Overview
The UCD90320ZWST is a 32-rail PMBus™ addressable power sequencer and system manager produced by Texas Instruments. This device is designed for controlling and monitoring power sequencing and system management in complex digital systems. It is packaged in a compact 0.8-mm pitch NFBGA (ZWS) package with 169 pins, operating within a temperature range of -40°C to 85°C.
Key Specifications
| Parameter | Description |
|---|---|
| Package | NFBGA-169 (12x12) |
| Pins | 169 |
| Supply Voltage (min) | 3.15 V |
| Supply Voltage (max) | 3.63 V |
| Number of Sequenced Outputs | 32 |
| Number of Supplies Monitored | 32 |
| Operating Temperature Range (°C) | -40 to 85 |
| Iq (typ) (mA) | 31.4 |
Key Features
- Sequence, monitor, and margin 24 voltage rails plus 8 digital rails.
- Monitor and respond to OV, UV, OC, UC, temperature, time-out, and GPI-triggered faults.
- Flexible sequence-on and off dependencies, delay time, Boolean logic, and GPIO configuration to support complex sequencing applications.
- Four rail profiles for adaptive voltage identification (AVID) voltage regulator.
- High-accuracy closed-loop margining and active trim function to improve rail output voltage accuracy.
- Advanced nonvolatile event logging, including single-event fault log (100 entries), peak value log, and black box fault log.
- Easily cascade up to 4 power sequencers and take coordinated fault responses.
- Programmable watchdog timer and system reset.
- Pin-selected rail state and PMBus™ 1.2 compliant.
- Dual-bank configurations to provide a fail-safe state when programming.
Applications
The UCD90320ZWST is designed for use in complex digital systems that require precise control and monitoring of power distribution. It is particularly useful in applications such as data centers, cloud computing infrastructure, telecommunications equipment, and other high-density computing environments where reliable and flexible power management is crucial.
Q & A
- Q: What is the primary function of the UCD90320ZWST?
A: The UCD90320ZWST is a 32-rail PMBus™ addressable power sequencer and system manager designed for controlling and monitoring power sequencing and system management in complex digital systems.
- Q: Can the UCD90320ZWST be cascaded for controlling more than 32 power channels?
A: Yes, multiple UCD90320ZWST devices can be cascaded to manage up to 128 voltage rails through one SYNC_CLK pin connection.
- Q: Is the UCD90320ZWST compatible with standard I2C interfaces?
A: Yes, the UCD90320ZWST integrates with standard I2C interfaces, providing ease of integration and compatibility with a wide range of microcontrollers and communication modules.
- Q: What is the operating temperature range of the UCD90320ZWST?
A: The UCD90320ZWST operates within a temperature range of -40°C to 85°C.
- Q: How many GPIO pins does the UCD90320ZWST have and what are their configurations?
A: The UCD90320ZWST has 84 GPIO pins, which can be configured as digital monitors, power supply enables, margining pins, logical GPO, and GPIs for cascading and system functions.
- Q: What advanced logging features does the UCD90320ZWST offer?
A: The UCD90320ZWST offers advanced nonvolatile event logging, including single-event fault log (100 entries), peak value log, and black box fault log to assist system debugging.
- Q: Can the UCD90320ZWST implement system low-power modes?
A: Yes, the UCD90320ZWST can implement system low-power modes as outlined in the Advanced Configuration and Power Interface (ACPI) specification using pin-selected rail states.
- Q: What software tool is available for configuring the UCD90320ZWST?
A: The TI Fusion Digital Power™ designer software is an intuitive PC-based graphic user interface (GUI) that can configure, store, and monitor all system operating parameters.
- Q: Is the UCD90320ZWST RoHS compliant?
A: Yes, the UCD90320ZWST is RoHS compliant.
- Q: What is the typical current consumption (Iq) of the UCD90320ZWST?
A: The typical current consumption (Iq) of the UCD90320ZWST is 31.4 mA.
