OH137 Datasheet, PDF (1/2 Pages) Nanjing Ouzhuo Technology Co., Ltd. – Unipolar Hall Effect Switch IC

OH137
Unipolar Hall Effect Switch IC
Order Information
PN
OH137
Operate temperature -40～85℃ Package 1000pcs/bag
General Description: OH137 is a switched Hall-Effect IC which is for
contactless switching applications. The device includes an on-chip Hall
voltage generator for magnetic sensing, an amplifier that amplifies the Hall
voltage, a schmitt trigger to provide switching hysteresis for noise rejection,
and an open-collector output.
Features
� 4.5V to 24V DC operation voltage
� Open-Collector pre-driver
� 25mA maximum sinking output current.
� Reverse Polarity Protection
Absolute Maximum Ratings （TA=25℃）
Applications
� Speed measurement
� Home appliances
� Position detection
� Flow measurement
Supply VoltageVCC··············4.5-24V Operating Temperature Range TA ···········-40～85℃
Output Current IO···················25mA
Storage Temperature RangeTS ················-55～150℃
Magnetic-electrical Transfer Characteristics
VOUT
VOH
Functional Block Diagram：
Pin1.VCC
BH
REG
m ^AMP
VOL
Pin3.Vout
0
BRP
BOP
B
Electrical Characteristics (Ta= 25°C )
Parameter
Symbol
Conditions
Pin2.GND
Value
Unit
Min Typ Max
Supply Voltage
VCC
Output Saturation Voltage VOL
Output Leakage Current
IOH
Vcc=4.5V, RL=2KΩ，
B≥BOP
Vout=Vccmax，B≤BRP
4.5 - 24 V
- 200 400 mV
- 1.0 10 μA
Supply Current
Output Rise Time
Output Falling Time
ICC
VCC=Vccmax OC output -
3
5 mA
tr
Vcc=12V, RL=820Ω,
- 0.12 1.20 μS
tf
CL=20pF
- 0.14 1.40 μS
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Nanjing Ouzhuo Technology co., Ltd
www.ohhall.com
Tel：86-25-52312738，86-25-83247886 FAX: [phone]
www.zbling.com
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