USB Interface IC 20-Pin UTQFN EP T/R

The MC34827 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 the cell phone via the connector. The MC34827 is capable of identifying the type of the external power source and selecting one of two battery charge current levels according to the type.

Automatically Identifies the Power Supply Type and Sets One of Two Battery-Charge-Current Levels

Internal Power Switch Protects the Phone System against 28V 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

I2C Interface with Interrupt to the Host

10µA Quiescent Current in Standby Mode