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L6227Q датащи(PDF) 6 Page - STMicroelectronics |
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L6227Q датащи(HTML) 6 Page - STMicroelectronics |
6 / 27 page Pin connection L6227Q 6/27 Table 4. Pin description N° Pin Type Function 1, 21 GND GND Signal ground terminals. 9OUT1B Power output Bridge B output 1. 11 RCB RC pin RC network pin. A parallel RC network connected between this pin and ground sets the current controller OFF-time of the bridge B. 12 SENSEB Power supply Bridge B source pin. This pin must be connected to power ground through a sensing power resistor. 13 IN1B Logic input Bridge B input 1 14 IN2B Logic input Bridge B input 2 15 VREFB Analog input Bridge B current controller reference voltage. Do not leave this pin open or connect to GND. 16 ENB Logic input (1) Bridge B enable. LOW logic level switches OFF all power MOSFETs of bridge B. This pin is also connected to the collector of the overcurrent and thermal protection transistor to implement over current protection. If not used, it has to be connected to +5 V through a resistor. 17 VBOOT Supply voltage Bootstrap voltage needed for driving the upper power MOSFETs of both bridge A and Bridge B. 19 OUT2B Power output Bridge B output 2. 20 VSB Power supply Bridge B power supply voltage. It must be connected to the supply voltage together with pin VSA. 22 VSA Power supply Bridge A power supply voltage. It must be connected to the supply voltage together with pin VSB. 23 OUT2A Power output Bridge A output 2. 24 VCP Output Charge pump oscillator output. 25 ENA Logic input (1) Bridge A enable. LOW logic level switches OFF all power MOSFETs of bridge A. This pin is also connected to the collector of the overcurrent and thermal protection transistor to implement over current protection. If not used, it has to be connected to +5 V through a resistor. 26 VREFA Analog input Bridge A current controller reference voltage. Do not leave this pin open or connect to GND. 27 IN1A Logic input Bridge A logic input 1. 28 IN2A Logic input Bridge A logic input 2. 29 SENSEA Power supply Bridge A source pin. This pin must be connected to power ground through a sensing power resistor. 30 RCA RC pin RC network pin. A parallel RC network connected between this pin and ground sets the current controller OFF-time of the bridge A. 31 OUT1A Power output Bridge A output 1. 1. Also connected at the output drain of the over current and thermal protection MOSFET. Therefore, it has to be driven putting in series a resistor with a value in the range of 2.2 k Ω - 180 kΩ, recommended 100 kΩ. |
Аналогичный номер детали - L6227Q |
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Аналогичное описание - L6227Q |
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