Pins description and connection diagrams

L6741

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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

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.