50mA to 600mA Programmable

Current-Limit Switches

_______________________________________________________________________________________

3

Note 4: Turn-on time and turn-off time are defined as the difference in the time between when the output crosses 10% and 90%

of the final output voltage.

Note 5: Blanking time and retry time are generated by the same oscillator. Therefore, the ratio of

is a constant value of 32. See Figures 2 and 3.

t

t

RETRY

BLANK

I

(mA)

2

R(k

2.48 k

LIM

SETI

=

+

9042( )

)(

)

V

ΩΩ

ELECTRICAL CHARACTERISTICS (continued)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

FLAG OUTPUT

FLAG Output Logic-Low Voltage

0.4

V

FLAG Output Leakage Current

1

μA

DYNAMIC

Turn-On Time

(Note 4)

120

μs

Turn-Off Time

120

μs

MAX4995A/AL/B/C

5

Current-Limit Reaction Time

578k , output high and

then short-circuit

applied

MAX4995AF

1.5

μs

Blanking Time

(Note 5)

10

16.3

22.6

ms

Retry Time

MAX4995A/MAX4995AF/MAX4995AL (Note 5)

320

723.2

ms

THERMAL PROTECTION

Thermal Shutdown

+150

°C

Thermal-Shutdown Hysteresis

15

°C

10%

90%

10%

90%