MAX836, MAX837
4-Pin Micropower Voltage Monitors
Low-Power SOT Voltage Monitors
Status
Active: In Production.
Description
The MAX836/MAX837 micropower voltage monitors contain a 1.204V precision bandgap reference and a comparator in a SOT143 package. The MAX836 has an open-drain, N-channel output driver, while the MAX837 has a push-pull output driver. Two external resistors set the trip threshold voltage.
Key Features
Applications/Uses
±1.25% Precision Voltage Threshold
SOT143 Package
Low Cost
< 5µA Typical Supply Current
Open-Drain Output (MAX836)
Battery-Powered Systems Load Switching Precision Battery Monitoring Threshold Detectors
Key Specifications: Supervisors (1 Monitored Voltage)
Part Number
Reset Thresh.
Reset Out
tRESET
Watchdog Feature
Supervisor Features
Reset Thresh. Accur.
ICC
Price
Active Low
min
@ +25°C
max
See Notes
MAX836 1.2 to 1.8 1.8 to 2.5 2.5 to 3.3 3.3 to 5.5
Open Drain
<1ms
No Watchdog
Adjustable Reset Input High Voltage (>6V)
1.5
15
$0.90 @1k
MAX837 Push-Pull
$0.90 @1k
See All Supervisors (1 Monitored Voltage) (274)
Diagram
Typical Operating Circuit
Didn't Find What You Need?
Document Ref.: 19-1137;
Rev 3;
2008-06-09
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