Overview
The ADP1051ACPZ-R7 is an advanced digital controller designed by Analog Devices Inc. for high-density, high-efficiency DC-to-DC power conversion. This controller features a PMBus™ interface, which enables comprehensive monitoring and control of power supply parameters. It is particularly suited for applications requiring high efficiency, reliability, and compact design. The ADP1051 implements voltage mode control with high-speed input line feedforward, enhancing transient and noise performance. It also includes adaptive dead time compensation, low power consumption, and programmable light load mode operation to optimize system efficiency and reduce standby power losses.
Key Specifications
| Parameter | Value | Description |
|---|---|---|
| Package | 24-WFQFN Exposed Pad, CSP | Surface Mount package with exposed pad |
| Number of Pins | 24 | Total number of pins in the package |
| Operating Temperature | -40°C to +125°C | Temperature range for operation |
| Supply Voltage | 3V to 3.6V | Nominal input voltage range |
| Control Mode | Voltage-Mode | Type of control mode used |
| Control Technique | Pulse Width Modulation (PWM) | Method of controlling the power supply |
| Switching Frequency | 625 kHz | Typical switching frequency of the controller |
| Rise Time | 3.5 ns | Typical rise time of the PWM signal |
| Fall Time | 1.5 ns | Typical fall time of the PWM signal |
| Input Capacitance | 2.2 μF | Typical input capacitance required |
| Operating Supply Current | 28.5 mA | Typical current drawn from the supply voltage |
Key Features
- Adaptive Dead Time Compensation: Optimizes efficiency over the load range.
- Low Power Consumption: Typical power consumption of 100 mW.
- Programmable Light Load Mode: Reduces system standby power losses.
- PMBus Compliant: Supports comprehensive monitoring and control through PMBus interface.
- Graphical User Interface (GUI): Easy programming and configuration using a GUI.
- On-Board EEPROM: For programming and data storage.
- Reverse Current Protection: Protects against reverse current flow.
- Pre-Bias Startup: Ensures safe startup in pre-biased conditions.
- Accurate Current Sharing: Between power supplies in parallel operation.
- Conditional Overvoltage Protection: Safely shuts down erroneous power supplies in parallel operation.
Applications
- High Density Isolated DC-to-DC Power Supplies: Ideal for compact, high-efficiency power modules.
- Intermediate Bus Converters: Suitable for high-efficiency intermediate bus power conversion.
- High Availability Parallel Power Systems: Ensures robust operation in parallel and redundant power systems.
- Server, Storage, Industrial, Networking, and Communications Infrastructure: Used in various high-reliability applications.
- Data Centers: Supports efficient and reliable power management in data center environments.
Q & A
- What is the primary function of the ADP1051ACPZ-R7?
The ADP1051ACPZ-R7 is a digital controller designed for high-density, high-efficiency DC-to-DC power conversion, particularly in isolated power supply applications.
- What is the operating temperature range of the ADP1051ACPZ-R7?
The operating temperature range is -40°C to +125°C.
- What is the typical supply voltage for the ADP1051ACPZ-R7?
The typical supply voltage is 3.3V, with a range of 3V to 3.6V.
- What control technique does the ADP1051ACPZ-R7 use?
The ADP1051ACPZ-R7 uses Pulse Width Modulation (PWM) as its control technique.
- What is the switching frequency of the ADP1051ACPZ-R7?
The typical switching frequency is 625 kHz.
- Does the ADP1051ACPZ-R7 support PMBus interface?
Yes, the ADP1051ACPZ-R7 is PMBus compliant, allowing for comprehensive monitoring and control.
- What kind of protection does the ADP1051ACPZ-R7 offer?
The ADP1051ACPZ-R7 offers reverse current protection, pre-bias startup, and conditional overvoltage protection.
- How is the ADP1051ACPZ-R7 programmed?
The ADP1051ACPZ-R7 is programmed using a graphical user interface (GUI) and stores data in an on-board EEPROM.
- What are some typical applications of the ADP1051ACPZ-R7?
Typical applications include high-density isolated DC-to-DC power supplies, intermediate bus converters, and high availability parallel power systems.
- What is the package type of the ADP1051ACPZ-R7?
The ADP1051ACPZ-R7 comes in a 24-WFQFN Exposed Pad, CSP package.
