S-57A1-A Datasheet, PDF (1/17 Pages) Seiko Instruments Inc – FOR AUTOMOTIVE OPERATION HIGH-WITHSTAND VOLTAGE HIGH-SPEED UNIPOLAR DETECTION TYPE HALL EFFECT SWITCH IC

S-57A1 A Series
FOR AUTOMOTIVE 125°C OPERATION HIGH-WITHSTAND VOLTAGE
www.sii-ic.com
HIGH-SPEED UNIPOLAR DETECTION TYPE HALL EFFECT SWITCH IC
© SII Semiconductor Corporation, 2013-2017
Rev.1.7_00
This IC, developed by CMOS technology, is a high-accuracy Hall effect switch IC that operates with high temperature and
high-withstand voltage.
The output voltage changes when this IC detects the intensity level of magnetic flux density. Using this IC with a magnet
makes it possible to detect the open / close and rotation status in various devices.
This IC 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, this IC can make operation's dispersion in the system combined with
magnet smaller.
SII Semiconductor Corporation offers a "magnetic simulation service" that provides the ideal combination of magnets and our
Hall effect ICs for customer systems. Our magnetic simulation service will reduce prototype production, development period
and development costs. In addition, it will contribute to optimization of parts to realize high cost performance.
For more information regarding our magnetic simulation service, contact our sales office.
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.
 Features
• Pole detection^*1:
• Output logic^*1:
• Output form^*1:
• Magnetic sensitivity^*1:
• Chopping frequency:
• Output delay time:
• 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 qualified^*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
B_OP = 3.0 mT typ.
B_OP = 6.0 mT typ.
f_C = 250 kHz typ.
t_D = 16.0 μs typ.
V_DD = 3.5 V to 26.0 V
Ta = −40°C to +125°C
 Applications
• Automobile equipment
• Home appliance
• DC brushless motor
• Housing equipment
• Industrial equipment
 Package
• SOT-23-3
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