iW1790 Highly Integrated AC/DC Primary-Side Rapid ChargeTM PWM Controller Supporting XM-Comm Technology 1 Description The iW1790 is a high performance AC/DC power supply controller for rapid charge that uses main transformer communication (XM-Comm) technology to minimize external component count and simplify system design. The device operates in quasi-resonant mode to provide high efficiency and it also provides a number of key built-in protection features. The iW1790 can achieve tight multi-level constant voltage and multi-level constant current regulation without a traditional secondary feedback circuit. It also eliminates the need for loop compensation components while maintaining stability over all operating conditions. The iW1790 is optimized to work with Dialog’s iW660/2/3 secondary-side controllers for various rapid charge protocols, such as Samsung Adaptive Fast Charge (AFC) (iW660), Qualcomm® Quick ChargeTM 2.0 and 3.0 (QC2.0: iW660/2/3; QC3.0: iW662) technologies, Huawei Fast Charger Protocol (FCP) (iW663), etc. to achieve fast and smooth voltage transitions upon request by mobile devices (MD). When paired with the iW660/2/3, the iW1790 completely eliminates the optocoupler between the primary and secondary side. Using Dialog’s proprietary transformer communication technology, XM-Comm, the iW660/2/3 can communicate with the iW1790 to send output voltage requests, output current limits, output voltage undershoot and over voltage information without any additional external components. The iW1790 paired with the iW660/2/3 can provide fast dynamic load response in typical AC/DC rapid charge adapter designs. In addition, the iW1790 uses source charging technology to charge up VCC before startup, which eliminates the external active start-up (ASU) circuit and still can achieve < 20mW no-load power consumption at 5V/2A output setting. Dialog’s innovative proprietary technology ensures that power supplies designed with the iW660/2/3 and iW1790 can provide the required output voltage configurations for AFC/QC2.0/QC3.0/FCP and other proprietary protocols, with various user-selected output current limit combinations. Qualcomm® Quick ChargeTM 2.0 and 3.0 are products of Qualcomm Technologies, Inc. 2 Features ●● Integrated XM-Comm technology eliminates secondary-to-primary optocoupler ●● Multi-mode PWM/PFM control improves efficiency at various load conditions ●● Transformer communication for all the rapid charge information: output voltage request, output current limit, output voltage undershoot, and over-voltage protection ●● User-configurable 4-level cable drop compensation independent of output voltage ●● EZ-EMI® design enhances manufacturability ●● Source charging VCC technology eliminates the active start-up (ASU) and maintain ultra-low no-load power consumption (<20mW) at 230VAC with typical 5V/2A output setting ●● High VCC pin voltage rating eliminates external VCC LDO ●● Tight multi-level constant-voltage and multi-level constant-current regulation with primary-side feedback and control ●● Fast dynamic load response (DLR) ●● Built-in single-point fault protections against output short-circuit including soft short and half short, output over-voltage, and output over-current ●● SmartDefender+TM control technology addresses issues of soft shorts in cables and connectors by effectively reducing the average output power at fault conditions without latch ●● Dual over-temperature protection with both internal OTP and external shutdown control ●● No audible noise over entire operating range ●● Proprietary optimized load adaptive maximum constant ●● Supports rapid charge technologies, such as AFC, QC 2.0 and 3.0 technologies, FCP, etc. frequency PWM switching with quasi-resonant operation achieves best size, efficiency, and common mode noise Product Summary www.dialog-semiconductor.com Rev. 1.1 1 of 7 11-Jan-2018 © 2018 Dialog Semiconductor iW1790 Highly Integrated AC/DC Primary-Side Rapid ChargeTM PWM Controller