L6384E

Pin connection

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2

Pin connection

Figure 2.

Pin connection (Top view)

Table 4.

Pin description

N°

Pin

Type

Function

1

IN

I

Logic Input: it is in phase with HVG and in opposition of phase with LVG. It

2

Supply input voltage: there is an internal clamp [Typ. 15.6V]

3

DT/SD

I

dead time between high side gate driver and low side gate driver. The

dead time value can be set forcing a certain voltage level on the pin or

connecting a resistor between pin 3 and ground. Care must be taken to

avoid below threshold spikes on pin 3 that can cause undesired shut down

of the IC. For this reason the connection of the components between pin 3

and ground has to be as short as possible. This pin can not be left floating

for the same reason. The pin has not be pulled through a low impedance

4

GND

Ground

5

LVG

O

Low Side Driver Output: the output stage can deliver 400mA source and

650mA sink [Typ. Values]. The circuit guarantees 0.3V max on the pin (@

allows to omit the bleeder resistor connected between the gate and the

source of the external mosfet normally used to hold the pin low; the gate

driver ensures low impedance also in SD conditions.

6

O

High Side Driver Floating Reference: layout care has to be taken to avoid

below ground spikes on this pin.

7

HVG

O

High Side Driver Output: the output stage can deliver 400mA source and

650mA sink [Typ. Values]. The circuit gurantees 0.3V max between this pin

threshold. This allows to omit the bleeder resistor connected between the

gate and the source of the external mosfet normally used to hold the pin

low; the gate driver ensures low impedance also in SD conditions.

8

Vboot

Bootstrap Supply Voltage: it is the high side driver floating supply. The

bootstrap capacitor connected between this pin and pin 6 can be fed by an

internal structure named "bootstrap driver" (a patented structure). This

structure can replace the external bootstrap diode.

IN

DT/SD

GND

1

3

2

4

LVG

VOUT

HVG

8

7

6

5

D97IN519