ISL95820 Ver la hoja de datos (PDF) - Intersil

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ISL95820

Green Hybrid DigitalFour Phase PWM Controller for Intel VR12.5™ CPUs

Intersil 

ISL95820

Electrical Specifications Operating Conditions: VDD = 5V, TA = 0°C to +70°C (ISL95820CRTZ), TA = -40°C to +85°C

(ISL95820IRTZ), fSW = 300kHz, unless otherwise noted. Boldface limits apply over the operating temperature ranges. (Continued)

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

MAX

(Note 7) TYP (Note 7)

UGATE to LGATE Deadtime

tUGFLGR

UGATE falling to LGATE rising, no load,

59

VVDDP = 7V

LGATE to UGATE Deadtime

tLGFUGR

LGATE falling to UGATE rising, no load,

VVDDP = 7V

37

PWM4 (Phase 4)

PWM4 Output Low

PWM4 Output High

PWM4 Tri-State Leakage

V0L

Sinking 5mA

V0H

Sourcing 5mA

PWM = 2.5V

1.0

4.5

1

PROTECTION

Overvoltage Threshold

OVH

VSEN > setpoint for >1µs, SET_OV = 00h

VID +

300mV

Current Imbalance Threshold

Overcurrent Threshold

(See Table 1 for configuration and PSn

dependencies.)

OCP_TH

VSEN > setpoint for >1µs, SET_OV = 01h

One ISEN above another ISEN for >3.2ms

PS0 in 4-, 3-, 2-, 1-Phase configuration,

or any PSx in 1-Phase configuration

PS1 in 3-Phase configuration

3.3

19

54

60

66

36

40

44

PS1 in 4-Phase configuration

PS1/2/3 in 2-Phase configuration

27

30

33

PS2/3 in 4-, 3-Phase configuration

18

20

22

NTC Source Current

NTC = 1.3V

54

60

66

NTC VR_HOT# Trip Voltage, TZ 7Fh to

TZ FFh Threshold

NTC voltage forced, voltage falling threshold 0.881 0.893 0.905

NTC Thermal Alert# Trip Voltage, TZ

3Fh to TZ 7Fh Threshold

NTC voltage forced, voltage falling threshold 0.92

0.932 0.944

NTC VR_HOT# Reset Voltage, TZ 7Fh

to TZ 3Fh Threshold

NTC voltage forced, voltage rising threshold 0.923 0.936 0.948

NTC Thermal Alert# Reset Voltage, TZ

3Fh to TZ 1Fh Threshold

NTC voltage forced, voltage rising threshold 0.96

0.974 0.986

POWER-GOOD AND PROTECTION MONITORS

PGOOD Low Voltage

PGOOD Leakage Current

PGOOD Delay

VR_HOT# Low Resistance

VR_HOT# Leakage Current

ALERT# Low Resistance

ALERT# Leakage Current

LOGICAL AND SERIAL INTERFACE

VOL

IOH

tpgd

IPGOOD = 4mA

PGOOD = 3.3V

Time from VR_ON high to PGOOD high;

VBOOT = 1.7V

IVR_HOT# = 10mA

VVR_HOT# = 5V

IALERT# = 10mA

VALERT = 5V

0.15

0.4

1

3

7

12

1

7

12

1

VR_ON Input Low

VR_ON Input High

VIL

VIH

CRTZ

VIH

IRTZ

0.3

0.7

0.75

UNITS

ns

ns

V

V

µA

V

V

mV

µA

µA

µA

µA

µA

V

V

V

V

V

µA

ms

Ω

µA

Ω

µA

V

V

V

10

FN8318.0

February 4, 2013

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