Overview
The UCD9080RHBRG4, produced by Texas Instruments, is an 8-channel power supply sequencer and monitor. This device is designed to control the enable sequence of up to eight independent voltage rails and provides additional features such as monitoring and configuration through an I2C interface. It operates from a single 3.3-V supply voltage and is known for its low power consumption, making it suitable for various applications requiring precise power sequencing and monitoring.
Key Specifications
| Parameter | Min | Nom | Max | Unit |
|---|---|---|---|---|
| Supply Voltage | 3 | 3.3 | 3.6 | V |
| Operating Temperature | -40 | 85 | °C | |
| Supply Current (at 25°C) | 3 | 4 | mA | |
| Voltage Sampling Resolution | 3.2 mV | |||
| SCL Clock Frequency | 10 | 100 | kHz | |
| Output Fall Time (with 10 pF to 400 pF bus capacitance) | 250 ns |
Key Features
- Sequences and monitors up to eight independent voltage rails.
- Single supply voltage of 3.3 V with low power consumption.
- Rail voltages sampled every 50 µs with 3.2-mV resolution.
- Four configurable digital outputs for power-on reset and other functions.
- Flexible rail sequencing based on time, parent rail regulation, or parent rail voltage.
- Under- and overvoltage thresholds settable per rail with alarm conditions and timestamps.
- I2C interface for configuration and monitoring.
- Microsoft® Windows® GUI available for configuration and monitoring.
Applications
- Servers and data centers.
- Networking equipment.
- Telecommunications switches.
- Test equipment.
- Any system requiring sequencing of multiple rail voltages.
Q & A
- What is the primary function of the UCD9080?
The UCD9080 is an 8-channel power supply sequencer and monitor, designed to control the enable sequence of up to eight independent voltage rails.
- What is the operating supply voltage of the UCD9080?
The UCD9080 operates from a single 3.3-V supply voltage.
- How often are the rail voltages sampled by the UCD9080?
Rail voltages are sampled every 50 µs.
- What is the resolution of voltage sampling by the UCD9080?
The voltage sampling resolution is 3.2 mV.
- How many configurable digital outputs does the UCD9080 have?
The UCD9080 has four configurable digital outputs.
- What interface is used for configuration and monitoring of the UCD9080?
The UCD9080 uses an I2C interface for configuration and monitoring.
- What types of applications is the UCD9080 suitable for?
The UCD9080 is suitable for servers, networking equipment, telecommunications switches, test equipment, and any system requiring sequencing of multiple rail voltages.
- Can the UCD9080 be configured to shut down specific rails based on certain conditions?
Yes, the UCD9080 can be configured to shut down specific rails based on under- and overvoltage thresholds, parent rail regulation, or other defined conditions.
- Is there a GUI available for configuring and monitoring the UCD9080?
Yes, a Microsoft® Windows® GUI is available for configuration and monitoring of the UCD9080.
- What is the typical operating temperature range of the UCD9080?
The typical operating temperature range is from -40°C to 85°C.
