NCP392C

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5

Table 3. ELECTRICAL CHARACTERISTICS

Min / Max limits values (−40

Characteristics

Symbols

Conditions

Min

Typ

Max

Unit

Input Voltage Range

2.8

28

V

Under voltage Lockout

UVLO

2.8

V

Under voltage Lockout

hysteresis

−

60

−

mV

Internal Over voltage

Lockout threshold

OVLO

OVLO pin tied to GND − 25

°C

NCP392CR

13.4

13.8

14.2

V

NCP392CS

15

15.5

16

Internal Over voltage Lockout

hysteresis

OVLO pin tied to GND − 25

°C

1.5

2.5

%

External OVLO Reference

NCP392CR

1.12

1.20

1.24

V

NCP392CS

1.18

1.221

1.26

External Adjustable OVLO

4

20

V

Over−Voltage Lockout

Hysteresis

2

%

External OVLO select

threshold

0.2

0.3

V

Vin versus Vout Resistance

34

50

m

W

Supply Quiescent Current

No load, EN = 0.4 V

58

100

mA

Standby Current

No load, EN = 1.2 V,

6

mA

OVLO Supply current

60

100

mA

OVLO select leakage

100

nA

LOGIC

EN Voltage High

1.2

V

EN Voltage Low

0.4

V

ACOK Output Low Voltage

0.4

V

TIMINGS

Start up time

15

ms

Enable time

15

ms

Soft Start

Rload, 100

W, EN low

1

ms

ACOK Start up time

From Vin Valid to ACOK tied low, EN low or high

30

ms

Turn off time

Surge off time

100

ns

Disable time

20

ms

OVLO Turn off time

1.5

ms

TSD

Thermal shutdown

TSD

140

°C

Thermal shutdown rearming

TSD rearm

115

°C

Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product

performance may not be indicated by the Electrical Characteristics if operated under different conditions.

3. Please contact your ON Semiconductor representative for additional OVLO threshold.

Electrical parameters are guaranteed by correlation across the full range of temperature.