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reference designIDTP9038

Renesas IDTP9038

Industry’s First 5V Single IC Transmitter Solution Supporting WPC1.1 for A5 & A11

Overview

TopologyWireless Power Transfer
Input voltage4.5-6.9 V
Switching frequency110-205 kHz
Output 12.5 V

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

Products

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760308111
SPECWE-WPCC Wireless Power Transfer Transmitter Coil, Qi - A11; MP-A11, 53 x 53 x 6 mm
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Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-WPCC Wireless Power Transfer Transmitter Coil
ComplianceQi - A11; MP-A11 
Size53 x 53 x 6 mm 
Inductance6.3 µH
Rated Current13 A
DC Resistance25 mΩ
Self Resonant Frequency11 MHz
Q-Factor80 
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