RCDE-48 Series
- Low cost buck LED driver
- 6-60V input
- Constant current output (350, 700 or 1050mA)
- Digital PWM and analogue voltage dimming
- High efficiency up to 97%
- no internal E-Caps
- RoHS2 conform
The RCD-48 series is a step-down constant current source designed for driving high power LED applications from 12V, 24V or 48V nominal input voltages. 350, 700 or 1050mA output currents are available as standard. The input voltage range is from 6V up to 60VDC with UVLO. These high efficiency buck drivers have digital PWM and/or analogue voltage dimming control which is capable of being controlled by 3.3V logic. The dimming input can also be used as an CTRL pin. Typical application is a 48V powered lighting solution for up to 15 high brightness LEDs in series.
| Part Number | Power (W) | Isolation | Vin (V) | Main Vout (V) | Package Style | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 |
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RCDE-48-0.35
Focus
| 18.2 | 6 - 60 | 3 to 52 | DIP24 |
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)
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| 2 |
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RCDE-48-0.70
Focus
| 36.4 | 6 - 60 | 3 to 52 | DIP24 |
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)
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| 3 |
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RCDE-48-1.05
Focus
| 54.6 | 6 - 60 | 3 to 52 | DIP24 |
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)
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| Attributes | RCDE-48 |
|---|---|
| Product Category | DC/DC |
| Vin (V) | 6 - 60 |
| Main Vout (V) | 3 to 52 |
| Output Voltage Range (V) | 3 - 52 |
| Nr. of Outputs | Single |
| Mounting Type | THT |
| Package Style | DIP24 |
| Length (mm) | 32.1 |
| Width (mm) | 20.6 |
| Height (mm) | 12.3 |
| MIN Operating Temp (°C) | -40 |
| Protections | OTP |
| Control Pin Function | Enabled |
| Directives | REACH, RoHS 2+ (10/10) |
| Packaging Type | Tube |
| Operating Modes | CC, Dimming |
| Warranty | 3 Years |
| Regulation | Regulated |
| Part Number | Power (W) | Vout 1 (V) | Vin (V) | Mounting Type | |||||
|---|---|---|---|---|---|---|---|---|---|
| 1 |
|
RCDE-48-0.35
Focus
| 18.2 | 6 - 60 | THT |
|
|
||
| 2 |
|
RCDE-48-0.70
Focus
| 36.4 | 6 - 60 | THT |
|
|
||
| 3 |
|
RCDE-48-1.05
Focus
| 54.6 | 6 - 60 | THT |
|
|
서류
| 표제 | Type | 날짜 |
|---|---|---|
| RCDE-48.pdf | Datasheet |
Links
| 표제 | Type | 날짜 |
|---|---|---|
| UV LEDs for Disinfection and Sterilization | Blog Article | 2021. 7. 16 |
| 입력 범위가 넓고 밝기 조절이 가능한 1A LED 드라이버, 최대 15개의 고휘도 LED 스트링 구동에 적합 | Official Press Release | 2020. 1. 16 |
The PWM-control pin can be used as remote control pin as well. It means you can switch the unit on/off via this pin. Switching level is TTL compatible and has hysteresis to allow slow switching waveforms.
Yes, our RACVxx series offer constant voltage outputs. The difference between a lighting CV driver and an industrial CV power supply is that the RACV's have full LED lighting certifications. (note: industial power supplies need PFC only above 75W. LED lighting regulations specify PFC from 25W. It is not permitted to use non-PFC power supplies above 25W)
Yes, for our AC input drivers we offer 0-10V analog dimming, TRIAC dimming and Thermal dimming.
The analog voltage is used to control an internal PWM circuit.
The controller chip has a multi-stage shutdown:
On : Open or 0V < Vr < 0.6V
minimum quiescent current - all circuits shut down - slowest restart response time
Off (Standby) : 0.6V < Vr < 2.9V
output power stage and PWM oscillator off - medium restart response time
Off (Shutdown) : 2.9V < Vr < 6V
output power stage off, all other circuits active - quickest restart response time
On : Open or 0V < Vr < 0.6V
minimum quiescent current - all circuits shut down - slowest restart response time
Off (Standby) : 0.6V < Vr < 2.9V
output power stage and PWM oscillator off - medium restart response time
Off (Shutdown) : 2.9V < Vr < 6V
output power stage off, all other circuits active - quickest restart response time
The RCD-24 series is step-down (buck) converter. You always need a higher input voltage than the output voltage required. A high power LED usually has a forward voltage drop of around 3.4V, so only three LEDs can be drivenin series from a 12V source. If the input voltage is increased to 24V, seven LEDs can be in the chain and if the input voltage is 36V, then ten LEDs can be driven.
However, it is possible to connect chains of LEDs in parallel, so a RCD-24-7.0 can drive two chains of three 350mA LEDs connected in parallel.
Remember that this part is a constant current converter, so the output voltage is variable depending on the power needed, but it will always be lower than the input voltage.
However, it is possible to connect chains of LEDs in parallel, so a RCD-24-7.0 can drive two chains of three 350mA LEDs connected in parallel.
Remember that this part is a constant current converter, so the output voltage is variable depending on the power needed, but it will always be lower than the input voltage.
The RCD series is a All-in-One solution in a small package with high efficiency, wide input range, two different ways of dimming Analog and Digital (PWM), high operating temperature range, and it’s fully tested. You don’t have to worry about all different suppliers of all the components of your discrete solution.
The linearity outside the 10~90% range of the PWM dimming is not perfect, but still pretty good. The Analog dimming can be used in a 0~100% range.