UM10700 - NXP Semiconductors
Contents
1. 0 10 3 10 2 1071 1 10 102 n MHz Fig 10 Conducted emission neutral All information provided in this document is subject to legal disclaimers NXP B V 2013 All rights reserved User manual Rev 1 29 March 2013 13 of 15 NXP Semiconductors UM10700 SSL21083ADB1104 7 W 230 V non dimmable buck GU10 demo board 12 Legal information 12 1 Definitions Draft The document is a draft version only The content is still under internal review and subject to formal approval which may result in modifications or additions NXP Semiconductors does not give any representations or warranties as to the accuracy or completeness of information included herein and shall have no liability for the consequences of use of such information 12 2 Disclaimers Limited warranty and liability Information in this document is believed to be accurate and reliable However NXP Semiconductors does not give any representations or warranties expressed or implied as to the accuracy or completeness of such information and shall have no liability for the consequences of use of such information NXP Semiconductors takes no responsibility for the content in this document if provided by an information source outside of NXP Semiconductors In no event shall NXP Semiconductors be liable for any indirect incidental punitive special or consequential damages including without limitation lost profits lost savings business inte2. Q S Y y S 9 o 8 a oO g Q O I a 8 K I 9 ao 1 x O A O Lu g ra zZ 8 O RJ N A x Ge a K ij Q O tall 4 x a 2 5 PEE zg 9 4 lt Y 3 a z E N N a wn S 1 D N UM10700 All information provided in this document is subject to legal disclaimers NXP B V 2013 All rights reserved User manual Rev 1 29 March 2013 9 of 15 NXP Semiconductors UM10700 SSL21083ADB1104 7 W 230 V non dimmable buck GU10 demo board 8 Bill Of Material BOM Table 2 Bill of material Reference Description and values Part number Manufacturer C3 C4 film capacitor 100 nF 450 V pitch 10 mm axial Fara C5 capacitor 10 uF 50 V X5R 1206 GRM31CR61H106KA12 Murata C6 capacitor 100 nF 50 V X5R 0603 Murata C7 capacitor 1 uF 50 V X5R 0603 Murata C8 capacitor 56 pF 630 V COG 1206 GRM31A5C2J560JW01D Murata c9 electrolytic capacitor 1 uF 400 V 6 3 mm x 11 mm Yonming C10 capacitor 220 pF 630 V COG 1206 GRM31A5C2J221JW01D Murata D2 diode 2 A 600 V SMB ES2J ES2J Taiwan Semiconductor D3 diode 0 5 A 600 V SOD80 GL34J GL34J Diotec D4 diode 400 A 400 V TVS axial P6KE400A Vishay D5 Zener diode BZX384 C30 BZX384 C30 NXP Semiconductors F1 fusible resistor 10 Q 250 V AC Xiang Zeng L2 inductor 2 0 mH axial 0608 Chuang Xin L3 inductor axial SO8 4 4 pins Kang Ci R2 resistor 510 Q
3. liability of NXP Semiconductors its affiliates and their suppliers and customer s exclusive remedy for all of the foregoing shall be limited to actual damages incurred by customer based on reasonable reliance up to the greater of the amount actually paid by customer for the product or five dollars US 5 00 The foregoing limitations exclusions and disclaimers shall apply to the maximum extent permitted by applicable law even if any remedy fails of its essential purpose Safety of high voltage evaluation products The non insulated high voltages that are present when operating this product constitute a risk of electric shock personal injury death and or ignition of fire This product is intended for evaluation purposes only It shall be operated in a designated test area by personnel that is qualified according to local requirements and labor laws to work with non insulated mains voltages and high voltage circuits The product does not comply with IEC 60950 based national or regional safety standards NXP Semiconductors does not accept any liability for damages incurred due to inappropriate use of this product or related to non insulated high voltages Any use of this product is at customer s own risk and liability The customer shall fully indemnify and hold harmless NXP Semiconductors from any liability damages and claims resulting from the use of the product Translations A non English translated version of a document is for
