Datasheet > OH9249

OH9249

更新时间： 2022-04-24 16:28:01

品牌	Logo	应用领域
OHHALLSENSOR		开关
页数	文件大小	规格书
4页	194K
描述
High Sensitivity Micropower Omnipolar Hall-Effect Switch

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OH9249 数据手册

OH9249

High Sensitivity Micropower Omnipolar Hall-Effect Switch

Order Information

Part Number

OH9249-S

Package Temperature Range

SOT23 -40 to 85°C

Marking ID

GJ9

Packing Type

Tape & Reel

General Description: The OH9249 is an ultra-sensitive Hall-effect switch with

digital latched output, mainly designed for battery-operation, hand-held

equipments. Special CMOS process is used for low-voltage and low-power

requirement. A chopper stabilized amplifier improves stability of magnetic switch

points. A sleep-awake logic controls the IC in sleep time or awake time. This function will

reduce the average operating current of the IC. During the awake time, the output is

changed with the magnetic flux density. During the sleep time, the output is latched in its

previous state and the current consumption will reduce to some μA. The IC switching

behaviour is omnipolar, either north or south pole sufficient strength will turn the output on.

If the magnetic flux density is larger than operating point (BOP), the output will be turned

on; if it is less than releasing point (BRP), the output will be turned off.

Features

Applications

• Micropower Operation

• Cover Switch in Notebook PC/PDA

• 2.5 to 5.5V Power Supply

• Handheld Wireless Application Awake Switch

• Switching for Both Poles of a Magnet (Omnipolar)

• Magnet Switch in Low Duty Cycle

• Stabilized Chopper

Applications

• Superior Temperature Stability

• Digital Output Signal

• Built-in Pull-up Resistor

• ESD Rating: 4000V (Human Body Model)

600V (Machine Model)

Functional Block Diagram

Absolute Maximum Ratings （T_A=25℃）

Supply Voltage VCC_{··············}7 V

Supply Current (Fault) ICC _{··············}6 mA

Output Voltage VOUT _{··············}7 V

Output Current IOUT _{··············}2 mA

Magnetic Flux Density B _{·············}Unlimited

Storage Temperature _{·············}-55 to 150 °C

Junction Temperature _{············}150 °C

NOTE：Electronic semiconductor products are sensitive to

Electro Static Discharge (ESD). Always observe Electro

Static Discharge control procedures whenever handling

semiconductor products.

Page 1

www.ohhall.com

Nanjing Ouzhuo Technology co., Ltd

www.zbling.com

Tel：86-25-52312738，86-25-83247886 FAX: 86-25-52312738

E-mail: ohhall@163.com

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