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Mean Well LDH DC/DC LED Driver CC 1750mA - Step-up

Name: Mean Well LDH DC/DC LED Driver CC 1750mA - Step-up
Brand: Mean Well
SKU: LDH-65-1750
Price: 15.53 USD
Availability: InStock

constant currentstep uphigh efficiency up to 95%pin style

SKU LDH-65-1750

$15.53 USD

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Overview

LDH-65-1750 is the model of this series: rated current 1750mA, rated power 64.75W, typical efficiency 92.5%/12V 96%/24V.

LDH-65 series is a 65W DC/DC LED driver featuring constant current output. LDH-65 operates from 9.5～32VDC and offers models with different rated current ranging between 700mA and 1750mA. With the high efficiency up to 96%, The 94V-0 flame retardant plastic case the fully-potted silicone enhance the heat dissipation allows this series to fit solar LED street light. LDH-65 is equipped with various function options, such as dimming methodologies, so as to provide the optimal design flexibility for DC source LED lighting system.

Features

Wide DC input voltage operation 9.5~32V
DC/DC step-up converter
Constant current output : 700mA to 1750mA
Wide output LED forward voltage up to 80V DC
High efficiency up to 96%
2 in 1 dimming (0-10V,PWM)
Protections: Short circuit / Over voltage
Cooling by free air convection
Fully encapsulated
3 years warranty

Specifications

LDH-65-1750Specifications from the official datasheet (2024-10-16 edition)

OUTPUT

RATED CURRENT: 1750mA
CURRENT ACCURACY(Typ.): ±5% at 12VDC input and 24VDC input
VOLTAGE RANGE^Note.2: 12.5~37VDC
RATED POWER: 64.75W
CURRENT RIPPLE: 5%(@rated current)

INPUT

VOLTAGE RANGE^Note.2: 9.5~32VDC
EFFICIENCY (Typ.): 92.5%/12V 96%/24V
DC CURRENT (Typ.): 6.2A/12VDC, 3.1A/24VDC

DIMMING

DIMMING FUNCTION^Note.2: Leave open if not used 1KHz-3KHz 10V PWM signal or 0-10V DC input
QUIESCENT INPUT CURRENT IN SHUTDOWN MODE(Typ.): 10mA when PWM dimming OFF @12VDC

PROTECTION

SHORT CIRCUIT: Output short circuit, the power supply will be damaged
OVER VOLTAGE: 38~60V
NO LOAD: Output voltage rise to OVP, and drop equal to input voltage, re-power to recovery

ENVIRONMENT

WORKING TEMP.: -40 ~ +60℃ (Refer to "Derating Curve")
WORKING HUMIDITY: 20 ~ 90% RH non-condensing
STORAGE TEMP., HUMIDITY: -40 ~ +85℃, 10 ~ 95% RH
TEMP. COEFFICIENT: ±0.03%/℃ (0 ~ 50℃)
VIBRATION: 10 ~ 500Hz, 2G 10min./1cycle, period for 60min. each along X, Y, Z axes
SOLDERING TEMPERATURE: Wave soldering: 265℃,5s (max.); Manual soldering: 390℃,3s (max.)

SAFETY & EMC

SAFETY STANDARDS: LVD BS EN/EN61347-1, BS EN/EN61347-2-13, EAC TP TC 004 approved
EMC EMISSION^Note.5: Compliance to BS EN/EN55015;EAC TP TC 020
EMC IMMUNITY: Compliance to BS EN/EN61547,BS EN/EN61000-4-2,3,4,6,8; light industry level, EAC TP TC 020

OTHERS

MTBF: 9118.4K hrs min. Telcordia TR/SR-332(Bellcore); 874.9 Khrs min. MIL-HDBK-217F (25℃)
DIMENSION: 75*53*22.7mm (L*W*H)
PACKING: Pin mounted style: 152g; 100pcs/15.2kg/0.86CUFT Lead wire style: 159g; 100pcs/15.9kg/1.07CUFT

Test conditions and notes5

1.All parameters are specified at normal input(12VDC), rated load, 25℃ 70% RH ambient.
2.Non dimming application: Output voltage must step up by 3 volts from input DC voltage Dimming application: Output voltage must be twice higher than the input DC voltage If input voltage down below 11, the output current may drop to more than 80% of the rated current
3.This series meets the typical life expectancy of >35,000 hours of operation when Tcase, particularly tc point (or TMP, per DLC), is about 80℃ or less.
4.The ambient temperature derating of 3.5℃/1000m with fanless models and of 5℃/1000m with fan models for operating altitude higher than 2000m(6500ft).
5.BS EN/EN55015 EMI testing layout is based on DC input with a battery source.

Technical drawings

LDH-65-1750 Mechanical Specification — Mechanical Specification

LDH-65-1750 Standard Application — Standard Application

LDH-65-1750 Efficiency VS Load — Efficiency VS Load

LDH-65-1750 Application Notes of EMC — Application Notes of EMC

Typical applications

DC battery source lighting
Portable lighting
LED solar street lighting
LED greenhouse lighting
LED Low-bay lighting

Downloads

Certificates2

CE Certificate(LDH-65)(EN) PDF Download

EMC Certificate(LDH-65)(EN) PDF Download

FAQ

Can I use the LDH-65-1750 for high-power LED downlights?

Yes, this driver can fit LED downlights that require a constant current output of 1750mA and operate within a 12.5-37V constant current range. Its 64.75W rating suits higher-power downlight assemblies, and the step-up design is intended for LED loads rather than constant voltage lighting products.

Is the LDH-65-1750 suitable for LED signage modules?

It can be used for signage modules only when the module is designed for constant current operation at 1750mA and the total LED load falls within the 12.5-37V CC output range. It is not the right choice for standard constant voltage sign modules that expect a fixed voltage supply.

Can this driver run a small LED array from a low-voltage source?

Yes, the LDH-65-1750 is a step-up constant current driver with a 9.5-32VDC input and a 12.5-37V CC output range, so it is intended for LED arrays that need current regulation rather than fixed voltage. It is best matched to arrays specified for 1750mA constant current operation.

How do I know if my LEDs are compatible with the LDH-65-1750?

Your LED load needs to be rated for constant current operation at 1750mA, and the total forward voltage of the LEDs must stay within the 12.5-37V CC output range. The number of LEDs depends on each LED's forward voltage, so there is no fixed LED count for this model.

What is the difference between the LDH-65-1750 and the other LDH-65 models?

Within the LDH-65 group, the sibling specs are: LDH-65-700 and LDH-65-700W at 700mA with a 12.5-80V CC range and 56W, LDH-65-1050 and LDH-65-1050W at 1050mA with a 12.5-60V CC range and 63W, LDH-65-1400 and LDH-65-1400W at 1400mA with a 12.5-46V CC range and 64.4W, and LDH-65-1750W at 1750mA with a 12.5-37V CC range and 64.75W. The LDH-65-1750 shares the same 1750mA, 12.5-37V, and 64.75W specs as the LDH-65-1750W, with the product difference shown as pin style versus wire style.

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