4. reference only The English version shall prevail in case of any discrepancy between the translated and English versions 12 3 Trademarks Notice All referenced brands product names service names and trademarks are the property of their respective owners NXP B V 2013 All rights reserved User manual Rev 1 29 March 2013 14 of 15 NXP Semiconductors U M1 0700 SSL21083ADB1104 7 W 230 V non dimmable buck GU10 demo board 13 Contents 1 Introduction 200 0c e eee eee eee 3 2 Safety warningS 00eee cece eens 3 3 Specification 00 cece 3 4 Board photographs 220 20005 5 5 Connecting the board 0 055 6 6 System optimization 00eeeeee 6 6 1 Changing the output current 6 6 2 External OverTemperature Protection OTP 7 6 3 Adapting the circuit to Pin lt 5 W PF lt 0 7 8 6 4 Improving the driver efficiency 8 7 Schematic 2 icc cece eecs sinia een eines 9 8 Bill Of Material BOM 10 9 Transformer specification 11 9 1 Winding specification 11 9 2 Electric characteristics 11 9 3 Core and bobbin 004 11 10 Performance test resultS 00005 12 11 EMC test resultS 0 200e eee eeeee 13 12 Legal information 00 0eseenee 14 12 1 DefinitiONS 224042 0e0k eee thee Fe ces 14 12 2 Disclaimers 0
5. 00200 cee eee eee 14 12 3 Trademarks 0000200 0c eee eee 14 13 Contents i iccc cic ieie cece east eee cee 15 Please be aware that important notices concerning this document and the product s described herein have been included in section Legal information NXP B V 2013 All rights reserved For more information please visit http www nxp com For sales office addresses please send an email to salesaddresses nxp com Date of release 29 March 2013 Document identifier UM10700
6. 5 1 W Yageo R3 resistor 10 kQ 5 0603 Yageo R4 resistor 1 6 Q 1 0805 Yageo R5 resistor 1 8 Q 1 0805 Yageo RT1 NTC 100 kQ 0603 Thinking U1 controller IC SO8 SSL21083A SSL21083A NXP Semiconductors U2 rectifier bridge 0 5 A 600 V MBS MB6S MB6S Vishay UM10700 All information provided in this document is subject to legal disclaimers NXP B V 2013 All rights reserved User manual Rev 1 29 March 2013 10 of 15 NXP Semiconductors U M1 0700 SSL21083ADB1104 7 W 230 V non dimmable buck GU10 demo board 9 Transformer specification Figure 6 shows the transformer schematic pin 8 pin 1 80 1 Gi 70 o2 N1 60 o3 5 o4 lt 10 25 N aaa 006951 Fig 6 Transformer schematic 9 1 Winding specification Table 3 Winding specification Number Section Wire Layers Turns Begin pin End pin 1 N1 0 28 mm 5 78 1 5 9 2 Electric characteristics Table 4 Electric characteristics Section Inductance N1 0 4 mH 10 at 50 kHz at 1 V 9 3 Core and bobbin e Core FEE 10 NC 2H Nicera or equivalent material e Bobbin EE10 TF 10 Taiwan Shulin UM10700 All information provided in this document is subject to legal disclaimers Rev 1 29 March 2013 NXP B V 2013 All rights reserved 11 of 15 User manual NXP Semiconductors U M1 0700 SSL21083ADB1104 7 W 230 V non dimmable buck GU10 demo board 10 Performance test results UM10700 350 aaa 00
7. 6952 ILED mA 310 270 230 190 150 200 220 240 260 280 Vmains V AC Output voltage 20 V DC Fig 7 Line regulation 350 aaa 006953 ILED mA 310 270 230 190 150 10 15 20 25 30 Viep V DC Input voltage 230 V AC Fig 8 Load regulation All information provided in this document is subject to legal disclaimers NXP B V 2013 All rights reserved User manual Rev 1 29 March 2013 12 of 15 NXP Semiconductors U M1 0700 SSL21083ADB1104 7 W 230 V non dimmable buck GU10 demo board 11 EMC test results UM10700 aaa 006954 120 Noise Level dBuV m 80 1 2 40 3 4 0 10 3 10 2 10 1 1 10 102 n MHz Fig 9 Conducted emission line aaa 006955 120 Noise Level dBuV m 80 1 2 40 3 4
8. UM10700 SSL21083ADB1104 7 W 230 V non dimmable buck GU10 demo board Rev 1 29 March 2013 User manual Document information Info Content Keywords SSL21083ADB1104 reference board SSL21083A buck converter LED driver LED retrofit lamp low power Abstract This document describes the performance technical data and the connection of the SSL21083A demo board The SSL2108 series is an NXP Semiconductors driver IC providing a low cost small form factor LED driver This board operates at 230 V AC using an output voltage lt 25 V NXP Semiconductors U M1 0700 SSL21083ADB1104 7 W 230 V non dimmable buck GU10 demo board Revision history Rev Date Description v 1 20130329 first issue Contact information For more information please visit http www nxp com For sales office addresses please send an email to salesaddresses nxp com UM10700 All information provided in this document is subject to legal disclaimers NXP B V 2013 All rights reserved User manual Rev 1 29 March 2013 2 of 15 NXP Semiconductors U M1 0700 SSL21083ADB1104 7 W 230 V non dimmable buck GU10 demo board 1 Introduction WARNING Lethal voltage and fire ignition hazard The non insulated high voltages that are present when operating this product constitute a risk of electric shock personal injury death and or ignition of fire This product is intended for evaluation purposes only It shall be o
