DCDC
Specification
LED Driver
• Constant Current Output
• LED Drive Current up to 1000 mA
• LED Strings from 2 V to 14 V
• PWM & Analog Dimming Control
•
High Efficiency up to 93%
• Open or Short Circuit LED Protection
• 3 Year Warranty
LDU05/07/14 Series
Input
Input Voltage • 7-16 VDC
Input Filter • Capacitor
Input Surge • 20 VDC for 0.5 s
Output
Output Voltage • See tables
(Vin must be at least 2 V greater than Vout)
Output Current • See tables
Output Current Trim • 25-100%
Output Current • See tables
Accuracy
Ripple & Noise • See tables,
measured with 20 MHz bandwidth
Short Circuit Protection • Current is limited to the rated output
Temperature • ±0.03%/°C max
Coefficient
Remote On/Off • On = 0.3-1.25 V or open circuit
Off = ≤0.15 V (applied to control pin)
Quiescent input current is 25 µA max,
Remote On/Off Signal • 1 mA max
Current
Dimming
PWM
Output Current Range • 25% to 100%
Operating Frequency • 1 kHz max
On Time • 200 ns min
Off Time • 200 ns min
Amplitude • 1.25 V max
DC Voltage Control
Output Current Range • 25% to 100%
Control Input • 0.3 to 1.25 V max
Variable Resistor
Output Current Range • 25% to 100%
xppower.com
General
Efficiency • See tables
Switching Frequency • LDU05: 60-300 kHz variable
LDU07: 120-350 kHz variable
LDU14: 90-400 kHz variable
MTBF • >3.3 MHrs to MIL-HDBK-217F at 25 °C,
GB
Environmental
Operating Temperature • -40 °C to +85 °C except LDU14
1000 mA unit: -40 °C to +70 °C,
Storage Temperature • -40 °C to +125 °C
Humidity • Up to 95%, non-condensing
Thermal Impedance • 35 °C/W model dependant
EMC
Emissions • EN55022 class B conducted & radiated
with external components - see
application notes
ESD Immunity • EN61000-4-2, level 2 Perf Criteria A
Radiated Immunity • EN61000-4-3, level 2 Perf Criteria A
EFT/Burst • EN61000-4-4, level 2 Perf Criteria A
Surge • EN61000-4-5, level 2 Perf Criteria A
Conducted Immunity • EN61000-4-6, level 2 Perf Criteria A
