Overview
The ADM1041AARQZ-REEL7, produced by Analog Devices Inc., is a secondary-side controller designed for power supply management. This IC is specifically engineered to minimize external component counts and eliminate the need for manual calibration. It integrates various features such as current sharing, housekeeping, and comprehensive fault detection, making it an efficient solution for complex power supply systems.
Key Specifications
| Parameter | Value |
|---|---|
| Operating Temperature | -40°C to +85°C |
| Package Type | 24-Lead QSOP |
| Packaging | Tape & Reel (TR) |
| EEPROM Capacity | 352 bytes for field data, 160 bytes for calibration |
| Interface | SMBus (I2C-compatible) |
| Protection Features | Overvoltage, undervoltage, overcurrent, overtemperature protection |
Key Features
- Digital calibration via internal EEPROM
- Supports SSI specification
- Comprehensive fault detection
- Reduced component count on secondary side
- Standalone or microcontroller control
- Generates error signal for primary-side PWM
- Output voltage adjustment and margining
- Current sharing and current-limit adjustment
- OrFET control for reduced power dissipation
- Programmable soft-start slew rate
- Differential load voltage sense and AC mains undervoltage detection
- Ground continuity monitoring
Applications
- Network servers
- Web servers
- Power supply control
- PWM controllers
Q & A
- What is the primary function of the ADM1041A? The ADM1041A is a secondary-side controller designed for power supply management, integrating features such as current sharing, housekeeping, and fault detection.
- What is the operating temperature range of the ADM1041AARQZ-REEL7? The operating temperature range is -40°C to +85°C.
- What type of packaging does the ADM1041AARQZ-REEL7 use? It uses Tape & Reel (TR) packaging.
- Does the ADM1041A support SMBus interface? Yes, it supports SMBus (I2C-compatible) interface.
- What protection features are included in the ADM1041A? It includes overvoltage, undervoltage, overcurrent, and overtemperature protection.
- Can the ADM1041A be controlled by a microcontroller? Yes, it can be controlled either standalone or by a microcontroller.
- How does the ADM1041A handle OrFET control? The ADM1041A controls an OrFET to reduce power dissipation across the OR'ing diode and to disconnect the power supply from the load in case of a fault.
- What is the purpose of the EEPROM in the ADM1041A? The EEPROM is used for digital calibration, field data storage, and calibration data storage.
- Does the ADM1041A support differential load voltage sense? Yes, it supports differential load voltage sense and AC mains undervoltage detection.
- What are some common applications of the ADM1041A? Common applications include network servers, web servers, power supply control, and PWM controllers.
