L6714 데이터 시트보기 (PDF) - STMicroelectronics

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L6714

4 phase controller with embedded drivers for Intel VR10, VR11 and AMD 6Bit CPUs

STMicroelectronics 

L6714

Pin settings

Table 1. Pin functions

N°

Pin

Function

SSEND - Intel Mode. Soft Start END Signal.

Open Drain Output set free after SS has finished and pulled low when triggering

any protection. Pull up to a voltage lower than 5V (typ), if not used it can be left

46

SS_END/ floating.

PGOOD PGOOD - AMD Mode.

Open Drain Output set free after SS has finished and pulled low when VSEN is

lower than the relative threshold. Pull up to a voltage lower than 5V (typ), if not

used it can be left floating.

Voltage Regulator HOT. Over Temperature Alarm Signal.

Open Drain Output, set free when TM overcomes the Alarm Threshold.

47 VR_HOT

Thermal Monitoring Output enabled if Vcc > UVLOVCC.

See “Thermal monitor” Section for details and typical connections.

Voltage Regulator FAN. Over Temperature Warning Signal.

Open Drain Output, set free when TM overcomes the Warning Threshold.

48 VR_FAN

Thermal Monitoring Output enabled if Vcc > UVLOVCC.

See “Thermal monitor” Section for details and typical connections.

Thermal Monitor Input.

49

TM

It senses the regulator temperature through apposite network and drives

VR_FAN and VR_HOT accordingly.Short TM pin to SGND if not used.

See “Thermal monitor” Section for details and typical connections.

50

SGND

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

Ground.

Channel 4 LS Driver Supply.

51 VCCDR4 It must be connected to others VCCDRx pins.

LS Driver supply can range from 5Vbus up to 12Vbus, filter with 1µF MLCC cap

vs. PGND4.

52

LGATE4

Channel 4 LS Driver Output. A small series resistor helps in reducing device-

dissipated power.

53 PGND4 Channel 4 LS Driver return path. Connect to Power ground Plane.

54 PGND2 Channel 2 LS Driver return path. Connect to Power ground Plane.

55

LGATE2

Channel 2 LS Driver Output. A small series resistor helps in reducing device-

dissipated power.

Channel 2 LS Driver Supply.

56 VCCDR2 It must be connected to others VCCDRx pins.

LS Driver supply can range from 5Vbus up to 12Vbus, filter with 1µF MLCC cap

vs. PGND2.

Channel 3 LS Driver Supply.

57 VCCDR3 It must be connected to others VCCDRx pins.

LS Driver supply can range from 5Vbus up to 12Vbus, filter with 1µF MLCC cap

vs. PGND3.

58

LGATE3

Channel 3 LS Driver Output.A small series resistor helps in reducing device-

dissipated power.

59 PGND3 Channel 3 LS Driver return path. Connect to Power ground Plane.

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