ADM1270
RECOMMENDED FOR NEW DESIGNSHigh Voltage Input Protection Device
- Part Models
- 4
- 1ku List Price
- Starting From $1.49
Overview
- Controls supply voltages from 4 V to 60 V
- Gate drive for low voltage drop reverse supply protection
- Gate drive for P-channel FETs
- Inrush current limiting control
- Adjustable current limit
- Foldback current limiting
- Automatic retry or latch-off on current fault
- Programmable current-limit timer for safe operating area (SOA)
- Power-good and fault outputs
- Analog undervoltage (UV) and overvoltage (OV) protection
- 16-lead, 3 mm × 3 mm LFCSP
- 16-lead QSOP
The ADM1270 is a current-limiting controller that provides inrush current limiting and overcurrent protection for modular or battery-powered systems. When circuit boards are inserted into a live backplane, discharged supply bypass capacitors draw large transient currents from the backplane power bus as they charge. These transient currents can cause permanent damage to connector pins, as well as dips on the backplane supply that can reset other boards in the system.
The ADM1270 is designed to control the inrush current, when powering on the system, via an external P-channel field effect transistor (FET).
To protect the system from a reverse polarity input supply, there is a provision made to control an additional external P-channel FET. This feature prevents reverse current flow in case of a reverse polarity connection, which can damage the load or the ADM1270. The ADM1270 is available in a 3 mm × 3 mm, 16-lead LFCSP and a 16-lead QSOP.
Applications
- Industrial modules
- Battery-powered/portable instrumentation
Documentation
Data Sheet 1
User Guide 1
Product Selector Card 1
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 Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| ADM1270ACPZ-R2 | 16-Lead LFCSP (3mm x 3mm w/ EP) | ||
| ADM1270ACPZ-R7 | 16-Lead LFCSP (3mm x 3mm w/ EP) | ||
| ADM1270ARQZ | 16-Lead QSOP | ||
| ADM1270ARQZ-R7 | 16-Lead QSOP |
This is the most up-to-date revision of the Data Sheet.
Software Resources
Can't find the software or driver you need?
Request a Driver/SoftwareTools & Simulations
ADM1270 Design Worksheet Tool
Microsoft Excel download tool from ADIsimPower to generate a power supply design complete with a schematic, bill of materials, and performance specifications
Open ToolEvaluation Kits
ADM1270 Evaluation Board