9. XP does not accept any liability in this respect Export control This document as well as the item s described herein may be subject to export control regulations Export might require a prior authorization from competent authorities Evaluation products This product is provided on an as is and with all faults basis for evaluation purposes only NXP Semiconductors its affiliates and their suppliers expressly disclaim all warranties whether express implied or statutory including but not limited to the implied warranties of non infringement merchantability and fitness for a particular purpose The entire risk as to the quality or arising out of the use or performance of this product remains with customer In no event shall NXP Semiconductors its affiliates or their suppliers be liable to customer for any special indirect consequential punitive or incidental damages including without limitation damages for loss of business business interruption loss of use loss of data or information and the like arising out the use of or inability to use the product whether or not based on tort including negligence strict liability breach of contract breach of warranty or any other theory even if advised of the possibility of such damages Notwithstanding any damages that customer might incur for any reason whatsoever including without limitation all damages referenced above and all direct or general damages the entire
10. directly to the NTC pin It is also possible to tune the protection temperature by adding a resistor in parallel or in series with the NTC One NTC is installed on the reference board The values of these components can be changed depending on protection temperature requirements and component availability Adapting the circuit to Pi lt 5 W PF lt 0 7 Design example The driver specification is 5 LEDs of 0 28 A at 230 V AC Solution Remove capacitor C3 and diode D3 short circuit resistor R2 Keep capacitor C9 1 uF e cap The board test data at a 230 V AC input voltage are e PF 0 64 e Ph 5W e Va 14 6V e l 0 281A n 0 82 6 4 Improving the driver efficiency e Select a slightly lower PF by decreasing the value of resistor R2 The power consumption of the resistor decreases as well causing the driver efficiency to increase e Use a larger inductor type L3 or a larger wire diameter of the inductor e Choose a lower operating frequency e Reduce the value of the DV dt capacitor making sure that Voc gt Vccistop 9 V typical All information provided in this document is subject to legal disclaimers NXP B V 2013 All rights reserved User manual Rev 1 29 March 2013 8 of 15 NXP Semiconductors U M1 0700 SSL21083ADB1104 7 W 230 V non dimmable buck GU10 demo board 1 a a W W A A
11. e of resistor R4 in parallel with resistor R5 is 0 847 Q the peak current is limited to 590 mA see Equation 1 _ 0 5 x R4 R5 Ipeak R4 x RS 1 UM10700 All information provided in this document is subject to legal disclaimers NXP B V 2013 All rights reserved User manual Rev 1 29 March 2013 6 of 15 NXP Semiconductors U M1 0700 UM10700 6 2 SSL21083ADB1104 7 W 230 V non dimmable buck GU10 demo board When the MOSFET is turned off inductor L3 is discharged and the current flowing through the inductor decreases When the current in the inductor reaches 0 mA the voltage on the DRAIN pin starts to oscillate because of the stray capacitance ringing The SSL21083A waits for a valley of this oscillation The charge time of the inductor is calculated using Equation 2 2xI ten L3x Vi VED The discharge time of the inductor is calculated using Equation 3 2xligp tach L3 x 3 ViED A current flow through the inductor when it is charging discharging However there is also an effective current when ringing Consider the oscillation frequency when adjusting the output current It is calculated using Equation 4 ie 4 1 2x mx JL3 x CrprtC8 The time from the start of oscillation to the first valley is calculated with Equation 5 1 fa ring 2 xTring The output current is calculated using Equation 6 teh t tg h Lay et on an 6 2 peak yt t ch dc
