ADM6346-42ARTZ-R7

ADM6346-42ARTZ-R7 Datasheet

Ultralow Power, 3-Lead, SOT-23 Microprocessor Reset Circuits ADM6326/ADM6328/ADM6346/ADM6348

Part	Datasheet
ADM6346-42ARTZ-R7	ADM6346-42ARTZ-R7 (pdf)

PDF Datasheet Preview
Data Sheet Ultralow Power, 3-Lead, SOT-23 Microprocessor Reset Circuits ADM6326/ADM6328/ADM6346/ADM6348 Ultralow supply current of 1 µA maximum ADM6326/ADM6328 Accurate monitoring of V, 3 V, V, and 5 V rails Reset thresholds available in increments from V to V Glitch immunity from negative-going VCC transients 2 reset output options Push-pull RESET ADM6326/ADM6346 Open-drain RESET ADM6328/ADM6348 Minimum reset timeout of 100 ms Operating temperature range of −40°C to +85°C 3-lead SOT-23 package Telecommunications Microprocessor systems Desktop and notebook computers Portable equipment The ADM6326/ADM6328/ADM6346/ADM6348 devices provide low cost solutions for protecting sensitive circuitry, such as microprocessor and telecommunications circuitry. With built-in glitch immunity, ultralow supply currents, and 24 reset threshold voltage options, the ADM6326/ADM6328/ ADM6346/ADM6348 not only ensure that systems are immune to fast transients on VCC, but also that the devices are suitable for monitoring a variety of supply voltages in low power, portable equipment. These devices provide a reset output during power-up, powerdown, and brownout conditions. On power-up, an internal timer holds RESET asserted for at least 100 ms. This holds the FUNCTIONAL BLOCK DIAGRAMS ADM6326/ADM6346 VREF RESET GENERATOR 100ms RESET 08052-001 Figure ADM6328/ADM6348 VREF RESET GENERATOR 100ms RESET 08052-002 Figure microprocessor in a reset state until conditions have stabilized. The reset output remains operational with VCC as low as 1 V. The ADM6326 and ADM6346 have an active low push-pull reset output. The ADM6328 and ADM6348 have an active low opendrain reset output, which requires an external pull-up resistor. The ADM6326 and ADM6328 offer a choice of ten reset thresholds in increments between V and V, whereas the ADM6346 and ADM6348 offer a choice of 14 reset thresholds between V and V. These devices are available in a 3-lead SOT-23 package and operate over the extended temperature range of −40°C to +85°C. Document Feedback 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. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel Analog Devices, Inc. All rights reserved. Technical Support ADM6326/ADM6328/ADM6346/ADM6348 TABLE OF CONTENTS Thermal Resistance 4 ESD 4 Data Sheet Pin Configuration and Function Typical Performance Characteristics Theory of Operation Reset Output Interfacing to Other Devices Transient Immunity Outline Dimensions Ordering Guide Data Sheet ADM6326/ADM6328/ADM6346/ADM6348 SPECIFICATIONS TA = −40°C to +85°C, unless otherwise noted. Typical values are at TA = 25°C and VCC = 3 V. Overtemperature limits are guaranteed by design. Table Parameter OPERATING VOLTAGE RANGE, VCC INPUT CURRENT, ICC RESET THRESHOLD Voltage, VTH See Table 2 Temperature Coefficient Hysteresis ADM6326/ADM6328 ADM6346/ADM6348 TIMING CHARACTERISTICS VCC to Reset Delay tRD Reset Active Timeout Period tRP RESET OUTPUT VOLTAGE LOW, VOL RESET OUTPUT VOLTAGE HIGH, VOH OPEN-DRAIN RESET OUTPUT LEAKAGE CURRENT VTH − VTH − VTH x VCC x VCC x VCC Unit Test Conditions/Comments ADM6326/ADM6328 only, VCC = V for VTH V, VCC = V for VTH > V, no load VCC = V, no load VTH + VTH + V ppm/°C TA = 25°C VCC = VTH to VTH − 100 mV VCC > V, ISINK = mA, reset asserted VCC V, ISINK = 100 uA, reset asserted ADM6326 only, VCC = V, ISOURCE = 500 µA ADM6326/ADM6346 only, VCC = V, ISOURCE = 800 µA, VTH V ADM6326/ADM6346 only, VCC = VTH MAX , ISOURCE = 800 µA, VTH V Table Reset Threshold Voltage Parameter RESET THRESHOLD VOLTAGE VTH ADM632x-22 ADM632x-23 ADM632x-24 ADM632x-25 ADM632x-26 ADM632x-27 ADM632x-28 ADM632x-29 ADM632x-30 ADM632x-31 ADM634x-33 ADM634x-34 ADM634x-35 ADM634x-36 ADM634x-37 ADM634x-38 ADM634x-39 ADM634x-40 ADM634x-41 ADM634x-42 ADM634x-43 ADM634x-44 ADM634x-45 ADM634x-46 TA = 25°C TA = −40°C to +85°C Unit ADM6326/ADM6328/ADM6346/ADM6348 ABSOLUTE MAXIMUM RATINGS Table Parameter Supply Voltage, VCC Input Current, ICC Output Voltage Push-Pull RESET Open-Drain RESET Output Current RESET Rate of Rise of VCC Temperature Storage Operating Soldering 10 sec ORDERING GUIDE Model1, 2, 3 ADM6326-22ARTZ-R7 ADM6326-23ARTZ-R7 ADM6326-24ARTZ-R7 ADM6326-25ARTZ-R7 ADM6326-26ARTZ-R7 ADM6326-27ARTZ-R7 ADM6326-28ARTZ-R7 ADM6326-29ARTZ-R7 ADM6326-30ARTZ-R7 ADM6326-31ARTZ-R7 ADM6328-22ARTZ-R7 ADM6328-23ARTZ-R7 ADM6328-24ARTZ-R7 ADM6328-25ARTZ-R7 ADM6328-26ARTZ-R7 ADM6328-27ARTZ-R7 ADM6328-28ARTZ-R7 ADM6328-29ARTZ-R7 ADM6328-30ARTZ-R7 ADM6328-31ARTZ-R7 ADM6346-33ARTZ-R7 ADM6346-34ARTZ-R7 ADM6346-35ARTZ-R7 ADM6346-36ARTZ-R7 ADM6346-37ARTZ-R7 ADM6346-38ARTZ-R7 ADM6346-39ARTZ-R7 ADM6346-40ARTZ-R7 ADM6346-41ARTZ-R7 ADM6346-42ARTZ-R7 ADM6346-43ARTZ-R7 ADM6346-44ARTZ-R7 ADM6346-45ARTZ-R7 ADM6346-46ARTZ-R7 ADM6348-33ARTZ-R7 ADM6348-34ARTZ-R7 ADM6348-35ARTZ-R7 ADM6348-36ARTZ-R7 ADM6348-37ARTZ-R7 ADM6348-38ARTZ-R7 ADM6348-39ARTZ-R7 ADM6348-40ARTZ-R7 ADM6348-41ARTZ-R7 ADM6348-42ARTZ-R7 ADM6348-43ARTZ-R7 ADM6348-44ARTZ-R7 ADM6348-45ARTZ-R7 ADM6348-46ARTZ-R7 Typical Threshold Voltage TA = 25°C V RESET Output Structure Push-Pull Push-Pull Push-Pull Push-Pull Push-Pull Push-Pull Push-Pull Push-Pull Push-Pull Push-Pull Open-Drain Open-Drain Open-Drain Open-Drain Open-Drain Open-Drain Open-Drain Open-Drain Open-Drain Open-Drain Push-Pull Push-Pull Push-Pull Push-Pull Push-Pull Push-Pull Push-Pull Push-Pull Push-Pull Push-Pull Push-Pull Push-Pull Push-Pull Push-Pull Open-Drain Open-Drain Open-Drain Open-Drain Open-Drain Open-Drain Open-Drain Open-Drain Open-Drain Open-Drain Open-Drain Open-Drain Open-Drain Open-Drain Package Description 3-Lead SOT-23 3-Lead SOT-23 3-Lead SOT-23 3-Lead SOT-23 3-Lead SOT-23 3-Lead SOT-23 3-Lead SOT-23 3-Lead SOT-23 3-Lead SOT-23 3-Lead SOT-23 3-Lead SOT-23 3-Lead SOT-23 3-Lead SOT-23 3-Lead SOT-23 3-Lead SOT-23 3-Lead SOT-23 3-Lead SOT-23 3-Lead SOT-23 3-Lead SOT-23 3-Lead SOT-23 3-Lead SOT-23 3-Lead SOT-23 3-Lead SOT-23 3-Lead SOT-23 3-Lead SOT-23 3-Lead SOT-23 3-Lead SOT-23 3-Lead SOT-23 3-Lead SOT-23 3-Lead SOT-23 3-Lead SOT-23 3-Lead SOT-23 3-Lead SOT-23 3-Lead SOT-23 3-Lead SOT-23 3-Lead SOT-23 3-Lead SOT-23 3-Lead SOT-23 3-Lead SOT-23 3-Lead SOT-23 3-Lead SOT-23 3-Lead SOT-23 3-Lead SOT-23 3-Lead SOT-23 3-Lead SOT-23 3-Lead SOT-23 3-Lead SOT-23 3-Lead SOT-23 Package Option RT-3 RT-3 RT-3 RT-3 RT-3 RT-3 RT-3 RT-3 RT-3 RT-3 RT-3 RT-3 RT-3 RT-3 RT-3 RT-3 RT-3 RT-3 RT-3 RT-3 RT-3 RT-3 RT-3 RT-3 RT-3 RT-3 RT-3 RT-3 RT-3 RT-3 RT-3 RT-3 RT-3 RT-3 RT-3 RT-3 RT-3 RT-3 RT-3 RT-3 RT-3 RT-3 RT-3 RT-3 RT-3 RT-3 RT-3 RT-3 Branding LAQ LAR LAS LAT LAU LAV LAW LAX LAY LAZ LB0 LB1 LB2 LB3 LB4 LB5 LB6 LB7 LB8 LB9 LBA LBC LBD LBE LBF LBG LBH LCN LCP LCQ LCR LCS LCT LCU LCV LCW LCX LCY LCZ LD0 LD1 LD2 LD3 LD4 LD5 LD6 LD7 LD8 1 Contact sales for the availability of nonstandard models. 2 Z = RoHS Compliant Part. 3 The ADM6326-22ARTZ-R7, the ADM6328-28ARTZ-R7, the ADM6346-33ARTZ-R7, and the ADM6348-46ARTZ-R7 are standard models. ADM6326/ADM6328/ADM6346/ADM6348 NOTES Data Sheet Data Sheet NOTES ADM6326/ADM6328/ADM6346/ADM6348 ADM6326/ADM6328/ADM6346/ADM6348 NOTES Data Sheet Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D08052-0-6/14 A

