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Maxim > Products > Supervisors, Voltage Monitors, Sequencers > MAX6381, MAX6382, MAX6383, ...

MAX6381, MAX6382, MAX6383, MAX6384, MAX6385, MAX6386, MAX6387, MAX6388, MAX6389, MAX6390

SC70/µDFN, Single/Dual Low-Voltage, Low-Power µP Reset Circuits

Overview

Technical Documents

Ordering Info

Status

Active: In Production.

Description

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 V_CC falls below the factory-set reset thresholds, the reset output asserts and remains asserted for a minimum reset timeout period after V_CC 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 V_CC 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.

Data Sheet

Download	Rev 4	(PDF, 232kB)
E-Mail

Key Features

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 V_CC = 1V
Manual Reset Input (MAX6384/MAX6385/MAX6386)
Auxiliary RESET IN (MAX6387/MAX6388/MAX6389)
V_CC Reset Timeout (1120ms or 1200ms)/Manual Reset Timeout (140ms or 150ms) (MAX6390)
Negative-Going V_CC 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

Applications/Uses

Computers
Controllers
Critical µP and µC Power Monitoring
Dual Voltage Systems
Intelligent Instruments
Portable Battery-Powered Equipment

Key Specifications:

Pushbutton Devices

Part Number

Monitored Voltages

Manual Reset Feature

MR1 Setup Time

Reset Thresh.
(V)

Reset Out

t_RESET

Reset Thresh. Accur.
(%)

I_CC
(µA)

Package/Pins

Budgetary Price

min

@ +25°C

max

See Notes

MAX6390

Single Soft/Hard Reset Output

1µs

1.2 to 1.79

1.8 to 2.49

2.5 to 3.29

3.3 to 4.99

Active Low

Open Drain

>1s

1.5

µDFN/6

SC70/4

$1.00 @1k

See All Pushbutton Devices (17)

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.

Supervisors (1 Monitored Voltage)

Part Number

Reset Thresh.
(V)

Reset Out

t_RESET

Watchdog Feature

Supervisor Features

Reset Thresh. Accur.
(%)

I_CC
(µA)

Budgetary Price

min

@ +25°C

max

See Notes

MAX6381

1.2 to 1.8

1.8 to 2.5

2.5 to 3.3

3.3 to 5.5

Active Low

Push-Pull

1ms to 15ms

15ms to 85ms

85ms to 300ms

300ms to 1s

>1s

No Watchdog

1.5

$1.00 @1k

MAX6382

Active High

Push-Pull

$1.00 @1k

MAX6383

Active Low

Open Drain

$0.98 @1k

MAX6384

Active Low

Push-Pull

Manual Reset

$1.00 @1k

MAX6385

Active High

Push-Pull

Manual Reset

$1.00 @1k

MAX6386

Active Low

Open Drain

Manual Reset

$1.00 @1k

See All Supervisors (1 Monitored Voltage) (274)

Supervisors (2 Monitored Voltages)

Part Number

Interface

Reset Thresh.
(V)

Reset Out

t_RESET

Watchdog Feature

Supervisor Features

Reset Thresh. Accur.
(%)

I_CC
(µA)

Budgetary Price

min

@ +25°C

max

See Notes

MAX6387

Factory Fixed

R/C Adjustable

1.2 to 1.8

1.8 to 2.5

2.5 to 3.3

3.3 to 5.5

Active Low

Push-Pull

1ms to 15ms

15ms to 85ms

85ms to 300ms

300ms to 1s

>1s

No Watchdog

Adjustable Reset Input

Manual Reset

1.5

$1.00 @1k

MAX6388

Active High

Push-Pull

Adjustable Reset Input

$1.00 @1k

MAX6389

Active Low

Open Drain

Adjustable Reset Input

$1.00 @1k

See All Supervisors (2 Monitored Voltages) (84)

