |
-40℃ to 150℃ |
|
SOT23-3LPin number |
TO92SPin number |
Name |
Function |
|
1 |
1 |
VSUP |
Power supply |
|
2 |
2 |
GND |
Ground |
|
3 |
3 |
VOUT |
Open collector output with a pull-up resistor |
8. Absolute Maximum Ratings
|
Parameters |
Symbol |
Min |
Max |
Units |
|
Power supply Voltage |
VSUP |
-60 |
80 |
V |
|
Output voltage |
VOUT |
-0.5 |
80 |
V |
|
Output current sink |
Isink |
0 |
40 |
mA |
|
Operating ambient temperature |
Ta |
-40 |
150 |
˚C |
|
Storage temperature |
Tstg |
-50 |
165 |
˚C |
|
Symbol |
Parameter |
Test conditions |
Min. |
Typ. |
Max. |
Units |
|
Electrical characteristics |
||||||
|
VSUP |
Supply voltage |
|
3.0 |
|
60 |
V |
|
ISUP |
Supply current |
|
|
4.8 |
8 |
mA |
|
Ile |
Leakage current |
Off state |
|
|
10 |
uA |
|
Vsat |
Output saturation
voltage |
On state |
|
|
0.4 |
V |
|
Tr |
Output rise time |
Rload=1kohms
Cload=20pF |
|
|
1 |
uS |
|
Tf |
Output fall time |
Rload=1kohms
Cload=20pF |
|
|
1.5 |
uS |
|
Magnetic characteristics |
||||||
|
Bop |
Operate point |
Rload=1kohms
Cload=20pF |
10 |
25 |
40 |
Gauss |
|
Brp |
Release point |
|
-40 |
-25 |
-10 |
Gauss |
|
Bhys |
Hysteresis |
|
|
50 |
|
Gauss |
10. Temperature characteristic
AH402H At Vcc=5V,Magnetic characteristics vs.Temperature
