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MAX6412, MAX6413, MAX6414, MAX6415, MAX6416, MAX6417, MAX6418, MAX6419, MAX6420
Low-Power, Single/Dual-Voltage µP Reset Circuits with Capacitor-Adjustable Reset Timeout Delay
Small, Low-Power, Single/Dual Voltage µP Reset Circuits with Adjustable Reset Timeout Provides Flexibility
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Status
Active: In Production.
Description
The MAX6412–MAX6420 low-power microprocessor supervisor circuits monitor system voltages from 1.6V to 5V. These devices are designed to assert a reset signal whenever the VCC supply voltage or RESET IN falls below its reset threshold or the manual reset input is asserted. The reset output remains asserted for the reset timeout period after VCC and RESET IN rise above the reset threshold and the manual reset input is deasserted. The reset timeout is externally set by a capacitor to provide more flexibility.
The MAX6412/MAX6413/MAX6414 feature fixed thresholds from 1.575V to 5V in approximately 100mV increments and a manual reset input. The MAX6415/MAX6416/MAX6417 are offered with an adjustable reset input that can monitor voltages down to 1.26V and the MAX6418/MAX6419/MAX6420 are offered with one fixed input and one adjustable input to monitor dual-voltage systems.
The MAX6412/MAX6415/MAX6418 have an active-low, push-pull reset output. The MAX6413/MAX6416/MAX6419 have an active-high, push-pull reset output and the MAX6414/MAX6417/MAX6420 have an active-low, open-drain reset output. All of these devices are offered in a SOT23-5 package and are fully specified from -40°C to +125°C.
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Data Sheet
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Key Features
- Monitor System Voltages from 1.6V to 5V
- Capacitor-Adjustable Reset Timeout Period
- Manual Reset Input (MAX6412/MAX6413/MAX6414)
- Adjustable Reset Input Option (MAX6415–MAX6420)
- Dual-Voltage Monitoring (MAX6418/MAX6419/MAX6420)
- Low Quiescent Current (1.7µA, typ)
- 3 RESET Output Options
- Push-Pull Active-Low RESET
- Push-Pull RESET
- Open-Drain Active-Low RESET
- Guaranteed Reset Valid to VCC = 1V
- Power-Supply Transient Immunity
- Small SOT23-5 Packages
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Applications/Uses
- Automotive
- Battery-Powered Computers/Controllers
- Computers
- Critical µP Monitoring
- Embedded Controllers
- Intelligent Instruments
- Medical Equipment
- Portable Equipment
- Set-Top Boxes
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Key Specifications:
| Supervisors (1 Monitored Voltage) |
| Part Number |
Reset Thresh.
(V) |
Reset Out |
tRESET |
Watchdog Feature |
Supervisor Features |
Reset Thresh. Accur.
(%) |
ICC
(µA) |
Budgetary Price |
| min |
@ +25°C |
max |
See Notes |
| MAX6412 |
| 1.2 to 1.8 | | 1.8 to 2.5 | | 2.5 to 3.3 | | 3.3 to 5.5 |
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| 1ms to 15ms | | 15ms to 85ms | | 85ms to 300ms | | 300ms to 1s | | <1ms | | >1s | | Adjustable |
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No Watchdog |
Manual Reset |
1.5 |
2.5 |
$0.95 @1k |
| MAX6413 |
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Manual Reset |
1.5 |
$0.95 @1k |
| MAX6414 |
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Manual Reset |
1.5 |
$0.95 @1k |
| MAX6415 |
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Adjustable Reset Input |
4 |
$0.84 @1k |
| MAX6416 |
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Adjustable Reset Input |
4 |
$0.95 @1k |
| MAX6417 |
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Adjustable Reset Input |
4 |
$0.95 @1k |
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See All Supervisors (1 Monitored Voltage) (274)
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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 (2 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 |
| MAX6418 |
| 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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| 1ms to 15ms | | 15ms to 85ms | | 85ms to 300ms | | 300ms to 1s | | <1ms | | >1s | | Adjustable |
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No Watchdog |
Adjustable Reset Input |
1.5 |
2.5 |
$0.95 @1k |
| MAX6419 |
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$0.95 @1k |
| MAX6420 |
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$0.95 @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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Diagram
 Typical Operating Circuit
More Information
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Information Index
Document Ref.: 19-2336
Rev 4;
2011-02-24
This page last modified: 2011-02-24
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