Overview
The NCP81239MNTXG, produced by onsemi, is a USB Power Delivery (PD) Controller designed as a synchronous buck boost converter. This controller is optimized for converting battery voltage or adaptor voltage into power supply rails required in various consumer devices, including notebooks, tablets, desktops, and other USB PD compliant systems. It is fully compliant with the USB Power Delivery Specification when used in conjunction with a USB PD or C-Type Interface Controller. The NCP81239MNTXG supports dynamic slew rate limited output voltage, allowing it to operate in both buck and boost modes seamlessly.
Key Specifications
| Parameter | Symbol | Min | Max | Units | |
|---|---|---|---|---|---|
| Input Voltage Range | V1 | 4.5 | - | 28 | V |
| Output Voltage Range | Vout | 0.5 | - | 25.5 | V |
| Switching Frequency | fSW | 150 kHz | - | 1.2 MHz | - |
| Current Sense Input Range | CSP1, CSN1, CSP2, CSN2 | -0.3 | - | 28 | V |
| Thermal Shutdown Threshold | TSD | - | - | 151 | °C |
| Package Type | - | - | - | 5x5 mm QFN32 | - |
Key Features
- Wide Input Voltage Range: from 4.5 V to 28 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 primary function of the NCP81239MNTXG?
The NCP81239MNTXG is a USB Power Delivery (PD) Controller that converts battery or adaptor voltage into power supply rails for various consumer devices.
- What is the input voltage range of the NCP81239MNTXG?
The input voltage range is from 4.5 V to 28 V.
- What communication interface does the NCP81239MNTXG use?
The NCP81239MNTXG uses an I2C interface.
- What types of protection does the NCP81239MNTXG offer?
The controller offers over-temperature, over-voltage, and over-current protection.
- What is the typical application range of the NCP81239MNTXG?
It is typically used in notebooks, tablets, desktops, all-in-ones, monitors, TVs, set top boxes, consumer electronics, car chargers, docking stations, and power banks.
- How does the NCP81239MNTXG handle voltage transitions?
The controller supports controlled slew rate voltage transitioning.
- What is the package type of the NCP81239MNTXG?
The package type is 5x5 mm QFN32.
- Does the NCP81239MNTXG support multiple charging profiles?
Yes, it supports USB PD, QC2.0, and QC3.0 profiles.
- How many current sensing inputs does the NCP81239MNTXG have?
The controller has 2 independent current sensing inputs.
- What is the thermal shutdown threshold of the NCP81239MNTXG?
The thermal shutdown threshold is 151°C.
