S-57A1 A Series
FOR AUTOMOTIVE 125°C OPERATION HIGH-WITHSTAND VOLTAGE
HIGH-SPEED UNIPOLAR DETECTION TYPE HALL IC
© SII Semiconductor Corporation, 2013-2015
The S-57A1 A Series, developed by CMOS technology, is a high-accuracy Hall IC that operates with high temperature and
The output voltage changes when the S-57A1 A Series detects the intensity level of magnetic flux density. Using the S-57A1
A Series with a magnet makes it possible to detect the open / close and rotation status in various devices.
The S-57A1 A Series includes a reverse voltage protection circuit and an output current limit circuit.
High-density mounting is possible by using the small SOT-23-3 package.
Due to its high-accuracy magnetic characteristics, the S-57A1 A Series can make operation's dispersion in the system
combined with magnet smaller.
Caution This product can be used in vehicle equipment and in-vehicle equipment. Before using the product in the
purpose, contact to SII Semiconductor Corporation is indispensable.
• Pole detection*1:
• Detection logic for magnetism*1:
• Output form*1:
• Magnetic sensitivity*1:
• Operating cycle:
• Power supply voltage range:
• Built-in regulator
• Built-in reverse voltage protection circuit
• Built-in output current limit circuit
• Operation temperature range:
• Lead-free (Sn 100%), halogen-free
• AEC-Q100 in process*2
*1. The option can be selected.
*2. Contact our sales office for details.
Detection of S pole, detection of N pole
Active "L", active "H"
Nch open-drain output, Nch driver + built-in pull-up resistor
BOP = 3.0 mT typ., BOP = 6.0 mT typ.
tCYCLE = 16.0 μs typ.
VDD = 3.5 V to 26.0 V
Ta = −40°C to +125°C
• Automobile equipment
• Home appliance
• DC brushless motor
• Housing equipment
• Industrial equipment