L6701 datasheet(5/44 Pages) STMICROELECTRONICS

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L6701

2 Pins description and connection diagrams

5/44

Pins description and connection diagrams

Figure 1.

Pins connection (Top view)

2.1

Pin description

Table 1.

Pins description

Pin n

Name

Function

1SGND

All the internal references are referred to this pin. Connect to the PCB Signal

Ground.

2VCC

Device Power Supply and LS driver supply.

Operative voltage is 12V ±15%. Filter with at least 1

µF MLCC vs. ground.

3LGATE1

Channel 1 LS Driver Output.

A small series resistor helps in reducing device-dissipated power.

PGND

LS Drivers return path. Connect to Power ground Plane.

5LGATE2

Channel 2 LS Driver Output.

A small series resistor helps in reducing device-dissipated power.

6LGATE3

Channel 3 LS Driver Output.

A small series resistor helps in reducing device-dissipated power.

BOOT1

Channel 1 HS driver supply.

Connect through a capacitor (100nF typ.) to PHASE1 and provide necessary

Bootstrap diode.

A small series resistor upstream the boot diode helps in reducing Boot capacitor

overcharge.

8UGATE1

Channel 1 HS driver output.

A small series resistors helps in reducing device-dissipated power.

PHASE1

Channel 1 HS driver return path.

It must be connected to the HS1 MOSFET source and provides return path for

the HS driver of channel 1.

VID0

VID5

FBR

FBG

ISEN3

ISEN2

ISEN1

CS+

CS-

VSEN

COMP

PHASE2

UGATE2

BOOT2

PHASE1

UGATE1

BOOT1

LGATE3

LGATE2

PGND

LGATE1

VCC

SGND

VID4

VID3

VID2

VID1

SSEND / PGOOD

PHASE3

UGATE3

BOOT3

OSC / EN / FAULT

DAC_SEL

REF_IN

REF_OUT

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