MAX6381
MAX6381
PRODUCTIONSC70/µDFN, Single/Dual Low-Voltage, Low-Power µP Reset Circuits
- Part Models
- 39
- 1ku List Price
- Starting From $1.55
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Overview
- Factory-Set Reset Threshold Voltages Ranging from +1.58V to +4.63V in Approximately 100mV Increments
- ±2.5% Reset Threshold Accuracy Over Temperature (-40°C to +125°C)
- Seven Reset Timeout Periods Available: 1ms, 20ms, 140ms, 280ms, 560ms, 1120ms, 1200ms (min)
- 3 Reset Output Options
- Active-Low Push-Pull
- Active-High Push-Pull
- Active-Low Open-Drain
- Reset Output State Guaranteed Valid Down to VCC = 1V
- Manual Reset Input (MAX6384/MAX6385/MAX6386)
- Auxiliary RESET IN (MAX6387/MAX6388/MAX6389)
- VCC Reset Timeout (1120ms or 1200ms)/Manual Reset Timeout (140ms or 150ms) (MAX6390)
- Negative-Going VCC Transient Immunity
- Low Power Consumption of 6µA at +3.6V and 3µA at +1.8V
- Pin Compatible with MAX809/MAX810/MAX803/MAX6326/MAX6327/MAX6328/MAX6346/MAX6347/MAX6348, and MAX6711/MAX6712/MAX6713
- Tiny 3-Pin/4-Pin SC70 and 6-Pin µDFN Packages
- AEC-Q100 Qualified, Refer to Ordering Information for the Specific /V Trim Version
The MAX6381–MAX6390 microprocessor (µP) supervisory circuits monitor power-supply voltages from +1.8V to +5.0V while consuming only 3µA of supply current at +1.8V. Whenever VCC falls below the factory-set reset thresholds, the reset output asserts and remains asserted for a minimum reset timeout period after VCC rises above the reset threshold. Reset thresholds are available from +1.58V to +4.63V, in approximately 100mV increments. Seven minimum reset timeout delays ranging from 1ms to 1200ms are available.
The MAX6381/MAX6384/MAX6387 have a push-pull active-low reset output. The MAX6382/MAX6385/MAX6388 have a push-pull active-high reset output, and the MAX6383/MAX6386/MAX6389/MAX6390 have an open-drain active-low reset output. The MAX6384/MAX6385/MAX6386 also feature a debounced manual reset input (with internal pullup resistor). The MAX6387/MAX6388/MAX6389 have an auxiliary input for monitoring a second voltage. The MAX6390 offers a manual reset input with a longer VCC reset timeout period (1120ms or 1200ms) and a shorter manual reset timeout (140ms or 150ms).
The MAX6381/MAX6382/MAX6383 are available in 3-pin SC70 and 6-pin µDFN packages and the MAX6384–MAX6390 are available in 4-pin SC70 and 6-pin µDFN packages.
Applications
- Computers
- Controllers
- Critical µP and µC Power Monitoring
- Dual Voltage Systems
- Intelligent Instruments
- Portable Battery-Powered Equipment
Documentation
Data Sheet 1
Design Note 2
Technical Articles 4
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Apr 20, 2026 - 2571D PIN/ERRATA |
||
| MAX6381LT29D3+T | PRODUCTION | |
|
Jul 21, 2020 - 2072 MECHANICAL DATASHEET |
||
| MAX6381XR16D3+ | PRODUCTION | |
| MAX6381XR16D3+T | PRODUCTION | |
| MAX6381XR18D2+ | PRODUCTION | |
| MAX6381XR18D2+T | PRODUCTION | |
| MAX6381XR22D3+ | ||
| MAX6381XR22D3+T | ||
| MAX6381XR23D3+T | PRODUCTION | |
| MAX6381XR24D2+ | PRODUCTION | |
| MAX6381XR24D2+T | PRODUCTION | |
| MAX6381XR26D2+ | PRODUCTION | |
| MAX6381XR26D2+T | PRODUCTION | |
| MAX6381XR26D3+ | PRODUCTION | |
| MAX6381XR26D3+T | PRODUCTION | |
| MAX6381XR26D3/V+T | PRODUCTION | |
| MAX6381XR28D2+ | PRODUCTION | |
| MAX6381XR28D2+T | PRODUCTION | |
| MAX6381XR29D2+ | PRODUCTION | |
| MAX6381XR29D2+T | PRODUCTION | |
| MAX6381XR29D3+ | PRODUCTION | |
| MAX6381XR29D3+T | PRODUCTION | |
| MAX6381XR29D4+T | ||
| MAX6381XR30D2+ | PRODUCTION | |
| MAX6381XR30D2+T | PRODUCTION | |
