Texas Instruments' model UCD90120ARGCT is a power monitoring chip, a 12-rail PMBus/I2C addressable power sequencer and monitor. Specific power states can be achieved using the pin select rail state feature. This feature allows up to 3 GPIs to be used to enable and disable any voltage rail.
The UCD90120ARGCT integrates a 12-bit ADC that can monitor up to 12 supply voltage inputs. The 26 GPIO pins can be used for power enable, power-on reset signals, external interrupts, cascading, or other system functions. Twelve of these pins provide PWM functionality. With these pins, the UCD90120ARGCT supports margining as well as general-purpose PWM functionality. With these pins, the UCD90120ARGCT supports margining as well as general-purpose PWM functionality.
Functional features of UCD90120ARGCT
1. Can monitor and sort 12 voltage rails;
2. All voltage rails are sampled every 400µs;
3. 12-bit ADC with 2.5V, 0.5% internal VREF;
4. Sorting is based on time, voltage rail and pin correlation;
5. Each monitor has 4 programmable undervoltage and overvoltage thresholds;
6. Each monitor can provide non-volatile error and peak log records (up to 12 detailed fault entries);
7. Closed-loop margin adjustment capability for 10 voltage rails;
8. Margin output adjusts rail voltage to match user-defined margin threshold;
9. Programmable watchdog timer and system reset;
10. Flexible digital I/O configuration;
11. Pin select voltage rail status;
12. Multi-phase PWM clock generator;
13. The clock frequency is 15.259kHz to;
14, 125MHz;
15. Able to configure independent clock output for synchronous switching mode power supply;
16. JTAG and I2C/SMBus/PMBus™ interface.
Application field of UCD90120ARGCT
UCD90120ARGCT can provide reliable power control and management functions for various systems. Its main application areas are as follows:
1. Power management system: UCD90120ARGCT can be used for switching power supply control in power management systems to achieve high-efficiency energy conversion and power management, and improve the energy consumption performance of the system.
2. Industrial automation: UCD90120ARGCT can be used in drive control systems in the field of industrial automation, such as servo drives, DC motor drives, etc., to achieve precise current and speed control.
3. Communication base station: UCD90120ARGCT can be used for power management and power control in communication base stations, providing stable and efficient power output to ensure the stable operation of communication equipment.
4. LED lighting system: UCD90120ARGCT can be used for drive control in LED lighting systems, providing accurate and stable current output to achieve brightness adjustment and color control of LED lights.
5. Automotive electronics: UCD90120ARGCT can be used in power management and power control in automotive electronics, such as automotive internal power control modules, electric vehicle charging piles, etc., to provide efficient and safe power management functions.
Parameters of UCD90120ARGCT
Brand: Texas Instruments
Product Category: Power Monitoring Chip
Working temperature: -40℃~+110℃(TA)
Installation type: SMT
Package/Case: VQFN64
Type: Sequencer
Length x Width/Dimensions: 9.00 x 9.00mm
Reset threshold voltage: adjustable/selectable
Height: 1.00mm
Number of pins: 64Pin
Reset: active high/active low
Pin diagram of UCD90120ARGCT
Package diagram of UCD90120ARGCT
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