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MAX6315

Open-Drain SOT µP Reset Circuit

Open-Drain Output SOT Reset IC with Customized Reset Thresholds and Timeout Delays

Overview

Technical Documents

Ordering Info

Status

Active: In Production.

Description

The MAX6315 low-power CMOS microprocessor (µP) supervisory circuit is designed to monitor power supplies in µP and digital systems. It provides excellent circuit reliability and low cost by eliminating external components and adjustments. The MAX6315 also provides a debounced manual reset input.

This device performs a single function: it asserts a reset signal whenever the V_CC supply voltage falls below a preset threshold or whenever manual reset is asserted. Reset remains asserted for an internally programmed interval (reset timeout period) after V_CC has risen above the reset threshold or manual reset is deasserted. The MAX6315's open-drain active-low RESET output can be pulled up to a voltage higher than V_CC.

The MAX6315 comes with factory-trimmed reset threshold voltages in 100mV increments from 2.5V to 5V. Preset timeout periods of 1ms, 20ms, 140ms, and 1120ms (minimum) are also available. The device comes in a SOT143 package.

For microcontrollers (µCs) and µPs with bidirectional reset pins, see the MAX6314 data sheet.

Data Sheet

Download	Rev 3	(PDF, 536kB)
E-Mail

Key Features

Small SOT143 Package
Open-Drain RESET-bar Output Can Exceed V_CC
Precision, Factory-Set V_CC Reset Thresholds: 100mV Increments from 2.5V to 5V
Four Reset Timeout Periods Available: 1ms, 20ms, 140ms, or 1120ms (minimum)
Immune to Short V_CC Transients
5µA Supply Current
Pin-Compatible with MAX811
Guaranteed Over Temperature

Applications/Uses

Computers: Desktop, Workstation, Server
Controllers
Critical µP and µC Power Monitoring
Intelligent Instruments
Portable Battery-Powered Equipment

Key Specifications:

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

MAX6315

2.5 to 3.3

3.3 to 5.5

Active Low

Open Drain

1ms to 15ms

15ms to 85ms

85ms to 300ms

>1s

No Watchdog

Manual Reset

1.8

$1.01 @1k

See All Supervisors (1 Monitored Voltage) (274)

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.

Diagram

Typical Operating Circuit

Application Notes

Tutorial 279

Supervisory Circuits Keep Your Microprocessor Under Control

Product Guides

Microprocessor Supervisory (PDF)

Reliability Reports

Reliability Report:	MAX6315.pdf
Show FIT data for:

Software/Models

MAX6315 IBIS Model

MAX6315 PSPICE Macromodel

Ordering Information

Filters:

Part Number:

Package:

Temperature:

