NCP5386MNR2G datasheet(11/33 Pages) ONSEMI

Part #	NCP5386MNR2G

Description	1/2 Phase Controller for CPU and Chipset Applications

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Manufacturer	ONSEMI [ON Semiconductor]

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NCP5386, NCP5386A, NCP5386B

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11

ELECTRICAL CHARACTERISTICS

(Unless otherwise stated: 0°C < TA < 85°C; 4.75 V < VCC < 5.25 V; All DAC Codes; CVCC = 0.1 mF)

Parameter

Units

Max

Typ

Min

Test Conditions

Overvoltage Protection

Overvoltage Threshold

DAC+

160

−

DAC+

200

mV

Delay (Note 3)

−

100

−

ns

Undervoltage Protection

VCC UVLO Start Threshold

4

−

4.5

V

VCC UVLO Stop Threshold

3.8

−

4.3

V

VCC UVLO Hysteresis

100

215

−

mV

VID Inputs

Upper Threshold

VUPPER

−

800

mV

Lower Threshold

VLOWER

300

−

mV

Input Bias Current

−

500

nA

Delay before Latching VID Change

(VID De−Skewing) (Note 3)

Measured from the edge of the first VID

change

500

−

800

ns

Internal DAC Slew Rate Limiter

Positive Slew Rate Limit

VID Step of +500 mV

−

6.3

−

mV/ms

Negative Slew Rate Limit

VID Step of −500 mV

−

−6.3

−

mV/ms

Input Supply Current

VCC Operating Current

EN = LOW, No PWM

−

20

mA

Temperature Sensing

VR_FAN Upper Voltage Threshold

Fraction of VREF voltage above which

VR_FAN output pulls low

−

0.4 x

VREF

−

VR_FAN Lower Voltage Threshold

Fraction of VREF voltage below which

VR_FAN output is open

−

0.33 x

VREF

−

VR_FAN Output Saturation Voltage

ISINK = 4 mA

−

0.3

V

VR_FAN Output Leakage Current

High Impedance State

−

1

mA

NTC Pin Bias Current

−

1

mA

12VMON

12VMON (Rising Threshold)

Sufficient power stage supply voltage

0.728

−

0.821

V

12VMON (Falling Threshold)

Insufficient power stage supply voltage

0.643

−

0.725

V

3. Guaranteed by design. Not tested in production.

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