Overview
The NCP81239AMNTXG, produced by onsemi, is a USB Power Delivery (PD) 4-Switch Buck Boost Controller designed for converting battery or adapter voltage into power supply rails required in various consumer devices. This controller is fully compliant with the USB Power Delivery Specification and is optimized for use in notebook, tablet, desktop systems, and other consumer electronics using USB PD standard and C-Type cables.
The NCP81239AMNTXG operates with a wide input voltage range from 4.5 V to 32 V and supports dynamically programmed frequency from 150 kHz to 1.2 MHz. It features an I2C interface, real-time power good indication, and controlled slew rate voltage transitioning, making it versatile for multiple applications.
Key Specifications
| Parameter | Symbol | Min | Typ | Max | Units |
|---|---|---|---|---|---|
| Input Voltage Range | V1 | 4.5 | - | 28 | V |
| Driver Input Voltage | VDRV | 4.5 | - | 5.5 | V |
| Internal Regulator Output | VCC | 4.5 | - | 5.5 | V |
| Switching Frequency | - | 150 kHz | - | 1.2 MHz | - |
| Output Voltage Accuracy | VFB | 0.495 | 1.188 | 2.02 | V |
| Thermal Shutdown Threshold | TSD | - | - | 151 | °C |
| Package Type | - | - | - | QFN32 5x5 mm | - |
Key Features
- Wide Input Voltage Range: from 4.5 V to 32 V
- Dynamically Programmed Frequency from 150 kHz to 1.2 MHz
- I2C Interface
- Real Time Power Good Indication
- Controlled Slew Rate Voltage Transitioning
- Feedback Pin with Internally Programmed Reference
- Support for USB PD, QC2.0, and QC3.0 Profiles
- 2 Independent Current Sensing Inputs
- Over Temperature Protection
- Adaptive Non-Overlap Gate Drivers
- Filter Capacitor Switch Control
- Over-Voltage and Over-Current Protection
- Dead Battery Power Support
Applications
- Notebooks, Tablets, Desktops
- All in Ones
- Monitors, TVs, and Set Top Boxes
- Consumer Electronics
- Car Chargers
- Docking Stations
- Power Banks
Q & A
- What is the input voltage range of the NCP81239AMNTXG?
The input voltage range is from 4.5 V to 32 V.
- What is the switching frequency range of the NCP81239AMNTXG?
The switching frequency can be dynamically programmed from 150 kHz to 1.2 MHz.
- Does the NCP81239AMNTXG support I2C communication?
- What types of protection does the NCP81239AMNTXG offer?
- Can the NCP81239AMNTXG operate in both buck and boost modes?
- What is the package type of the NCP81239AMNTXG?
- Does the NCP81239AMNTXG support multiple current sensing inputs?
- How is the output voltage profile adjusted in the NCP81239AMNTXG?
- What is the thermal shutdown threshold of the NCP81239AMNTXG?
- Does the NCP81239AMNTXG support dead battery power?