Diagram

Typical Operating Circuit

Application Notes

Tutorial 720		Keep the Product Working—Microprocessor Supervisors Offer Big Insurance in Small Packages
Application Note 1136		Switching Between Battery and External Power Sources
Application Note 1195		Maximize Battery Life and Minimize Replacements
Application Note 1837		One-Shot Timing Improves Microprocessor Reset Circuit
Application Note 1858		Tiny IC Debounces Pushbutton Switch
Application Note 3227		Power-On Reset and Related Supervisory Functions
Application Note 4511		Adjustable Hysteresis in Microprocessor-Reset ICs
Tutorial 4671		Improve Sensor Performance and SNR in Pulse Oximeter Designs
Tutorial 4691		Introduction to Hearing Aids and Important Design Considerations

Product Guides

Microprocessor Supervisory (PDF)

Reliability Reports

Reliability Report:	MAX6381.pdf MAX6382.pdf MAX6383.pdf MAX6384.pdf MAX6386.pdf MAX6389.pdf
Show FIT data for:
Request Reliability Report for:

Software/Models

MAX6381 IBIS Model

MAX6384 IBIS Model

Ordering Information

Filters:

Part Number:

Package:

Temperature:

Tape and Reel

Sample

Devices: 1-50 / 6135

<-- Previous 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Next -->

Part Number	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX6381LT16D1+T			Active	µDFN;6 pin;1.6 mm² Outline Drawing:21-0147 (PDF) Land Pattern: 90-0080 (PDF) Use pkgcode/variation: L611+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX6381LT16D2+T			Active	µDFN;6 pin;1.6 mm² Outline Drawing:21-0147 (PDF) Land Pattern: 90-0080 (PDF) Use pkgcode/variation: L611+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX6381LT16D3+T			Active	µDFN;6 pin;1.6 mm² Outline Drawing:21-0147 (PDF) Land Pattern: 90-0080 (PDF) Use pkgcode/variation: L611+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX6381LT16D4+T			Active	µDFN;6 pin;1.6 mm² Outline Drawing:21-0147 (PDF) Land Pattern: 90-0080 (PDF) Use pkgcode/variation: L611+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX6381LT16D5+T			Active	uDFN; Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX6381LT16D6+T			Active	uDFN; Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX6381LT16D7+T			Active	uDFN; Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX6381LT17D1+T			Active	µDFN;6 pin;1.6 mm² Outline Drawing:21-0147 (PDF) Land Pattern: 90-0080 (PDF) Use pkgcode/variation: L611+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX6381LT17D2+T			Active	µDFN;6 pin;1.6 mm² Outline Drawing:21-0147 (PDF) Land Pattern: 90-0080 (PDF) Use pkgcode/variation: L611+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX6381LT17D3+T			Active	µDFN;6 pin;1.6 mm² Outline Drawing:21-0147 (PDF) Land Pattern: 90-0080 (PDF) Use pkgcode/variation: L611+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
Part Number	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX6381LT17D4+T			Active	µDFN;6 pin;1.6 mm² Outline Drawing:21-0147 (PDF) Land Pattern: 90-0080 (PDF) Use pkgcode/variation: L611+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX6381LT17D5+T			Active	uDFN; Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX6381LT17D6+T			Active	uDFN; Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX6381LT17D7+T			Active	uDFN; Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX6381LT18D1+T			Active	uDFN; Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX6381LT18D2+T			Active	µDFN;6 pin;1.6 mm² Outline Drawing:21-0147 (PDF) Land Pattern: 90-0080 (PDF) Use pkgcode/variation: L611+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX6381LT18D3+T			Active	µDFN;6 pin;1.6 mm² Outline Drawing:21-0147 (PDF) Land Pattern: 90-0080 (PDF) Use pkgcode/variation: L611+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX6381LT18D4+T			Active	µDFN;6 pin;1.6 mm² Outline Drawing:21-0147 (PDF) Land Pattern: 90-0080 (PDF) Use pkgcode/variation: L611+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX6381LT18D5+T			Active	uDFN; Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX6381LT18D6+T			Active	uDFN; Land Pattern: Not Available	-40°C to +85°C	See data sheet
