Introduction
AH468 is designed and produced using CMOS technology. It is a bipolar Hall switch chip with low power consumption and high sensitivity. The device integrates a voltage regulator, a Hall voltage generator, a small signal amplifier, a chopper regulator, and schmitt-trigger and push-pull output. The sensor has the characteristics of good temperature stability, strong stress resistance and high sensitivity, and its operating voltage is 2.7-5.5V.
AH468 provides TO-92S in-line package and SOT23-3L package. Both packages meet ROHS
environmental protection standards.
Features
Micro-power battery-powered applications
Highest ESD performance up to ±6kV
Omnipolar output switch
Push-pull output
Operating voltage 2.7-5.5V
Application
Solid state switch
Cordless mobile phone reminder switch
Flip phone screen saver switch
Proximity switch
Magnetic sensor switch with low duty cycle instead of reed
Level gauge
Package
Ordering Information
|
Partnumber |
package |
Packing |
Ambient, TA |
|
AH468UA |
TO92S |
Bulk, 1000 pieces/bag |
-40℃ to 85℃ |
|
AH468SU |
SOT23-3L |
Reel, 3000pieces/reel |
-40℃ to 85℃ |
The limit parameter is the limit value when the chip is applied. Exceeding the limit value may damage the chip. Although the function of the chip is not necessarily damaged when the limit parameter is exceeded, if the limit value is exceeded within a certain period of time, the reliability of the chip may be affected.
|
Parameter |
Symbol |
Value |
Units |
|
Supply voltage |
VDD |
6.0 |
V |
|
Reverse voltage |
VDD |
-0.3 |
V |
|
Output Sink Current |
Isink |
5 |
mA |
|
Output Voltage |
Vout |
6.0 |
V |
|
Operating temperature range |
Ta |
-40~85 |
℃ |
|
Storage temperature range |
Ts |
-50~150 |
℃ |
Electrical and magnetic characteristics（Ta =25˚C，VDD = 2.7V）
|
Parameter |
Symbol |
Test Conditions |
Min |
Typ |
Max |
Units |
|
Electrical characteristics |
||||||
|
Operating voltage |
VDD |
|
2.7 |
|
5.5 |
V |
|
Output low voltage |
VOL |
Iout=1mA |
|
|
0.2 |
V |
|
Supply current |
IDD |
|
|
0.8 |
1.5 |
mA |
|
Wake-up mode time |
Tawake |
working |
|
50 |
80 |
us |
|
Sleep mode time |
Tperiod |
working |
|
150 |
240 |
us |
|
working frequ ency |
|
|
|
5 |
|
KHz |
|
response fre |
|
|
|
2.5 |
|
KHz |
|
quency |
|
|
|
|
|
|
|
Magnetic characteristics |
||||||
|
Operate point |
Bop |
B>BopS （B<BopN）， Vout On |
|
25 |
|
Gauss |
|
Release point |
Brp |
B<BopS （B>opN），Vout Off |
|
-25 |
|
Gauss |
|
Hysteresis |
Bhys |
|Bop-Brp| |
|
50 |
|
Gaus |
Function diagram
Pin Description
TO92S SOT32
