Overview
The UCD90160RGCR, produced by Texas Instruments, is a 16-rail PMBus/I2C addressable power-supply sequencer and monitor. This device is designed to integrate a 12-bit ADC for monitoring up to 16 power-supply voltage inputs, making it highly versatile for complex electronic systems. It supports various system functions, including power supply enables, power-on reset signals, external interrupts, and cascading. The UCD90160 is particularly useful in implementing system low-power modes and adhering to the Advanced Configuration and Power Interface (ACPI) specification. The device is configured using the TI Fusion Digital Power™ designer software, a PC-based graphical user interface (GUI) that simplifies the configuration, storage, and monitoring of system operating parameters.
Key Specifications
| Parameter | Value |
|---|---|
| Package Type | VQFN (RGC) |
| Pins | 64 |
| Operating Temperature Range (°C) | -40 to 125 |
| Package Size (mm) | 9.00 x 9.00 |
| Thickness (mm) | 0.88 |
| Pitch (mm) | 0.5 |
| Max Height (mm) | 1 |
| ADC Resolution | 12-bit |
| Internal VREF (V) | 2.5-V, 0.5% accuracy |
| GPIO Pins | 26 (12 with PWM functionality) |
| Clock Frequencies | 15.259 kHz to 125 MHz |
| Interfaces | JTAG, I2C/SMBus/PMBus™ |
Key Features
- Monitors and sequences up to 16 voltage rails with sampling every 400 µs.
- Four programmable undervoltage and overvoltage thresholds per monitor.
- Nonvolatile error and peak-value logging per monitor (up to 12 fault detail entries).
- Closed-loop margining for up to 10 rails with margin output adjustment.
- Programmable watchdog timer and system reset.
- Pin-selected rail states for ACPI support using up to 3 GPIs.
- Flexible digital I/O configuration.
- Multiphase PWM clock generator with configurable independent clock outputs.
- JTAG and I2C/SMBus/PMBus™ interfaces.
Applications
- Industrial and Automated Test Equipment (ATE).
- Telecommunications and networking equipment.
- Servers and storage systems.
- Systems requiring sequencing and monitoring of multiple power rails.
Q & A
- What is the primary function of the UCD90160RGCR?
The UCD90160RGCR is a 16-rail PMBus/I2C addressable power-supply sequencer and monitor, designed to monitor and sequence multiple power rails in complex electronic systems.
- What is the resolution of the ADC in the UCD90160RGCR?
The UCD90160RGCR integrates a 12-bit ADC for monitoring power-supply voltage inputs).
- How many GPIO pins does the UCD90160RGCR have, and what is their functionality?
The device has 26 GPIO pins, with 12 of these pins offering PWM functionality. These pins can be used for various system functions such as power supply enables, power-on reset signals, and external interrupts).
- What is the operating temperature range of the UCD90160RGCR?
The operating temperature range is -40°C to 125°C).
- What interfaces does the UCD90160RGCR support?
The device supports JTAG, I2C/SMBus, and PMBus™ interfaces).
- How does the Pin-Selected Rail States feature work?
This feature allows the use of up to 3 GPIs to enable and disable any rail, which is useful for implementing system low-power modes and adhering to the ACPI specification).
- What is the purpose of the TI Fusion Digital Power™ designer software?
The TI Fusion Digital Power™ designer software is a PC-based graphical user interface (GUI) used for configuring, storing, and monitoring all system operating parameters of the UCD90160RGCR).
- What types of applications is the UCD90160RGCR suitable for?
The UCD90160RGCR is suitable for industrial and ATE, telecommunications and networking equipment, servers and storage systems, and any system requiring sequencing and monitoring of multiple power rails).
- Can the UCD90160RGCR perform margining for the power rails?
Yes, the UCD90160RGCR can perform closed-loop margining for up to 10 voltage rails and actively trim DC output voltages using the same margining circuitry).
- How does the UCD90160RGCR handle fault logging and system troubleshooting?
The device logs faults to nonvolatile flash memory, which is useful for system troubleshooting. It also has status registers for each rail and a fault log available in the Fusion GUI).
