Infineon Technologies CYPDC1185B2-32LQXQ

Overview

CYPDC1185B2-32LQXQ from Cypress Semiconductor is an EZ-PD™ CCG3PA2 USB Type-C Port Controller with Arm® Cortex®-M0 core, dual 64-KB flash banks, integrated USB-PD 3.0 transceiver, VBUS regulation feedback circuitry, and on-chip ±8-kV contact ESD protection. It supports one Type-C port and one legacy Type-A port, delivers QC 4.0/Apple 2.4A/AFC/BC 1.2 charging detection, and operates across –40 °C to +105 °C in a 32-pin QFN package for power adapter and cable applications.

For engineers reviewing the CYPDC1185B2-32LQXQ datasheet, CYPDC1185B2-32LQXQ pinout, CYPDC1185B2-32LQXQ application, or CYPDC1185B2-32LQXQ equivalent, key selection criteria include USB PD3.0 compliance with PPS support, integrated low-side current sense amplifier (100 mA @ 5 mΩ), dual PFET gate drivers for VBUS path control, and hardware-level OVP/OCP/UVP/SCP fault protection without external components.

Technical Context

The CCG3PA2 implements a full USB PD 3.0 physical layer with BMC encoding/decoding on CC lines, configurable RP/RD/RA termination switching, and collision-avoidance half-duplex communication. Its analog feedback loop directly regulates secondary-side VBUS via cathode-compensation pins for AC/DC adapters.

It integrates two 8-bit SAR ADCs (VDDD or bandgap reference), dual SCBs supporting I²C/SPI/UART up to 1 Mbps, four TCPWM blocks, and programmable GPIOs with OVT capability on P0.0/P0.1. Fault mapping allows OCP/OVP/SCP/UVP signals to be routed to dedicated GPIOs or OR'd onto a single indicator pin.

Key Specifications

Pinout & Package

Package: 32-pin QFN (5 mm × 5 mm, 0.5 mm pitch), exposed thermal pad, RoHS-compliant, moisture sensitivity level 3.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar USB Type-C port controller applications.

Compared with STUSB4500QTR and TUSB320LAIRSBT, CYPDC1185B2-32LQXQ uniquely combines PD 3.0 PPS, integrated CSA, analog VBUS regulation, and dual legacy charging detection - enabling single-chip implementation of high-efficiency, multi-protocol AC/DC adapters without external analog support components.

Availability

CYPDC1185B2-32LQXQ is available at Aetrix Electronics and suitable for USB-C power adapters, active cables, and multi-port travel chargers requiring stable component supply, extended temperature operation, and long-term lifecycle support.

Supply support for CYPDC1185B2-32LQXQ includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Cypress Semiconductor (now part of Infineon Technologies) designs high-performance mixed-signal ICs for USB connectivity, programmable systems, and embedded security solutions.

CYPDC1185B2-32LQXQ belongs to the EZ-PD™ CCG3PA2 product line, engineered specifically for intelligent USB Type-C power delivery in compact, thermally constrained adapter and cable applications.

FAQ

Does CYPDC1185B2-32LQXQ support USB PD 3.0 Programmable Power Supply (PPS)?

Yes, CYPDC1185B2-32LQXQ fully supports USB PD 3.0 v1.1 including PPS mode. It implements hardware BMC encoding/decoding and firmware-managed voltage/current negotiation down to 20 mV/50 mA steps. The integrated low-side current sense amplifier and analog feedback control loop enable closed-loop PPS regulation without external components.

What is the function of the VBUS_C_MON_DISCHARGE pin?

VBUS_C_MON_DISCHARGE drives an internal discharge FET to rapidly de-energize VBUS upon detach, meeting USB-PD specification timing (≤1 second to drop from 20 V to 5 V). It is used exclusively on the consumer side and works in conjunction with the VBUS_P_CTRL driver on the provider side for coordinated ramp-down behavior.

Can CYPDC1185B2-32LQXQ detect Apple and Qualcomm QuickCharge 4.0 simultaneously?

Yes. The device contains two independent charger detection blocks: one on DP0/DM0 and another on DP1/DM1. Each block supports BC 1.2, Apple 2.4A, QC 4.0, and Samsung AFC signatures concurrently, allowing simultaneous detection of multiple legacy charging protocols without time-division multiplexing or performance trade-offs.

Is external ESD protection required on CC1/CC2 pins when using CYPDC1185B2-32LQXQ?

No. CYPDC1185B2-32LQXQ provides on-die ±8 kV contact and ±15 kV air-gap ESD protection on CC1, CC2, VCONN, SBU, and DP0/DM0 pins per IEC61000-4-2 Level 4. This eliminates the need for external TVS diodes in most end-equipment designs, reducing BOM cost and PCB area while maintaining system-level robustness.