Datasheet

3Maxim Integrated
MAX16128/MAX16129
Load-Dump/Reverse-Voltage Protection Circuits
ELECTRICAL CHARACTERISTICS (continued)
(V
IN
= 12V, C
GATE-SOURCE
= 1nF, T
A
= -40NC to +125NC, unless otherwise noted. Typical values are at T
A
= +25NC.) (Note 2)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Internal Cold-Crank Threshold V
CCK
V
IN
falling
0.97 x
V
CCK
V
CCK
1.03 x
V
CCK
V
Internal Cold-Crank Threshold Hysteresis V
CCK_HYS
0.05 x
V
CCK
V
OUT Input Resistance to Ground R
OUT
MAX16128 4
MI
MAX16129 2
POK Threshold Rising V
POK+
0.9 x V
IN
V
POK Threshold Falling V
POK-
0.87 x
V
IN
V
Startup Response Time t
START
(Note 3) 150 Fs
Autoretry Timeout t
RETRY
150 ms
GATE Rise Time t
RISE
V
GATE
rising (GND to V
SRC
+ 8V) 1 ms
Overvoltage-to-GATE Propagation Delay t
OVG
V
IN
rising (MAX16128) from
(0.9 x V
OV_TH
) to (1.1 x V
OV_TH
),
V
OUT
rising (MAX16129) from
(0.9 x V
OV_TH
) to (1.1 x V
OV_TH
)
1 Fs
Undervoltage-to-GATE Propagation
Delay
t
UVG
V
IN
falling from (1.1 x V
UV_TH
) to
(0.9 x V
UV_TH
)
21 Fs
Overvoltage to FLAG Propagation Delay t
OV
V
IN
rising (MAX16128) from
(0.9 x V
OV_TH
) to (1.1 x V
OV_TH
)
V
OUT
rising (MAX16129) from
(0.9 x V
OV_TH
) to (1.1 x V
OV_TH
)
1 Fs
GATE Output Voltage High Above V
SRC
V
GS
V
IN
= V
SRC
= V
OUT
= 3V,
I
GATE
= -1FA
5 5 5.5
V
V
IN
= V
SRC
= V
OUT
= 12V,
I
GATE
= -1FA
8 9 10
V
IN
= V
SRC
= V
OUT
= 24V,
I
GATE
= -1FA
7 8.5 10
V
IN
= V
SRC
= V
OUT
= 30V,
I
GATE
= -1FA
6.25 8 9.5
GATE Pulldown Current I
PD
V
GATE
= 12V 8.8 mA
GATE Charge-Pump Current I
GATE
V
IN
= V
GATE
= V
SRC
= 12V 180 FA
Thermal Shutdown T
+
+145 NC
Thermal-Shutdown Hysteresis δT 15 NC
SHDN Logic-High Input Voltage V
IH
1.4 V
SHDN Logic-Low Input Voltage V
IL
0.4 V