Automotive ICs

Automotive, 150°C Operation, High-Withstand Voltage, High-Speed, Zero Crossing Latch Hall Effect IC S-57TZ S Series

DatasheetJul. 01, 2021

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Zero Crossing Latch - a New Detection Methodology which turns a new page in brushless DC motor development

This IC, developed by CMOS technology, is a high-accuracy Hall effect IC that operates with high temperature and high-withstand voltage.
The IC switches output voltage level when the IC detects magnetic flux density (magnetic field) polarity changes. The Zero Crossing Latch detection method realizes polarity changes detection with the higher accuracy than the conventional bipolar latch method. Using this IC with a magnet makes it possible to detect the rotation status in various devices.

Magnetic simulation service
ABLIC Inc. offers a “magnetic simulation service” that provides the ideal combination of magnets and our magnetic sensor 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, refer to “Introduction of Magnetic Simulation Service.” For usage inquiries, contact our sales representatives.

Caution: This product can be used in vehicle equipment and in-vehicle equipment. Before using the product for these purposes, it is imperative to contact our sales representatives.

Features

  • Uses a thin (t0.80 mm max.) TSOT-23-3S or ultra-thin (t0.50 mm max.) HSNT-6(2025) package, allowing for device miniaturization
  • Contributes to reduction of mechanism operation dispersion through high accuracy detection of magnetic flux density (magnetic field) polarity changes
  • Suitable for devices which require high quality due to the production system of this IC which certifies automotive application quality
  • Contributes to device safe design with a built-in reverse voltage protection circuit and output current limit circuit

Specifications

Pole detection
Zero Crossing Latch detection
Output logic*1
VOUT = "L" at S pole detection
VOUT = "H" at S pole detection
Output form*1
Nch open-drain output
Nch driver + built-in pull-up resistor (1.2 kΩ typ.)
Zero crossing latch point
BZ = 0.0 mT typ.
Release point (S pole)*1
BRS = 3.0 mT typ.
BRS = 6.0 mT typ.
Chopping frequency
fC = 500 kHz typ.
Output delay time
tD = 8.0 μs typ.
Power supply voltage range*2
VDD = 2.7 V to 26.0 V
Built-in regulator
Built-in reverse voltage protection circuit
Built-in output current limit circuit
Operation temperature range
Ta = −40°C to +150°C
Lead-free (Sn 100%), halogen-free
AEC-Q100 qualified*3

*1. The option can be selected.
*2. VDD = 2.7 V to 5.5 V when output form is Nch driver + built-in pull-up resistor (1.2 kΩ typ.)
*3. Contact our sales representatives for details.

Applications

  • Brushless DC (BLDC) motor for automotive applications
  • Automobile equipment
  • Housing equipment
  • Industrial equipment