PDF Datasheet Preview

Data Sheet

Ultralow Power, 3-Lead, SOT-23 Microprocessor Reset Circuits ADM6326/ADM6328/ADM6346/ADM6348

Ultralow supply current of 1 µA maximum ADM6326/ADM6328 Accurate monitoring of V, 3 V, V, and 5 V rails Reset thresholds available in increments from V to V Glitch immunity from negative-going VCC transients 2 reset output options

Push-pull RESET ADM6326/ADM6346 Open-drain RESET ADM6328/ADM6348 Minimum reset timeout of 100 ms Operating temperature range of −40°C to +85°C 3-lead SOT-23 package

Telecommunications Microprocessor systems Desktop and notebook computers Portable equipment

The ADM6326/ADM6328/ADM6346/ADM6348 devices provide low cost solutions for protecting sensitive circuitry, such as microprocessor and telecommunications circuitry.

With built-in glitch immunity, ultralow supply currents, and 24 reset threshold voltage options, the ADM6326/ADM6328/ ADM6346/ADM6348 not only ensure that systems are immune to fast transients on VCC, but also that the devices are suitable for monitoring a variety of supply voltages in low power, portable equipment.

These devices provide a reset output during power-up, powerdown, and brownout conditions. On power-up, an internal timer holds RESET asserted for at least 100 ms. This holds the

FUNCTIONAL BLOCK DIAGRAMS

ADM6326/ADM6346

VREF

RESET GENERATOR
100ms

RESET
08052-001

Figure

ADM6328/ADM6348

VREF

RESET GENERATOR
100ms

RESET
08052-002

Figure
microprocessor in a reset state until conditions have stabilized. The reset output remains operational with VCC as low as 1 V. The ADM6326 and ADM6346 have an active low push-pull reset output. The ADM6328 and ADM6348 have an active low opendrain reset output, which requires an external pull-up resistor. The ADM6326 and ADM6328 offer a choice of ten reset thresholds in increments between V and V, whereas the ADM6346 and ADM6348 offer a choice of 14 reset thresholds between V and V. These devices are available in a 3-lead SOT-23 package and operate over the extended temperature range of −40°C to +85°C.

Document Feedback

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.

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

Tel Analog Devices, Inc. All rights reserved.

