AN2785 datasheet(5/51 Pages) STMICROELECTRONICS

Part #	AN2785

Description	L6393 half bridge gate driver

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

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5 / 51 page

AN2785

Pin description

Doc ID 14785 Rev 1

5/51

1

Pin description

Table 1.

Pin description

Pin n.

Pin name

Type

Function

1

PHASE

I

Driver logic input (active high)

2SD

I

Shut-down logic input (active low)

3

BRAKE

I

Driver logic input (active low)

4

VCC

P

Lower section supply voltage

5

DT

I

Dead time setting

6

CPOUT

O

Comparator output (open drain)

7

GND

P

Ground

8

CP-

I

Comparator negative input

9

CP+

I

Comparator positive input

10

LVG (1)

O

Low side driver output

11

NC

Not connected

12

OUT

P

High side (floating) common voltage

13

HVG (1)

1.

The circuit provides less than 1 V on the LVG and HVG pins (at Isink = 10 mA), with VCC > 3 V. This allows

omitting the “bleeder” resistor connected between the gate and the source of the external MOSFET

normally used to hold the pin low; the gate driver also ensures low impedance in SD condition.

O

High side driver output

14

BOOT

P

Floating section (bootstrap) supply voltage

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