Constant Current and Step-Down DC/DC converter : DLHR
DLHR - Constant Current LED Driver
Description
DC/DC converter-Constant Current LED Driver
DLHR series is a high efficiency, constant current and step-down DC/DC Converter. The LED driver operates an input voltage from 12Vdc to 56Vdc and provides an externally adjustable output current up to 1000mA and an output power up to 45 watts. It is able to include the function of over temperature protection (OTP), over current protection (OCP), and 3 in 1 dimming (dim-to-off) comprised by PWM generator, 0-10Vdc interface and resistor potentiometer. Especially its outward appearance design is suitable for LED track light application.Features
- For 48V LED track light application
- Efficiency up to 95%
- Constant current output up to 1A
- Wide input and output voltage range
- 3 in 1 dimming (dim-to-off)
- Short circuit and over temperature protection
- Internal SMD technology
- UL 94V-0 package material
Specification
INPUT Voltage Range | 12~56V |
Input Filter | Capacitor type |
Output Current Accuracy | ±6% max. Vin=48V, 10 LEDs |
Output Current Stability | ±8% max. Vin=48V, 1~10 LEDs |
OUTPUT Ripple & Noise | 350mVp-p max. |
OUTPUT Switching Frequency | 40KHz~1000KHz |
PWM DIMMING ON/OFF CONTROL Remote on/off(3 in 1 Dimming)::Leave open if not used ; Power on with dimming | DIM ~ -Vin >10 ~ 15Vdc or open circuit ; Power off : DIM~ -Vin < 9.5Vdc or short |
PWM DIMMING ON/OFF CONTROL Remote on/off::Leave open if not used ; Power on with dimming | DIM ~ -Vin >2.5 ~ 15Vdc or open circuit ; Power off : DIM ~ -Vin < 0.3Vdc or short |
PWM DIMMING ON/OFF CONTROL PWM Frequency | 100~1KHz |
PWM DIMMING ON/OFF CONTROL Quiescent Input Current in Shutdown Mode | 4mA max. , Vin=48V |
0-10 VDC DIMMING Input Voltage Range | 0~15V |
0-10 VDC DIMMING Control Voltage | Power on : DIM ~ -Vin >1~9Vdc ; Power off : DIM ~ -Vin < 0.9Vdc or short |
ANALOGUE VOLTAGE DIMMING Input Voltage Range | 0~15V |
ANALOGUE VOLTAGE DIMMING Control Voltage | Power on : DIM ~ -Vin >0.5~2.5Vdc ; Power off : DIM ~ -Vin < 0.3Vdc or short |
PROTECTION Short Circuit | Protection type : continuous, recovery |
PROTECTION Over Temperature | Tj 150°C typically(IC1) detect on main control IC ; Protection type : Shut down, recovers automatically after temperature goes down |
Cooling | Free-air convection |
Working Temperature | -40~ +71°C (refer to“Derating Curve”) |
Case Temperature | +110°C max. |
Working Humidity | 5% ~ 95% RH non-condensing |
Storage Temp., Humidity | -55 ~ +125°C,10 ~ 95% RH non-condensing |
Temperature Coefficient | ±0.03% / °C (0~+71°C) |
Soldering Temperature | 1.5mm from case of 3~5 sec./265°C(max.) |
Vibration | 10~500Hz, 2G 10min./1cycle, period for 60 min. each along X, Y, Z axes |
Isolation Voltage | Non-Isolation |
Safety Standards | EAC TP TC 004 approved |
EMC Emission | Compliance to EN55015 |
EMC Immunity | Compliance to EN61000-4-2,3,4,6,8, light industry level, criteria A |
MTBF | >650,000Hours |
Weight | 9.5g typ. |
Dimension(L*W*H) | 47mm*12mm*7mm |
Case Material | Non-conductive plastic |
Model
Model No. | I/P Vol. | O/P Vol. | O/P Current |
DLHR-0025Wxy | 12~56VDC | 2~45 VDC | 0~250mA |
DLHR-0030Wxy | 12~56VDC | 2~45 VDC | 0~300mA |
DLHR-0035Wxy | 12~56VDC | 2~45 VDC | 0~350mA |
DLHR-0050Wxy | 12~56VDC | 2~45 VDC | 0~500mA |
DLHR-0070Wxy | 12~56VDC | 2~45 VDC | 0~700mA |
DLHR-0100Wxy | 12~56VDC | 2~545 VDC | 0~1000mA |