ADM6321DW49ARJ-RL7 datasheet, PDF

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ADM6321DW49ARJ-RL7: Description1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDSO5, MO-178AA, SOT-23, 5 PIN; CategoryPower/power management The power supply circuit; File Size302KB，16 Pages; ManufacturerADI; Websitehttps://www.analog.com

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ADM6321DW49ARJ-RL7 Overview

1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDSO5, MO-178AA, SOT-23, 5 PIN

ADM6321DW49ARJ-RL7 Parametric

Parameter Name	Attribute value
Is it lead-free?	Contains lead
Is it Rohs certified?	incompatible
Maker	ADI
Parts packaging code	SOIC
package instruction	LSSOP, TSOP5/6,.11,37
Contacts	5
Reach Compliance Code	not_compliant
ECCN code	EAR99
Other features	RESET THRESHOLD VOLTAGE IS 4.9V
Adjustable threshold	NO
Analog Integrated Circuits - Other Types	POWER SUPPLY MANAGEMENT CIRCUIT
JESD-30 code	R-PDSO-G5
JESD-609 code	e0
length	2.9 mm
Number of channels	1
Number of functions	1
Number of terminals	5
Maximum operating temperature	85 °C
Minimum operating temperature	-40 °C
Package body material	PLASTIC/EPOXY
encapsulated code	LSSOP
Encapsulate equivalent code	TSOP5/6,.11,37
Package shape	RECTANGULAR
Package form	SMALL OUTLINE, LOW PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius)	240
power supply	1/5.5 V
Certification status	Not Qualified
Maximum seat height	1.45 mm
Maximum supply current (Isup)	0.02 mA
Maximum supply voltage (Vsup)	5.5 V
Minimum supply voltage (Vsup)	1 V
Nominal supply voltage (Vsup)	3.3 V
surface mount	YES
Temperature level	INDUSTRIAL
Terminal surface	Tin/Lead (Sn/Pb)
Terminal form	GULL WING
Terminal pitch	0.95 mm
Terminal location	DUAL
Maximum time at peak reflow temperature	NOT SPECIFIED
width	1.65 mm

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Supervisory Circuits with Watchdog

and Manual Reset in 5-Lead SOT-23

ADM6316/ADM6317/ADM6318/ADM6319/ADM6320/ADM6321/ADM6322

FEATURES

26 reset threshold options

2.5 V to 5 V in 100 mV increments

4 reset timeout options

1 ms, 20 ms, 140 ms, and 1120 ms (minimum)

4 watchdog timeout options

6.3 ms, 102 ms, 1600 ms, and 25.6 sec (typical)

Manual reset input

Reset output stages

Push-pull active low

Open-drain active low

Push-pull active high

Low power consumption: 5 μA

Guaranteed reset output valid to V

= 1 V

Power supply glitch immunity

Specified over industrial temperature range

5-lead SOT-23 package

FUNCTIONAL BLOCK DIAGRAMS

ADM6316

REF

RESET

GENERATOR

RESET

DEBOUNCE

WATCHDOG

DETECTOR

04533-001

GND

WDI

Figure 1.

ADM6320

REF

APPLICATIONS

Microprocessor systems

Computers

Controllers

Intelligent instruments

Portable equipment

RESET

GENERATOR

RESET

DEBOUNCE

WATCHDOG

DETECTOR

04533-028

GND

WDI

Figure 2.

GENERAL DESCRIPTION

The ADM6316/ADM6317/ADM6318/ADM6319/ADM6320/

ADM6321/ADM6322 are supervisory circuits that monitor

power supply voltage levels and code execution integrity in

microprocessor-based systems. As well as providing power-

on reset signals, an on-chip watchdog timer can reset the

microprocessor if it fails to strobe within a preset timeout

period. A reset signal can also be asserted by an external push

button through a manual reset input. The seven parts feature

different combinations of watchdog input, manual reset input,

and output stage configuration, as shown in Table 1.

Table 1. Selection Table

Output Stage

Part No.

ADM6316

ADM6317

ADM6318

ADM6319

ADM6320

ADM6321

ADM6322

Rev. D

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.

Each part is available in a choice of 26 reset threshold options

ranging from 2.5 V to 5 V in 100 mV increments. There are also

four reset timeout options of 1 ms, 20 ms, 140 ms, and 1120 ms

(minimum) and four watchdog timeout options of 6.3 ms, 102 ms,

1600 ms, and 25.6 sec (typical).

The ADM6316/ADM6317/ADM6318/ADM6319/ADM6320/

ADM6321/ADM6322 are available in 5-lead SOT-23 packages

and typically consume only 3 μA, making them suitable for use

in low power portable applications.

Watchdog

Yes

Manual Reset

Yes

RESET

Push-pull

Open-drain

RESET

Push-pull

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

Tel: 781.329.4700

www.analog.com

ADM6316/ADM6317/ADM6318/ADM6319/ADM6320/ADM6321/ADM6322

TABLE OF CONTENTS

Features .............................................................................................. 1

Applications ....................................................................................... 1

Functional Block Diagrams ............................................................. 1

General Description ......................................................................... 1

Revision History ............................................................................... 2

Specifications..................................................................................... 3

Absolute Maximum Ratings............................................................ 5

ESD Caution .................................................................................. 5

Pin Configurations and Function Descriptions ........................... 6

Typical Performance Characteristics ............................................. 7

Circuit Description ........................................................................... 9

Reset Output ................................................................................. 9

Open-Drain RESET Output ........................................................9

Manual Reset Input .......................................................................9

Watchdog Input .............................................................................9

Applications Information .............................................................. 10

Watchdog Input Current ........................................................... 10

Negative-Going V

Transients ................................................ 10

Ensuring Reset Valid to V

= 0 V ........................................... 10

Watchdog Software Considerations ......................................... 10

Options ............................................................................................ 11

Outline Dimensions ....................................................................... 13

Ordering Guide .......................................................................... 13

REVISION HISTORY

8/08—Rev. C to Rev. D

Change to Figure 18 ......................................................................... 9

4/07—Rev. B to Rev. C

Added Figure 2 .................................................................................. 1

Changes to Figure 23 ...................................................................... 13

Changes to Ordering Guide .......................................................... 13

1/07—Rev. A to Rev. B

Changes to Functional Block Diagram .......................................... 1

Changes to Figure 18 ...................................................................... 10

5/06—Rev. 0 to Rev. A

Updated Format .................................................................. Universal

Changes to Functional Block Diagram .......................................... 1

Changes to Table 8 .......................................................................... 12

Changes to Figure 22 ...................................................................... 13

Changes to Ordering Guide .......................................................... 13

10/04—Revision 0: Initial Version

Rev. D | Page 2 of 16

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