IDT wireless charging P9038 transmitter solution (P9038 main features, functional block diagram and application circuit)

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Abstract: This article mainly introduces the main features of P9038, functional block diagram and typical application circuit, focusing on the introduction of high integration IDT wireless charging solution, IDT wireless charging system and IDTP9038 sending demo version.

Introduction to P9038

P9038 This is a WPC standard wireless power transmitter A5 and A11 designed to comply with WPC specification 1.2.2 from a 5V power supply. Operating in WPC-compatible mode, the integrated full-bridge inverter supports 8W power transmission using the p902x receiver family and ensures that EMIRFI emissions exceed the effective switching requirements of the WPC specification.

With the device and system protection under fault conditions, the p9038 provides resistor-programmable foreign object detection with built-in overcurrent protection, overtemperature protection and programmable overvoltage. This transmitter is very easy to use and offers a complete WPC compatible solution with a minimum number of external components that requires significantly less board space and a lower overall solution cost than competing products.

P9038 features

4.5V to 6.9v input operating voltage range, support:

• USB or AC adapter

• USB dedicated charger port (DCP) detection

• wpc-1.2.2 compatible with A5 or A11 coils

• Integrated high efficiency power stage with low RDS(ON)

• Integrated foreign object detection and current sense

• Excellent EMI performance without EMI filter

• Support 8W power transmission to the receiver

• Demodulate and decode packets fromwpc compatible receivers

• I2C interface for EEPROM access

• Programmable input overvoltage protection

• Programmable soft start

• Current limiting and overheat protection

•40° to 85°C temperature range

• 7 x 7 mm 56-vfqfpn package

Application of P9038

Furniture

PC peripherals

Sturdy electronic gear

home appliances

Battery powered electronic device

IDT P9038 Transmitter Solution

Figure 1. Functional Block Diagram of P9038

IDT P9038 Transmitter Solution

Figure 2. Typical application circuit diagram of P9038

Portable Projector Bluetooth

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