12. h ring Conclusion By changing Ipeak ILep can be changed External OverTemperature Protection OTP The SSL21083A supports external OTP by adding an external Negative Temperature Coefficient NTC resistor This feature is delivered by detecting a voltage on pin NTC Pin NTC has an integrated current source The resistance of the NTC resistor decreases as the temperature rises When the NTC temperature rises and the voltage on pin NTC falls below 0 5 V the SSL21083A lowers the threshold level for detecting peak current in the inductor Decreasing the peak current in the inductor causes the power current to decrease The output current is regulated so a balance between temperature and output current can be retained the so called thermal management If the temperature on NTC increases continuously and the voltage on the pin drops below 0 3 V the SSL21083A starts the NTC time out timer If the voltage on pin NTC pin does not drop below 0 2 V within the time out the SSL21083A detects an abnormal condition and stops switching If the voltage reaches 0 2 V within the time out period a Pulse Width Modulaton PWM signal is assumed All information provided in this document is subject to legal disclaimers NXP B V 2013 All rights reserved User manual Rev 1 29 March 2013 7 of 15 NXP Semiconductors U M1 0700 UM10700 6 3 SSL21083ADB1104 7 W 230 V non dimmable buck GU10 demo board An NTC resistor can be connected
13. ibed herein for any of these products are for illustrative purposes only NXP Semiconductors makes no representation or warranty that such applications will be suitable for the specified use without further testing or modification Customers are responsible for the design and operation of their applications and products using NXP Semiconductors products and NXP Semiconductors accepts no liability for any assistance with applications or customer product design It is customer s sole responsibility to determine whether the NXP Semiconductors product is suitable and fit for the customer s applications and products planned as well as for the planned application and use of customer s third party customer s Customers should provide appropriate design and operating safeguards to minimize the risks associated with their applications and products UM10700 All information provided in this document is subject to legal disclaimers NXP Semiconductors does not accept any liability related to any default damage costs or problem which is based on any weakness or default in the customer s applications or products or the application or use by customer s third party customer s Customer is responsible for doing all necessary testing for the customer s applications and products using NXP Semiconductors products in order to avoid a default of the applications and the products or of the application or use by customer s third party customer s N
14. ormation provided in this document is subject to legal disclaimers NXP B V 2013 All rights reserved User manual Rev 1 29 March 2013 5 of 15 NXP Semiconductors U M1 0700 SSL21083ADB1104 7 W 230 V non dimmable buck GU10 demo board 5 Connecting the board The board is optimized for a 175 V to 265 V AC at 50 Hz mains source It has been designed to work with multiple high power LEDs with a total working voltage between 15 V and 25 V The output current is set to 290 mA The output voltage is limited to 30 V aaa 006946 Fig 4 Board connection front For demonstration purposes it is recommended to mount the board in a shielded or isolated box If a galvanic isolated transformer is used placed it between the AC source and the evaluation board Board output Connect a string of LED lamps 5 to 8 6 System optimization The following modifications can be made to meet customer application specifications 6 1 Changing the output current The SSL21083A monitors the charging current in the inductor using sense resistors R4 and R5 The device controls a MOSFET to retain a constant peak current In addition the IC supports valley switching These features enable a driver to operate in Boundary Conduction Mode BCM with valley switching where the average current in the inductor is the output current The SSL21083A turns off the MOSFET when the voltage on the SOURCE pin reaches 500 mV If the valu
