General Description
The MAX14578E/MAX14578AE are USB charger detectors compliant with USB Battery Charging Revision 1.1. The USB charger-detection circuitry detects USB standard downstream ports (SDPs), USB charging down stream ports (CDPs), or dedicated charger ports (DCPs), and controls an external lithium-ion (Li+) battery charger. The devices implement USB Battery Charging Revision 1.1-compliant detection logic including data contact detection, D+/D- short detection, charging downstream port identification, and optional USB dead-battery charging support. Dead-battery charging support features a 45-minute (max) charge timer and weak battery voltage monitor controlled by I2C communication (MAX14578E only.) The MAX14578AE features an enable (EN) input and an LDO output.
FEATUREs
Compliant to USB Battery Charging Revision 1.1
Data Contact Detection for Foolproof Connector Insertion Detection
USB Dead-Battery Charging Support
Charging Downstream Detection
Apple/Sony Charger Detection
Dedicated Charger Detection
China YD/T1591-Compliant Charger Detection
Internal Switches Isolate the USB Transceiver During the Charger Detection Process
VBUS Connection Capable of 28V
Device Status Change Interrupt
Low Supply Current
High-ESD Protection on CD+ and CD-
±15kV Human Body Model
±8kV IEC 61000-4-2 Contact Discharge
APPLICATIONs
DSC and Camcorder
Media Players
Cell Phones
e-Book Readers
Mobile Internet Devices (MIDs)