UCD9090-Q1 - Texas Instruments

UCD9090-Q1 10-Channel Power-Supply Sequencer/Monitor

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 functional.

Features

•1 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)
• Close.