Renesas IDTP9038

Description

The IDTP9038 is a WPC-compliant Wireless Power Transmitterfor A5 and A11 designs operating from 5V supplies whichconforms with WPC Specification 1.1. Operating in the WPCcompliantmode, the integrated full-bridge inverter supports 8Wpower transfer utilizing the IDTP902X Receiver family, andensures efficient switching with EMI/RFI emissions that arebetter than the requirements of the WPC specification.An embedded microcontroller provides extensive control &application flexibility. In addition to implementing the WPCspecifieddevice identification and a closed-loop control protocolwhich constantly adjusts transmitted power, the IDTP9038features a proprietary back-channel communication modecompatible with other IDT Wireless Power products, providingsecure authentication with data encryption using a Secure HashAlgorithm (SHA) of up to 64 bits.Featuring programmable multi-layer Foreign Object Detectionand built-in Over-Current, Over-Voltage, and Over-TemperatureProtection, the IDTP9038 is extremely easy to use and providesa complete WPC-compliant solution with minimum externalparts count, requiring significantly less board space and lowertotal solution cost than competing products. It is available in acompact 7mm x 7mm VQFN package. A complete Evaluation kitis available with an easy-to-use GUI interface, which allowsusers to quickly verify system performance and implementWPC-compliant designs with minimal effort.

Features

• Input voltage range: 4.5 – 6.9V
• WPC 1.1 compliant for A5 or A11-type coils
• Integrated power stage
  • Very low RDS(ON) offering high efficiency
  • Minimizes real estate & BOM cost
• Integrated foreign object detection & current sens
• Proprietary slew rate control for best in class EMI
  • Eliminates EMI filter
• Supports up to 8W receiver power transfer
• Input Source Voltage Flexibility
  • USB or AC adaptor
• Demodulates and Decodes Communication Packetsfrom WPC-compliant Receivers
• Optional Proprietary Back-Channel Communication
• Security and Encryption up to 64-bit
• USB Interface Supports High Current Charging withD+ / D- detection

• Master/Slave I2C Interface

  -programme voltage protection

• Programmable input in-rush current
• Current limit and over-temperature protection
• -40 to +85°C temperature range
• Available in VFQFN- 7mm X 7mm 56 pin

Typical applications

• PC peripherals
• Furniture
• Small appliances
• Rugged electronic gear
• Battery-powered electronics

More information

• Datasheet
• IC product information