For more information, please visit the product page. date 11/01/2012 page 1 of 6 SERIES: VLD25-SMT │ DESCRIPTION: LED DRIVER FEATURES • • • • • • • • power LED driver wide input and output voltage range SMT package constant current output PWM dimming and analogue dimming short circuit protection analog dimming high efficiency up to 96% RoHS input voltage output voltage output current ripple and noise range (Vdc) range (Vdc) range (mA) max (mVp-p) VLD25-300-SMT 5.5 ~ 48 3.3 ~ 36 0 ~ 300 120 PWM+analog 96 VLD25-350-SMT 5.5 ~ 48 3.3 ~ 36 0 ~ 350 120 PWM+analog 96 VLD25-500-SMT 5.5 ~ 48 3.3 ~ 36 0 ~ 500 120 PWM+analog 96 VLD25-600-SMT 5.5 ~ 48 3.3 ~ 36 0 ~ 600 120 PWM+analog 96 VLD25-700-SMT 5.5 ~ 48 3.3 ~ 36 0 ~ 700 120 PWM+analog 96 MODEL dimming control typ (%) PART NUMBER KEY VLD25 - XXX -SMT - X Base Number Output Voltage Packaging Style cui.com efficiency Package Options "blank" = standard TR = Tape & Reel For more information, please visit the product page. CUI Inc │ SERIES: VLD25-SMT │ DESCRIPTION: LED DRIVER date 11/01/2012 │ page 2 of 6 INPUT parameter conditions/description min operating input voltage absolute max before device failure operating input range 5 5.5 quiescent input current in off mode Vin = 24 V, Vr < 0.6 V filter capacitor remote on/off dc-dc ON (Vr on pin 7) dc-dc OFF remote pin current Vr = 5V typ max units 24 55 48 Vdc Vdc 400 μA 1 μF open or 2.8 V < Vr < 6V Vr < 0.6 V PWM frequency input voltage - analog dimming Vin = 5.5 ~ 4.8 V control voltage analog dimming full on full off driving current analog dimming Vr = 5 V 0 0.15 4.3 0.20 4.5 1 mA 0.2 kHz 15 V 0.25 4.7 V V 0.6 A max units 36 Vdc OUTPUT parameter conditions/description min voltage range Vin = 48 V , Vo = 3.3 V ~ 36 V 3.3 voltage drop Vin = 5.5 ~ 48 V, 1 ~ 10 LED 2 current accuracy output current range analog dimming typ ±2 Vin = 5.5 ~ 48 V, 1 ~ 10 LED current stability Vin = 48 V, Vo = 3.3 V ~ 36 V temperature coefficient -40 ~ 71°C ambient 0 4 Vdc ±3 % 100 % ±1 % ±0.015 %/°C 1,000 μF typ max units typ max units 85 71 °C °C capacitive load PROTECTIONS parameter conditions/description short circuit protection continuous automatic recovery min SAFETY AND COMPLIANCE parameter conditions/description EMI/EMC EN 55015 power port, EN 55015, IEC/EN 61000-4-(2, 3, 4, 5, 6) RoHS compliant yes ENVIRONMENTAL parameter conditions/description min operating temperature 300/350 mA 500/600/700 mA -40 -40 storage temperature -55 maximum case temperature 125 °C 100 °C max units MECHANICAL parameter conditions/description dimensions 0.94 x 0.71 x 0.31 inch (23.86 x 18.1 x 8.0 mm) min case material epoxy resin (UL94-V0) weight typ 6 cui.com g For more information, please visit the product page. CUI Inc │ SERIES: VLD25-SMT │ DESCRIPTION: LED DRIVER date 11/01/2012 │ page 3 of 6 MECHANICAL DRAWING unit: mm(inch) Pin tolerances: ±0.10mm(±0.039inch) General tolerances: ±0.25mm(±0.010inch) 15.24 0.600 0.50 0.020 (6 PLCS) 1.02 0.040 (6 PLCS) 16 10 9 18.10 0.713 1 7 3.04 0.120 8 2.54 0.100 1.40 0.055 0.20 13.70 0.539 23.86 0.939 0.25 0.010 5° max 7.50 0.295 8.00 0.315 A RECOMMENDED FOOTPRINT (TOP VIEW) PIN CONNECTIONS Function 1 GND 7 ON/OFF/PWM 8 -Vout 9 +Vout 10 analog dimming 16 Vin 17.20 [0.677] Pin DETAIL A SCALE 8 : 1 16 1 10 9 7 8 1.00 [0.039] 2.54 [0.100] grid: 2.54 x 2.54 mm cui.com 2.10 [0.100] For more information, please visit the product page. CUI Inc │ SERIES: VLD25-SMT │ DESCRIPTION: LED DRIVER date 11/01/2012 │ page 4 of 6 APPLICATION NOTES 1. Digital Dimming Control 50% Duty Cycle 20% Duty Cycle 80% Duty Cycle Output current(LED appears dimmer) Output current(LED