Features
- Power transfer up to 15W at receiver side
- Wide input voltage range: 5V to 19V
- WPC-1.2.4 compatible, MP-A11 coil configuration
- Supports system parameters configuration using a GUI
- Integrated drivers for external power MOSFETs
- Embedded 32-bit ARM® Cortex®-M0 processor (trademark of ARM, Ltd.)
- Simultaneous voltage and current demodulation scheme for WPC communication
- Integrated current sense amplifier
- Supports accurate 127.7kHz frequency operation
- Feedback control for external input step-down regulator
- Dedicated remote temperature sensing
- User-programmable power transfer LED indicators
- User-programmable foreign objects detection (FOD)
- WPC EPP-based Q-factor detection
- Active-LOW enable pin for electrical on/off
- Over-current and over-temperature protection
- Supports I2C interface
- -40°C to +85°C ambient operating temperature range
- 48-VFQFPN (6 × 6 mm) RoHS-compliant package
Description
The P9243-GB is a highly integrated, magnetic induction, wireless power transmitter that supports up to 15W in compliance with the WPC-1.2.4 specification or proprietary applications. It is compatible with all popular wireless charging protocols including the WPC Baseline Power Profile (BPP), Extended Power Profile (EPP), up to 7.5W charging for iPhones, and Samsung Fast Charge. This system-on-chip solution (SoC) operates with an input voltage range of 5V to 19V.
The P9243-GB transmitter IC includes an industry-leading 32-bit ARM® Cortex®-M0 processor, offering a high level of programmability and extremely low standby power consumption. The P9243-GB has only pre-programmed bootloader firmware in the internal memory, and must be used in conjunction with an external flash memory that contains application firmware. This architecture gives the user the flexibility to change the firmware in the external flash to meet application-specific requirements. For a sizeable business opportunity, the application firmware can also be loaded into the internal OTP memory and flash can be removed.
The device is specially designed to support fixed frequency operation as described in the WPC MP-A11 coil configuration with an external input step-down buck regulator. It uses an external oscillator for very accurate 127.7kHz fixed frequency operation.
The P9243-GB is available in a lead-free, space-saving 48-VFQFPN package. The product is rated for a -40ºC to +85ºC operating temperature range.
Support Communities
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Wireless charging IC - P9243-GB / Full Bridge LC Circuit
... fine-tune the output voltage of the buck regulator. Thus, the output of the step-down buck regulator is connected to the input of the P9243-GB full-bridge inverter. To respond to an increase or decrease in the power request from receiver, the P9243-GB regulates the duty ratio ...
Aug 12, 2022 -
P9243-GB continues to attempt charge with FOD present
Hi Renesas Team, I am using P9243-GB in my application and I managed to tune the FOD thresholds for my receiver. However, when I tested the receiver by placing a small metal piece (FO) between RX and TX, P9243 stops charging for a moment and again attempts to charge ...
Oct 28, 2022 -
P9243-GB / step-down buck regulator
Hi Renesas, I am working on a wireless power Transmitter (wireless charger) P9243-GB, the P9243-GB via GIPO_B7, generates a PWM signal and controls the feedback pin of the step-down regulator, so I would like to know more in detail about how this affects the voltage on ...
Aug 5, 2022
Support Communities
