Packaging information
| Package | Pins VQFN (RGZ) | 48 |
| Operating temperature range (°C) -40 to 125 |
| Package qty | Carrier 2,500 | LARGE T&R |
Features for the UCD9090-Q1
- Qualified for automotive applications
- AEC-Q100 qualified with the following results:
- Device temperature grade 1: –40°C to 125°C ambient operating temperature range
- Device HBM ESD classification level H2
- Device CDM ESD classification level C4B
- UCD9090-Q1 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 30 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
- Pin-selected rail states
- Cascading multiple devices
- Multi-phase 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
Description for the UCD9090-Q1
The UCD9090-Q1 is a 10-rail PMBus and 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 UCD9090-Q1 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 provides device configuration. This PC-based user interface (UI) offers an intuitive interface for configuring, storing, and monitoring all system operating parameters.