Supporting XM-Comm Technology 3 Applications ●● Rapid-charging AC/DC adapters for smart phones, tablets and other portable devices (3.6V-12V, 1A-3A). L + + + COUT N VOUT - R1 NTC GND 2 SD 3 VSENSE 4 CFG GND U1 iW660/2/3 U1 iW1790 1 VBUS VCC 8 GATE 7 SOURCE 6 ISENSE 5 1 DRAIN SD 10 2 DIS VIN 9 3 D- VCC 8 4 SOURCE GND 7 5 D+ OUT 6 D- R2 D+ Figure 2.1 : iW1790 Typical Application Circuit for Multi-Level Output Voltage and Current (Using iW660/2/3 as Secondary-Side Controller for Rapid Charge Protocols. Achieving < 20mW No-Load Power Consumption in Typical 15W Design.) Product Summary www.dialog-semiconductor.com Rev. 1.1 2 of 7 11-Jan-2018 © 2018 Dialog Semiconductor iW1790 Highly Integrated AC/DC Primary-Side Rapid ChargeTM PWM Controller Supporting XM-Comm Technology 4 Pinout Description iW1790 1 GND 2 SD 3 VSENSE 4 CFG VCC 8 GATE 7 SOURCE 6 ISENSE 5 Figure 4.1 : 8-Lead SOIC-8 Package Pin Number Pin Name Type 1 GND Ground 2 SD Analog Input SD function for external shutdown control. Can be configured for external over-temperature protection (OTP) by connecting an NTC resistor from this pin to Ground. 3 VSENSE Analog Input Auxiliary voltage sense. Used for primary-side regulation and secondary-to-primary communication through main transformer. 4 CFG Analog Input Used for CDC configuration and auxiliary winding open protection. 5 ISENSE Analog Input Primary-side current sense. Used for cycle-by-cycle peak-current control and limit in primary-side CV/CC regulation. 6 SOURCE Power Input Connect to the source of external power MOSFET. Inside the IC, it is connected to internal MOSFET and startup VCC charge circuit. 7 GATE Output 8 VCC Power Input Product Summary www.dialog-semiconductor.com Pin Description Ground. Gate drive for external MOSFET switch. IC power supply. Rev. 1.1 3 of 7 11-Jan-2018 © 2018 Dialog Semiconductor iW1790 Highly Integrated AC/DC Primary-Side Rapid ChargeTM PWM Controller Supporting XM-Comm Technology 5 Absolute Maximum Ratings Absolute maximum ratings are the parameter values or ranges which can cause permanent damage if exceeded. For maximum safe operating conditions, refer to the Electrical Characteristics section. Parameter Symbol Value Units DC supply voltage range (pin 1, ICC = 20mA max) VCC -0.3 to 45.0 V Continuous DC supply current at VCC pin (VCC = 15V) ICC 20 mA VSENSE input (pin 3, IVsense ≤ 10mA) -0.7 to 10.0 V CFG (pin 4) -0.7 to 5.0 V SD (pin 2) -0.3 to 5.5 V ISENSE input (pin 5) -0.7 to 5.0 V SOURCE input (pin 6) -0.7 to 25.0 V -0.3 to 30 V GATE (pin 7) Maximum junction temperature TJMAX 150 °C Operating junction temperature TJOPT -40 to 150 °C Storage temperature TSTG -65 to 150 °C θJA 160 °C/W ±2,000 V ±100 mA Thermal resistance junction-to-ambient ESD rating per JEDEC JESD22-A114 Latch-up test per JESD78D Note 1: Stresses beyond those listed under “Absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, so functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specification are not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. Product Summary www.dialog-semiconductor.com Rev. 1.1 4 of 7 11-Jan-2018 © 2018 Dialog Semiconductor iW1790 Highly Integrated AC/DC Primary-Side Rapid ChargeTM PWM Controller Supporting XM-Comm Technology 6 Physical Dimensions Product Summary www.dialog-semiconductor.com Rev. 1.1 5 of 7 11-Jan-2018 © 2018 Dialog Semiconductor iW1790 Highly Integrated AC/DC Primary-Side Rapid ChargeTM PWM Controller Supporting XM-Comm Technology 7 Ordering Information Options Part Number Secondary-Side Controller iW1790-00 Protocol Supported Default kCC at Start-up CC Shutdown Voltage kCC Compensation for VBUS > 6V Package Description iW660-02 AFC 0.5 3.3V for VBUS = 5V; 6.5V for VBUS = 9V No SOIC-8 Tape & Reel1 iW1790-07 iW662-01/iW662-02 QC2.0/QC3.0 0.5 2.9V Yes SOIC-8 Tape & Reel1 iW1790-08 iW662-00/iW662-05 QC2.0/QC3.0 0.422 6.5V for VBUS = 9V, 66% of VBUS for other VBUS2 No SOIC-8 Tape & Reel1 iW1790-09 iW662-01/iW662-02 QC2.0/QC3.0 0.5 2.9V No SOIC-8 Tape & Reel1 iW1790-12 iW663-02 FCP/QC2.0 Supports 5.25V/9V VBUS 0.422 3.0V for VBUS < 9V; 6.5V for VBUS = 9V No SOIC-8 Tape & Reel1 iW1790-18 iW662-18 QC2.0/QC3.0/PE 0.422 3.0V for VBUS = 5V; 6.5V for VBUS = 9V No SOIC-8 Tape & Reel1 iW1790-19 iW662-03 QC2.0/QC3.0/PE 0.5 2.9V Yes SOIC-8 Tape & Reel1 Note 1: Tape & Reel packing quantity is 2,500/reel. Minimum packing quantity is 2,500. Note 2: Clamped to 2.9V if 66% of VBUS ≤ 2.9V. Note 3: Additional features and options may be available; contact Dialog Semiconductor. Product Summary www.dialog-semiconductor.com Rev. 1.1 6 of 7 11-Jan-2018 © 2018 Dialog Semiconductor iW1790 Highly Integrated AC/DC Primary-Side Rapid ChargeTM PWM Controller Supporting XM-Comm Technology Disclaimer Information in this document is believed to be accurate and reliable. However, Dialog Semiconductor does not give any representations or warranties, expressed or implied, as to the accuracy or completeness of such information. Dialog Semiconductor furthermore takes no responsibility whatsoever for the content in this document if provided by any information source outside of Dialog Semiconductor. Dialog Semiconductor reserves the right to change without notice the information published in this document, including without limitation the specification and the design of the related semiconductor products, software and applications. Applications, software, and semiconductor products described in this document are for illustrative purposes only. Dialog Semiconductor makes no representation or warranty that such applications, software and semiconductor products will be suitable for the specified use without further testing or modification. Unless otherwise agreed in writing, such testing or modification is the sole responsibility of the customer and Dialog Semiconductor excludes all liability in this respect. Customer notes that nothing in this document may be construed as a license for customer to use the Dialog Semiconductor products, software and applications referred to in this document. Such license must be separately sought by customer with Dialog Semiconductor. All use of Dialog Semiconductor products, software and applications referred to in this document are subject to Dialog Semiconductor’s Standard Terms and Conditions of Sale, available on the company website (www.dialog-semiconductor.com) unless otherwise stated. Dialog and the Dialog logo are trademarks of Dialog Semiconductor plc or its subsidiaries. All other product or service names are the property of their respective owners. Qualcomm is a trademark of Qualcomm Incorporated, registered in the United States and other countries. Qualcomm Quick Charge is a trademark of Qualcomm Incorporated. All Qualcomm Incorporated marks are used with permission. © 2018 Dialog Semiconductor. All rights reserved. RoHS Compliance Dialog Semiconductor’s suppliers certify that its products are in compliance with the requirements of Directive 2011/65/EU of the European Parliament on the restriction of the use of certain hazardous substances in electrical and electronic equipment. RoHS certificates from our suppliers are available on request. Contacting Dialog Semiconductor United Kingdom (Headquarters) Dialog Semiconductor (UK) LTD Phone: +44 1793 757700 North America Dialog Semiconductor Inc. Phone: +1 408 845 8500 Hong Kong Dialog Semiconductor Hong Kong Phone: +852 2607 4271 China (Shenzhen) Dialog Semiconductor China Phone: +86 755 2981 3669 Germany Dialog Semiconductor GmbH Phone: +49 7021 805-0 Japan Dialog Semiconductor K. K. Phone: +81 3 5769 5100 Korea Dialog Semiconductor Korea Phone: +82 2 3469 8200 China (Shanghai) Dialog Semiconductor China Phone: +86 21 5424 9058 The Netherlands Dialog Semiconductor B.V. Phone: +31 73 640 8822 Taiwan Dialog Semiconductor Taiwan Phone: +886 281 786 222 Email [email protected] Web site: www.dialog-semiconductor.com Product Summary www.dialog-semiconductor.com Rev. 1.1 7 of 7 11-Jan-2018 © 2018 Dialog Semiconductor