UCS2112-2-V/G4

Overview

The UCS2112-2-V/G4 is a dual-channel USB port power controller from Microchip Technology, designed to maximize system reliability and uptime. It features eight programmable continuous current limits per port, ranging from 0.53 A to 3.0 A, supporting faster charging at higher currents. The device operates within a supply voltage range of 4.5 V to 5.5 V and includes integrated current monitoring, precision current limiting, charge rationing, and dynamic thermal management. It utilizes a QFN-20 package with an on-state resistance of 40 mΩ maximum and functions across a temperature range of -40°C to +105°C.

Feature Summary

• Supports two independent ports with individually programmable current limits for optimized power distribution.
• Integrates dynamic thermal management and charge rationing to protect the host system from overheating.
• Provides precise current sensing and monitoring capabilities for enhanced fault detection and system safety.

Applications

• Laptops and tablets requiring robust power management
• Monitors and docking stations needing multi-port power control
• Printers and automotive computing systems

Procurement Notes

Verify component authenticity through authorized Microchip distributors or certified partners. Confirm the specific suffix matches the required package and temperature grade. Check for recent production change notices (PCN) as availability may vary. Ensure compliance with RoHS directives if applicable to your region. Validate that the NRND status does not impact long-term support requirements for your design lifecycle.

Selection Notes

Select this component when dual-port USB power control with high-current capability is required. Compare against the UCS2113 series if increased current limit thresholds are needed instead of programmability. Consider the UCS2112T variant if tape-and-reel packaging is preferred over tube packaging for automated assembly. Evaluate thermal performance in enclosed designs due to the integrated thermal management features.

Part Context

This part belongs to the UCS2112 family of USB port power controllers. It complements other Microchip USB switches by offering advanced programmability rather than fixed thresholds. The family targets applications requiring flexible power allocation across multiple downstream devices while maintaining strict protection protocols.

Replacement Considerations

The UCS2112-1-V/G4 is a related variant within the same family but may differ in packaging or specific configuration details. Verify pin compatibility and functional equivalence before substitution. No direct cross-manufacturer replacements are documented in public sources; redesign may be necessary for alternative suppliers.