CYPD2122-24LQXIT

CYPD2122-24LQXIT is a USB Type-C Power Delivery (PD) controller IC from Cypress Semiconductor (now Infineon). It provides the Type-C port management and PD negotiation logic needed to implement USB-C power delivery in devices such as chargers, hubs, adapters, and docks. The device handles CC line detection, PD contract negotiation, VBUS control/discharge, and safe port operation, typically interfacing with a host MCU via I2C for configuration.
Key points:
- Type-C PD controller with integrated CC logic and VBUS control
- Configured and monitored over I2C
- Packaged in a 24-pin LQFN (code LQXIT)
Typical applications include USB-C power adapters, PD-enabled hubs, docking stations, and other consumer/embedded products requiring compliant Type-C power delivery. For exact electrical specs, PD revision support, and firmware examples, refer to the official Cypress/Infineon datasheet and application notes.

Equivalent PD controller parts for CYPD2122-24LQXIT (USB-C PD controller) include:
- STUSB4500 / STUSB4501
- STUSB1602
- NXP PTN5100 / PTN5150
- Onsemi FUSB302 (FUSB302P)
- TI TPS65988 / TPS65983
Note: pinout/features vary; use a cross-reference (DigiKey/Mouser) to find pin-compatible substitutes.

CYPD2122-24LQXIT features (high level):
- USB Type-C Port Controller with USB Power Delivery (PD) 2.0/3.0 negotiation engine.
- Dual-Role Port (DRP) with auto or configurable role swap.
- I2C interface for configuration, status readouts, and fault management.
- CC logic for cable orientation detect, CC line control, and Rp/Rd handling.
- VBUS power-path control via external high-side FETs, plus VBUS sensing and discharge control.
- VCONN switch control for active cables that require VCONN.
- PD contract support to negotiate and advertise source/sink capabilities.
- Protection and safety: overvoltage, overcurrent/short-circuit protection, UVLO/OTP/thermal protection.
- Interrupts/status outputs for faults and events; suitable for system integration.
- 24-pin LQXIT package (compact, suitable for portable/applications).
- Typical operating with standard USB-C/PD voltage range up to 20V (PD-enabled designs).
- Applications: USB-C ports on chargers, power banks, docking stations, portable devices.
Note: For exact electrical specs, voltages, timing, and register map, consult the Cypress/Cypress Semiconductor datasheet for CYPD2122-24LQXIT.

- Pin count: 24 pins (24‑LQXIT package)
- Function: USB Type‑C Port Controller with USB Power Delivery (PD) support. It provides CC line detection/negotiation, role (source/sink) management, and controls/interfaces with external FETs for VBUS (and VCONN as needed) to implement a dual‑role Type‑C port.

Manufacturer: Cypress Semiconductor Corporation (a subsidiary of Infineon Technologies AG since 2020).
What kind of company: A semiconductor company that designs and manufactures integrated circuits and embedded ICs (e.g., microcontrollers, memory, USB/PD controllers) for electronics applications.

Applications of CYPD2122-24LQXIT:
- USB Type-C Power Delivery source/sink controllers in chargers, adapters, and power banks
- USB-C docking stations and hubs with PD negotiation
- PD-enabled devices such as laptops, tablets, and smartphones over USB-C
- Industrial and automotive power management using Type-C PD
- USB-C accessories requiring CC logic and PD negotiation (cables, test equipment)
Note: It’s a USB-C PD controller used to manage PD communication, VBUS control, and safety protections in PD-enabled products.

CYPD2122-24LQXIT uses a 24‑pin LQX package (24‑lead quad flat package), industrial temperature, tape-and-reel.