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NXP Semiconductors UM10468 User Manual

NXP Semiconductors UM10468 User Manual

Ssl2108x buck evaluation board
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UM10468
SSL2108X buck evaluation board
Rev. 1 — 30 August 2011
Document information
Info
Keywords
Abstract
Content
SSL2108X, Buck, down converter, AC/DC converter, retrofit SSL, LED
driver, LED retrofit lamp, non-dimmable
The SSL2108X is a range of high-voltage Integrated Circuits (ICs),
intended to drive non-dimmable retrofit LED lamps in general lighting
applications. This document describes the evaluation board for mains
operated non-dimmable LED drivers using the SSL21081, SSL21082,
SSL21083 and SSL21084 controller ICs.
Refer to the SSL2108X data sheet for details on the SSL2108X device
and application note AN11041 for general application information.
User manual

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  • Page 1 UM10468 SSL2108X buck evaluation board Rev. 1 — 30 August 2011 User manual Document information Info Content Keywords SSL2108X, Buck, down converter, AC/DC converter, retrofit SSL, LED driver, LED retrofit lamp, non-dimmable Abstract The SSL2108X is a range of high-voltage Integrated Circuits (ICs), intended to drive non-dimmable retrofit LED lamps in general lighting applications.

  • Page 2: Contact Information

    UM10468 NXP Semiconductors SSL2108X buck evaluation board Revision history Date Description 20110830 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 UM10468 All information provided in this document is subject to legal disclaimers.

  • Page 3: Introduction

    UM10468 NXP Semiconductors SSL2108X buck evaluation 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.

  • Page 4: Safety Warning

    UM10468 NXP Semiconductors SSL2108X buck evaluation board 2. Safety warning This reference board is connected to a high AC voltage (up to 250 V). Avoid touching the demo board during operation. An isolated housing is obligatory when used in uncontrolled, non-laboratory environments. Galvanic isolation of the mains phase using a fixed or variable transformer (Variac) is always recommended.

  • Page 5: Performance Data

    UM10468 NXP Semiconductors SSL2108X buck evaluation board 4. Performance data 4.1 Output load 019aac361 (mA) Fig 2. SSL21081 load curve: I as a function of V 4.2 Efficiency Curve 019aac362 η Fig 3. SSL21081: Efficiency () as a function of output power (P UM10468 All information provided in this document is subject to legal disclaimers.

  • Page 6: Input Voltage Dependency

    UM10468 NXP Semiconductors SSL2108X buck evaluation board 4.3 Input voltage dependency 019aac363 (mA) mains Fig 4. SSL21081 input voltage dependency: I as a function of V mains 4.4 ElectroMagnetic Compatibility data 019aac364 (1) Peak values. (2) Average values. Fig 5.
  • Page 7 UM10468 NXP Semiconductors SSL2108X buck evaluation board 019aac365 (1) Peak values. (2) Average values. Fig 6. SSL21081 EMC measurement N-phase according to FCC15 norm (1) Peak values. (2) Average values. Fig 7. SSL21083 EMC measurement L-phase according to EN55015 norm UM10468 All information provided in this document is subject to legal disclaimers.
  • Page 8 UM10468 NXP Semiconductors SSL2108X buck evaluation board (1) Peak values. (2) Average values. Fig 8. SSL21083 EMC measurement N-phase according to EN55015 norm UM10468 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2011. All rights reserved.

  • Page 9: Ssl21081 Mains Harmonics

    UM10468 NXP Semiconductors SSL2108X buck evaluation board 4.5 SSL21081 mains harmonics Table 3. SSL21081 mains conducted harmonics Line Percent (%) Class-C Except Line Percent (%) Class-C Except undefined undefined undefined 84.7 undefined undefined undefined 59.8 undefined undefined undefined 34.1 undefined...
  • Page 10 UM10468 NXP Semiconductors SSL2108X buck evaluation board 019aac367 (1) Drain voltage V DRAIN (2) Source voltage V SOURCE Fig 10. V and V typical waveforms DRAIN SOURCE UM10468 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2011. All rights reserved.

  • Page 11: Connection Data

    UM10468 NXP Semiconductors SSL2108X buck evaluation board 5. Connection data The evaluation board operates from either: • SSL21081 and SSL21082: 100 V (AC) to 120 V (AC) mains supply voltage • SSL21083 and SSL21084: 230 V (AC) mains supply voltage The evaluation board is designed to work with an LED module with an operating voltage •...

  • Page 12: Functional Description

    UM10468 NXP Semiconductors SSL2108X buck evaluation board LED + LED load external NTC/ NTC - LED - PWM input NTC + LED + LED load LED - FUSE 1 mains input 019aac358 Fig 11. Board connection diagram 6. Functional description The SSL2108X IC (Ref.

  • Page 13: Board Optimization

    UM10468 NXP Semiconductors SSL2108X buck evaluation board Jumper J10A is connected in series with the brownout capacitor C8. Removing this jumper sets the brownout protection trigger values to be reset to default value. Remark: Brownout protection is only available in the SSL21082 and SSL21084.

