Datasheet

MAX16126/MAX16127
Load-Dump/Reverse-Voltage Protection Circuits
3Maxim Integrated
Note 2: All parameters are production tested at T
A
= +25NC. Limits over the operating temperature range are guaranteed by
design.
Note 3: The MAX16126/MAX16127 power up with the external MOSFETs in off mode (V
GATE
= V
SRC
). The external MOSFETs turn
on t
START
after the IC is powered up and all input conditions are valid.
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
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
OVSET to GATE Propagation Delay t
OVG
V
OVSET
rising (V
TH
- 100mV to
V
TH
+ 100mV)
0.55 Fs
UVSET to GATE Propagation Delay t
UVG
V
UVSET
falling (V
TH
+ 100mV to
V
TH
- 100mV)
20 Fs
Output Input Resistance to GND R
OUT
MAX16126 4
MI
MAX16127 2
OVSET to FLAG Propagation Delay t
OV
V
OVSET
rising (V
TH
- 100mV to
V
TH
+ 100mV)
0.3 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
SHDN Input Pulse Width t
PW
6 Fs
SHDN Input Pulldown Current I
SPD
0.8 1.2 FA
FLAG Output Voltage Low V
OL
FLAG sinking 1mA 0.4 V
FLAG Leakage Current I
IL
V
FLAG
= 12V 0.5 FA