10-Rail Power Supply Sequencer and Monitor With ACPI Support
Product details
Parameters
Package | Pins | Size
Features
- Monitor and Sequence 10 Voltage Rails
- All Rails Sampled Every 400 µs
- 12-bit ADC with 2.5-V, 0.5% Internal VREF
- Sequence 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 26 Fault Detail Entries)
- Closed-Loop Margining for 10 Rails
- Margin Output Adjusts Rail Voltage to Match User-Defined Margin Thresholds
- Programmable Watchdog Timer and System Reset
- Flexible Digital I/O Configuration
- Response and Monitor to GPI-Triggered Fault
- Easily Cascade multiple Power Sequencers and Take Coordinated Fault Responses
- Pin-Selected Rail States
- Cascading Multiple Devices
- Multiphase PWM Clock Generator
- Clock Frequencies From 15.259 kHz to
125 MHz - Capability to Configure Independent Clock Outputs for Synchronizing Switch-Mode Power Supplies
- Clock Frequencies From 15.259 kHz to
- JTAG and I2C/SMBus/PMBus™ Interfaces
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Description
The UCD9090A is a 10-rail PMBus/I2C addressable power supply sequencer and monitor. The device integrates a 12-bit ADC for monitoring up to 10 power supply voltage inputs. Twenty-three GPIO pins can be used for power supply enables, power-on reset signals, external interrupts, cascading, or other system functions. Ten of these pins offer PWM functionality. Using these pins, the UCD9090A offers support for margining, and general-purpose PWM functions.
Specific power states can be achieved using the Pin-Selected Rail States feature. This feature allows with the use of up to 3 GPIs to enable and disable any rail. This is useful for implementing system low-power modes and the Advanced Configuration and Power Interface (ACPI) specification that is used for hardware devices.
The TI Fusion Digital Power™ designer software is provided for device configuration. This PC-based graphical user interface (GUI) offers an intuitive interface for configuring, storing, and monitoring all system operating parameters.
Technical documentation
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Hardware development
Description
Features
- Monitor and Sequence 10 Voltage Rails
- Non-Volatile Error and Peak-Value Logging per Monitor (up to 30 faults)
- Closed Loop Margining for 10 Rails
- Pin-Selected Rail States
- Multiphase PWM Clock Generator
- Programmable Watchdog Timer and System Reset
- Flexible Digital I/O Configuration
- Internal Temperature (...)
Description
This EVM serves as an interface adapter or a bridge between a host PC (IBM™ compatible) and one or multiple slave devices via a standard type-A to mini-B USB cable. The communication between the USB interface adapter and the host PC is via USB, while the communication between the USB interface (...)
Features
- Supports master mode I²C, SMBus or PMBus as well as GPIO.
- Supports USB1.1 full speed at 12 Mbit/s. The USB interface adapter is recognized by the host as a generic human interface device (HID), so no proprietary USB or HID driver is needed. Therefore, the USB interface adapter can be treated as a (...)
Software development
Features
Some of the tasks you can perform with the GUI include:
- Turn on or off the power supply output, either through the hardware control line or the PMBus OPERATION command
- Monitor real-time data. Items such as input voltage, output voltage, output current, temperature, and warnings/faults are continuously (...)
Design tools & simulation
Features
- Leverages Cadence PSpice Technology
- Preinstalled library with a suite of digital models to enable worst-case timing analysis
- Dynamic updates ensure you have access to most current device models
- Optimized for simulation speed without loss of accuracy
- Supports simultaneous analysis of multiple products
- (...)
CAD/CAE symbols
| Package | Pins | Download |
|---|---|---|
| VQFN (RGZ) | 48 | View options |
Ordering & quality
- RoHS
- REACH
- Device marking
- Lead finish/Ball material
- MSL rating/Peak reflow
- MTBF/FIT estimates
- Material content
- Qualification summary
- Ongoing reliability monitoring
Support & training
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