Technical Support

ADM6326/ADM6328/ADM6346/ADM6348

TABLE OF CONTENTS

Thermal Resistance 4 ESD 4

Data Sheet

Pin Configuration and Function Typical Performance Characteristics Theory of Operation
Reset Output Interfacing to Other Devices Transient Immunity Outline Dimensions Ordering Guide

Data Sheet

ADM6326/ADM6328/ADM6346/ADM6348

SPECIFICATIONS

TA = −40°C to +85°C, unless otherwise noted. Typical values are at TA = 25°C and VCC = 3 V. Overtemperature limits are guaranteed by design.

Table

Parameter OPERATING VOLTAGE RANGE, VCC INPUT CURRENT, ICC

RESET THRESHOLD Voltage, VTH See Table 2

Temperature Coefficient Hysteresis

ADM6326/ADM6328 ADM6346/ADM6348 TIMING CHARACTERISTICS VCC to Reset Delay tRD Reset Active Timeout Period tRP RESET OUTPUT VOLTAGE LOW, VOL

RESET OUTPUT VOLTAGE HIGH, VOH

OPEN-DRAIN RESET OUTPUT LEAKAGE CURRENT

VTH − VTH − VTH
x VCC x VCC
x VCC

Unit

Test Conditions/Comments

ADM6326/ADM6328 only, VCC = V for VTH

V, VCC = V for VTH > V, no load

VCC = V, no load

VTH + VTH +

V ppm/°C

TA = 25°C

VCC = VTH to VTH − 100 mV

VCC > V, ISINK = mA, reset asserted

VCC V, ISINK = 100 uA, reset asserted

ADM6326 only, VCC = V, ISOURCE = 500 µA

ADM6326/ADM6346 only, VCC = V,

ISOURCE = 800 µA, VTH V

ADM6326/ADM6346 only, VCC = VTH MAX ,

ISOURCE = 800 µA, VTH V

Table Reset Threshold Voltage

Parameter

RESET THRESHOLD VOLTAGE VTH ADM632x-22 ADM632x-23 ADM632x-24 ADM632x-25 ADM632x-26 ADM632x-27 ADM632x-28 ADM632x-29 ADM632x-30 ADM632x-31 ADM634x-33 ADM634x-34 ADM634x-35 ADM634x-36 ADM634x-37 ADM634x-38 ADM634x-39 ADM634x-40 ADM634x-41 ADM634x-42 ADM634x-43 ADM634x-44 ADM634x-45 ADM634x-46

TA = 25°C

TA = −40°C to +85°C

Unit

ADM6326/ADM6328/ADM6346/ADM6348

ABSOLUTE MAXIMUM RATINGS

Table Parameter Supply Voltage, VCC Input Current, ICC Output Voltage

Push-Pull RESET Open-Drain RESET Output Current RESET Rate of Rise of VCC Temperature Storage Operating Soldering 10 sec
ORDERING GUIDE

Model1, 2, 3 ADM6326-22ARTZ-R7 ADM6326-23ARTZ-R7 ADM6326-24ARTZ-R7 ADM6326-25ARTZ-R7 ADM6326-26ARTZ-R7 ADM6326-27ARTZ-R7 ADM6326-28ARTZ-R7 ADM6326-29ARTZ-R7 ADM6326-30ARTZ-R7 ADM6326-31ARTZ-R7 ADM6328-22ARTZ-R7 ADM6328-23ARTZ-R7 ADM6328-24ARTZ-R7 ADM6328-25ARTZ-R7 ADM6328-26ARTZ-R7 ADM6328-27ARTZ-R7 ADM6328-28ARTZ-R7 ADM6328-29ARTZ-R7 ADM6328-30ARTZ-R7 ADM6328-31ARTZ-R7 ADM6346-33ARTZ-R7 ADM6346-34ARTZ-R7 ADM6346-35ARTZ-R7 ADM6346-36ARTZ-R7 ADM6346-37ARTZ-R7 ADM6346-38ARTZ-R7 ADM6346-39ARTZ-R7 ADM6346-40ARTZ-R7 ADM6346-41ARTZ-R7 ADM6346-42ARTZ-R7 ADM6346-43ARTZ-R7 ADM6346-44ARTZ-R7 ADM6346-45ARTZ-R7 ADM6346-46ARTZ-R7 ADM6348-33ARTZ-R7 ADM6348-34ARTZ-R7 ADM6348-35ARTZ-R7 ADM6348-36ARTZ-R7 ADM6348-37ARTZ-R7 ADM6348-38ARTZ-R7 ADM6348-39ARTZ-R7 ADM6348-40ARTZ-R7 ADM6348-41ARTZ-R7 ADM6348-42ARTZ-R7 ADM6348-43ARTZ-R7 ADM6348-44ARTZ-R7 ADM6348-45ARTZ-R7 ADM6348-46ARTZ-R7

