CHY103 ChiPhy Family Charger Interface Physical Layer IC with Complete System Level Protection Product Highlights VOUT + D Supports Quick Charge 3.0 Class A and Class B specification - D Adaptive output overvoltage protection (AOVP) GND Secondary over-temperature protection (SOTP) Output soft short-circuit protection (OSSP) Remote shutdown protection (RESP) Enables Powered Device to shutdown adapter Selectable hysteretic or latching shutdown BP Power consumption below 1 mW at 5 V output FBD D+ Supports InnoSwitch, TinySwitch, and TOPSwitch Voltage TM D- CHY103 Feedback Typical Applications U1 Network FA/P R Battery chargers for smart phones, tablets, netbooks, digital cameras, and bluetooth accessories GND USB power output ports such as battery banks or car chargers Fault Description Handling Circuit CHY103 is a USB mobile device charger interface IC which implements the Qualcomms Quick Charge 3.0 specification for adaptive voltage battery charging. It incorporates all necessary functions to add Quick PI-7612-091015 Charge 3.0 capability to circuits incorporating Power Integrations Figure 1. Typical Application Schematic. switcher ICs such as InnoSwitch, TinySwitch, 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 mV 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. Figure 2. SO-8 (D Package). 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 compliant 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. www.power.com September 2015 This Product is Covered by Patents and/or Pending Patent Applications.CHY103 BYPASS REFERENCE (BP) (R) + CLASS A/B SELECT 2.65 V 6 V BANDGAP FEEDBACK DRIVE (FBD) + 2 V V TH(OV) 0.325 V I I D+ T(UP) T(DO) TEMPERATURE CONTROL MONITOR + 900 k LOGIC 1.26 V SET (TM) S Q N1 (LOOKUP D- TABLE, TIMER, FAULTS) R Q CLR 150 A 100 A 0.325 V FAULT MONITOR/ PROTECTION MODE 19.53 k (FA/P) + 2 V 0.325 V GROUND 1 V N2 (GND) PI-7611-090415 Figure 3. Functional Block Diagram. DATA LINE (D+) Pin: Pin Functional Description USB D+ data line input. TEMPERATURE MONITOR (TM) Pin: DATA LINE (D-): Pin: Connection point for optional external temperature sensor (NTC USB D- data line input. resistor). FAULT MONITOR/PROTECTION MODE (FA/P) Pin: Protection mode output driving external shutdown circuitry in case a fault is detected. Optional monitor input for faulty power delivery while output cable is unplugged. GROUND (GND) Pin: D Package (SO-8) Ground. 8 1 FEEDBACK DRIVE (FBD) Pin: TM BP Feedback loop drive output connected to reference input of external 2 7 FA/P R power supply error amplifier to set output voltage. Monitors output 3 6 voltage through voltage divider connected to output rail. GND + D 4 5 BYPASS (BP) Pin: - FBD D Connection point for an external bypass capacitor for the internally generated supply voltage. REFERENCE (R) Pin: Connected to internal band-gap reference. Provides reference PI-7610-040615 current and output voltage range selection (Class A or Class B) Figure 4. Pin Configuration. through connected resistor. 2 Rev. D 09/15 www.power.com + + + +