The UP1728PDDA is a highly integrated power management IC (PMIC) manufactured by UPI (uPI Semiconductor Corp.). It is designed for USB Power Delivery (PD) applications, particularly in portable devices, power adapters, and other systems requiring efficient and versatile power conversion and control. This PMIC incorporates multiple functionalities to streamline system design and enhance performance.

Applications:

• USB Power Delivery (PD) chargers and adapters
• Portable devices (smartphones, tablets, laptops)
• Power banks
• Docking stations
• USB-C peripherals

Features:

• Integrated USB PD controller: Handles the USB PD protocol negotiation and power delivery control.
• High-efficiency DC-DC converters: Provides efficient power conversion to different voltage rails required by the system.
• Over-voltage protection (OVP): Protects the system from excessive input voltage.
• Over-current protection (OCP): Protects the system from excessive output current.
• Short-circuit protection (SCP): Protects the system from short-circuit conditions.
• Over-temperature protection (OTP): Protects the IC from overheating.
• Programmable output voltage and current limits: Allows for flexible configuration to meet specific system requirements.
• I2C communication interface: Enables communication with a host controller for monitoring and control.
• Low quiescent current: Minimizes power consumption in standby mode.

Benefits:

• Simplified system design: Integration of multiple functions reduces the number of external components required.
• Improved efficiency: High-efficiency DC-DC converters minimize power loss and improve battery life.
• Enhanced system protection: Comprehensive protection features ensure system reliability and prevent damage.
• Flexible configuration: Programmable output voltage and current limits allow for customization to meet specific application needs.
• Reduced BOM cost: Integration reduces the overall bill of materials (BOM) cost.
• Compact size: Small package size makes it suitable for portable devices.

The UP1728PDDA's integrated USB PD controller manages the negotiation process with the connected device, determining the optimal voltage and current levels for power delivery. The high-efficiency DC-DC converters ensure that power is delivered efficiently, minimizing heat generation and maximizing battery life in portable applications. The various protection features, including OVP, OCP, SCP, and OTP, safeguard the system from potential damage due to over-voltage, over-current, short circuits, or overheating. The I2C interface allows a host controller to monitor the PMIC's status and adjust its settings as needed.

This PMIC is a suitable choice for applications that require a compact, efficient, and reliable power management solution for USB Power Delivery.