Tape and Reel

Sample

Devices: 201-233 / 233

<-- Previous 1 2 3 4 5 Next -->

Part Number	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX6315US46D4-T			Active	SOT;4 pin;8 mm² Outline Drawing:21-0052 (PDF) Land Pattern: 90-0183 (PDF) Use pkgcode/variation: U4-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX6315US47D1+T			Active	SOT; Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX6315US47D1-T			Active	SOT;4 pin;8 mm² Outline Drawing:21-0052 (PDF) Land Pattern: 90-0183 (PDF) Use pkgcode/variation: U4-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX6315US47D2+T			Active	SOT; Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX6315US47D2-T			Active	SOT;4 pin;8 mm² Outline Drawing:21-0052 (PDF) Land Pattern: 90-0183 (PDF) Use pkgcode/variation: U4-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX6315US47D3+T			Active	SOT;4 pin;8 mm² Outline Drawing:21-0052 (PDF) Land Pattern: 90-0183 (PDF) Use pkgcode/variation: U4+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX6315US47D3-T			Active	SOT;4 pin;8 mm² Outline Drawing:21-0052 (PDF) Land Pattern: 90-0183 (PDF) Use pkgcode/variation: U4-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX6315US47D4+T			Active	SOT;4 pin;8 mm² Outline Drawing:21-0052 (PDF) Land Pattern: 90-0183 (PDF) Use pkgcode/variation: U4+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX6315US47D4-T			Active	SOT;4 pin;8 mm² Outline Drawing:21-0052 (PDF) Land Pattern: 90-0183 (PDF) Use pkgcode/variation: U4-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX6315US48D1+T			Active	SOT; 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
MAX6315US48D1-T			Active	SOT;4 pin;8 mm² Outline Drawing:21-0052 (PDF) Land Pattern: 90-0183 (PDF) Use pkgcode/variation: U4-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX6315US48D2+T			Active	SOT;4 pin;8 mm² Outline Drawing:21-0052 (PDF) Land Pattern: 90-0183 (PDF) Use pkgcode/variation: U4+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX6315US48D2-T			Active	SOT;4 pin;8 mm² Outline Drawing:21-0052 (PDF) Land Pattern: 90-0183 (PDF) Use pkgcode/variation: U4-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX6315US48D3+T			Active	SOT;4 pin;8 mm² Outline Drawing:21-0052 (PDF) Land Pattern: 90-0183 (PDF) Use pkgcode/variation: U4+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX6315US48D3-T			Active	SOT;4 pin;8 mm² Outline Drawing:21-0052 (PDF) Land Pattern: 90-0183 (PDF) Use pkgcode/variation: U4-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX6315US48D4+T			Active	SOT; Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX6315US48D4-T			Active	SOT;4 pin;8 mm² Outline Drawing:21-0052 (PDF) Land Pattern: 90-0183 (PDF) Use pkgcode/variation: U4-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX6315US49D1+T			Active	SOT; Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX6315US49D1-T			Active	SOT;4 pin;8 mm² Outline Drawing:21-0052 (PDF) Land Pattern: 90-0183 (PDF) Use pkgcode/variation: U4-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX6315US49D2+T			Active	SOT; 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
MAX6315US49D2-T			Active	SOT;4 pin;8 mm² Outline Drawing:21-0052 (PDF) Land Pattern: 90-0183 (PDF) Use pkgcode/variation: U4-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX6315US49D3+T			Active	SOT;4 pin;8 mm² Outline Drawing:21-0052 (PDF) Land Pattern: 90-0183 (PDF) Use pkgcode/variation: U4+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX6315US49D3-T			Active	SOT;4 pin;8 mm² Outline Drawing:21-0052 (PDF) Land Pattern: 90-0183 (PDF) Use pkgcode/variation: U4-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX6315US49D4+T			Active	SOT; Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX6315US49D4-T			Active	SOT;4 pin;8 mm² Outline Drawing:21-0052 (PDF) Land Pattern: 90-0183 (PDF) Use pkgcode/variation: U4-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX6315US50D1+T			Active	SOT; Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX6315US50D1-T			Active	SOT;4 pin;8 mm² Outline Drawing:21-0052 (PDF) Land Pattern: 90-0183 (PDF) Use pkgcode/variation: U4-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX6315US50D2+T			Active	SOT; Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX6315US50D2-T			Active	SOT;4 pin;8 mm² Outline Drawing:21-0052 (PDF) Land Pattern: 90-0183 (PDF) Use pkgcode/variation: U4-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX6315US50D3+T			Active	SOT; 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
MAX6315US50D3-T			Active	SOT;4 pin;8 mm² Outline Drawing:21-0052 (PDF) Land Pattern: 90-0183 (PDF) Use pkgcode/variation: U4-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX6315US50D4+T			Active	SOT; Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX6315US50D4-T			Active	SOT;4 pin;8 mm² Outline Drawing:21-0052 (PDF) Land Pattern: 90-0183 (PDF) Use pkgcode/variation: U4-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis

Devices: 201-233 / 233

<-- Previous 1 2 3 4 5 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.

Notes and Comments

Customized reset thresholds and reset timeout delays

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See All Supervisors (1 Monitored Voltage) (274 Products)

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