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NCP81239MNTXG
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Product Detailed Parameters
- Description：IC REG CTRLR BCK/BOOST I2C 32QFN
- Series：-
- Mfr：onsemi
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Type：PWM Signal
- Function：Step-Up, Step-Down
- Output Configuration：Positive
- Topology：Buck, Boost
- Number of Outputs：1
- Output Phases：2
- Voltage - Supply (Vcc/Vdd)：4.5V ~ 28V
- Frequency - Switching：150kHz ~ 1.2MHz
- Duty Cycle (Max)：-
- Synchronous Rectifier：-
- Clock Sync：Yes
- Serial Interfaces：I2C
- Control Features：Current Limit, Enable, Frequency Control, On Time Control, Ramp, Soft Start
- Operating Temperature：-40°C ~ 100°C (TA)
- Mounting Type：Surface Mount
- Package / Case：32-VFQFN Exposed Pad
- Supplier Device Package：32-QFN (5x5)
- Grade：-
- Qualification：-
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Overview
The NCP81239MNTXG is a USB Power Delivery 4-Switch Buck Boost Controller manufactured by onsemi. It features a single inductor H-bridge topology with integrated MOSFET drivers and supports dynamic switching frequencies from 150 kHz to 1.2 MHz. The device operates within a supply voltage range of 4.5 V to 28 V and accommodates output voltages from 0 V to 20 V via I2C programming. It utilizes dual-edge current mode control for seamless transition between buck and boost modes, ensuring efficient power delivery for applications requiring wide input and output voltage ranges.
Feature Summary
- Supports USB Type-C and Quick Charge protocols with I2C programmable output voltage
- Integrates four MOSFET drivers with adaptive dead-time control to prevent shoot-through
- Features dual-edge current mode control for seamless buck-to-boost transitions
- Includes comprehensive protection mechanisms such as overvoltage, undervoltage, and overcurrent protection
Applications
- USB Type-C power delivery systems
- Quick Charge 2.0/3.0 compatible chargers
- Mobile device charging solutions
- Portable electronics power management
Procurement Notes
Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm the specific ordering suffix matches the required package and temperature grade. Check for any product change notices (PCN) regarding manufacturing location or material composition updates. Ensure compliance with RoHS and REACH regulations as specified in the official datasheet documentation prior to procurement.
Selection Notes
Select this controller for designs requiring wide input voltage flexibility and precise output regulation via digital interface. Consider the I2C compatibility with the system microcontroller logic levels. Evaluate thermal performance requirements given the QFN package and high-frequency operation. Ensure external components support the selected switching frequency and current ratings for the target application efficiency.
Part Context
This component belongs to the NCP81239 family of power management ICs designed for modern fast-charging standards. It addresses the need for compact, efficient power conversion in devices supporting USB PD and QC protocols. The integration of control logic and drivers reduces bill of materials count and board space compared to discrete solutions.
Replacement Considerations
Check for updated variants within the NCP81239 series that may offer enhanced features or different packaging options. Verify pinout compatibility and electrical parameter equivalence if considering alternative suppliers. Review manufacturer lifecycle status to ensure long-term availability for production needs.