  • Page 14: Active Bypass

    UM10468 NXP Semiconductors SSL2108X buck evaluation board 7.1 Active bypass An increased value for the inrush current resistor causes the board to operate with the most phase cut dimmers, but also lowers the efficiency. If a higher power factor is not required, but leading-edge dimmer compatibility and high efficiency are important, the active bypass option is available.

  • Page 15: Negative Temperature Coefficient (Ntc) Function

    UM10468 NXP Semiconductors SSL2108X buck evaluation board 8. Negative Temperature Coefficient (NTC) function The NTC pin can act as a control for thermal protection, an input for disabling/enabling the light output using PWM dimming and a soft-start function. When using the NTC pin as a control for thermal protection, the pre-soldered NTC RT1 can be used.

  • Page 16: Schematic

    UM10468 NXP Semiconductors SSL2108X buck evaluation board 9. Schematic LED+ LED- FUS 1 LED+ earth to mains RGND test point LED- to LED’s test point DRAIN test point n.c. n.c. (SOURCE) (GND) (VCC) (NTC) (DVDT) SSL21081/ DVDT SSL21083 test point...

  • Page 17: Bill Of Materials (Bom)

    UM10468 NXP Semiconductors SSL2108X buck evaluation board 10. Bill of materials (BOM) 10.1 BOM for SSL21081 evaluation board Table 5. SSL21081 Bill of materials Ref. Description and value Manufacturer and part no. Remark SSL21081 controller IC NXP Semiconductors IC socket Wells-cti;...

  • Page 18: Bom For Ssl21082 Evaluation Board

    SSL21082 Bill of materials Ref. Description and value Manufacturer and part no. Remark SSL21082 Controller IC NXP Semiconductors; SSL21082T IC Socket; n.m. Wells-cti; 652B0142211-002 not mounted filter capacitor; 10 F; 200 V Nichicon; UVZ2D100MPD1TD filter capacitor; 10 F; 200 V Nichicon;...

  • Page 19: Bom For Ssl21083 Evaluation Board

    SSL21083 Bill of materials Ref. Description and value Manufacturer and part no. Remark SSL21083 Controller IC NXP Semiconductors; SSL21083 IC Socket; n.m. Wells-cti; 652B0142211-002 not mounted filter capacitor; 4.7 F; 400 V Panasonic; ECA2GHG4R7 filter capacitor; 4.7 F; 400 V Panasonic;...
  • Page 20 UM10468 NXP Semiconductors SSL2108X buck evaluation board Table 7. SSL21083 Bill of materials …continued Ref. Description and value Manufacturer and part no. Remark jumper; n.m. Lumberg; 2,54MKB not mounted jumper Lumberg; 2,54MKB jumper Lumberg; 2,54MKB jumper; n.m. Lumberg; 2,54MKB not mounted jumper;...

  • Page 21: Bom For Ssl21084 Evaluation Board

    UM10468 NXP Semiconductors SSL2108X buck evaluation board 10.4 BOM for SSL21084 evaluation board Table 8. SSL21084 Bill of materials Ref. Description and value Manufacturer and part no. Remark NXP Semiconductors;  SSL21084 Controller IC SSL21084T IC Socket; n.m. Wells-cti; 652B0142211-002 not mounted filter capacitor;...
  • Page 22 UM10468 NXP Semiconductors SSL2108X buck evaluation board Table 8. SSL21084 Bill of materials …continued Ref. Description and value Manufacturer and part no. Remark inrush resistor; 0  Multicomp; MC 0.1W 0805 0R resistor; 0  Multicomp; MC 0.1W 0805 0R NTC;...

  • Page 23: Printed-Circuit Board (Pcb) Data

    UM10468 NXP Semiconductors SSL2108X buck evaluation board 11. Printed-Circuit Board (PCB) data 11.1 Evaluation board photographs Remark: The configuration of the SSL21083 is similar to the SSL21081 although BOM is different. The same is true of the SSL21084 when compared to the SSL21082.
  • Page 24 UM10468 NXP Semiconductors SSL2108X buck evaluation board 019aac357 a. Top view: SSL21081 (SO8) reference board. 019aac356 b. Top view: SSL21082 (SO12) reference board. Fig 16. SSL21081 and SSL21082 reference board photographs UM10468 All information provided in this document is subject to legal disclaimers.

  • Page 25: Abbreviations

    UM10468 NXP Semiconductors SSL2108X buck evaluation board 12. Abbreviations Table 9. Abbreviations Acronym Description Boundary Conduction Mode Continuous Conduction Mode Discontinuous Conduction Mode ElectroMagnetic Compatibility ElectroMagnetic Interference Light Emitting Diode MOSFET Metal-Oxide Semiconductor Field-Effect Transistor OverCurrent Protection Output Short Protection...

  • Page 26: Legal Information

    Notwithstanding any damages that customer might incur for any reason whatsoever, NXP Semiconductors’ aggregate and cumulative liability towards In no event shall NXP Semiconductors, its affiliates or their suppliers be liable customer for the products described herein shall be limited in accordance to customer for any special, indirect, consequential, punitive or incidental with the Terms and conditions of commercial sale of NXP Semiconductors.

  • Page 27: Table Of Contents

    ‘Legal information’. © NXP B.V. 2011. 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: 30 August 2011 Document identifier: UM10468...

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