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Mean Well LDH-45A-700DA DC/DC LED Driver CC 700mA - Step-up

Name: Mean Well LDH-45A-700DA DC/DC LED Driver CC 700mA - Step-up
Brand: Mean Well
SKU: LDH-45A-700DA
Price: 19.84 USD
Availability: InStock

constant currentstep uphigh efficiency up to 95%pin style

SKU LDH-45A-700DA

$19.84 USD

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Available to order

Overview

LDH-45A-700DA is the model of this series: rated current 700mA, rated power 44.8W, typical efficiency 90%. Type DA: PIN style, DALI dimming.

Features

DC/DC step-up converter
Constant current output : 350mA to 1050mA
Wide output LED string voltage up to 126VDC
High efficiency up to 95%
DALI dimming [(Blank)DA type or WDA type]
Protections: Short circuit / Over voltage / Under voltage
Cooling by free air convection
Fully encapsulated
3 years warranty

Specifications

LDH-45A-700DASpecifications from the official datasheet (2024-10-16 edition)

OUTPUT

RATED CURRENT: 700mA
CURRENT ACCURACY(Typ.): ±5% at 12VDC input
VOLTAGE RANGE DALI^Note.2: 24~64VDC
NO LOAD OUTPUT VOLTAGE(max.): 75V
RATED POWER: 44.8W
RIPPLE & NOISE (max.)^Note.3: 1.9Vp-p

INPUT

RATED VOLTAGE: 12VDC
VOLTAGE RANGE^Note.2: 9~18VDC
EFFICIENCY (max.): 90%
DC CURRENT (Typ.): 4.2A

ANALOG DIMMING & ON/OFF CONTROL

DIM INPUT VOLTAGE RANGE: 0.25~1.3VDC
MAX OPERATION VOLTAGE: 8V; The output current remains constant when voltage changes from 1.3V to 8V

PROTECTION

SHORT CIRCUIT: Protection type : Power OFF and fuse open
OVER VOLTAGE (max.): 75V Protection type : Constant output voltage and shut off o/p current, recovers automatically after fault condition is removed

ENVIRONMENT

WORKING TEMP.: -40 ~ +70℃ (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: 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: 12195.2K hrs min. Telcordia SR-332 (Bellcore) ; 1179.3K hrs min. MIL-HDBK-217F (25℃)
DIMENSION: 75*53*22.7mm (L*W*H)
PACKING: 138g;100pcs/14.8Kg/0.83CUFT[(Blank) DA type]

MODEL ENCODING

A: 9~18VDC input range
B: 18~32VDC input range
Blank: PIN style, PWM+analog dimming
W: Wire style, PWM+analog dimming
DA (this model): PIN style, DALI dimming
WDA: Wire style, DALI dimming

Test conditions and notes3

1. All parameters are specified at normal input(12VDC,24VDC), rated load, 25℃ 70% RH ambient.
2. (Blank)DA type output voltage must step up by 12 Volts from input DC voltage.
3. Ripple & noise are measured at 20MHz of bandwidth by using a 12" twisted pair-wire terminated with a 0.1uf parallel capacitor.

Technical drawings

LDH-45A-700DA Mechanical Specification — Mechanical Specification

LDH-45A-700DA Standard Application — Standard Application

LDH-45A-700DA Efficiency VS Output Voltage(Number — Efficiency VS Output Voltage(Number

LDH-45A-700DA Application Notes of EMC — Application Notes of EMC

Downloads

Datasheet1

LDH-45A-700DA datasheetLDH-45-spec.pdf · 2024-10-16 edition PDF Download

Certificates3

Mean Well LDH-45-EMC Certificate PDF Download

Mean Well LDH-45(DA)-CE-dec Certificate PDF Download

Mean Well LDH-45(DA)-UK-dec Certificate PDF Download

Test reports1

Mean Well LDH-45A-700 Test Report PDF Download

Catalogues1

Mean Well LED Driver Catalog PDF Download

FAQ

Can the LDH-45A-700DA be used with 700mA LED downlights that need a higher LED string voltage?

Yes, this model is suited to constant current 700mA downlights when the LED load operates within its 24-64V constant current range. It is rated for 44.8W, so both current and total load power need to match.

Is this driver appropriate for a 700mA signage module assembly?

It can be used for signage modules if the assembly is designed for 700mA constant current operation. The driver regulates across 24-64V and is not intended for constant voltage LED products.

Can I use this for a small LED array in harsh weather or dusty areas?

The datasheet gives no IP or waterproof rating, so in harsh weather or dusty areas the driver must be protected by the fixture; the operating temperature range is -40°C to +70°C (refer to the derating curve). Electrically, the LED array still needs to be a 700mA constant current load within 24-64V and 44.8W.

Will this driver work with my LED string, and how many LEDs can I put on it?

This driver provides 700mA constant current with a 24-64V output range, so compatibility depends on whether your LED string is designed for that current and falls inside that voltage window. The number of LEDs depends on each LED's forward voltage, so there is no single fixed LED count for this model.

Is the LDH-45A-700DA suitable for outdoor enclosures and wide temperature swings?

It operates from -40°C to +70°C (refer to the derating curve), which covers wide temperature swings. No IP or waterproof rating is listed and humidity is rated 20-90% RH non-condensing, so the outdoor enclosure must keep out water and condensation.

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Mean Well LDH-45A-700DA DC/DC LED Driver CC 700mA - Step-up

Overview

Features

Specifications

OUTPUT

INPUT

ANALOG DIMMING & ON/OFF CONTROL

PROTECTION

ENVIRONMENT

SAFETY & EMC

OTHERS

MODEL ENCODING

Technical drawings

Downloads

Datasheet1

Certificates3

Test reports1

Catalogues1

FAQ

Payment & Security

Write a review

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Mean Well LDH-45A-700DA DC/DC LED Driver CC 700mA - Step-up

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