1 of 7 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 effciency 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 dialogs iw660/2/3 secondary-side controllers for various rapid charge protocols, such as samsung adaptive fast charge (afc) (iw660), qualcomm ? quick charge tm 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 v cc 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. dialogs innovative proprietary technology ensures that power supplies designed with the iw660/2/3 and IW1790 can provide the required output voltage confgurations for afc/qc2.0/qc3.0/fcp and other proprietary protocols, with various user-selected output current limit combinations. qualcomm ? quick charge tm 2.0 and 3.0 are products of qualcomm technologies, inc. 2 features integrated xm-comm technology eliminates secondary-to-primary optocoupler t ransformer communication for all the rapid charge information: output voltage request, output current limit, output voltage undershoot, and over-voltage protection source charging v cc technology eliminates the active start-up (asu) and maintain ultra-low no-load power consumption (<20mw) at 230v ac with typical 5v/2a output setting high v cc pin voltage rating eliminates external v cc ldo tight multi-level constant-voltage and multi-level constant-current regulation with primary-side feedback and control fast dynamic load response (dlr) proprietary optimized load adaptive maximum constant frequency pwm switching with quasi-resonant operation achieves best size, effciency, and common mode noise multi-mode pwm/pfm control improves effciency at various load conditions user-confgurable 4-level cable drop compensation independent of output voltage ez-emi ? design enhances manufacturability 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 supports rapid charge technologies, such as afc, qc 2.0 and 3.0 technologies, fcp, etc. IW1790 highly integrated ac/dc primary-side rapid charge tm pwm controller supporting xm-comm technology rev. 1.1 product summary ? 2018 dialog semiconductor www.dialog-semiconductor.com 11-jan-2018
2 of 7 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.) v out + ntc l n c out u1 IW1790 1 2 3 8 7 6 4 5 v sense gnd cfg sd source i sense gate v cc u1 iw660/2/3 1 2 3 10 9 8 4 7 5 6 d- drain source dis v cc gnd v in sd d+ out + r1 r2 v bus gnd + - d+ d- 3 applications rapid-charging ac/dc adapters for smart phones, tablets and other portable devices (3.6v-12v, 1a-3a). IW1790 highly integrated ac/dc primary-side rapid charge tm pwm controller supporting xm-comm technology rev. 1.1 product summary ? 2018 dialog semiconductor www.dialog-semiconductor.com 11-jan-2018
3 of 7 pin number pin name type pin description 1 gnd ground ground. 2 sd analog input sd function for external shutdown control. can be confgured for external over-temperature protection (otp) by connecting an ntc resistor from this pin to ground. 3 v sense analog input auxiliary voltage sense. used for primary-side regulation and secondary-to-pri - mary communication through main transformer. 4 cfg analog input used for cdc confguration and auxiliary winding open protection. 5 i sense 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 connect - ed to internal mosfet and startup v cc charge circuit. 7 gate output gate drive for external mosfet switch. 8 v cc power input ic power supply. 4 pinout description 10 1 2 8 figure 4.1 : 8-lead soic-8 package IW1790 highly integrated ac/dc primary-side rapid charge tm pwm controller supporting xm-comm technology rev. 1.1 product summary ? 2018 dialog semiconductor www.dialog-semiconductor.com 11-jan-2018
4 of 7 parameter symbol value units dc supply voltage range (pin 1, i cc = 20ma max) v cc -0.3 to 45.0 v continuous dc supply current at v cc pin (v cc = 15v) i cc 20 ma v sense input (pin 3, i v sense -0.7 to 10.0 v cfg (pin 4) -0.7 to 5.0 v sd (pin 2) -0.3 to 5.5 v i sense input (pin 5) -0.7 to 5.0 v source input (pin 6) -0.7 to 25.0 v gate (pin 7) -0.3 to 30 v maximum junction temperature t jmax 150 c operating junction temperature t jopt -40 to 150 c storage temperature t stg -65 to 150 c thermal resistance junction-to-ambient ja 160 c/w esd rating per jedec jesd22-a114 2,000 v latch-up test per jesd78d 100 ma 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 specifcation are not implied. exposure to absolute maximum rating conditions for extended periods may affect device reliability. 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. 5 absolute maximum ratings IW1790 highly integrated ac/dc primary-side rapid charge tm pwm controller supporting xm-comm technology rev. 1.1 product summary ? 2018 dialog semiconductor www.dialog-semiconductor.com 11-jan-2018
5 of 7 6 physical dimensions IW1790 highly integrated ac/dc primary-side rapid charge tm pwm controller supporting xm-comm technology rev. 1.1 product summary ? 2018 dialog semiconductor www.dialog-semiconductor.com 11-jan-2018
6 of 7 7 ordering information part number secondary-side controller options package description protocol supported default k cc at start-up cc shutdown voltage k cc compensation for v bus > 6v IW1790-00 iw660-02 afc 0.5 3.3v for v bus = 5v; 6.5v for v bus = 9 v no soic-8 tape & reel 1 IW1790-07 iw662-01/iw662-02 qc2.0/qc3.0 0.5 2.9v yes soic-8 tape & reel 1 IW1790-08 iw662-00/iw662-05 qc2.0/qc3.0 0.422 6.5v for v bus = 9 v , 66% of v bus for other v bus 2 no soic-8 tape & reel 1 IW1790-09 iw662-01/iw662-02 qc2.0/qc3.0 0.5 2.9v no soic-8 tape & reel 1 IW1790-12 iw663-02 fcp/qc2.0 supports 5.25v/9v v bus 0.422 3.0v for v bus < 9v ; 6.5v for v bus = 9v no soic-8 tape & reel 1 IW1790-18 iw662-18 qc2.0/qc3.0/pe 0.422 3.0v for v bus = 5v ; 6.5v for v bus = 9v no soic-8 tape & reel 1 IW1790-19 iw662-03 qc2.0/qc3.0/pe 0.5 2.9v yes soic-8 tape & reel 1 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 v bus 2.9v. note 3: additional features and options may be available; contact dialog semiconductor. IW1790 highly integrated ac/dc primary-side rapid charge tm pwm controller supporting xm-comm technology rev. 1.1 product summary ? 2018 dialog semiconductor www.dialog-semiconductor.com 11-jan-2018
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 specifcation 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 specifed use without further testing or modifcation. unless otherwise agreed in writing, such testing or modifcation 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 semiconductors 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 semiconductors 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 certifcates from our suppliers are available on request. 7 of 7 contacting dialog semiconductor united kingdom (headquarters) dialog semiconductor (uk) ltd phone: +44 1793 757700 germany dialog semiconductor gmbh phone: +49 7021 805-0 the netherlands dialog semiconductor b.v. phone: +31 73 640 8822 email info_pcbg@diasemi.com north america dialog semiconductor inc. phone: +1 408 845 8500 japan dialog semiconductor k. k. phone: +81 3 5769 5100 taiwan dialog semiconductor taiwan phone: +886 281 786 222 web site: www.dialog-semiconductor.com hong kong dialog semiconductor hong kong phone: +852 2607 4271 korea dialog semiconductor korea phone: +82 2 3469 8200 china (shenzhen) dialog semiconductor china phone: +86 755 2981 3669 china (shanghai) dialog semiconductor china phone: +86 21 5424 9058 IW1790 highly integrated ac/dc primary-side rapid charge tm pwm controller supporting xm-comm technology rev. 1.1 product summary ? 2018 dialog semiconductor www.dialog-semiconductor.com 11-jan-2018
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