4

SC284P

Parameter

Symbol

Conditions

Min

Typ

Max

Units

Current Limit Threshold

I

LIMIT

2.25

3.0

3.75

A

Oscillator Frequency

f

OSC

Channel A & B

2.0

2.5

3.0

MHz

I

LK(LX)

-0

-

µA



0

Foldback Holding Current

I

CL_HOLD

600

mA

R

DSON_P

Channel A & B; I

95

mΩ

Low Side Switch Resistance

R

DSON_N

Channel A & B; I

65

I

CTL_

Channel A & B; CTL

-2.0

2.0

µA

CTLx Input High Threshold

V

CTLx_HI

Channel A & B

.6

V

CTLx Input Low Threshold

V

CTLx_LO

Channel A & B

0.4

V

Impedence of PGOOD Low

R

PGOOD_LO

8

Ω

PGOOD Threshold

V

PG_TH

90

%

PGOOD Delay

V

PG_DLY

Asserted

2

ms

PGOOD= Low

20

μs

V

V

OVP

Channel A & B

5

%

T

SD

Channel A & B

60

°C

T

SD_HYS

Channel A & B

0

°C

Electrical Characteristics (continued)

Notes:

() The “Output Voltage Tolerance” includes output voltage accuracy, voltage drift over temperature.

(4) Thermal shutdown protection is independent for each channel.