The most current UCD90xxx PMBus™ Command Reference is available at http://www.ti.com/fusiondocs
The UCD90120 Power Supply Sequencer and System Health Monitor monitors and sequences up to 12 independent voltage rails. The device integrates a 12-bit ADC with a 2.5V internal reference for monitoring up to 13 power supply voltage, current, or temperature inputs.
26 GPIO pins can be used for power supply enables, power-on reset signals, external interrupts, cascading multiple UCD90120 devices, or other system functions. 12 of these pins can be used as PWM outputs for power supply margining or general-purpose PWM functions including clock generation for switch-mode power supplies.
The TI Fusion Digital Power Designer 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.
The UCD90120 has an I2C/PMBus/SMBus communication interface for pre-production and in-system configuring and monitoring and a JTAG Port for production programming.
|Part number||Order||Number of supplies monitored||VCC (Min) (V)||VCC (Max) (V)||Iq (Typ) (uA)||Time delay (ms)||Number of sequenced outputs||Rating||Package Group||Package size: mm2:W x L (PKG)|
||13||50000||Programmable||12||Catalog||VQFN | 64||64VQFN: 81 mm2: 9 x 9 (VQFN | 64)|
||13||3||3.6||50000||Programmable||12||Catalog||VQFN | 64||64VQFN: 81 mm2: 9 x 9 (VQFN | 64)|
||12||3||3.6||50000||Programmable||12||Catalog||VQFN | 64||64VQFN: 81 mm2: 9 x 9 (VQFN | 64)|