ADM6346
Ultralow Power, 3-Lead, SOT-23, Microprocessor Reset Circuit, Active-Low Push-Pull Output, 1 µA Supply Current
Top
Overview
Features and Benefits
- Ultralow supply current of 1 μA maximum (ADM6326/ADM6328)
- Accurate monitoring of 2.5 V, 3 V, 3.3 V, and 5 V rails
- Reset thresholds available in increments from 2.2 V to 4.63 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
Product Details
The ADM6326/ADM6328/ADM6346/ADM6348 devices provide low cost solutions for protecting sensitive circuitry, such as micro-processor 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, power-down, and brownout conditions. On power-up, an internal timer holds RESET asserted for at least 100 ms. This holds the 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 open-drain reset output, which requires an external pull-up resistor. The ADM6326 and ADM6328 offer a choice of ten reset thresholds in increments between 2.2 V and 3.08 V, whereas the ADM6346 and ADM6348 offer a choice of 14 reset thresholds between 3.3 V and 4.63 V. Not all options are released for sale as standard models. See the Ordering Guide for details.
These devices are available in a 3-lead SOT-23 package and operate over the extended temperature range of −40°C to +85°C.
Applications
- Telecommunications
- Microprocessor systems
- Desktop and notebook computers
- Portable equipment
Product Categories
Product Lifecycle
Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Documentation & Resources
Design Resources
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.View our quality and reliability program and certifications for more information.
| Part Number | Material Declaration | Reliability Data | Pin/Package Drawing | CAD Symbols, Footprints & 3D Models |
|---|---|---|---|---|
| ADM6346-46ARTZ-R7 | Material Declaration | Reliability Data | 3-Lead SOT-23 | |
| Wafer Fabrication Data |
PCN-PDN Information
Select a model from the dropdown below to subscribe to PCN/PDN notifications and view past notifications as well.
Support & Discussions
ADM6346 Discussions
Sample & Buy
Ordering FAQs
See our Ordering FAQs for answers to questions about online orders, payment options and more.
Buy Now Pricing
(**) Displayed Buy Now Price and Price Range is based on small quantity orders.
List Pricing
(*)The 1Ku list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
Lead Times
Please see the latest communication from our CCO regarding lead times.
Sampling
A Sample link will be shown above, next to the part, only for parts that are included in our sample program. Selecting the Sample button will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.