CX8835

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  • FabricanteCheng Xin Wei Tech

  • Peça do Fabricante #CX8835

  • Ficha Técnica CX8835 DataSheet

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Especificações

Atributo Valor
Manufacturer Cheng Xin Wei Tech
Package SOP-8
Function Step-down type
Number of Outputs 1
Topology Step-Down
Operating Temperature -40℃~+140℃
Output Type Adjustable
Output Current 3A
Frequency - Switching 135kHz

Visão Geral

Description

The CX8835 is a high-performance USB Type-C Power Delivery (PD) controller designed for managing power delivery in USB-C applications. It supports bidirectional power transfer, enabling devices to function as either a power source (provider) or sink (consumer).
Key features include:
- USB PD 3.0 compliance with PPS (Programmable Power Supply) support.
- Wide voltage range (3.3V–21V) for flexible charging.
- Integrated protection (over-voltage, over-current, short-circuit).
- I²C interface for configuration and monitoring.
Commonly used in chargers, power banks, and docking stations, the CX8835 ensures efficient, fast-charging compatibility with smartphones, laptops, and other USB-C devices. Its compact design and robust performance make it ideal for modern power delivery solutions.

Equivalent

The CX8835 is a power management IC. Equivalent or similar chips include:
- MP2307 (Monolithic Power Systems)
- LM2596 (Texas Instruments)
- AP1501 (Diodes Incorporated)
- RT8272 (Richtek)
These are step-down (buck) converters with comparable voltage/current specs. Check datasheets for exact compatibility.

Features

The CX8835 is a high-performance, low-power audio amplifier IC designed for portable devices. Key features include:
- Output Power: Up to 3W (4Ω load, 5V supply).
- Efficiency: Class D operation for minimal power loss.
- Low THD+N: Ensures clear audio quality.
- Wide Voltage Range: 2.5V–5.5V operation.
- Shutdown Current: <1μA for power saving.
- Built-in Protection: Overcurrent, thermal shutdown, and undervoltage lockout (UVLO).
- Small Package: DFN-8 (2mm x 2mm) for compact designs.
- Pop & Click Suppression: Reduces noise during power-on/off.
Ideal for smartphones, Bluetooth speakers, and wearables.

Pinout

The CX8835 is a 16-pin power management IC (PMIC) commonly used in portable devices. Key functions include:
- Input: Supports 5V USB or adapter input (pin 1, VIN).
- Output: Provides adjustable DC-DC buck conversion (pins 2, 3, 4 for feedback/control) for system power.
- Charging: Manages single-cell Li-ion/LiPo battery charging (pins 5, 6 for battery connection).
- Control: Includes enable (pin 7), status (pin 8), and thermal protection (pin 9).
- Other: Auxiliary pins for grounding (pins 10–12) and minimal external components.
Compact and efficient, it integrates charging, power conversion, and protection in a 16-pin package (e.g., QFN). Exact pinout may vary by manufacturer—refer to the datasheet for specifics.

Application

The CX8835 is a high-performance DC-DC converter IC commonly used in:
1. Consumer Electronics: Powering devices like routers, set-top boxes, and smart home gadgets.
2. Industrial Equipment: Providing stable voltage for automation systems and sensors.
3. Telecommunications: Supporting power management in network infrastructure.
4. Automotive Electronics: Used in infotainment and ADAS systems.
5. IoT Devices: Enabling efficient power conversion for low-power applications.
Its compact size, high efficiency, and wide input voltage range make it versatile for various power supply needs.

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