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
Mechanical Drawing (Unit: mm)

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