appears brighter) Output current For the rated frequency PWM dimming, the output current of driver matters to the pulse width of the PWM signal, and the numerate please refer to the following formula: Io,set refers to the expected output current value. (DT-0.6) Io,norm refers to the rated output current Io,set = Io,nom D refers to the pulse width of the PWM signal T T refers to the cycle of the PWM signal Note: The formula only supplies as a reference, and the output current may be a little deviation with different load. The Ton(min) of PWM signal must be greater than 0.7ms, or the driver can’t be operated normally. It is natural for the driver to generate an audibly noise in dimming process, because the frequency of the control circuit is within human audibly range (20Hz~20kHz). In order to avoid the human eye can observe the LED flashes, the PWM dimming frequency is recommended to set above 100Hz. Analog Dimming Control and Application Example 16 +Vin 1 GND 9 VLD25-SMT 8 1st LED 5K1 0-10V On/Off (Optional) 10 5K6 Analog Input Voltage Ouput Current 2. 7 Last LED 9 9 9 9 9 9 Voltage Control (0-15 V max.) cui.com 9 For more information, please visit the product page. CUI Inc │ SERIES: VLD25-SMT │ DESCRIPTION: LED DRIVER 3. date 11/01/2012 │ page 5 of 6 EMC Recommended Circuit (Analog Dim) EMI/RFI conducted EN55022 recommended circuit 1.25mH + SMCG51 9 +Vout VLD25-SMT 1.0uF 2.2uF 470uF 10 16 +Vin 1.0uF Vout GND 8- 1 1st LED 7 Last LED (P W M D im/O N /O FF) EMI/EMC recommended circuit LCM 㻗 Vin V IN C0 C1 C2 DIM㻖 R1 DI M C3 G ND GND Load VO- 1. DIM pin is the module's PWM dimming pin 2. While adding circuit, it may extend the PWM dimming output reaction time EMI/EMC STANDARD ITEM STANDARD LEVEL PREDICATE REMARK EMI conducted EN 55015 power port qualification add external circuit 1 ESD IEC 61000-4-2:2001 level 2 B +4kV add external circuit 2 Surge IEC 61000-4-5:2004 level 2 B +1kV add external circuit 1 EFT IEC 61000-4-4:2004 level 2 B +1kV add external circuit 1 RECOMMENDED PARAMETERS COMPONENTS SPECIFICATIONS Tvs SMCJ48A, 1500 W (Bringtking) LCM 6.8 μh CD43 (CEAIYA) C0 470 μF / 50 V (CapXon) C1 4.7 μF / 50 V 1210 (TORCH) C2 2.2 μF / 50 V 1210 (TORCH) C3 470 PF / 100 V 0805 (TORCH) R1 680 Ω 0805 (can be replaced by inductance or magnetic bead) Recommended Reflow Soldering Profile 250 P ea k .Te mp 24 0 C 1 0 Se c M ax 220 C 200 Temperature ( C) 4. -Vout 2 1 Notes: +Vout VO+ VLD25-SMT Tvs 60 Sec Max (> 220 C ) 150 100 50 0 Time (sec.) cui.com For more information, please visit the product page. CUI Inc │ SERIES: VLD25-SMT │ DESCRIPTION: LED DRIVER date 11/01/2012 │ page 6 of 6 REVISION HISTORY rev. description date 1.0 initial release 02/20/2012 1.01 V-Infinity branding removed 09/07/2012 1.02 added TR package option 11/01/2012 The revision history provided is for informational purposes only and is believed to be accurate. Headquarters 20050 SW 112th Ave. Tualatin, OR 97062 800.275.4899 Fax 503.612.2383 cui.com [email protected] CUI offers a two (2) year limited warranty. Complete warranty information is listed on our website. CUI reserves the right to make changes to the product at any time without notice. Information provided by CUI is believed to be accurate and reliable. However, no responsibility is assumed by CUI for its use, nor for any infringements of patents or other rights of third parties which may result from its use. CUI products are not authorized or warranted for use as critical components in equipment that requires an extremely high level of reliability. A critical component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness.