L6751 datasheet(13/59 Pages) STMICROELECTRONICS

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L6751

Pin description and connection diagrams

Doc ID 023992 Rev 1

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B23

SVCLK

SVC

Serial clock.

A26

ALERT#

V_FIX

Alert (Intel mode).

V_FIX (AMD mode). Pull to 3.3 V to enter V_FIX mode.

B24

SVDATA

SVD

Serial data.

A27

BOOT /

TMAX

Connect a resistor divider to GND/VCC5 in order to define BOOT and TMAX

registers. See Table 10 for details.

VCC5

Main IC power supply.

Operative voltage is 5 V ± 5%. Filter with 1

μF MLCC to GND (typ.).

A28

GDC

Gate drive control pin.

Used for efficiency optimization, see Section 9 for details. If not used, it can be

left floating. Always filter with 1

μF MLCC to GND.

B25

Not internally bonded.

A29

VDRV

Driving voltage for external drivers.

Connect to the selected voltage rail to drive external MOSFET when in

maximum power conditions. IC switches GDC voltage between VDRV and

VCC5 to implement efficiency optimization according to selected strategies.

B26

Not internally bonded.

Table 2.

Pin description (continued)

Pin#

Name

Type

Function

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