| MAX6381XR31D3+ | PRODUCTION | |
| MAX6381XR31D3+T | PRODUCTION | |
| MAX6381XR46D2+ | PRODUCTION | |
| MAX6381XR46D2+T | PRODUCTION | |
| MAX6381XR46D2/V+T | PRODUCTION | |
| MAX6381XR46D3+ | PRODUCTION | |
| MAX6381XR46D3+T | PRODUCTION | |
|
Apr 15, 2020 - 2038N ASSEMBLY |
||
| MAX6381XR24D2+ | PRODUCTION | |
| MAX6381XR24D2+T | PRODUCTION | |
| MAX6381XR26D2+ | PRODUCTION | |
| MAX6381XR26D2+T | PRODUCTION | |
| MAX6381XR29D2+ | PRODUCTION | |
| MAX6381XR29D2+T | PRODUCTION | |
| MAX6381XR29D4+T | ||
| MAX6381XR30D2+ | PRODUCTION | |
| MAX6381XR30D2+T | PRODUCTION | |
| MAX6381XR31D3+ | PRODUCTION | |
| MAX6381XR31D3+T | PRODUCTION | |
|
Apr 20, 2026 - 2571 PIN/ERRATA |
||
| MAX6381XR26D2+T | PRODUCTION | |
| MAX6381XR29D2+T | PRODUCTION | |
| MAX6381XR29D3+T | PRODUCTION | |
| MAX6381XR30D2+T | PRODUCTION | |
| MAX6381XR31D3+T | PRODUCTION | |
| MAX6381XR46D2+T | PRODUCTION | |
|
Apr 16, 2020 - 2038A ASSEMBLY |
||
| MAX6381XR29D3+T | PRODUCTION | |
| MAX6381XR46D2+T | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
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| Parts | Product Life Cycle | Description |
|---|---|---|
| Supervisory Circuits & Reset ICs 28 | ||
| MAX6316 | PRODUCTION | 5-Pin µP Supervisory Circuits with Watchdog and Manual Reset |
| MAX6317 | PRODUCTION | 5-Pin µP Supervisory Circuits with Watchdog and Manual Reset |
| MAX6318 | PRODUCTION | 5-Pin µP Supervisory Circuits with Watchdog and Manual Reset |
| MAX6319 | PRODUCTION | 5-Pin µP Supervisory Circuits with Watchdog and Manual Reset |
| MAX6320 | PRODUCTION | 5-Pin µP Supervisory Circuits with Watchdog and Manual Reset |
| MAX6321 | PRODUCTION | 5-Pin µP Supervisory Circuits with Watchdog and Manual Reset |
| MAX6322 | PRODUCTION | 5-Pin µP Supervisory Circuits with Watchdog and Manual Reset |
| MAX6305 | PRODUCTION | 5-Pin, Multiple-Input, Programmable Reset ICs |
| MAX6306 | PRODUCTION | 5-Pin, Multiple-Input, Programmable Reset ICs |
| MAX6307 | PRODUCTION | 5-Pin, Multiple-Input, Programmable Reset ICs |
| MAX6308 | PRODUCTION | 5-Pin, Multiple-Input, Programmable Reset ICs |
| MAX6309 | PRODUCTION | 5-Pin, Multiple-Input, Programmable Reset ICs |
| MAX6310 | Obsolete | 5-Pin, Multiple-Input, Programmable Reset ICs |
| MAX6311 | Obsolete | 5-Pin, Multiple-Input, Programmable Reset ICs |
| MAX6312 | Obsolete | 5-Pin, Multiple-Input, Programmable Reset ICs |
| MAX6313 | 5-Pin, Multiple-Input, Programmable Reset ICs | |
| MAX6335 | PRODUCTION | 4-Pin, Ultra Low-Voltage, Low-Power µP Reset Circuits with Manual Reset |
| MAX6336 | PRODUCTION | 4-Pin, Ultra Low-Voltage, Low-Power µP Reset Circuits with Manual Reset |
| MAX6337 | PRODUCTION | 4-Pin, Ultra Low-Voltage, Low-Power µP Reset Circuits with Manual Reset |
| MAX6326 | PRODUCTION | 3-Pin, Ultra-Low-Power SC70/SOT µP Reset Circuits |
| MAX6327 | PRODUCTION | 3-Pin, Ultra-Low-Power SC70/SOT µP Reset Circuits |
| MAX6328 | PRODUCTION | 3-Pin, Ultra-Low-Power SC70/SOT µP Reset Circuits |
| MAX6346 | PRODUCTION | 3-Pin, Ultra-Low-Power SC70/SOT µP Reset Circuits |
| MAX6347 | PRODUCTION | 3-Pin, Ultra-Low-Power SC70/SOT µP Reset Circuits |
| MAX6348 | PRODUCTION | 3-Pin, Ultra-Low-Power SC70/SOT µP Reset Circuits |
| MAX6332 | Obsolete | 3-Pin, Ultra-Low-Voltage, Low-Power µP Reset Circuits |
| MAX6333 | PRODUCTION | 3-Pin, Ultra-Low-Voltage, Low-Power µP Reset Circuits |
| MAX6334 | PRODUCTION | 3-Pin, Ultra-Low-Voltage, Low-Power µP Reset Circuits |
Tools & Simulations
IBIS Model 1
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