iW620 Product Summary Quick Charge 2.0 USB Adaptive Voltage Position Controller 1.0 Features 2.0 Description Supports Qualcomm Quick Charge 2.0 (QC2.0) High The iW620 is a Qualcomm QC2.0 compatible USB Voltage Dedicated Charging Port (HVDCP) Class A adaptive voltage position controller for use in HVDCP with voltage configuration of 5V, 9V, and 12V AC/DC chargers/adapters. The device allows fast charging of QC2.0-enabled portable devices (PDs). The iW620 resides Backward compatible with USB Battery Charging on the secondary side of an AC/DC power supply and allows the Specification Revision 1.2 (USB BC1.2) Dedicated adapter to be configured for 5V, 9V, or 12V output depending Charging Port (DCP) on the voltage requested by the PD. It can be used in Dialogs Programmable active fast discharge from 9V/12V to 5V primary-side controlled AC/DC systems to achieve fast voltage at USB cable unplug or from a high voltage level to a transition, low no-load power consumption and fast dynamic lower level upon request with built-in switch or external load response. The iW620 eliminates shunt regulator and switch loop compensation components at the secondary side and it has a built-in opto-coupler LED driver to minimize the bill of Normally OFF state with <120 mA cut-off current during material cost. 5V steady-state operation to achieve <30mW power consumption at no load Dialogs innovative proprietary technology ensures that power supplies designed with the iW620 and Dialogs Wide operating voltage range from 3V to 25V primary-side controller can achieve 5V/9V/12V output voltage Built-in opto-coupler LED driver with minimum driving configuration, low no-load power consumption with 5V output, current of 2mA and fast dynamic load response in typical quick charge AC/ DC charger/adapter designs. 6-lead SOT-23 package 3.0 Applications Fast-charging AC/DC chargers/adapters for smart phones, tablets, and other portable devices L V OUT + + N RTN Configures 9V U1 or 12V output 3 2 1 iW1760 V DRV DIS CC 1 8 U2 V V SENSE CC + iW620 2 SD GND 7 D- GND D+ 4 5 6 3 OUTPUT 6 NTC CFG 4 I 5 ASU SENSE D+ R CDC D- IN1+ IN1 OUT1 OUT2 IN2+ COMPARATOR IN2 Figure 3.1: iW620 Typical Application Circuit for 3-Level Output Voltage (Using iW1760 as Primary-Side Controller. Achieving Low No-Load Power Consumption) iW620 Rev. 0.9 Preliminary Product Summary 1 of 4 2014 Dialog Semiconductor (UK) Ltd. NOT RECOMMENDED FOR NEW DESIGNSiW620 Product Summary Quick Charge 2.0 USB Adaptive Voltage Position Controller 4.0 Pinout Description iW620 1 6 DIS D+ 2 5 GND DRV 3 4 VCC D- Figure 4.1: 6 Lead SOT-23 Package Pin Name Type Pin Description Analog Discharging circuit and external FET drive. Used for fast discharging of 1 DIS Output output capacitor. Also can be used for driving external FET. Analog External circuit drive. Can be used for opto-coupler LED drive with 2 DRV Output automatic current limiting. 3 V Power Supply IC power supply. CC 4 D- Analog Input USB D- signal. 5 GND Ground Ground. 6 D+ Analog Input USB D+ signal. 5.0 Absolute Maximum Ratings Absolute maximum ratings are the parameter values or ranges which can cause permanent damage if exceeded. Parameter Symbol Value Units DIS (pin 1) voltage V 30 V DIS DRV (pin 2) voltage V 30 V DRV Vcc (pin 3) voltage V 30 V CC D- (pin 4) voltage V -0.3 to 7 V D- D+ (pin 6) voltage V -0.3 to 7 V D+ Continuous DC current at DRV pin (V = 11V) I 25 mA DRV DRV Continuous DC supply current at V pin (V = 12V) I 25 mA CC CC VCC Peak current at DIS pin (V = 12V) I 600 mA DIS DIS Maximum junction temperature T 150 C JMAX ESD rating per JEDEC JESD22-A114 (D+ and D- pins) 4,000 V ESD rating per JEDEC JESD22-A114 (all other pins) 2,000 V iW620 Rev. 0.9 Preliminary Product Summary 2 of 4 2014 Dialog Semiconductor (UK) Ltd. NOT RECOMMENDED FOR NEW DESIGNS