S-57A1 A Series FOR AUTOMOTIVE 125C OPERATION HIGH-WITHSTAND VOLTAGE HIGH-SPEED www.ablic.com UNIPOLAR DETECTION TYPE HALL EFFECT SWITCH IC ABLIC Inc., 2013-2019 Rev.1.8 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. ABLIC Inc. offers amagnetic simulation servic 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 ABLIC Inc. is indispensable. Features *1 Pole detection : Detection of S pole Detection of N pole *1 Output logic : Active Active *1 Output form : Nch open-drain output Nch driver + built-in pull-up resistor *1 Magnetic sensitivity : B = 3.0 mT typ. OP B = 6.0 mT typ. OP Chopping frequency: f = 250 kHz typ. C Output delay time: t = 16.0 s typ. D Power supply voltage range: V = 3.5 V to 26.0 V DD Built-in regulator Built-in reverse voltage protection circuit Built-in output current limit circuit Operation temperature range: Ta = 40C to +125C Lead-free (Sn 100%), halogen-free *2 AEC-Q100 qualified *1. The option can be selected. *2. Contact our sales office for details. Applications Automobile equipment Home appliance DC brushless motor Housing equipment Industrial equipment Package SOT-23-3 1 FOR AUTOMOTIVE 125C OPERATION HIGH-WITHSTAND VOLTAGE HIGH-SPEED UNIPOLAR DETECTION TYPE HALL EFFECT SWITCH IC S-57A1 A Series Rev.1.8 00 Block Diagrams 1. Nch open-drain output product Reverse voltage VDD OUT protection circuit Regulator *1 Chopping stabilized amplifier Output current limit circuit VSS *1. Parasitic diode Figure 1 2. Nch driver + built-in pull-up resistor product Reverse voltage VDD OUT protection circuit Regulator *1 Chopping stabilized amplifier Output current limit circuit VSS *1. Parasitic diode Figure 2 2