15. perated in a designated test area by personnel qualified according to local requirements and labor laws to work with non insulated mains voltages and high voltage circuits This product shall never be operated unattended The SSL21083A is a highly integrated switch mode LED driver enabling constant current driving from the mains input It is a solution for small LED retrofit lamp application The SSL21083A is a buck converter controller suitable for non isolated non dimmable LED retrofit lamps 2 Safety warnings The board has to be connected to the mains voltage Touching the board during operation must be avoided at all times An isolated housing is obligatory when used in uncontrolled non laboratory environments Even though the secondary circuit with LED connection has galvanic isolation this isolation is not according to any norm Thus a galvanic isolation of the mains phase using a variable transformer is always recommended The symbols shown in Figure 1 indicate these devices QQ 019aab173 019aab174 a Isolated b Not isolated Fig1 Variable transformer Variac isolation symbols 3 Specification UM10700 Table 1 Specifications Parameter Value s Commeni s AC line input voltage 175 V to 265 V AC at 50 Hz and 60 Hz output voltage LED voltage 15 V to 25 V DC output voltage protection 30 V DC output current LED current 290 mA typical input voltage load current 1 at an input
16. rruption costs related to the removal or replacement of any products or rework charges whether or not such damages are based on tort including negligence warranty breach of contract or any other legal theory Notwithstanding any damages that customer might incur for any reason whatsoever NXP Semiconductors aggregate and cumulative liability towards customer for the products described herein shall be limited in accordance with the Terms and conditions of commercial sale of NXP Semiconductors Right to make changes NXP Semiconductors reserves the right to make changes to information published in this document including without limitation specifications and product descriptions at any time and without notice This document supersedes and replaces all information supplied prior to the publication hereof Suitability for use NXP Semiconductors products are not designed authorized or warranted to be suitable for use in life support life critical or safety critical systems or equipment nor in applications where failure or malfunction of an NXP Semiconductors product can reasonably be expected to result in personal injury death or severe property or environmental damage NXP Semiconductors and its suppliers accept no liability for inclusion and or use of NXP Semiconductors products in such equipment or applications and therefore such inclusion and or use is at the customer s own risk Applications Applications that are descr
17. voltage range see Figure 7 dependency of 175 V AC to 265 V AC All information provided in this document is subject to legal disclaimers NXP B V 2013 All rights reserved User manual Rev 1 29 March 2013 3 of 15 NXP Semiconductors UM10700 UM10700 SSL21083ADB1104 7 W 230 V non dimmable buck GU10 demo board Table 1 Specifications continued Parameter Value s Commeni s output voltage load current 2 at an output voltage see Figure 8 dependency range of 15 V to 25 V DC current ripple 20 maximum output power 7W LED power Efficiency 83 at a 230 V AC input Tamb 30 C power factor switching frequency board dimensions operating temperature EMC compliance voltage and a 21 V DC output voltage gt 0 7 at an input voltage range of 175 V to 265 V AC 55 kHz to 88 kHz at an output voltage range of 15 V to 25 V DC 28 mm x 15mm x 15mm 20 C to 85 C EN55015 CE input voltage 230 V AC ambient temperature see Figure 9 and Figure 10 All information provided in this document is subject to legal disclaimers NXP B V 2013 All rights reserved User manual Rev 1 29 March 2013 4 of 15 NXP Semiconductors U M1 0700 SSL21083ADB1104 7 W 230 V non dimmable buck GU10 demo board 4 Board photographs aaa 006946 Fig 2 Demo board top aaa 006947 Fig 3 Demo board bottom UM10700 All inf
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