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MAX6351, MAX6352, MAX6353, MAX6354, MAX6355, MAX6356, MAX6357, MAX6358, MAX6359, MAX6360
Dual/Triple-Voltage µP Supervisory Circuits
Industry's-First Multiple Voltage Supervisors in SOT Package
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Status
Active: In Production.
Description
The MAX6351-MAX6360 microprocessor (µP) supervisors with multiple reset voltages significantly improve system reliability and accuracy compared to separate ICs or discrete components. If any input supply voltage drops below its associated preset threshold, all reset outputs are asserted. In addition, the outputs are valid as long as either input supply voltage remains greater than +1.0V.
All devices in this series have an active-low debounced manual reset input. In addition, the MAX6358/MAX6359/MAX6360 offer a watchdog-timer input with a 46.4s startup timeout period and a 2.9s timeout period. The MAX6355/MAX6356/MAX6357 offer an additional voltage monitor input to monitor a third voltage.
The MAX6351 features two active-low, push-pull reset outputs, one is referenced to VCC1 and the other is referenced to VCC2. The MAX6353/MAX6356/MAX6359 offer an active-low, push-pull reset output referenced to VCC1. The MAX6354/MAX6357/MAX6360 offer an active-low, push-pull reset output referenced to VCC2.
All these devices are offered with a wide variety of voltage threshold levels, as shown in the Voltage Threshold Levels table. They are available in 5- and 6-pin SOT23 packages and operate over the extended (-40°C to +85°C) temperature range.
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Data Sheet
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Key Features
- Precision Monitoring of Multiple +1.8V, +2.5V, +3.0V, +3.3V, and +5V Power-Supply Voltages
- Precision Factory-Set Power-Supply
Reset Thresholds
- 20µA Supply Current
- 100ms min Power-On Reset Pulse Width
- Debounced TTL/CMOS-Compatible
Manual-Reset Input
- Watchdog Timer
- 46.4s Startup Timeout
- 2.9s Normal Timeout
- Fully Guaranteed Over Temperature
- Guaranteed RESET-bar Valid to VCC1 = 1V or
VCC2 = 1V
- Power-Supply Transient Immunity
- No External Components for Dual-Voltage Systems
- Small 5- and 6-Pin SOT23 Packages
- Low Cost
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Applications/Uses
- Computers
- Controllers
- Intelligent Instruments
- Multivoltage Systems Equipment
- Portable Battery-Powered
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Key Specifications:
| Supervisors (2 Monitored Voltages) |
| Part Number |
Interface |
Reset Thresh.
(V) |
Reset Out |
tRESET |
Watchdog Feature |
Watchdog Timeout |
Supervisor Features |
Reset Thresh. Accur.
(%) |
ICC
(µA) |
Budgetary Price |
| min |
@ +25°C |
max |
See Notes |
| MAX6351 |
Factory Fixed |
| 1.2 to 1.8 | | 1.8 to 2.5 | | 2.5 to 3.3 | | 3.3 to 5.5 |
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85ms to 300ms |
No Watchdog |
- |
Manual Reset |
1.5 |
50 |
$1.44 @1k |
| MAX6352 |
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No Watchdog |
- |
$1.44 @1k |
| MAX6353 |
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No Watchdog |
- |
$1.38 @1k |
| MAX6354 |
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No Watchdog |
- |
$1.44 @1k |
| MAX6358 |
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| Extended Setup Period | | Input (WDI) |
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$1.44 @1k |
| MAX6359 |
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| Extended Setup Period | | Input (WDI) |
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$1.44 @1k |
| MAX6360 |
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| Extended Setup Period | | Input (WDI) |
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$1.44 @1k |
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See All Supervisors (2 Monitored Voltages) (84)
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Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.
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| Supervisors (3 Monitored Voltages) |
| Part Number |
Interface |
Reset Thresh.
(V) |
Reset Out |
tRESET |
Watchdog Feature |
Supervisor Features |
Reset Thresh. Accur.
(%) |
ICC
(µA) |
Budgetary Price |
| min |
@ +25°C |
max |
See Notes |
| MAX6355 |
| Factory Fixed | | R/C Adjustable |
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| 1.2 to 1.8 | | 1.8 to 2.5 | | 2.5 to 3.3 | | 3.3 to 5.5 |
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85ms to 300ms |
No Watchdog |
| Adjustable Reset Input | | Manual Reset |
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1.5 |
50 |
$1.43 @1k |
| MAX6356 |
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$1.44 @1k |
| MAX6357 |
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$1.44 @1k |
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See All Supervisors (3 Monitored Voltages) (32)
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Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.
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Diagram
Functional Diagram
Notes and Comments
Dual reset outputs (MAX6351)
Triple voltage supervisor (MAX6355-7)
Dual voltage supervisor and watchdog timer (MAX6358-60)
Open-drain RESET (MAX6352, 6355, 6358)
5V push-pull RESET (MAX6353, 6356, 6359)
3V push-pull RESET (MAX6354, 6357, 6360)
More Information
Didn't Find What You Need?
Information Index
Document Ref.: 19-1508
Rev 6;
2006-05-27
This page last modified: 2009-11-05
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