EVAL-IBD002-35W

EVAL-IBD002-35W Data brief Inverse Buck 35W with LED current controlled by HVLED002 with Analog/PWM dimming regulation Features • • • • • • • • • • Input voltage: Vin: 48 Vdc-60 Vdc; Vaux:15 Vdc. LED output voltage: 24 Vdc-48 Vdc Maximum LED output current: 700 mA Dimming: between 1%-100% No-load: lower than 50 mW @ 60 Vindc Efficiency: – Full load: >97% – Load over 20% (analog dimming): > 95% Output Ripple Current: No t Mo unte d R34 2k2 LM293S T V+ 8 5 LM293S T V+ U5A PCB=> CB13.PR1 R36 1M 8 R33 100k VREF R28 100k U5B R30 NM 0R0 Q4 R17 120k R57 1K R56 100K R54 3 C9 10uF 35V Vbus R32 10k 100k Ana log Dimming portion NM D7 1N4148WS Vle d compe ns a tion Optiona l R31 220k D9 S ZMM3Z6V2T1G R23 430k Vbus D22 1N4148WS NM Vcc_unre g VREF 12Vcc 1 4 U3 TCLT1007 NM R27 2.2k NM R21 27k 7 8 C8 10uF 35V CS _FLT R20 4.99k C15 47n R8 R9 0R68 0R62 1% 1% R14 442k U2 C11 2.2uF NM D8 1N4148WS 1 D5 S TP S 2H100AF D11 U4 TS 321 - VREF Q6 2N7002 J5 OVP _dis DB4128 - Rev 1 A K + 4 R22 470k VREF J4 5V_Out 1 2 1 2 3 CS _FLT C6 470pF R13 2k7 BZT52C47S NM R19 220k DIM 1N4148WS NM Vcc_unre g VREF Vout=24Vdc-48Vdc S TL4N10F7 NM Q2 2N7002 R18 200k 1 2 S MZJ 3804B-E3/52 CS TP 6 C7 470pF R10 1k 12Vcc NM D10 TP 5 GND 4 RT/CT Q1 GD_B R4 100R 6 5 C5 100nF COMP VCC R3 100k D3 BZX84J -C5V6 D4 1N4148WS NM U1 HVLED002 7 C4 NM Vbus GND Vaux Vcc_unre g D2 560uH ELC12D561E P ha s e VK VIN TP 2 L1 COMP R2 NM C2 4.7uF 100V TP 4 12Vcc OVP 5 6 TP 7 1 R1 0R0 5 NM Vbus 2 TP 1 TP 8 NM C16 1uF P WM Dimming portion page 2/8 EVAL-IBD002-35W Efficiency 2 Efficiency Figure 2. EVAL-IBD002-35W Efficency@60Vindc Figure 3. EVAL-IBD002-35W Efficency@48 and 50Vindc DB4128 - Rev 1 page 3/8 EVAL-IBD002-35W Revision history Table 1. Document revision history DB4128 - Rev 1 Date Version 25-Feb-2020 1 Changes Initial release. page 4/8 EVAL-IBD002-35W Contents Contents 1 Schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 2 Efficiency. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 List of tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 List of figures. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7 DB4128 - Rev 1 page 5/8 EVAL-IBD002-35W List of tables List of tables Table 1. Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 DB4128 - Rev 1 page 6/8 EVAL-IBD002-35W List of figures List of figures Figure 1. Figure 2. Figure 3. DB4128 - Rev 1 EVAL-IBD002-35W schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 EVAL-IBD002-35W Efficency@60Vindc . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 EVAL-IBD002-35W Efficency@48 and 50Vindc . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 page 7/8 EVAL-IBD002-35W IMPORTANT NOTICE – PLEASE READ CAREFULLY STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, enhancements, modifications, and improvements to ST products and/or to this document at any time without notice. Purchasers should obtain the latest relevant information on ST products before placing orders. ST products are sold pursuant to ST’s terms and conditions of sale in place at the time of order acknowledgement. Purchasers are solely responsible for the choice, selection, and use of ST products and ST assumes no liability for application assistance or the design of Purchasers’ products. No license, express or implied, to any intellectual property right is granted by ST herein. Resale of ST products with provisions different from the information set forth herein shall void any warranty granted by ST for such product. ST and the ST logo are trademarks of ST. For additional information about ST trademarks, please refer to www.st.com/trademarks. All other product or service names are the property of their respective owners. Information in this document supersedes and replaces information previously supplied in any prior versions of this document. © 2020 STMicroelectronics – All rights reserved DB4128 - Rev 1 page 8/8