Overview
The ADM1266ACPZ, produced by Analog Devices Inc., is a highly configurable supervisory and sequencing device designed for complex power management systems. This component offers a comprehensive solution for supply monitoring and sequencing, making it ideal for systems that require precise control over multiple power supplies. The ADM1266 integrates a range of features including supply fault detectors, programmable driver input/outputs (PDIOs), general-purpose inputs/outputs (GPIOs), and an Arm® Cortex-M3 microcontroller. It supports up to 17 supplies and can be expanded to manage up to 257 supplies through its proprietary 2-wire interdevice bus.
Key Specifications
| Parameter | Rating/Specification |
|---|---|
| VHx, PDIOx to GND | 21 V |
| VPx, AVDD_CAP to GND | 5.5 V |
| DACx to GND | 3.6 V |
| REFOUT to GND | 3.6 V |
| ADDR to GND | 3.6 V |
| REFGND, EPAD to GND | -0.3 V to +0.3 V |
| All Other Pins to GND | 3.6 V |
| Maximum Junction Temperature (TJ max) | 150°C |
| Storage Temperature Range | -65°C to +125°C |
| ESD Rating, All Pins | Charged Device Model: 750 V, Human Body Model: 2000 V |
| Supply Voltage Range (VHx) | 0.4 V to 15 V |
| Supply Voltage Range (VPx) | 0.4 V to 5 V |
| Package Type | 9 mm × 9 mm, 64-lead LFCSP-EP |
Key Features
- Complete supervisory and sequencing solution for up to 17 supplies, expandable to 257 supplies with additional ADM1266 ICs.
- 17 supply fault detectors for real-time supervision of supplies.
- 12-bit ADC for readback of all supervised voltages.
- Black box nonvolatile fault recording.
- 16 PDIOs and 9 GPIOs for flexible control and monitoring.
- 9 voltage output 8-bit DACs for voltage margining adjustment via dc-to-dc converter trim/feedback node.
- Main and backup memory for configuration and data storage.
- Industry standard PMBus interface compliant.
- Arm® Cortex-M3 microcontroller with firmware supplied by Analog Devices, configurable through an intuitive graphic user interface (GUI).
Applications
- Communications infrastructure: Ideal for managing power supplies in complex communication systems.
- Industrial test and measurement: Suitable for precise power management in industrial test and measurement equipment.
Q & A
- What is the primary function of the ADM1266?
The ADM1266 is a configurable supervisory and sequencing device designed for supply monitoring and sequencing in systems with multiple power supplies.
- How many supplies can the ADM1266 manage?
The ADM1266 can manage up to 17 supplies directly and can be expanded to manage up to 257 supplies with additional ADM1266 ICs connected via the 2-wire interdevice bus.
- What is the voltage range for the VHx inputs?
The VHx inputs can monitor voltages from 0.4 V to 15 V.
- What type of microcontroller is used in the ADM1266?
The ADM1266 uses an Arm® Cortex-M3 microcontroller.
- How is the device powered?
The device is powered by the higher of the VH1 and VH2 inputs via the supply arbitrator.
- What is the purpose of the 12-bit ADC in the ADM1266?
The 12-bit ADC is used for the readback of all supervised voltages.
- Does the ADM1266 support nonvolatile fault recording?
- What interface does the ADM1266 use for communication?
The ADM1266 uses the industry standard PMBus interface.
- How is the configuration of the ADM1266 performed?
The configuration is performed through an intuitive graphic user interface (GUI) with firmware supplied by Analog Devices.
- What is the package type of the ADM1266?
The ADM1266 is available in a 9 mm × 9 mm, 64-lead LFCSP-EP package.
