250mA to 1.5A, Adjustable

Current-Limit Switches

_______________________________________________________________________________________

3

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

1

ms

Turn-Off Time

250

μs

Current-Limit Reaction Time

to 563.12k ,

output high and then short-circuit applied

3

μs

Blanking Time

(Note 3)

10

14.5

25

ms

Retry Time

MAX14523A/MAX14523AL (Note 3)

320

875

ms

THERMAL PROTECTION

Thermal Shutdown

Low-to-high

+170

°C

Thermal Shutdown Hysteresis

15

°C

ELECTRICAL CHARACTERISTICS (continued)

Note 2: All devices are 100% tested at 125°C. Electrical limits across the full temperature range are guaranteed by design and correlation.

Note 3: 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

ON(ON)*

*( ) THE POLARITY OF THE SIGNAL IS REVERSED FOR THE MAX14523AL ONLY.