ADM6713 Analog Devices, ADM6713 Datasheet

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ADM6713

Manufacturer Part Number
ADM6713
Description
Microprocessor Supervisory Circuit in 4-Lead SC70
Manufacturer
Analog Devices
Datasheet

Specifications of ADM6713

# Of Monitored Voltages
1
Backup-battery Switch
No
Manual Reset Capability
Yes
Package
SC70
Reset Threshold Summary
6 Options--2.32 to 4.63V
Reset Output-stage
Active-Low/Open-Drain
Min Reset Timeout (ms)
140
Watchdog Timer
No

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Data Sheet
FEATURES
Specified over temperature
Low power consumption (12 μA)
Precision monitoring of 2.5 V, 3 V, 3.3 V,
Reset timeout period of 140 ms (minimum)
Manual reset input
Output stages
Reset assertion down to 1 V V
Power supply glitch immunity
4-lead SC70 package
APPLICATIONS
Microprocessor systems
Computers
Controllers
Intelligent instruments
Automotive systems
GENERAL DESCRIPTION
The
for use in microprocessor-based systems. They provide a reset
signal on power-up, power-down, and whenever the supply
voltage falls below a preset threshold. In addition, both parts
have a debounced manual reset input so that a reset signal can
also be initiated with an external switch or logic signal.
With six different reset threshold options available ranging from
2.32 V to 4.63 V, the
monitoring 2.5 V, 3 V, 3.3 V, and 5 V supplies. A reset timeout
of at least 140 ms occurs when V
This gives the supply voltage time to stabilize before the
microprocessor starts up.
The
components are needed. The
requires an external pull-up resistor that can be connected to
a voltage higher than V
Rev. B
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.
and 5 V power supply voltages
Push-pull RESET output (ADM6711)
Open-drain RESET output (ADM6713)
ADM6711
ADM6711/ADM6713
has a push-pull output, so no additional external
ADM6711/ADM6713
CC
, if desired.
are reset generator circuits suitable
ADM6713
CC
CC
rises above the threshold.
open-drain output
are suitable for
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113
The parts are highly reliable with accurate voltage references
and immunity to fast, negative-going transients on V
current consumption and space-efficient, 4-lead SC70 packaging
make the
portable applications.
Microprocessor Supervisory
V
V
MR
MR
CC
CC
ADM6711/ADM6713
V
FUNCTIONAL BLOCK DIAGRAMS
V
MR
REF
REF
ADM6711
ADM6713
ADM6711/
ADM6713
Circuit in 4-Lead SC70
GND
V
Figure 3. Typical Operating Circuit
©2006–2011 Analog Devices, Inc. All rights reserved.
CC
DEBOUNCE
DEBOUNCE
RESET
ADM6711/ADM6713
*ADM6713 ONLY
GENERATOR
GENERATOR
Figure 1.
Figure 2.
*R
PULL-UP
RESET
RESET
240ms
240ms
ideal for use in low power
MICROPROCESSOR
RESET
SYSTEM
GND
V
CC
www.analog.com
CC
RESET
GND
RESET
GND
. Low

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ADM6713 Summary of contents

Page 1

... Precision monitoring of 2 3.3 V, and 5 V power supply voltages Reset timeout period of 140 ms (minimum) Manual reset input Output stages Push-pull RESET output (ADM6711) Open-drain RESET output (ADM6713) Reset assertion down Power supply glitch immunity 4-lead SC70 package APPLICATIONS Microprocessor systems ...

Page 2

... Typical Performance Characteristics ..............................................7   Circuit Description............................................................................8   Manual Reset Input .......................................................................8   Power Supply Glitch Immunity ...................................................8   ADM6713 RESET Output Logic Levels .....................................8   Ensuring a Valid RESET Output Down To V   Outline Dimensions ..........................................................................9   Ordering Guide .............................................................................9   Rev Page Data Sheet   ...

Page 3

... RESET VOLTAGE THRESHOLD ADM671_L ADM671_M ADM671_T ADM671_S ADM671_R ADM671_Z RESET THRESHOLD TEMPERATURE COEFFICIENT V to RESET DELAY CC RESET ACTIVE TIMEOUT PERIOD RESET OUTPUT VOLTAGE Low (ADM6711/ADM6713) High (ADM6711 typ = 5 V for L/M models, 3.3 V for T/S models for R models, and 2.5 V for Z models, MAX CC Min Typ Max 1.0 5.5 1.2 5.5 ...

