MAX14523A Maxim, MAX14523A Datasheet - Page 3

• Manufacturer Part Number: MAX14523A
• Description: The MAX14523A/MAX14523AL/MAX14523B/MAX14523C programmable current-limit switches feature internal current limiting to prevent damage to host devices due to faulty load conditions
• Manufacturer: Maxim

ELECTRICAL CHARACTERISTICS (continued)
(V
are at V
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
Figure 1. Timing Diagram for Measuring Turn-On Time (t
DYNAMIC
Turn-On Time
Turn-Off Time
Current-Limit Reaction Time
Blanking Time
Retry Time
THERMAL PROTECTION
Thermal Shutdown
Thermal Shutdown Hysteresis
IN
= +1.7V to +5.5V, R
Output Logic-Low Voltage
Output Leakage Current
OUTPUT
IN
*( ) THE POLARITY OF THE SIGNAL IS REVERSED FOR THE MAX14523AL ONLY.
See Figures 2 and 3.
= +3.3V, T
PARAMETER
ON(ON)*
V
OUT
A
_______________________________________________________________________________________
= +25°C.) (Note 2)
SETI
= 94.2kΩ, C
SYMBOL
t
t
BLANK
RETRY
t
t
t
OFF
LIM
SS
IN
= C
t
SS
OUT
I
V
Time from ENABLE signal to V
of V
Time from DISABLE signal to V
of V
V
output high and then short-circuit applied
(Note 3)
MAX14523A/MAX14523AL (Note 3)
Low-to-high
SINK
IN
IN
= 1µF, and T
= V
IN
IN
= 3.3V, R
= 1mA
= 3.3V, Figure 1
= 3.3V, R
SS
) and Turn-Off Time (t
250mA to 1.5A, Adjustable
90% V
= 5.5V,
SETI
CONDITIONS
L
IN
A
= 20 , Figure 1
= 91.78k
= T
Current-Limit Switches
J
= -40°C to +125°C, unless otherwise noted. Typical values
deasserted
to 563.12k ,
OFF
OUT
OUT
)
= 90%
= 10%
MIN
320
10
t
t
BLANK
RETRY
t
OFF
+170
TYP
14.5
250
15
is a constant value of 32.
1
3
10% V
MAX
875
0.4
25
IN
1
UNITS
ms
ms
ms
μA
μs
μs
°C
°C
V
3