VRA_LD-15WR2 / 2:1 / 15 watt / dc dc converter

Product catalog summary

Overview: The VRA(B)_LD-15WR2 & VRA(B)_LD-20WR2 series are DC/DC converters designed for wide voltage range input applications. They offer dual/single output options with features such as high efficiency, isolation voltage, and protection mechanisms.

Key Features:

Wide input voltage range (2:1)
Efficiency up to 90%
Isolation voltage of 1.5K VDC
Protection against over-voltage, over-current, and short circuits
Operating temperature range from -40℃ to +85℃
Metal shielding package
Compliance with CISPR22/EN55022 CLASS A and EN60950 standards
International standard pin-out

Applications: Suitable for data transmission devices, battery power supply devices, telecommunication devices, distributed power supply systems, remote control systems, and industrial robot systems.

Specifications:

Input Voltage: 12V, 24V, 48V with nominal ranges
Output Voltage: Options from 3.3V to 24V
Output Current: Varies by model, up to 4000mA
Efficiency: Ranges from 84% to 90% depending on the model
Max Capacitive Load: Varies by model, up to 18700µF

Input Specifications:

Input Current: Detailed for full load and no-load conditions
Reflected Ripple Current: 30mA for all input voltages
Input Impulse Voltage: Up to 100VDC for 48V input
Input Filter: Pi filter

Output Specifications:

Output Voltage Accuracy: ±1% to ±3%
Line and Load Regulation: ±0.2% to ±1%
Ripple & Noise: 70 to 100 mV p-p
Over-voltage and Over-current Protection: Specified for each output voltage

General Specifications:

Isolation Voltage: 1500 VDC
Operating Temperature: -40℃ to +85℃
Storage Temperature: -55℃ to +125℃
MTBF: 1000 K hours

Physical Specifications:

Casing Material: Aluminum alloy
Dimensions: Vary by package type
Weight: Varies by package type and presence of heat sink

EMC Specifications:

EMI: Compliance with CISPR22/EN55022 CLASS A/B
EMS: Compliance with IEC/EN61000 standards

Design Reference:

Typical application circuits provided
EMC solution-recommended circuit details
Trim application and resistance calculation formulas

Notes:

Modules should not be connected in parallel to increase power
Specifications are subject to change without notice

Catalog excerpts

VRA_LD-15WR2 / 2:1 / 15 watt / dc dc converter-1

DC/DC Converter VRA(B)_LD-15WR2 & VRA(B)_LD-20WR2 Series 15W&20W, wide input isolated & regulated dual / single output DC/DC converter Wide range of input voltage (2:1) Efficiency up to 90% Isolation voltage :1.5K VDC Output over-voltage, over-current and short circuit protection Operating temperature range: -40℃ to +85℃ Six-sided metal shielding package Meet CISPR22/EN55022 CLASS A A2S (wring mounting) and A4S (35mm rail mounting) products featuring anti-reverse connection for input Meet EN60950 International standard pin-out Patent Protection RoHS VRA(B)_LD-15WR2 & VRA(B)_LD-20WR2 series are applied to wide voltage range input situation such as data transmission device, battery power supply device, telecommunication device ,distributed power supply system, remote control system, industrial robot system etc. Selection Guide Output Voltage (VDC) Output Current (mA)(Max./Min.) Efficiency ③ (%,Min./Typ.) @ Full Load Nominal (Range) MORNSUN Guangzhou Science & Technology

Open the catalog to page 1

VRA_LD-15WR2 / 2:1 / 15 watt / dc dc converter-2

DC/DC Converter VRA(B)_LD-15WR2 & VRA(B)_LD-20WR2 Series VRB4815LD-15WR2 Note: ①Series with suffix “H” are heat sink mounting; series with suffix “A2S” are chassis mounting，with suffix “A4S” are DIN-Rail mounting, for example VRB2405LD-20WHR2A2S is chassis mounting of with heat sink,VRB2405LD-20WR2A4S is DIN-Rail mounting of without heat sink;If the application has a higher requirement for heat dissipation, you can choose modules with heat sink; ②Absolute maximum rating without damage on the converter, but it isn't recommended; ③The efficiency of A2S (wiring type) and A4S (rail type) products...

