NCP5393A

http://onsemi.com

11

Parameter

Unit

Max

Typ

Min

Test Conditions

PSI_L (Power Saving Phase Shed and Control, Active Low) (This pin is used in PVI mode only)

PSI_L Hysteresis

100

mV

CURRENT LIMIT

20 mV < (CSx − CSxN) < 60 mV (CS inputs tied)

5.7

6.0

6.3

V/V

ILIM Pin Input Bias Current

−

−

0.5

mA

ILIM Pin Working Voltage Range

(Note 3)

0.2

−

2.0

V

ILIM Offset Voltage

Offset extrapolated to CSx−CSxN = 0 V, and referred

to the ILIM pin

−

30

−

mV

Delay

−

600

−

ns

VDDNB Current Limit Coefficient

1.0

V

Output Offset Voltage Above VDAC

0

−

800

mV

Over Voltage Threshold

In normal operation, with no VID changes

+ 220

+ 235

+ 250

mV

VCCA UNDERVOLTAGE PROTECTION

VCCA UVLO Start Threshold

4.0

4.25

4.5

V

VCCA UVLO Stop Threshold

3.8

4.05

4.3

V

VCCA UVLO Hysteresis

200

mV

INPUT SUPPLY CURRENT

VCC Operating Current

ENABLE held Low, No PWM operation

−

25

35

mA

12VMON

12VMON (High Threshold)

8

8.5

9

V

12VMON (Low Threshold)

7

7.5

8

V

12VMON Hysteresis

Low − High or High − Low

1.0

V

3. Guaranteed by design. Not production tested.

TYPICAL CHARACTERISTICS

Figure 1. SS Time vs. Temperature

Figure 2. Enable Threshold Voltage vs.

Temperature

75

50

25

0

1.95

1.97

1.99

2.01

2.03

75

50

25

0

1.0

1.1

1.2

1.3

1.4

1.5

Enable Increasing Voltage

Enable Decreasing Voltage