Overview
The ADM1272-1ACPZ-RL, produced by Analog Devices Inc., is a high-voltage positive hot swap controller and digital power monitor. This component is designed to enable the safe removal or insertion of a circuit board into a live backplane, making it ideal for applications requiring hot swap functionality. The ADM1272 features advanced power monitoring, control, and protection capabilities, including current, voltage, and power readback via an integrated 12-bit analog-to-digital converter (ADC) accessible through a PMBus interface.
Key Specifications
| Parameter | Value |
|---|---|
| Package Type | 48-lead LFCSP (7 mm × 8 mm) |
| Operating Temperature Range | -40°C to 105°C |
| Current Limit Setting Range | 2.5 mV to 30 mV |
| Current Measurement Accuracy | ±0.85% with 12-bit ADC |
| UV and OV Thresholds | 1% accurate, programmable using external resistor dividers |
| PMBus Interface | Fast mode compliant, up to 16 unique I2C addresses |
| GPIO Pins | 2 programmable GPIO pins |
| Power and Energy Telemetry | ILOAD, VIN, VOUT, temperature, power, and energy |
| Start-Up Current Limit | Programmable |
| Output Voltage Soft Start | Programmable linear output voltage soft start |
Key Features
- Programmable random start mode to stagger power-on
- FET fault detection and fast response time (hundreds of ns)
- Remote temperature sensing with programmable warning and shutdown thresholds
- Programmable hot swap restart function
- Peak detect registers for current, voltage, and power
- Cable drop compensation and current limit switches
- Digital power system management and energy monitoring
- High-side switch and MOSFET driver capabilities
- Overvoltage (OV) and undervoltage (UV) protection with independent rising and falling thresholds
Applications
- 48 V/54 V systems
- Servers and data centers
- Power monitoring and control/power budgeting
- Central office equipment
- Telecommunication and data communication equipment
- Industrial applications
Q & A
- What is the primary function of the ADM1272-1ACPZ-RL?
The primary function is to enable hot swap operations in live backplanes while providing advanced power monitoring and protection. - What is the operating temperature range of the ADM1272-1ACPZ-RL?
The operating temperature range is -40°C to 105°C. - How accurate is the current measurement of the ADM1272-1ACPZ-RL?
The current measurement accuracy is ±0.85% with a 12-bit ADC. - What interface does the ADM1272-1ACPZ-RL use for data communication?
The component uses a PMBus interface. - Can the UV and OV thresholds be programmed?
Yes, the UV and OV thresholds can be programmed using external resistor dividers. - What types of telemetry does the ADM1272-1ACPZ-RL support?
The component supports ILOAD, VIN, VOUT, temperature, power, and energy telemetry. - Is the start-up current limit programmable?
Yes, the start-up current limit is programmable. - Does the ADM1272-1ACPZ-RL support remote temperature sensing?
Yes, it supports remote temperature sensing with programmable warning and shutdown thresholds. - What is the purpose of the programmable GPIO pins?
The programmable GPIO pins can be used for various control and monitoring functions. - In what package type is the ADM1272-1ACPZ-RL available?
The component is available in a 48-lead LFCSP (7 mm × 8 mm) package.
