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Specifications
Operation Points:
3mT
Operating Current:
5uA
Release Points:
2mT
Operating Temperature:
-40℃~+85℃
Voltage - Supply:
1.65V~9V
Mfr. Part #:
OH9251-S
Package:
TSOT-23-3
Key Attributes
Model Number:
OH9251-S
Product Description
Product Overview
The OH9251 is a micropower CMOS Hall-effect switch designed for temperature stability and stress resistance. It features a dynamic offset cancellation for superior high-temperature performance and operates at low voltages, starting from 1.65V. This omnipolar sensor requires the presence of magnetic fields for operation and is suitable for various battery-powered applications requiring a reliable solid-state switch.
Product Attributes
- Brand: OH Series (Nanjing Ouzhuo Technology co., Ltd)
- Origin: China
- Certifications: Halogen Free (verified by third party Lab)
Technical Specifications
| Parameter | Symbol | Conditions | Min | Typ | Max | Unit |
| Electrical Characteristics (Ta=25, VDD=1.8V) | ||||||
| Supply Voltage | VCC | 1.65 | - | 6 | V | |
| Awake Supply Current | IAW | 1.4 | 3 | - | mA | |
| Sleep Supply Current | ISL | 3.6 | 7 | - | A | |
| Average Supply Current | IAVG | - | 5 | 10 | A | |
| Output Leakage Current | Ioff | Output off | - | - | 1.0 | A |
| Output High Voltage | VOH | IOUT=0.5mA(Source) | VDD-0.2 | - | - | V |
| Output Low Voltage | VOL | IOUT=0.5mA(Sink) | 0.2 | - | - | V |
| Awake Mode Time | tAW | OPERATING | 40 | 80 | - | s |
| Sleep Mode Time | tSL | OPERATING | 40 | 80 | - | ms |
| Duty Cycle | D | - | 0.1 | - | % | |
| Electro-Static Discharge | HBM | 4 | - | - | KV | |
| Magnetic Characteristics (Ta=25, VDD=1.8V) | ||||||
| Operate Point (South Pole) | BOPS | B>BOPS,VOUT=low(output on) | 30 | 55 | - | GS |
| Operate Point (North Pole) | BOPN | B>BOPN,VOUT=low(output on) | -55 | -30 | - | GS |
| Release Point (South Pole) | BRPS | B<BRPS,VOUT=high(output off) | 10 | 20 | - | GS |
| Release Point (North Pole) | BRPN | B<BRPN,VOUT=high(output off) | -20 | -10 | - | GS |
| Hysteresis | BH | |BOPX - BRPX| | - | 10 | - | GS |
1811061531_Nanjing-Ouzhuo-Tech-OH9251-S_C174066.pdf
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