L6722 datasheet(7/34 Pages) STMICROELECTRONICS

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L6722

2 Pins description and connection diagrams

7/34

Pins description and connection diagrams

Figure 4.

Pins connection (top view)

2.1

Pin description

Table 1.

Pins description

Pin#

Name

Function

VSEN

Remote Buffer Output. It manages OVP and UVP protections and

PGOOD. See Section 9 for details.

2FB

Error Amplifier Inverting Input. Connect with a resistor RFB vs. VSEN and

with an RF - CF vs. COMP.

3COMP

Error Amplifier Output. Connect with an RF - CF vs. FB.

The device cannot be disabled by pulling down this pin.

4SGND

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

Signal Ground.

5VCC

Device Power Supply as well as LS driver supply.

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

µF MLCC vs. ground.

N.C.

Not Internally Bonded.

7LGATE1

Channel 1 LS Driver Output.

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

PGND

LS Driver return path. Connect to Power ground Plane.

PHASE3

N.C.

PGOOD

N.C.

OSC / INH / FLT

N.C.

REF_IN

REF_OUT

N.C.

LGATE2

PGND

LGATE1

N.C.

VCC

SGND

COMP

VSEN

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