Part Number	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX6381LT18D7+T			Active	uDFN; Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX6381LT19D1+T			Active	uDFN; Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX6381LT19D2+T			Active	uDFN; Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX6381LT19D3+T			Active	uDFN; Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX6381LT19D4+T			Active	uDFN; Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX6381LT19D5+T			Active	uDFN; Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX6381LT19D6+T			Active	uDFN; Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX6381LT19D7+T			Active	uDFN; Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX6381LT20D1+T			Active	uDFN; Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX6381LT20D2+T			Active	uDFN; Land Pattern: Not Available	-40°C to +85°C	See data sheet
Part Number	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX6381LT20D3+T			Active	uDFN; Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX6381LT20D4+T			Active	uDFN; Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX6381LT20D5+T			Active	uDFN; Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX6381LT20D6+T			Active	uDFN; Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX6381LT20D7+T			Active	uDFN; Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX6381LT21D1+T			Active	uDFN; Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX6381LT21D2+T			Active	uDFN; Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX6381LT21D3+T			Active	uDFN; Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX6381LT21D4+T			Active	uDFN; Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX6381LT21D5+T			Active	uDFN; Land Pattern: Not Available	-40°C to +85°C	See data sheet
Part Number	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX6381LT21D6+T			Active	uDFN; Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX6381LT21D7+T			Active	uDFN; Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX6381LT22D1+T			Active	µDFN;6 pin;1.6 mm² Outline Drawing:21-0147 (PDF) Land Pattern: 90-0080 (PDF) Use pkgcode/variation: L611+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX6381LT22D2+T			Active	µDFN;6 pin;1.6 mm² Outline Drawing:21-0147 (PDF) Land Pattern: 90-0080 (PDF) Use pkgcode/variation: L611+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX6381LT22D3+			Active	µDFN;6 pin;1.6 mm² Outline Drawing:21-0147 (PDF) Land Pattern: 90-0080 (PDF) Use pkgcode/variation: L611+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX6381LT22D3+T			Active	µDFN;6 pin;1.6 mm² Outline Drawing:21-0147 (PDF) Land Pattern: 90-0080 (PDF) Use pkgcode/variation: L611+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX6381LT22D4+T			Active	µDFN;6 pin;1.6 mm² Outline Drawing:21-0147 (PDF) Land Pattern: 90-0080 (PDF) Use pkgcode/variation: L611+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX6381LT22D5+T			Active	uDFN; Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX6381LT22D6+T			Active	uDFN; Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX6381LT22D7+T			Active	uDFN; Land Pattern: Not Available	-40°C to +85°C	See data sheet

Devices: 1-50 / 6135

<-- Previous 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Next -->

Notes:

Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt; -D = drypack; -U/+U on DS parts = cut tape. More: See Full Data Sheet or Maxim Product Naming Conventions.
* Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.

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[ 2000-11-22 ]

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Information Index

Overview		Technical Documents		Ordering Info		Related Products
Description Key Features Applications/Uses Key Specifications Diagram Notes and Comments		Data Sheet Application Notes Evaluation Kits Product Guides Reliability Reports Software/Models		Price and Availability Samples Buy Online Package Information Lead-Free Information		Similar Products by Function Similar Products by Application Evaluation Kits Products with Similar Part Numbers Products Used With This

Document Ref.: 19-1839 Rev 4; 2007-05-10
This page last modified: 2009-10-26

SC70/µDFN, Single/Dual Low-Voltage, Low-Power µP Reset Circuits

Status

Description

Data Sheet

Key Features

Applications/Uses

Key Specifications:

Diagram

Application Notes

Product Guides

Reliability Reports

Software/Models

Ordering Information

Similar Products by Function

Similar Products by Application

More Information

Didn't Find What You Need?

Information Index

Overview

Technical Documents

Ordering Info

Related Products