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L6788ATR датащи(PDF) 8 Page - STMicroelectronics |
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L6788ATR датащи(HTML) 8 Page - STMicroelectronics |
8 / 18 page Pins description and connection diagram L6788A 8/18 Doc ID 15341 Rev 2 26 MODE Phase Number selection pin. The maximum voltage on mode pin has to be limited to 3.6 V. The voltage on MODE pin is used to select the number of phase used during normal operation. The device has an internal resistor divider in order to have 1.7 V on MODE pin when it is left floating. See “phase number selection” section for more details. 27 TCS Temperature sense input pin. Connecting the PTC network between 5 VCC and AGND in order to generate on TCS pin a voltage proportional to the temperature. The device reads the TCS pin voltage and compare it with two thresholds in order to implements the warning and shutdown temperature action. See “thermal monitoring” section for details. 28 5VCC 5 VCC pin. The pin output is 5 V voltage with a minimum of 20 mAdc. The device supply the 5 VCC if VCC1_IC pin voltage is higher than 8 (typ). Filter the 5 VCC pin with a capacitor (470 nFMIN - 2.2 µF MAX) versus PGND. 29 UGATE3 Channel 3 HS driver output. It must be connected to the HS3 MOSFET gate. A small series resistors helps in reducing device-dissipated power. 30 BOOT3 Channel 3 HS driver supply. Connect through a capacitor (100 nF typ.) to PHASE3 Needed external bootstrap diode. The device implements Vin detections through this pin. see “vin detection” section for details. A small resistor in series to the boot diode helps in reducing Boot capacitor overcharge (see reference schematic). 31 PHASE3 Channel 3 HS driver return path. Connected to the HS3 MOSFET source and provides return path for the HS driver of channel 3. 32 LGATE3 Channel 3 LS driver output. Driver can support 12 V bus voltage. A small series resistor helps in reducing device-dissipated power. 33 VCC2_DR LS driver supply. Driver can support 12 V bus voltage. Connect to 12 V_BUS and filter with RC network. (Suggested value: R = 2.2 /0805 size; C=2x1 µF MLCC capacitor vs. PGND). 34 UGATE2 Channel 2 HS driver output. It must be connected to the HS2 MOSFET gate. A small series resistors helps in reducing device-dissipated power. 35 BOOT2 Channel 2 HS driver supply. Connect through a capacitor (100 nF typ.) to PHASE2 Needed external bootstrap diode. The device implements Vin detections through this pin. See “vin detection” section for details. A small resistor in series to the boot diode helps in reducing Boot capacitor overcharge (see Reference schematic). 36 PHASE2 Channel 2 HS driver return path. Connected to the HS2 MOSFET source and provides return path for the HS driver of channel 2. 37 LGATE2 Channel 2 LS driver output. Driver can support 12 V bus voltage. A small series resistor helps in reducing device-dissipated power. Table 2. Pin description (continued) Pin n° Name Description |
Аналогичный номер детали - L6788ATR |
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Аналогичное описание - L6788ATR |
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