adm6306d131arjz1r7 Analog Devices, Inc., adm6306d131arjz1r7 Datasheet

adm6306d131arjz1r7

Manufacturer Part Number

adm6306d131arjz1r7

Description

Multiple Input Programmable Supervisory Ics Adm6305/adm6306

Manufacturer

Analog Devices, Inc.

Datasheet

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FEATURES

Adjustable input threshold voltage options: 0.4 V and 1.23 V

Pre-trimmed V

Manual reset input (ADM6306)

4 factory programmed reset timeout delays

Reset output stage: active low, open drain

Low power consumption: 5 µA typical

Power supply glitch immunity

5-lead SOT-23 package

Temperature range: −40°C to +125°C

APPLICATIONS

Portable/battery-operated equipment

Microprocessor systems

Multivoltage applications

GENERAL DESCRIPTION

The ADM6305/ADM6306 are dual voltage supervisors

designed to monitor two supplies and provide a reset signal to

DSP- and microprocessor-based systems. Low supply current

and a small form factor make these devices suitable for portable

and battery-operated applications.

If a monitored power supply voltage falls below the minimum

voltage threshold, a single active low output asserts triggering a

system reset. Once all voltages rise above the selected threshold

level, the reset signal remains low for the reset timeout period.

Four reset timeout options are available.

The ADM6305 monitors two supplies via two adjustable

resistor-programmable undervoltage reset inputs. Both RST

IN1 and RST IN2 have a reset threshold of either 0.4 V or

1.23 V depending on the particular model; that is, the RST IN1

and RST IN2 threshold of the ADM6305DxARJZ model is

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.

Increments between 2.5 V and 5 V

1 ms, 20 ms, 140 ms, and 1.12 sec (minimum)

threshold options (ADM6306)

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

Tel: 781.329.4700

Fax: 781.461.3113

1.23 V, while in the case of ADM6305DxARJZ1 model, it is

0.4 V. The V

The ADM6306 has one adjustable undervoltage reset input,

RST IN, which features a choice of reset threshold, 0.4 V or

1.23 V (see the Ordering Guide for more information). The

ADM6306 incorporates a variety of internally pretrimmed V

undervoltage threshold options for monitoring supply voltages

in increments between 2.5 V and 5 V. The ADM6306 also

includes a manual reset input.

The ADM6305/ADM6306 RESET output remains valid as long

as V

The ADM6305/ADM6306 are available in a 5-lead SOT-23

package. These devices are specified over the temperature range

of −40°C to +125°C.

Multiple Input Programmable

RST IN1

RST IN2

RST IN

exceeds 0.9 V.

FUNCTIONAL BLOCK DIAGRAMS

input of the ADM6305 is not a monitored input.

REJECTION

1.23V

0.4V/1.23V

GLITCH

ADM6305/ADM6306

Figure 1.

Figure 2.

GND

Supervisory ICs

ADM6306

ADM6305

GENERATOR

RESET

www.analog.com

RESET

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adm6306d131arjz1r7 Summary of contents

Page 1

... The ADM6305/ADM6306 are available in a 5-lead SOT-23 package. These devices are specified over the temperature range of −40°C to +125°C. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 Fax: 781.461.3113 ©2010 Analog Devices, Inc. All rights reserved. RESET RESET RESET RESET CC ...

Page 2

ADM6305/ADM6306 TABLE OF CONTENTS Features .............................................................................................. 1 Applications ....................................................................................... 1 Functional Block Diagrams ............................................................. 1 General Description ......................................................................... 1 Revision History ............................................................................... 2 Specifications ..................................................................................... 3 Absolute Maximum Ratings ............................................................ 4 Thermal Resistance ...................................................................... 4 ESD Caution .................................................................................. 4 REVISION ...

Page 3

SPECIFICATIONS for the ADM6305 Typical values are 25°C. A Table 1. Parameter 1 OPERATING VOLTAGE RANGE INPUT CURRENT THRESHOLD VOLTAGE (ADM6306) CC ...

Page 4

ADM6305/ADM6306 ABSOLUTE MAXIMUM RATINGS Table 2. Parameter V CC All Pins (Except Input/Output Current Rate of Rise Storage Temperature Range Operating Temperature Range Lead Temperature (10 sec) Junction Temperature Stresses above those listed under Absolute ...

Page 5

PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS Table 4. ADM6305 Pin Function Descriptions Pin No. Mnemonic Description 1 RESET Active Low, Open-Drain RESET Output. 2 GND Ground. 3 RST IN1 Adjustable Reset Comparator Input. This pin asserts RESET if the input voltage ...

Page 6

ADM6305/ADM6306 TYPICAL PERFORMANCE CHARACTERISTICS 6.0 5 4. 5.5V CC 4 3.5V CC 3.5 3.0 –40 – TEMPERATURE (°C) Figure 5. Supply Current vs. Temperature 1.10 1.05 ...

Page 7

TRANSIENT DURATION (µs) 5V 100 TRANSIENT DURATION (µ 200 400 600 800 OVERDRIVE, V – V REF RST IN Figure 11. Maximum Transient Duration vs. RST IN (V Overdrive 120 1mV/1µs 100 80 60 ...

Page 8

ADM6305/ADM6306 THEORY OF OPERATION The ADM6305/ADM6306 are compact, low power supervisory circuits capable of monitoring two voltage rails monitored voltage drops below its associated threshold, the active low reset output asserts low. The ADM6305 monitors two supplies via ...

Page 9

OPTIONS Table 6. ADM6306 V Reset Voltage Threshold Options CC Reset Threshold Number Min 25 2.463 26 2.591 27 2.66 28 2.758 29 2.886 30 2.955 31 3.034 32 3.152 33 3.251 34 3.349 35 3.448 36 3.546 37 3.645 ...

Page 10

... TEMPERATURE RANGE PACKAGE DESIGNATOR Table 9. Standard Models Model RST IN1 ADM6305D3ARJZ-RL7 1.23 V ADM6305D3ARJZ1-RL7 0.4 V ADM6306D131ARJZ-R7 N/A ADM6306D131ARJZ1R7 N/A ADM6306D331ARJZ-R7 N/A ADM6305D_ARJZ_-RL7 PACKING MATERIAL RL7 = 7” TAPE & REEL (3000 PIECE QUANTITY) RST IN1 & RST IN2 ADJUSTABLE THRESHOLD A: –40°C TO +125°C 1:0.4V & 0.4V BLANK: 1.23V & 1.23V ...

Page 11

... ADM6306D131ARJZ-R7 −40°C to +125°C ADM6306D331ARJZ-R7 −40°C to +125°C ADM6306D131ARJZ1R7 −40°C to +125°C 1 ADM6305 and ADM6306 follow the C2 Pin 1 orientation standard for tape and reel packaging (see Figure 19 ordering nonstandard models, complete the ordering code shown in Figure 16 and Figure 17 by inserting the reset threshold, reset timeout, and adjustable threshold suffixes ...

Page 12

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