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L6741TR Datasheet(PDF) 4 Page - STMicroelectronics |
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L6741TR Datasheet(HTML) 4 Page - STMicroelectronics |
4 / 16 page Pins description and connection diagrams L6741 4/16 2 Pins description and connection diagrams Figure 3. Pins connection (Top view) 2.1 Pin description Table 2. Pins descriptions 1 2 3 4 LGATE VCC PVCC PHASE GND PWM BOOT UGATE 5 6 7 8 L6741 Pin n Name Function 1UGATE High-side driver output. Connect to High-Side MOSFET gate. 2BOOT High-side driver supply. this pin supplies the high-side floating driver. Connect through a RBOOT - CBOOT capacitor to the PHASE pin. Internally connected to the cathode of the integrated Bootstrap diode. See Section 5.3 for guidance in designing the capacitor value. 3PWM Control input for the driver (5V compatible). This pin controls the state of the driver and which external MOSFET have to be turned-ON. If left floating, it causes the driver to enter the High-Impedance (HiZ) state which causes all mosfets to be OFF. See Section 5.1 for details about HiZ. 4GND All internal references, logic and drivers are referenced to this pin. Connect to the PCB ground plane. 5LGATE Low-side driver output. Connect directly to the Low-Side MOSFET gate. A small series resistor can be useful to reduce dissipated power especially in high frequency applications. 6VCC Device and LS driver power supply. Connect to any voltage between 5V and 12V. Bypass with low-ESR MLCC capacitor to GND. 7 PVCC Integrated bootstrap diode anode supply. Connect to any voltage between 5V and 12V to supply the HS driver accordingly. 8 PHASE High-side driver return path. Connect to the high-side MOSFET source. This pin is also monitored for the adaptive dead-time management and Pre-OV protection. |
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