adm6339farjz-rl7 Analog Devices, Inc., adm6339farjz-rl7 Datasheet

adm6339farjz-rl7

Manufacturer Part Number

adm6339farjz-rl7

Description

Quad Voltage Microprocessor Supervisory Circuit

Manufacturer

Analog Devices, Inc.

Datasheet

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FEATURES

Accurate monitoring of up to four power supply voltages

6 factory-set threshold options: −5.0 V, 1.8 V, 2.5 V, 3.0 V,

Adjustable input threshold options: −0.5 V (±2.0% accuracy),

200 ms typical reset timeout

Open-drain RESET output (10 μA internal pull-up)

Reset output stage: active low, valid to IN

Low power consumption (55 μA)

Glitch immunity

Specified from −40°C to +85°C

6-lead SOT-23 package

APPLICATIONS

Telecommunications

Microprocessor systems

Data storage equipment

Servers/workstations

GENERAL DESCRIPTION

The ADM6339 is a high accuracy supervisory circuit capable of

monitoring up to four system supply voltages.

The ADM6339 incorporates a variety of internally pretrimmed

undervoltage threshold options for monitoring −5.0 V, 1.8 V,

2.5 V, 3.0 V, 3.3 V, and 5.0 V supply voltages. Tolerance levels

of ±5% and ±10% are available. The device is also available

with one to three adjustable threshold options. The adjustable

voltage threshold options are 1.23 V, 0.62 V, and −0.5 V. See the

Ordering Guide section for a list and description of all available

options.

If a monitored power supply voltage decreases below the mini-

mum voltage threshold (or rises above the maximum voltage

threshold for the −0.5 V and −5.0 V input options), a single

Rev. 0

Information furnished by Analog Devices is believed to be accurate and reliable. However, no

responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other

rights of third parties that may result from its use. Specifications subject to change without notice. No

license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

Trademarks and registered trademarks are the property of their respective owners.

3.3 V, and 5.0 V

0.62 V (±0.8% accuracy), and 1.23 V

= 1 V or IN

= 1 V

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781.329.4700

Fax: 781.461.3113

active low output asserts, triggering a system reset. The output

is open drain with a weak internal pull-up to the monitored IN

supply of typically 10 μA. After all voltages exceed the selected

threshold level, the reset signal remains low for the reset

timeout period (200 ms typical).

The ADM6339 output remains valid as long as IN

exceeds 1 V. Unused monitored inputs should not be allowed to

float or to be grounded; instead, they should be connected to a

supply voltage greater than their specified threshold voltages.

The ADM6339 is available in a 6-lead SOT-23 package. The

device operates over the extended temperature range of −40°C

to +85°C.

Quad Voltage Microprocessor

REF

FUNCTIONAL BLOCK DIAGRAM

Supervisory Circuit

Figure 1.

TIMEOUT

200ms

ADM6339

5V PULLUP

ADM6339

www.analog.com

or IN

RESET

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adm6339farjz-rl7 Summary of contents

Page 1

... One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 Fax: 781.461.3113 Supervisory Circuit ADM6339 FUNCTIONAL BLOCK DIAGRAM PULLUP 200ms TIMEOUT ADM6339 V REF Figure 1. www.analog.com ©2009 Analog Devices, Inc. All rights reserved RESET ...

Page 2

ADM6339 TABLE OF CONTENTS Features .............................................................................................. 1 Applications ....................................................................................... 1 Functional Block Diagram .............................................................. 1 General Description ......................................................................... 1 Revision History ............................................................................... 2 Specifications ..................................................................................... 3 Absolute Maximum Ratings ............................................................ 4 ESD Caution .................................................................................. 4 Pin Configuration and Function Descriptions ...

Page 3

SPECIFICATIONS −40°C to +85°C, unless otherwise noted. Typical values are V IN2 A Table 1. Parameter 1, 2 OPERATING VOLTAGE RANGE (V ) IN2 INPUT CURRENT IN Input Current x THRESHOLD ...

Page 4

ADM6339 ABSOLUTE MAXIMUM RATINGS Table 2. Parameter V , RESET , GND CC Continuous RESET Current IN (Positive Reset Threshold (Negative Reset Threshold − ADM6339Q Model (Negative Reset 4 Threshold, 0.5 V) − Storage ...

Page 5

PIN CONFIGURATION AND FUNCTION DESCRIPTIONS Table 4. Pin Function Descriptions Pin No. Mnemonic Description 1 IN Monitored Input Voltage Monitored Input Voltage Monitored Input Voltage Monitored Input ...

Page 6

ADM6339 TYPICAL PERFORMANCE CHARACTERISTICS 3 25°C, unless otherwise noted. IN2 –40 – TEMPERATURE (ºC) Figure 3. IN Input ...

Page 7

RESET C2 C2 BwL DC1M C3 BwL DC1M Timebase 0.0µs 2.00V/div 1.00V/div 10.0 µs/div –6.000V offset 2.040V offset 200kS 2.0 GS/s Figure 9. RESET Pull-Up and Pull-Down Response (10 μs/Div) 0.630 0.625 0.620 0.615 0.610 –40 –20 ...

Page 8

ADM6339 THEORY OF OPERATION The ADM6339 is a compact, low power supervisory circuit that is capable of monitoring up to four voltages in a multisupply application. The device includes several factory-set voltage threshold options for monitoring −5.0 V, 1.8 V, ...

Page 9

When monitoring a voltage more negative than −0 scheme similar to that previously described in the Monitoring Negative Voltages < −5.0 V section is used. For an input monitor current error of <1%, the resistor network current should ...

Page 10

... ADM6339 OUTLINE DIMENSIONS 1.70 1.60 1.50 PIN 1 INDICATOR 1.30 1.15 0.90 0.15 MAX 0.05 MIN ORDERING GUIDE Nominal Input Voltage (V) Model ADM6339AARJZ-RL7 5.0 ADM6339BARJZ-RL7 1 5.0 1 ADM6339CARJZ-RL7 5.0 1 ADM6339DARJZ-RL7 5.0 ADM6339EARJZ-RL7 1 5.0 1 ADM6339FARJZ-RL7 5.0 ADM6339GARJZ-RL7 1 5.0 1 ADM6339HARJZ-RL7 5.0 1 ADM6339IARJZ-RL7 5.0 ADM6339JARJZ-RL7 1 5.0 ADM6339KARJZ-RL7 1 Adj (1.23) 1 ADM6339LARJZ-RL7 Adj (1.23) ADM6339MARJZ-RL7 1 5.0 1 ADM6339NARJZ-RL7 5.0 1 ADM6339OARJZ-RL7 5.0 ADM6339PARJZ-RL7 1 5.0 1 ADM6339QARJZ-RL7 Adj (0.62 RoHS Compliant Part. ...

Page 11

ADM6339 NOTES Rev Page ...

Page 12

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