OH44L High Temperature Unipolar Hall Effect IC Order Information PN OH44L Operate temperature -40～150℃ Package 1000pcs/bag General Description Description:: OH44L high temperature unipolar hall effect IC 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 Applications � High reliability � Speed measurement � good temperature performance � Home appliances � anti-environmental stress � Position detection � Reverse Polarity Protection � Flow measurement Absolute Maximum Ratings （TA=25℃） Supply VoltageVCC··············4.5-28V Operating Temperature Range TA ········-40 ～ 150℃ Output Current IO···················25mA Storage Temperature RangeTS ················-65～150℃ Magnetic-electrical Transfer Characteristics Functional Block Diagram Diagram： VOUT Pin1.VCC VOH REG BH Pin3.Vout AMP m VOL 0 BRP BOP B Pin2.GND Electrical Characteristics (Ta= 25°C ) Value Parameter Symbol Conditions Unit Min Typ Max 4.5 - 24 V Supply Voltage VCC Output Saturation Voltage VOL Vcc=4.5V, Iout=20mA， B≥BOP - 200 400 mV Output Leakage Current IOH Vout=24V，B≤BRP - 1.0 10 μA Supply Current ICC VCC=Vccmax OC output - 5 - mA Output Rise Time tr - 0.2 2.0 μS Output Falling Time tf Vcc=12V, RL=820Ω, CL=20pF - 0.18 2.0 μS Nanjing Ouzhuo Technology co., Ltd Tel：86-25-52312738，86-25-83247886 Page 1 www.ohhall.com FAX: 86-25-52312738 www.zbling.com E-mail: [email protected] OH44L High Temperature Unipolar Hall Effect IC Magnetic Characteristics (Ta= 25°C ) (1mT = 10 Gauss) Value Parameter symbol Unit Min Typ Max Operate Point BOP - - 26 mT Release Point BRP 3 - - mT Hysteresis BH - 5 - mT Test Circuit for Reference Reference： Pin Descriptions Descriptions：1.VCC 2. GND 3.Vout Vcc Caution: 1)when installing, please minimize mechanical 0.76±0.05 1.58±0.1 stress on the IC shell and leads. 45° ±1 ° RL 3° ± 1° 2)Welding temperature should be lower than 0.05Vout 260 ℃, less than 3 seconds. 3)IC is OC output, so a pull-up resistor CL RL=820Ω CL=20 pF 0.1(max) 0.05 1° ± 3° connected pin 1 (power) and pin 3 (output) is 标准 最大单边 necessary. A 10: 1 3°±1° 6°±1° 45° ±1 ° 3-0.44 0.76±0.05 14.5±1 1.58±0.1 A 2.3±0.1 3-0.44 45° ±1 ° 3° ± 1° 1° ± 3° 标准 0.05 0.05 1° ± 3° 标准 0.1(max) 3-0.44 4.1±0.1 Nanjing Ouzhuo Technology co., Ltd Tel：86-25-52312738，86-25-83247886 3.18±0.1 0.38 Page 2 www.ohhall.com FAX: 86-25-52312738 6°±1° 3°±1° 6°±1° 最大单边 10: 1 A 3°±1° www.zbling.com 3-0.44 6°±1° E-mail: [email protected] 3°±1° 3-0.44 3°±1° 2.3±0.1 1.27 最大单边 A A 1.27 0.05 10: 1 4.1±0.1 3° ± 1° 0.05 6°±1° 14.5±1 6°±1° 3.18±0.1 3°±1° 0.76±0.05 1.58±0.1 4.1±0.1 3.18±0.1 unit:mm) Dimension Dimension（unit:mm)