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.
|Number of supplies monitored|
|VCC (Min) (V)|
|VCC (Max) (V)|
|Iq (Typ) (uA)|
|Time Delay (ms)|
|Number of sequenced outputs|
|Package size: mm2:W x L (PKG)|
|VQFN | 48||VQFN | 64||VQFN | 64||VQFN | 64||NFBGA | 169|
|48VQFN: 49 mm2: 7 x 7 (VQFN | 48)||64VQFN: 81 mm2: 9 x 9 (VQFN | 64)||64VQFN: 81 mm2: 9 x 9 (VQFN | 64)||64VQFN: 81 mm2: 9 x 9 (VQFN | 64)||169NFBGA: 144 mm2: 12 x 12 (NFBGA | 169)|
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