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SS732LUA 数据表(PDF) 6 Page - SEC Electronics Inc. |
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SS732LUA 数据表(HTML) 6 Page - SEC Electronics Inc. |
6 / 10 page SS732/SS632 Hall Latch - High Sensitivity DC Operating Parameters TA = -40 C to 150 C, VDD = 2.5V to 24V (unless otherwise specified) rameter Test Conditions(SO) OUT(SO) Test Conditions(UA) OUT(UA) Pa So B B > BOP uth pole < BRP High Low Nort B > BOP Low B < BRP High h pole Outp ersus magnetic pole ut behaviour v pplication Information s strongly recommended that an external bypass capacitor be connected (in close proximity to the Hall sensor) between the supply(VDD Pin) and ground(GND Pin) of the device to reduce both external noise and noise generated by the chopper stabilization technique. As is shown in the two figures in next page, a 0.1μF capacitor is typical. A It i ed to connect a resistor or a diode in series with the VDD pin. When using a CC Us Therefore, a 100Ω/0.25W resistor for 5V application and a diode for higher supply voltage are recommended. Both solutions provide When a figure 1 The low ce supply voltage V . The diode D1 provides additional reverse voltage protection. The S732 have been optimized for commutation applications in 5V and 12V brushless D The follow figure is the typical application circuit for 3 phase brushless DC motors. For reverse voltage protection, it is recommend resistor, three points are important: - the resistor has to limit the reverse current to 50mA maximum (VCC / R1 ≤ 50mA) - the resulting device supply voltage VDD has to be higher than VDD min (VDD = VCC – R1*IDD) - the resistor has to withstand the power dissipated in reverse voltage condition (PD = V 2/R1) ing a diode, a reverse current cannot flow and the voltage drop is almost constant (≈0.7V). the required reverse voltage protection. weak power supply is used or when the device is intended to be used in noisy environment, it is recommended that 3.3 from the Application Information section is used. -pass filter formed by R1 and C1 and the Zener diode Z1 bypass the disturbances or voltage spikes occurring on the devi DD 6 V2.00 May.1, 2012 C motors. S732 R2 C2 VDD GND OUT C1 S732 R1:100 Automotive and Severe Environment Protection Circuit Typical Three-Wire Application Circuit R2 C2 VDD GND C1 OUT Z1 D1 |
类似零件编号 - SS732LUA |
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类似说明 - SS732LUA |
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