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UM10501
SSL21083 reference board user manual
Rev. 2 — 16 November 2011
Document information
Info
Content
Keywords
SSL21083, buck converter, reference board, LED driver, LED retrofit
lamp, low power
Abstract
This document describes the performance, technical data and the
connection of the SSL21083 reference board. The SSL2108 series is an
NXP Semiconductors driver IC intended to provide a low cost, small form
factor LED driver. This board is intended to operate at 230 V (AC), using
an output voltage of 30 V or more.
User manual
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Summary of Contents for NXP Semiconductors SSL21083
- Page 1 Abstract This document describes the performance, technical data and the connection of the SSL21083 reference board. The SSL2108 series is an NXP Semiconductors driver IC intended to provide a low cost, small form factor LED driver. This board is intended to operate at 230 V (AC), using...
- Page 2 UM10501 NXP Semiconductors SSL21083 reference board user manual Revision history Date Description 20111116 second issue • Modifications: Section 9 “Active bypass” on page 11: minor text changes • Section 10 “Known issues” on page 12: section added. 20110908 first issue...
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Page 3: Introduction
This product shall never be operated unattended. The SSL21083 is a highly integrated switching mode LED driver which enables constant current driving from the mains input. It is a solution for small LED retrofit lamp application, especially for low-power factor design. -
Page 4: Connecting To The Board
UM10501 NXP Semiconductors SSL21083 reference board user manual 3. Connecting to the board The board is optimized for a 230 V (AC, 50 Hz) mains supply. In addition to the mains voltage optimization, the board is designed to work with multiple LEDs or an LED module with a high forward voltage. -
Page 5: Specification
UM10501 NXP Semiconductors SSL21083 reference board user manual 4. Specification Table 1. Specifications for the reference board Parameter Value Comment AC line input voltage 170 V (AC) to 260 V (AC) the board is optimized for 230 V (AC), 50 Hz... - Page 6 UM10501 NXP Semiconductors SSL21083 reference board user manual aaa-000497 (mA) Fig 4. Line regulation: output current as a function of input voltage aaa-000498 η Fig 5. Line regulation: efficiency as a function of input voltage aaa-000499 η (V (DC)) (1) Efficiency (2) Power factor Fig 6.
- Page 7 MAXH 2 AV CLRWR EN55015A 9 kHz 30 MHz aaa-000500 Fig 7. SSL21083 EMC measurement L-phase according to EN55015 norm NXP Semiconductors 9 kHz Marker 1 [T2 ] 15.Jun 11 15:34 15 ms 49.86 dBµV Att 10 dB PREAMP OFF 9.000000000 kHz...
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Page 8: Changing The Output Current
The SSL21083 turns off the MOSFET when the voltage on pin SOURCE reaches 500 mV. If the value of R5 in parallel with R6 is 2 , the peak current is limited to 250 mA. -
Page 9: External Overtemperature Protection (Otp)
If the temperature on NTC increases continuously and the voltage on the pin drops below 0.3 V, the SSL21083 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 SSL21083 detects an abnormal condition and stops switching. -
Page 10: Power Factor Adjustment
SSL21083 reference board user manual 8. Power factor adjustment The SSL21083 IC and SSL21083 reference designs are designed for standard operation with a power factor of 0.6 at 230 V (AC). This choice offers highest efficiency. It is possible to tune the power factor to higher values using two methods. -
Page 11: Active Bypass
UM10501 NXP Semiconductors SSL21083 reference board user manual 9. Active bypass An increased value for the inrush current resistor protects the board from damage with phase-cut dimmers, but lowers the efficiency. If a higher power factor is not required, but leading-edge dimmer resistance and high efficiency are important, the active bypass option is available. -
Page 12: Known Issues
UM10501 NXP Semiconductors SSL21083 reference board user manual 10. Known issues 10.1 Latch up on fast mains toggle It can be observed that the board latches up when the mains voltage is switched on, off, and then on again within a 1.6 s time period. -
Page 13: Schematic
UM10501 NXP Semiconductors SSL21083 reference board user manual 11. Schematic J5 (1 to 3) 1.5 mH LED+ 0.47 μF 250 V 2.2 μF 100 nF J5 (4 to 6) DRAIN 400 V 400 V 3.3 mH LED- SOURCE J6-1 SSL21083 22 Ω... -
Page 14: Inductor Appearance And Dimensions
UM10501 NXP Semiconductors SSL21083 reference board user manual 13. Inductor appearance and dimensions part must insert fully to surface A in recommended 2.54, 3.30 grid 0.53 sq 12.70 max 13.97 max 13.97 max dot locates term. #1 lot code and... -
Page 15: Board Layout
UM10501 NXP Semiconductors SSL21083 reference board user manual 14. Board layout aaa-000507 aaa-000508 a. Bottom layer b. Top silk aaa-000509 aaa-000510 c. Bottom silk d. Drill mask Fig 14. Board layout UM10501 All information provided in this document is subject to legal disclaimers. -
Page 16: Board Photographs
UM10501 NXP Semiconductors SSL21083 reference board user manual 15. Board photographs aaa-000511 a. Front view aaa-000512 b. Back view Fig 15. Photographs of the board UM10501 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2011. All rights reserved. -
Page 17: Legal Information
In no event shall NXP Semiconductors be liable for any indirect, incidental, punitive, special or consequential damages (including - without limitation - lost In no event shall NXP Semiconductors, its affiliates or their suppliers be liable profits, lost savings, business interruption, costs related to the removal or... -
Page 18: Table Of Contents
UM10501 NXP Semiconductors SSL21083 reference board user manual 17. Contents Introduction ......3 Safety warning .
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