Rev. J 06/13

11

LNK302/304-306

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Parameter

Symbol

Conditions

SOURCE = 0 V; T

See Figure 7

(Unless Otherwise Specified)

Min

Typ

Max

Units

Output

ON-State

Resistance

R

DS(ON)

LNK302

I

T

48

55.2

Ω

T

76

88.4

LNK304

I

T

24

27.6

T

38

44.2

LNK305

I

T

12

13.8

T

19

22.1

LNK306

I

T

7

8.1

T

11

12.9

OFF-State Drain

Leakage Current

I

DSS

V

V

T

LNK302/304

50

mA

LNK305

70

LNK306

90

Breakdown Voltage

BV

DSS

V

T

700

V

Rise Time

t

R

Measured in a Typical Buck

Converter Application

50

ns

Fall Time

t

F

50

ns

DRAIN Pin

Supply Voltage

50

V

Output Enable Delay

t

EN

See Figure 9

10

ms

Output Disable

Setup Time

t

DST

0.5

ms

Auto-Restart

ON-Time

t

AR

T

See Note H

LNK302

Not Applicable

ms

LNK304-306

50

Auto-Restart

Duty Cycle

DC

AR

LNK302

Not Applicable

%

LNK304-306

6

Notes:

A. Total current consumption is the sum of I

I

B. Since the output MOSFET is switching, it is difficult to isolate the switching current from the supply current at the DRAIN.

An alternative is to measure the BYPASS pin current at 6 V.

C. See Typical Performance Characteristics section Figure 14 for BYPASS pin start-up charging waveform.

D. This current is only intended to supply an optional optocoupler connected between the BYPASS and FEEDBACK

pins and not any other external circuitry.

E. For current limit at other di/dt values, refer to Figure 13.

F. This parameter is guaranteed by design.

G. This parameter is derived from characterization.

H. Auto-restart on time has the same temperature characteristics as the oscillator (inversely proportional to frequency).