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S-57K1 A Series
FOR AUTOMOTIVE 125°C OPERATION HIGH-WITHSTAND VOLTAGE
www.sii-ic.com
HIGH-SPEED BIPOLAR HALL EFFECT LATCH
© SII Semiconductor Corporation, 2013-2015
Rev.1.5_01
The S-57K1 A Series, developed by CMOS technology, is a high-accuracy Hall IC that operates with high temperature and
high-withstand voltage.
The output voltage changes when the S-57K1 A Series detects the intensity level of magnetic flux density and a polarity
change. Using the S-57K1 A Series with a magnet makes it possible to detect the rotation status in various devices.
The S-57K1 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-57K1 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.
Features
Pole detection:
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.
Bipolar latch
VOUT = "L" at S pole detection
VOUT = "H" at S pole detection
Nch open-drain output, Nch driver + built-in pull-up resistor
BOP = 3.0 mT typ., BOP = 6.0 mT typ.
tCYCLE = 8.0 μs typ.
VDD = 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
1

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FOR AUTOMOTIVE 125°C OPERATION HIGH-WITHSTAND VOLTAGE HIGH-SPEED BIPOLAR HALL EFFECT LATCH
S-57K1 A Series
Rev.1.5_01
Block Diagrams
1. Nch open-drain output product
VDD
VSS
Reverse voltage
protection circuit
Regulator
Chopping
stabilized
amplifier
Output current limit circuit
OUT
*1
*1. Parasitic diode
Figure 1
2. Nch driver + built-in pull-up resistor product
VDD
VSS
Reverse voltage
protection circuit
Regulator
Chopping
stabilized
amplifier
Output current limit circuit
*1. Parasitic diode
Figure 2
OUT
*1
2

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FOR AUTOMOTIVE 125°C OPERATION HIGH-WITHSTAND VOLTAGE HIGH-SPEED BIPOLAR HALL EFFECT LATCH
Rev.1.5_01
S-57K1 A Series
AEC-Q100 in Process
Contact our sales office for details of AEC-Q100 reliability specification.
Product Name Structure
1. Product name
S-57K1 x B x x A - M3T2 U
Environmental code
U: Lead-free (Sn 100%), halogen-free
Package name (abbreviation) and packing specifications*1
M3T2: SOT-23-3, Tape
Operation temperature
A: Ta = 40°C to +125°C
Magnetic sensitivity
1: BOP = 3.0 mT typ.
2: BOP = 6.0 mT typ.
Detection logic for magnetism
L: VOUT = "L" at S pole detection
H: VOUT = "H" at S pole detection
Pole detection
B: Bipolar latch
*1. Refer to the tape drawing.
Output form
N: Nch open-drain output
R: Nch driver + built-in pull-up resistor
2. Package
Package Name
SOT-23-3
Table 1 Package Drawing Codes
Dimension
MP003-C-P-SD
Tape
MP003-C-C-SD
Reel
MP003-Z-R-SD
3. Product name list
Table 2
Product Name
Output Form
Pole Detection
S-57K1NBL1A-M3T2U Nch open-drain output
Bipolar latch
S-57K1NBL2A-M3T2U Nch open-drain output
Bipolar latch
S-57K1NBH1A-M3T2U Nch open-drain output
Bipolar latch
S-57K1RBL1A-M3T2U Nch driver + built-in pull-up resistor Bipolar latch
Remark Please contact our sales office for products other than the above.
Detection Logic
for Magnetism
VOUT = "L" at S pole
detection
VOUT = "L" at S pole
detection
VOUT = "H" at S pole
detection
VOUT = "L" at S pole
detection
Magnetic
Sensitivity (BOP)
3.0 mT typ.
6.0 mT typ.
3.0 mT typ.
3.0 mT typ.
3