CHY103 Datasheet | Power Integrations

Description CHY103 is a USB mobile device charger interface IC which implements the Qualm’s Quick Charge 3.0 specification for adaptive voltage battery charging. It incorporates all necessary functions to add Quick Charge 3.0 capability to circuits incorporating Power Integrations’ switcher ICs such as Inno Switch, Tiny Switch, TOPSwitch and other charger solutions employing traditional secondary-side feedback schemes. CHY103 supports the full output voltage range of Quick Charge 3.0, including 200 m V micro-stepped voltage levels from 3.6 V to 12 V (Class A) and up to 20 V (Class B). CHY103 provides a suite of system level protection features protecting the power supply and connected Powered Device (PD) from excessive output voltages, secondary-side thermal overload, and faulty power delivery while adapter is unplugged. Additionally it allows the PD to remotely shutdown the power supply through USB data lines. The shutdown type can be configured as either hysteretic or latching. CHY103 automatically detects whether a connected PD is Quick Charge 3.0 or Quick Charge 2.0 capable before enabling output voltage adjustment. If a PD that is not pliant to Quick Charge 2.0 or 3.0 is detected, the CHY103 disables output voltage adjustment to ensure safe operation with legacy 5 V only USB PDs. Voltage Feedback Network BP D+ TM CHY103 DU1 FA/P Fault Handling Circuit Figure 1. Typical Application Schematic. PI-7612-091015 Figure 2. SO-8 (D Package). VOUT D+ DGND .power. This Product is Covered by Patents and/or Pending Patent Applications. June 2016 BYPASS (BP) 6V FEEDBACK DRIVE (FBD) IT(UP) TEMPERATURE MONITOR (TM) + 2.65 V + VTH(OV) IT(DO) 1.26 V + 100 µA FAULT MONITOR/ PROTECTION MODE (FA/P) 150 µA + 0.325 V BANDGAP CLASS A/B SELECT CONTROL LOGIC (LOOKUP TABLE,...