The E522.41/43 is a USB 2.0 compatible power supply with protection features for the automotive environment. Protection includes ISO7637 pulses on the input, as well as short to battery/ground and 2kV ESD (HBM) on the USB bus and data lines.
An I2C interface allows system setup and diagnostics in real time via external microprocessor. Three different I2C bus system addresses are decoded by pin ADR. An internal Switch-Mode Power Supply (SMPS) provides efficient USB 5V supply from either vehicle battery or a lower voltage bus rail. Selectable soft power-up sequence protects the external parts from overload and reduces inrush currents. The switching frequency can be synchronized in Master-Slave configurations with other devices via PLL input. In addition the switchable spread spectrum option reduces EMI.
The E522.41/43 supports USB charging downstream loads according to the Battery Charging Specification Revision 1.2 and various other specific USB charger emulations.
|Part No.||TempJunc Range||Package||Order No.|
|E522.41||-40°C to +150°C||QFN20L5||E52241B62C|
|E522.43||-40°C to +150°C||QFN20L5||E52243B62C|
|Part No.||Description||Board type||Order No.|
|E522.41||Automotive USB Supply with Data-Line Protection and I2C Interface||Evaluation Kit||K52241-0001|