Page 4

... ADM6711/ADM6713 Parameter RESET OPEN-DRAIN OUTPUT LEAKAGE CURRENT MANUAL RESET (MR) Input Threshold Pull-Up Resistance Minimum Pulse width Glitch Immunity Reset Delay Min Typ Max Unit 1 μ kΩ 1 μs 100 ns 200 ns Rev Page Data Sheet Test Conditions/Comments V > V ...

Page 5

... ADM671_M −0 ADM671_T −0 0 ADM671_S −0 ADM671_R −0 0 ADM671_Z 20 mA ESD CAUTION 20 mA 100 V/μs 146°C/W −40°C to +125°C −65°C to +150°C 300°C Rev Page ADM6711/ADM6713 RESET Threshold (V) 4.63 4.38 3.08 2.93 2.63 2.32 ...

Page 6

... Leave floating when not used Supply Voltage Being Monitored. CC ADM6711/ GND ADM6713 TOP VIEW (Not to Scale) RESET Figure 4. Pin Configuration is below the reset threshold and remains low for CC rises above the reset threshold. ...

Page 7

... Figure 7. Power-Down RESET Delay vs. Temperature: ADM671_L/ ADM671_M 85 100 120 70 85 100 120 Figure 9. Maximum Transient Duration (Without Causing a RESET Pulse) vs 100 120 Rev Page ADM6711/ADM6713 1.007 1.006 1.005 1.004 1.003 1.002 1.001 1.000 0.999 0.998 0.997 0.996 0.995 –40 – ...

Page 8

... Glitch immunity makes the ADM6711/ADM6713 use in noisy environments. Mounting a 0.1 μF decoupling capacitor as close as possible to the V CC immunity further. ADM6713 RESET OUTPUT LOGIC LEVELS The ADM6713 an external pull-up resistor. This resistor can be tied to V any other reasonable voltage level, offering the flexibility to use the ...

Page 9

... ADM6711SAKS-REEL7 2.93 ADM6711SAKSZ-REEL7 2.93 ADM6711RAKS-REEL 2.63 ADM6711RAKSZ-REEL 2.63 ADM6711RAKS-REEL7 2.63 ADM6711RAKSZ-REEL7 2.63 ADM6711ZAKS-REEL 2.32 ADM6711ZAKSZ-REEL 2.32 ADM6711ZAKS-REEL7 2.32 ADM6711ZAKSZ-REEL7 2.32 ADM6713LAKS-REEL 4.63 ADM6713LAKSZ-REEL 4.63 ADM6713LAKSZ-REEL7 4.63 ADM6713MAKS-REEL 4.38 ADM6713MAKS-REEL7 4.38 ADM6713MAKSZ-REEL7 4.38 ADM6713TAKS-REEL 3.08 2.20 1. 2.40 1. 0.65 BSC 0.50 BSC 0.40 1.00 1.10 0.10 0.80 0.80 0.18 SEATING 0.10 PLANE * 0.70 0.30 0.50 0.15 * PACKAGE OUTLINE CORRESPONDS IN FULL TO EIAJ SC82 EXCEPT FOR WIDTH OF PIN 2 AS SHOWN. Figure 11. 4-Lead Thin Shrink Small Outline Transistor Package [SC70] ...

Page 10

... Threshold (V) Model ADM6713TAKS-REEL7 3.08 ADM6713TAKSZ-REEL7 3.08 ADM6713SAKS-REEL 2.93 ADM6713SAKSZ-REEL 2.93 ADM6713SAKS-REEL7 2.93 ADM6713SAKSZ-REEL7 2.93 ADM6713RAKS-REEL 2.63 ADM6713RAKSZ-REEL 2.63 ADM6713RAKS-REEL7 2.63 ADM6713RAKSZ-REEL7 2.63 ADM6713ZAKS-REEL 2.32 ADM6713ZAKSZ-REEL 2.32 ADM6713ZAKS-REEL7 2.32 ADM6713ZAKSZ-REEL7 2. RoHS Compliant Part. Temperature Package Range Description −40°C to +125°C 4-Lead SC70 −40°C to +125°C 4-Lead SC70 −40°C to +125°C 4-Lead SC70 − ...

Page 11

... Data Sheet NOTES Rev Page ADM6711/ADM6713 ...

Page 12

... ADM6711/ADM6713 NOTES ©2006–2011 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D03754-0-9/11(B) Rev Page Data Sheet ...

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