Overview
The UCD90160ARGCR, produced by Texas Instruments, is a 16-rail PMBus/I2C addressable power supply sequencer and monitor. This device is designed to manage and monitor multiple power rails in complex electronic systems, ensuring proper power sequencing and fault detection. It integrates a 12-bit ADC for monitoring up to 16 power supply voltage inputs and features 26 GPIO pins, 12 of which offer PWM functionality. The UCD90160ARGCR is particularly useful in systems requiring precise power management, such as those implementing the Advanced Configuration and Power Interface (ACPI) specification.
Key Specifications
| Parameter | Specification |
|---|---|
| Package | VQFN (64 pins) |
| Body Size | 9.00 mm × 9.00 mm |
| Operating Temperature Range | -40°C to 125°C |
| ADC Resolution | 12-bit |
| Internal VREF | 2.5 V, 0.5% |
| Sampling Rate | All rails sampled every 400 µs |
| PWM Clock Frequencies | 15.259 kHz to 125 MHz |
| Interfaces | JTAG, I2C/SMBus/PMBus™ |
Key Features
- Monitor and sequence up to 16 voltage rails based on time, rail, and pin dependencies.
- 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 adjusting rail voltage to match user-defined margin thresholds.
- Programmable watchdog timer and system reset.
- Pin-selected rail states for ACPI support, enabling and disabling any rail using up to 3 GPIs.
- Flexible digital I/O configuration and cascading multiple devices for coordinated fault responses.
- Multi-phase PWM clock generator with independent clock outputs for synchronizing switch-mode power supplies.
- Texas Instruments Fusion Digital Power™ designer software for device configuration and monitoring.
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 UCD90160ARGCR?
The primary function of the UCD90160ARGCR is to monitor and sequence up to 16 voltage rails in complex electronic systems, ensuring proper power sequencing and fault detection.
- What interfaces does the UCD90160ARGCR support?
The UCD90160ARGCR supports JTAG, I2C/SMBus/PMBus™ interfaces.
- What is the resolution of the ADC in the UCD90160ARGCR?
The ADC in the UCD90160ARGCR has a 12-bit resolution.
- What is the operating temperature range of the UCD90160ARGCR?
The operating temperature range of the UCD90160ARGCR is -40°C to 125°C.
- How often are all rails sampled by the UCD90160ARGCR?
All rails are sampled every 400 µs by the UCD90160ARGCR.
- What is the purpose of the Pin-Selected Rail States feature?
The Pin-Selected Rail States feature allows enabling and disabling any rail using up to 3 GPIs, useful for implementing system low-power modes and ACPI support.
- Can the UCD90160ARGCR be cascaded with other devices?
- What software is provided for configuring the UCD90160ARGCR?
The Texas Instruments Fusion Digital Power™ designer software is provided for device configuration and monitoring.
- What types of systems typically use the UCD90160ARGCR?
The UCD90160ARGCR is typically used in systems requiring precise power management, such as industrial, telecommunications, servers, and storage systems.
- How does the UCD90160ARGCR handle fault logging?
The UCD90160ARGCR logs nonvolatile error and peak-value data per monitor, storing up to 12 fault detail entries with timestamps.