Typical Threshold Voltage TA = 25°C V

RESET Output Structure Push-Pull Push-Pull Push-Pull Push-Pull Push-Pull Push-Pull Push-Pull Push-Pull Push-Pull Push-Pull Open-Drain Open-Drain Open-Drain Open-Drain Open-Drain Open-Drain Open-Drain Open-Drain Open-Drain Open-Drain Push-Pull Push-Pull Push-Pull Push-Pull Push-Pull Push-Pull Push-Pull Push-Pull Push-Pull Push-Pull Push-Pull Push-Pull Push-Pull Push-Pull Open-Drain Open-Drain Open-Drain Open-Drain Open-Drain Open-Drain Open-Drain Open-Drain Open-Drain Open-Drain Open-Drain Open-Drain Open-Drain Open-Drain

Package Description 3-Lead SOT-23 3-Lead SOT-23 3-Lead SOT-23 3-Lead SOT-23 3-Lead SOT-23 3-Lead SOT-23 3-Lead SOT-23 3-Lead SOT-23 3-Lead SOT-23 3-Lead SOT-23 3-Lead SOT-23 3-Lead SOT-23 3-Lead SOT-23 3-Lead SOT-23 3-Lead SOT-23 3-Lead SOT-23 3-Lead SOT-23 3-Lead SOT-23 3-Lead SOT-23 3-Lead SOT-23 3-Lead SOT-23 3-Lead SOT-23 3-Lead SOT-23 3-Lead SOT-23 3-Lead SOT-23 3-Lead SOT-23 3-Lead SOT-23 3-Lead SOT-23 3-Lead SOT-23 3-Lead SOT-23 3-Lead SOT-23 3-Lead SOT-23 3-Lead SOT-23 3-Lead SOT-23 3-Lead SOT-23 3-Lead SOT-23 3-Lead SOT-23 3-Lead SOT-23 3-Lead SOT-23 3-Lead SOT-23 3-Lead SOT-23 3-Lead SOT-23 3-Lead SOT-23 3-Lead SOT-23 3-Lead SOT-23 3-Lead SOT-23 3-Lead SOT-23 3-Lead SOT-23

Package Option RT-3 RT-3 RT-3 RT-3 RT-3 RT-3 RT-3 RT-3 RT-3 RT-3 RT-3 RT-3 RT-3 RT-3 RT-3 RT-3 RT-3 RT-3 RT-3 RT-3 RT-3 RT-3 RT-3 RT-3 RT-3 RT-3 RT-3 RT-3 RT-3 RT-3 RT-3 RT-3 RT-3 RT-3 RT-3 RT-3 RT-3 RT-3 RT-3 RT-3 RT-3 RT-3 RT-3 RT-3 RT-3 RT-3 RT-3 RT-3

Branding LAQ LAR LAS LAT LAU LAV LAW LAX LAY LAZ LB0 LB1 LB2 LB3 LB4 LB5 LB6 LB7 LB8 LB9 LBA LBC LBD LBE LBF LBG LBH LCN LCP LCQ LCR LCS LCT LCU LCV LCW LCX LCY LCZ LD0 LD1 LD2 LD3 LD4 LD5 LD6 LD7 LD8
1 Contact sales for the availability of nonstandard models. 2 Z = RoHS Compliant Part. 3 The ADM6326-22ARTZ-R7, the ADM6328-28ARTZ-R7, the ADM6346-33ARTZ-R7, and the ADM6348-46ARTZ-R7 are standard models.

ADM6326/ADM6328/ADM6346/ADM6348 NOTES

Data Sheet

Data Sheet NOTES

ADM6326/ADM6328/ADM6346/ADM6348

ADM6326/ADM6328/ADM6346/ADM6348 NOTES

Data Sheet

Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners.

D08052-0-6/14 A

Notice: we do not provide any warranties that information, datasheets, application notes, circuit diagrams, or software stored on this website are up-to-date or error free. The archived ADM6346-42ARTZ-R7 Datasheet file may be downloaded here without warranties.

Datasheet ID: ADM6346-42ARTZ-R7 517836