MAX6765–MAX6774
Automotive Micropower Linear Regulators
with Supervisor
4
Maxim Integrated
ELECTRICAL CHARACTERISTICS (continued)
(V
IN
= 14V, C
IN
= 0.1µF, C
OUT
= 10µF, T
A
= T
J
= -40°C to +125°C, unless otherwise noted. Typical values are at T
A
= T
J
= +25°C.)
(Note 1)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
L/T/Z/W, SET = resistive divider, RESET
falling
V
OUT
x
0.9
V
OUT
x
0.925
V
OUT
x
0.950
RESET Threshold (Adjustable
Output Voltage)
M/S/Y/V, SET = resistive divider, RESET
falling
V
OUT
x
0.85
V
OUT
x
0.875
V
OUT
x
0.900
V
RESETIN Input Current V
RESETIN
= V
GND
or 12V -100 +100 nA
V
TH
= 87.5% of V
SET
(M/S/Y/V),
RESET falling
1.057 1.085 1.112
RESETIN Threshold
V
TH
= 92.5% of V
SET
(L/T/Z/W),
RESET falling
1.118 1.147 1.176
V
OUT to RESET Delay V
OUT
falling 0.3 µs
RESETIN To RESET Delay RESETIN falling 35 µs
D0 75 µs
D1 2.187 3.125 4.063
D2 8.75 12.5 16.25
D3 35 50 65
RESET Timeout Period (TIMEOUT
Connected to OUT)
V
OUT
rising
D4 140 200 260
ms
TIMEOUT Ramp Current 800 1000 1200 nA
L/M/T/S options 1.160 1.220 1.259
TIMEOUT Ramp Threshold
V/W/Y/Z options 1.060 1.170 1.242
V
V
OUT
≥ 1.8V, I
SINK
= 50µA,
RESET asserted
0.3
RESET Output-Voltage Low
(Open Drain or Push-Pull)
V
OL
V
OUT
≥ 1.8V, I
SINK
= 3.2mA,
RESET asserted
0.4
V
RESET Output-Voltage High
(Push-Pull)
V
OH
V
OUT
≥ 1.8V, I
SOURCE
= 250µA,
RESET not asserted
0.8 x
V
OUT
V
RESET Open-Drain Leakage
Current
RESET not asserted, RESET = 12V 100 nA
Watchdog Minimum Input Pulse t
WDI
1.8V ≤ V
OUT
≤ 11V 1 µs
Watchdog Input Low Voltage V
IL
1.8V ≤ V
OUT
≤ 11V 0.4 V
Watchdog Input High Voltage V
IH
1.8V ≤ V
OUT
≤ 11V
V
OUT
- 0.4V
V
Watchdog Input Low Voltage V
IL
1.8V ≤ V
OUT
≤ 11V 0.4 V
Watchdog Input Current I
WDI
V
WDI
= 0V or V
WDI
= 12V -1 +1 µA
MAX6773/MAX6774 1.12 1.6 2.08 s
Watchdog Timeout Period t
WD
MAX6773B/MAX6774B 40 50 60 ms
Note 1: Production tested at T
A
= +25°C. Overtemperature limits are guaranteed by design.
Note 2: Device tested at internally set voltage.
Note 3: Dropout voltage for L/M versions is defined as (V
IN
- V
OUT
) when V
OUT
equals 98% of the nominal value of V
OUT
when
V
IN
= 11V. For T/S versions, dropout voltage is defined as (V
IN
- V
OUT
) when V
OUT
equals 98% of the nominal value of V
OUT
when V
IN
= 9.3V.
Note 4: Observe the absolute maximum power dissipation limits.
