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Maxim > Solutions > Instrumentation Cluster

Supervisor

Challenges: Issue reset signal independently. Low supply current in key-off. Many Maxim power supplies listed here also offer supervisory functions.

DATA SHEETS
Display Title/Parts Key Advantages
QV  PDF High-Voltage, Micropower, Single/Dual Linear Regulators with Supervisory Functions
MAX6791, MAX6792, MAX6793, MAX6794, MAX6795, MAX6796

Automotive Linear Regulators with Supervisory Features
QV  PDF Low-Power, SC70/SOT µP Reset Circuits with Capacitor-Adjustable Reset Timeout Delay
MAX6340, MAX6421, MAX6422, MAX6423, MAX6424, MAX6425, MAX6426
QV  PDF µP Supervisory Circuits with Windowed (Min/Max) Watchdog and Manual Reset
MAX6323, MAX6324

Industry's-First µP Supervisory with Windowed Watchdog and Manual Reset



Key Specifications:  Linear Regulators
Part Number Regulators VIN
(V)		 VIN
(V)		 Preset VOUT
(V)		 Adj. VOUT
(V)		 Adj. VOUT
(V)		 VDROPOUT @Rated ILOAD
(V)		 Rated ILOAD
(mA)		 ICC
(µA)		 Low Batt./ Pwr. Fail Out POK/Reset Thresh.
(V)		 Watchdog Reverse Batt. Protect. Package/Pins Smallest Available Pckg.
(mm2)		 Oper. Temp.
(°C)
min max min max typ max nom max w/pins
MAX6791  2 5 72
1.8
2.5
3.3
5
 1.8 11 1 150 85 Yes
Vout-12.5%
Vout-7.5%
 Yes Yes
TQFN/20
 26 -40 to +125
MAX6792  2 1 150
TQFN/20
MAX6793  2 1 150
TQFN/20
MAX6794  2 1 150
TQFN/20
MAX6795  1 1.2 300
TQFN/20
MAX6796  1 1.2 300
TQFN/20
See All Linear Regulators (153)

Key Specifications:  Supervisors (1 Monitored Voltage)
Part Number Reset Thresh.
(V)		 Reset Out Reset Out tRESET Watchdog Feature Watchdog Timeout Supervisor Features Reset Thresh. Accur.
(%)		 ICC
(µA)
Active Low Active High min @ +25°C max
MAX6340 
1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5
 Open Drain -
1ms to 15ms
15ms to 85ms
85ms to 300ms
300ms to 1s
<1ms
>1s
Adjustable
 No Watchdog - - 1.5 2.5
MAX6421 
1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5
 Push-Pull -
1ms to 15ms
15ms to 85ms
85ms to 300ms
300ms to 1s
<1ms
>1s
Adjustable
 No Watchdog - - 2.5
MAX6422 
1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5
 - Push-Pull
1ms to 15ms
15ms to 85ms
85ms to 300ms
300ms to 1s
<1ms
>1s
Adjustable
 No Watchdog - - 2.5
MAX6423 
1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5
 Open Drain -
1ms to 15ms
15ms to 85ms
85ms to 300ms
300ms to 1s
<1ms
>1s
Adjustable
 No Watchdog - - 2.5
MAX6424 
1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5
 Push-Pull -
1ms to 15ms
15ms to 85ms
85ms to 300ms
300ms to 1s
<1ms
>1s
Adjustable
 No Watchdog - - 2.5
MAX6425 
1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5
 Open Drain -
1ms to 15ms
15ms to 85ms
85ms to 300ms
300ms to 1s
<1ms
>1s
Adjustable
 No Watchdog - - 2.5
MAX6426 
1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5
 Open Drain -
1ms to 15ms
15ms to 85ms
85ms to 300ms
300ms to 1s
<1ms
>1s
Adjustable
 No Watchdog - - 2.5
MAX6323 
2.5 to 3.3
3.3 to 5.5
 Push-Pull - 85ms to 300ms
Input/Output (WDI/WDO)
Windowed
1s to 2s
<1s
>2s
Adjustable
 Manual Reset 45
MAX6324 
2.5 to 3.3
3.3 to 5.5
 Open Drain - 85ms to 300ms
Input/Output (WDI/WDO)
Windowed
1s to 2s
<1s
>2s
Adjustable
 Manual Reset 45
See All Supervisors (1 Monitored Voltage) (274)



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