Overview
The ADM1272-1ACPZ is a high-performance hot swap controller designed by Analog Devices Inc. This device enables the safe insertion and removal of circuit boards from live backplanes, making it ideal for high-voltage systems. It features advanced power monitoring, current, voltage, and power readback through an integrated 12-bit analog-to-digital converter (ADC), accessible via a PMBus interface. The ADM1272-1ACPZ is robust, capable of withstanding up to 120 V, and includes various protection mechanisms such as overvoltage (OV) and undervoltage (UV) protection, and programmable current limits.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Test Conditions/Comments |
|---|---|---|---|---|---|
| Operating Voltage Range (VCC) | 16 | 80 | V | VCC ≥ VSENSE+, VSENSE+ = 16 V to 80 V, TJ = −40°C to +125°C | |
| Undervoltage Lockout (VCCUV) | 13 | 16 | V | VCC rising | |
| Undervoltage Hysteresis (VCCUVHYS) | 70 | 115 | mV | ||
| Quiescent Current (ICC) | 6 | mA | GATE on and power monitor running | ||
| Power-On Reset (POR) Time (tPOR) | 27 | ms | |||
| Operating Temperature Range | −40 | 125 | °C | ||
| Package Type | 48-lead LFCSP (7 mm × 8 mm) |
Key Features
- Programmable random start mode to stagger power-on
- FET fault detection and remote temperature sensing with programmable warning and shutdown thresholds
- Programmable 2.5 mV to 30 mV system current-limit setting range
- ±0.85% accurate current measurement with 12-bit ADC
- ILOAD, VIN, VOUT, temperature, power, and energy telemetry
- Programmable start-up current limit and linear output voltage soft start
- 1% accurate UV and OV thresholds
- Programmable hot swap restart function
- 2 programmable GPIO pins
- Reports power and energy consumption
- PMBus fast mode compliant interface
Applications
- 48 V/54 V systems
- Servers
- 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? The primary function is to enable safe insertion and removal of circuit boards from live backplanes while providing advanced power monitoring and protection.
- What is the operating voltage range of the ADM1272-1ACPZ? The operating voltage range is from 16 V to 80 V.
- What type of interface does the ADM1272-1ACPZ use for data communication? It uses a PMBus interface.
- What kind of protection mechanisms does the ADM1272-1ACPZ include? It includes overvoltage (OV) and undervoltage (UV) protection, as well as programmable current limits.
- What is the accuracy of the current measurement in the ADM1272-1ACPZ? The current measurement is accurate to ±0.85% with a 12-bit ADC.
- Can the ADM1272-1ACPZ be used in high-temperature environments? Yes, it can operate in temperatures ranging from −40°C to +125°C.
- What is the package type of the ADM1272-1ACPZ? It is available in a 48-lead LFCSP (7 mm × 8 mm) package.
- Does the ADM1272-1ACPZ support remote temperature sensing? Yes, it supports remote temperature sensing with programmable warning and shutdown thresholds.
- How many GPIO pins are available on the ADM1272-1ACPZ? There are 2 programmable GPIO pins available.
- What are some typical applications of the ADM1272-1ACPZ? Typical applications include 48 V/54 V systems, servers, power monitoring and control, central office equipment, telecommunication and data communication equipment, and industrial applications.
