For more information, please visit the product page. date 11/28/2012 page 1 of 6 SERIES: VLD25-DIP │ DESCRIPTION: LED DRIVER FEATURES • • • • • • • power LED driver wide input and output voltage range DIP package constant current output PWM dimming and analog dimming short circuit protection high efficiency up to 95% input voltage output voltage output current ripple and noise range (Vdc) range (Vdc) range (mA) max (mVp-p) VLD25-300-DIP 5.5 ~ 46 3.3 ~ 36 0 ~ 300 120 PWM+analog 95 VLD25-350-DIP 5.5 ~ 46 3.3 ~ 36 0 ~ 350 120 PWM+analog 95 VLD25-500-DIP 5.5 ~ 46 3.3 ~ 36 0 ~ 500 120 PWM+analog 95 VLD25-600-DIP 5.5 ~ 46 3.3 ~ 36 0 ~ 600 120 PWM+analog 95 VLD25-700-DIP 5.5 ~ 46 3.3 ~ 36 0 ~ 700 120 PWM+analog 95 MODEL PART NUMBER KEY VLD25 - XXX -DIP Base Number Output Current cui.com dimming control efficiency typ (%) For more information, please visit the product page. CUI Inc │ SERIES: VLD25-DIP │ DESCRIPTION: LED DRIVER date 11/28/2012 │ 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, Vc < 0.6 V filter typ max units 24 55 46 Vdc Vdc 400 μA capacitor 1 μF remote on/off dc-dc ON dc-dc OFF open or 2.8 V < Vc < 6V Vc < 0.6 V remote pin current Vc = 5V PWM frequency input voltage - analog dimming Vin = 5.5 ~ 4.6 V control voltage analog dimming full on full off driving current analog dimming Vc = 5 V 0 0.15 4.3 1 mA 0.2 kHz 15 V 0.25 4.7 V V 0.2 A max units 36 Vdc 3 4 Vdc ±3 ±5 ±5 ±7 % % 100 % ±1 % ±0.015 %/°C 1,000 μF max units max units 85 71 °C °C 0.20 4.5 OUTPUT parameter conditions/description min voltage range Vin = 46 V , Vo = 3.3 V ~ 36 V 3.3 voltage drop Vin = 5.5 ~ 46 V, 1 ~ 10 LED current accuracy 300~600 mA 700 mA output current range analog dimming Vin = 5.5 ~ 46 V, 1 ~ 10 LED current stability Vin = 46 V, Vo = 3.3 V ~ 36 V temperature coefficient -40 ~ 71°C ambient 2 typ 0 capacitive load PROTECTIONS parameter conditions/description short circuit protection continuous automatic recovery min typ SAFETY AND COMPLIANCE parameter conditions/description EMI/EMC EN 55015 power port, CISPR22 Class B, 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 cui.com typ 125 °C 100 °C For more information, please visit the product page. CUI Inc │ SERIES: VLD25-DIP │ DESCRIPTION: LED DRIVER date 11/28/2012 │ page 3 of 6 DERATING CURVE Operating Temp.( C ) MECHANICAL parameter conditions/description dimensions 0.898 x 0.402 x 0.535 inch (22.80 x 10.20 x 13.60 mm) min case material epoxy resin (UL94-V0) typ weight max units 4.3 g MECHANICAL DRAWING 2.54 [0.100] 7.62 [0.300] unit: mm(inch) Pin tolerances: ±0.10mm(±0.039inch) General tolerances: ±0.25mm(±0.010inch) 2 2.80 [0.898] 17.78 [0.700] 5 10.20 [0.402] 4 3 (Bottom View) 2 6 1 9.50 [0.374] Side View 0.50 [0.020] 9.50 [0.374] 10.20 [0.401] 4.10 [0.161] ∅0.50 [0.020] 7.62 [0.300] PIN CONNECTIONS RECOMMENDED FOOTPRINT (TOP VIEW) Function 1 Vin 2 analog dimming 3 ON/OFF/PWM 1 4 GND 2 5 -Vout 3 6 +Vout ∅0.80 [0.031] 1 7 .7 8 [0 .7 0 0 ] 6 4 5 2 .5 4 [0 .1 0 0 ] cui.com 2.54 [0.100] Pin For more information, please visit the product page. CUI Inc │ SERIES: VLD25-DIP │ DESCRIPTION: LED DRIVER date 11/28/2012 │ page 4 of 6 APPLICATION NOTES 1. Typical Application Circuits (Analog Dimming Control) (Analog Dimming Control) 2 1 +Vin 6 +Vout 6 +Vout VLD25-DIP VLD25-DIP GND 2 1 +Vin GND 5 -Vout 1st LED 4 P TC P TC 5 -Vout 4 1st LED 3 3 Last LED Last LED ( PWM Di m/ON/O FF) (PWM D im/ON / OFF) Series Application Parallel-series Application To protect the LED(s), you could connect a PTC to input of all channels as shown in application circuit. Note: Negative output terminal should not conneted to GND. Module may be damaged. 2. Digital Dimming Control PWM Digital Control Signal PWM Digital Control Signal PWM Digital Control Signal 1 1 1 0 0 0 Output Current(LED appears bright) Output Curr ent Output Current(LED appears dim) 1 1 0 0 Formula for output current: Io,set = (DT-0.8) T Io,set refers to the expected output current value. Io,norm refers to the rated output current D refers to the pulse width of the PWM signal T refers to the cycle of the PWM signal Io,nom Note: This formula is only supplied as a reference and the output current may be deviated from for different load conditions. The Ton(min) of PWM signal must be greater than 0.8ms, otherwise the driver cannot be operated normally. It is natural for the driver to generate audible noise during dimming process because the frequency of the control circuit is within human audible range (20Hz~20kHz). In order to make the LED flashes not visible to human eye, the PWM dimming frequency is recommended to be set above 100Hz. PWM curve (Vin=24 V, 5 LEDs) Analog Dimming Control and Application Example 1 +Vin 4 GND 6 VLD25-DIP 5 1st LED 15K 0-10V On/Off (Optional) 2 6K8 Analog Input Voltage Ouput Current 3. 3 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-DIP │ DESCRIPTION: LED DRIVER 4. date 11/28/2012 │ page 5 of 6 EMC Recommended Circuit L1 1 㻗 Vi n EMI/EMC recommended circuit Tvs C1 C2 C3 R1 DIM 㻖 3 6 +Vou t VLD25-DIP C4 C6 4 G ND 5 -Vou t 1st LED 1 C5 RECOMMENDED PARAMETERS COMPONENTS SPECIFICATIONS Tvs SMC51A, 1500 W (ON) L1 CD53-82μH (CEAIYA) C1 470μF/100V (NCC) C2 225K/50V 1210 X7R (TORCH) C3 104K/50V 0805 X7R (TORCH) C4 105K/50V 0805 X7R (TORCH) C5 102K/2000V 1210 (TDK) C6 470pF/100V 0805 (TORCH) R1 680Ω 0805 (can be replaced by inductance or magnetic bead) cui.com Last LED For more information, please visit the product page. CUI Inc │ SERIES: VLD25-DIP │ DESCRIPTION: LED DRIVER date 11/28/2012 │ page 6 of 6 REVISION HISTORY rev. description date 1.0 initial release 10/15/2012 1.01 misc. updates 11/02/2012 1.02 added product photo 11/28/2012 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.