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LDA48 Series
YDS
Non-isolated Step-down DC-DC LED Driver
Features :
24PIN DIL Package
Step-down Constant Current Output LED Driver
Wide Input Voltage Range
Short Circuit and Overtemp. Protected
High efficiency up to 98%
| Part Number | Input Range | Output Voltage | Constant Current |
|---|---|---|---|
| Vdc | Vdc | mA | |
| LDA48-0.30 | 36-72 | 18-70 | 300 |
| LDA48-0.35 | 36-72 | 18-70 | 350 |
| LDA48-0.50 | 36-72 | 18-70 | 500 |
| LDA48-0.60 | 36-72 | 18-70 | 600 |
| LDA48-0.70 | 36-72 | 18-70 | 700 |
| Parameters | Conditions | Min | Typ | Max | Units |
|---|---|---|---|---|---|
| Voltage Tolerance | Vo,Io nom | 36 | 48 | 72 | Vdc |
| Filter | Capacitor | 2.2 | μF |
| Parameters | Conditions | Min | Typ | Max | Units |
|---|---|---|---|---|---|
| Output Voltage Range | Vin=36V | 18 | 70 | Vdc | |
| Output Current Range | Vin - Vout >2.0V | 300 | 700 | mA | |
| Output Current Accuracy | Vin=48V, 12 LEDS | ± 5 | ± 8 | % | |
| Output Current Stability | Vin=48V, 5LED to 12 LEDS | ± 5 | ± 10 | % | |
| Efficiency at full load | 98 | % | |||
| Capacitive Load | 100 | μF | |||
| Short Circuit Protection | Continuous |
| Parameters | Conditions | Min | Typ | Max | Units |
|---|---|---|---|---|---|
| Operating Frequency | Full load, nominal input | 800 | KHz | ||
| Operation Temperature | 300mA / 350mA | -40 | +85 | ℃ | |
| 500mA/ 600mA/ 700mA | -40 | +71 | ℃ | ||
| Case Temperature | 100 | ℃ | |||
| Humidity | Non Condensing | 95 | % | ||
| Cooling | Free air Convectiong | ||||
| Wave Soldering Profile | 265℃/10 sec MAX | ||||
| Potting Material | Epoxy (UL94-V0) | ||||
| MTBF | MIL-HDBK-217F@25℃ | 2000000 | Hours | ||
| Case material | DAP | ||||
| Weight | 12.8 | g | |||
| Dimensions | 31.8x20.30x10.20 | mm | |||
| PWM | LED ON | <0.5 | Vdc | ||
| LED OFF | > 2 | Vdc | |||
Files Download 
LDA48-Series.pdf
Non-isolated Step-down DC-DC LED Driver
Features :
24PIN DIL Package
Step-down Constant Current Output LED Driver
Wide Input Voltage Range
Short Circuit and Overtemp. Protected
High efficiency up to 98%
| Part Number | Input Range | Output Voltage | Constant Current |
|---|---|---|---|
| Vdc | Vdc | mA | |
| LDA48-0.30 | 36-72 | 18-70 | 300 |
| LDA48-0.35 | 36-72 | 18-70 | 350 |
| LDA48-0.50 | 36-72 | 18-70 | 500 |
| LDA48-0.60 | 36-72 | 18-70 | 600 |
| LDA48-0.70 | 36-72 | 18-70 | 700 |
| Parameters | Conditions | Min | Typ | Max | Units |
|---|---|---|---|---|---|
| Voltage Tolerance | Vo,Io nom | 36 | 48 | 72 | Vdc |
| Filter | Capacitor | 2.2 | μF |
| Parameters | Conditions | Min | Typ | Max | Units |
|---|---|---|---|---|---|
| Output Voltage Range | Vin=36V | 18 | 70 | Vdc | |
| Output Current Range | Vin - Vout >2.0V | 300 | 700 | mA | |
| Output Current Accuracy | Vin=48V, 12 LEDS | ± 5 | ± 8 | % | |
| Output Current Stability | Vin=48V, 5LED to 12 LEDS | ± 5 | ± 10 | % | |
| Efficiency at full load | 98 | % | |||
| Capacitive Load | 100 | μF | |||
| Short Circuit Protection | Continuous |
| Parameters | Conditions | Min | Typ | Max | Units |
|---|---|---|---|---|---|
| Operating Frequency | Full load, nominal input | 800 | KHz | ||
| Operation Temperature | 300mA / 350mA | -40 | +85 | ℃ | |
| 500mA/ 600mA/ 700mA | -40 | +71 | ℃ | ||
| Case Temperature | 100 | ℃ | |||
| Humidity | Non Condensing | 95 | % | ||
| Cooling | Free air Convectiong | ||||
| Wave Soldering Profile | 265℃/10 sec MAX | ||||
| Potting Material | Epoxy (UL94-V0) | ||||
| MTBF | MIL-HDBK-217F@25℃ | 2000000 | Hours | ||
| Case material | DAP | ||||
| Weight | 12.8 | g | |||
| Dimensions | 31.8x20.30x10.20 | mm | |||
| PWM | LED ON | <0.5 | Vdc | ||
| LED OFF | > 2 | Vdc | |||
Files Download 
LDA48-Series.pdf