Open the catalog to page 2

VRA_LD-15WR2 / 2:1 / 15 watt / dc dc converter-3

DC/DC Converter VRA(B)_LD-15WR2 & VRA(B)_LD-20WR2 Series 12VDC input 48VDC input Input impulse max.) Reflected Ripple Current Input Filter Starting Time Nominal input & constant resistance load Module switch on Module switch off Input current when switched off -10 -ms Ctrl suspended or connected to TTL high level (2.5-12VDC) Ctrl pin connected to GND or low level (0-1.2VDC) -- Note: * The voltage of Ctrl pin is relative to input pin GND. Output Specifications Item Output Voltage Accuracy Operating Conditions Negative output Positive output Balance of Output Voltage Dual output, balanced load...

Open the catalog to page 3

VRA_LD-15WR2 / 2:1 / 15 watt / dc dc converter-4

DC/DC Converter Operating Tern per atureCC) Efficiency Vs Output Load(Vin=Vin-nominal) Input Voltage(V) Output Current Percentage (%) MORNSUN GUANGZHOU SCIENCE & TECHNOLOGY CO.,LTD. MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpre

Open the catalog to page 4

VRA_LD-15WR2 / 2:1 / 15 watt / dc dc converter-5

DC/DC Converter Efficiency Vs Input Voltage(Full Load) Efficiency Vs Output Load(Vin=Vin-nominal) Input Voltage(V) Output Current Perce ntage(%) Design Reference All the DC/DC converters of this series are tested according to the recommended circuit (see Fig. 2) before delivery, If it is reauired to further reduce input and output ripple, properly increase the input & output of additional capacitors Cin and Cout or select capacitors of low eauivalent impedance provided that the capacitance is no larger than the max. capacitive load of the product, EMC solution-recommended circuit PCB layout Note:...

Open the catalog to page 5

VRA_LD-15WR2 / 2:1 / 15 watt / dc dc converter-6

DC/DC Converter 1 .Application of Trim and calculation of Trim resistance +vot +vot Calculation formula of Trim resistance: OV OV Note: Leave open if not used. Rr: Resistance of Trim, a: User-defined parameter.no actual meanings. Trim up Trim down Applied circuits of Trim (Part in broken line is the interior of models) MORNSUN GUANGZHOU SCIENCE & TECHNOLOGY CO.,LTD. MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interp

Open the catalog to page 6

VRA_LD-15WR2 / 2:1 / 15 watt / dc dc converter-7

DC/DC Converter Dimensions (with heatsink) THIRD AMGLE PROJECTION MORNSUN GUANGZHOU SCIENCE & TECHNOLOGY CO.,LTD. MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation

Open the catalog to page 7

VRA_LD-15WR2 / 2:1 / 15 watt / dc dc converter-8

DC/DC Converter A2S Wiring Package Dimensions(with heatsink) THIRD ANGLE PROJECTION Front View MORNSUN GUANGZHOU SCIENCE & TECHNOLOGY CO.,LTD. MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation

Open the catalog to page 8

VRA_LD-15WR2 / 2:1 / 15 watt / dc dc converter-9

DC/DC Converter A4S Rail Package Dimensions(with heatsink) THIRD ANGLE PROJECTION Front View 1. Packing information please refer to Product Packing Information which can be downloaded from www.mornsun-power.com. Horizontal Packing Bag Number: 58200035(without heatsink),58200051 (with heatsink), A2S/A4S Packing Bag Number: 58220022; 2. Recommend to use module with more than 5% load, if not, the ripple of the product may exceeds the specification, but does not affect the reliability of the product; 3. The recommended unbalance degree of the dual output module load is <±5%; if the degree exceeds...

Open the catalog to page 9