Document Number: MC34827 Freescale Semiconductor Rev. 3.0, 6/2014 Technical Data Mini or Micro-USB Interface IC 34827 The 34827 is a dedicated IC for managing charging and signal multiplexing between a cell phone and its accessory via a 5-pin Mini or Micro-USB connector. An external power source, such as a dedicated AC/DC adapter or a standard USB port, is able to charge the battery in INTERFACE IC the cell phone via the connector. The 34827 is capable of identifying the type of the external power source and selecting one of two battery charge current levels according to the type. The internal power switch can protect the phone system against 28 V power supply input. The 34827 is also able to multiplex the 5 pins to support UART and High- Speed USB 2.0 data communication, mono/stereo-audio/microphone headset with or without a cord remote control, manufacturing or R/D test cables and other accessories. (PB-FREE) To identify what accessory is plugged into the Mini or Micro-USB (PB-FREE) 98ASA00050D 98ASA00037D connector, the 34827 supports various detection mechanisms, 20-PIN UTQFN-EP 20-PIN UTQFN-EP including the VBUS detection and ID detection. A high accurate 5-bit ADC is offered to distinguish the 32 levels of ID resistance and to identify the button pressed in a cord remote control while an Audio Applications Type 1 cable is attached. After identifying the accessory attached, the Cell phones 34827 configures itself to support the accessory and interrupts a host 2 MP3/MP4 players via an I C serial bus for further actions. The 34827 is also able to identify some non-supported accessory, such as video cable, Phone- Portable voice recorders Powered Devices and USB OTG devices. The host controls the 34827 USB universal charging solution (UCS-OMTP) 2 via the I C serial bus. This device is powered using SMARTMOS Supports mini/micro - USB connector technology. UART and USB high speed communication Features Remote control/accessories IDs Automatically identifies the power supply type and sets one of two battery-charge-current levels Internal power switch protects the phone system against 28 V power supply input Supports stereo/mono headset with or without micro phone and remote control Supports USB or UART test and R/D cables High speed USB2.0 compliant Supports 32 ID resistance values with a high-accuracy 5-bit ADC 2 I C interface with interrupt to the host 10 A quiescent current in Standby mode 34827 BASEBAND VDDIO VDD Charger GPIO INTB Li+ I2C SDA 2 I C I2C SCL RXD ISET UART TXD D+ OUT USB XCVR D- V VBUS BUS JIG Test Port BOOT ID SPK L ID Audio SPK R D+ DP MIC D- DM GND GND USB CONNECTOR Figure 1. MC34827 Simplified Application Diagram Freescale Semiconductor, Inc., 2011 - 2014. All rights reserved.1 Orderable Parts Table 1. Orderable Part Variations (1) Temperature (T ) Package Part Number A MC34827A2EP 3.0 mm X 4.0 mm UTQFN-EP -40 to 85 C MC34827A1EP 3.0 mm X 3.0 mm UTQFN-EP Notes 1. To order parts in Tape and Reel, add the R2 suffix to the part number. MC34827 Analog Integrated Circuit Device Data 2 Freescale Semiconductor