DAA500 Series

Product catalog summary

Specifications
The DAA/DAB/DAC series of DC/DC converters support input voltages of 12, 24, 48, 72, and 110VDC, available in power packages of 150W, 300W, and 500W. They offer output voltages from 3.3V to 48VDC. Key features include compliance with EN55022 for input filtering, transient and reverse polarity protection, and capability for parallel or series configurations. They meet military standards (MILSTD1275, 461, 810, 704) and safety standards (IEC/EN60950-1, ROHS compliant).

Description
The converters are compact and designed for industrial, railway, and defense applications, featuring robust mounting, input/output protections, and optional conformal coating. They provide high reliability, efficiency, input-to-output isolation, soft start, overtemperature protection, and input over/undervoltage lockout. They are surge and transient protected, EMI filtered, short-circuit proof, and can operate with a baseplate temperature up to 100°C.

Options
Available options include:

Heatsink (H): Aluminum baseplate with optional 15mm heatsink.
Ruggedized (M): Compliance with MIL-STD810E and MIL-STD461E for DAA and DAB series.
-40°C operation (T): Components rated for low temperatures.
Conformal coating (V): Acrylic coating for high humidity environments.

Electrical Data
Features include input fuses, transient and reverse polarity protection, support for parallel/series operations, redundant operation with oring diodes, limited hold-up time, continuous short-circuit protection, and thermal protection with automatic restart. They have remote on/off control, output voltage adjustment, and sense lines for voltage drop compensation. A green LED indicates power status, and a paralleling signal is available.

Environmental and Standards
Designed to withstand damp heat, shock, and vibrations per MIL STD 810. They offer electrical strength with input-to-earth, input-to-output, and output-to-earth isolation, with insulation resistance over 100Mohms. They meet safety standards IEC 60950-1 and EN60950-1, and railway standards EN50155 and EN50121, complying with electromagnetic immunity standards.

Overview
The document details the DAB and DAC series of DC/DC converters, focusing on models with different input voltages and output characteristics, part of the POWERBOX Defense Line for conduction-cooled applications.

Specifications
Lists models with output voltages (3.3V to 48V), output power (50W to 300W), and efficiency ratings (up to 89%). Key parameters include voltage adjustment, overvoltage protection, output current, current limit, short circuit current, output noise, and load regulation.

Procedures and Standards
Testing conditions include a 25°C ambient temperature, with notes on recycling input voltage, output voltage limits, and noise measurement bandwidth.

Mechanical Details
Includes mechanical drawings for the DAA, DAB, and DAC series, specifying dimensions and mounting hole placements for system integration.

Key Data Summary

Output Voltage Range: 3.3V to 48V
Output Power Range: 50W to 300W
Efficiency: Up to 89%
Load Regulation: Typically 0.2%

Recommendations
Ensure proper recycling of input voltage for restart and adhere to specified conditions for optimal performance. Consider mechanical dimensions for system integration.

Catalog excerpts

POWERBOX Defense Line DAA/DAB/DAC Series 150W to several kWs DC/DC Conduction Cooled Preliminary Features_ 3 packages 150, 300W, 500W Output from 3V3 to 48VDC Input filtering EN55022 & transient protection Reverse polarity protection Several outputs, parallel or series operations up to several kWs MILSTD1275, 461, 810, 704 options_ Safety IEC/EN60950-1, ROHS lead-free-solder compliant Description The DAA/DAB/DAC, very compact DC/DC converter in chassis mount format, incorporates input filtering, input and output protections, very robust mechanical mounting and connection, optional conformal coating, required in most of the severe environment for industrial, railways, defense type of applications. The converter provides high reliability, high efficiency, input-to-output isolation, soft start, overtemperature protection, input over/undervoltage lockout. The converters wide range of inputs are protected against surges and transients and EMI filtered. The outputs are countinuously short-circuit proof. The 100°C baseplate operation allows operation in high temperature environment. The output can be configured in many different output voltages from 3V3 to 48VDC, can be put in series and parallel, others possibilities are even possible as semi-standard versions. Wide range of accessories like input & output Bus bars, N+1 oring diodes, parallel cables are available to simplify multi units assemblies. Military options (M) make it suitable for MIL STD compliance. Options Heatsink (H) The unit is built as standard with a aluminum baseplate as described in the mechanical data. The converter can be delivered with a 15mm heatsink. Ruggedized (M) The unit can be ruggedized to meet MIL-STD810E, MIL-STD461E CE102, on DAA and DAB series only. M option with 24V & 24V wide input will comply with MIL STD 1275A. -40°C operation (T) The thermal grade of the components are comply with low ambient temperature. Conformal coating (V) During manufacturing process components and pcb are covered with an acrylic coating to address high level of ambiant humidity application. Electrical data Input data See table, page 2. Input fuse Protects against damages in case of a failure. Input transient protection Yes. Input reverse polarity A diode placed internally. Parallel/series Possible. Redundant operation Oring diodes are required to ensure proper N+1 operation (included with optional N+1 bus bar). Hold-up time Limited hold-up time. Output current limitation Continously protected against short-circuit. Thermal considerations Baseplate which should not exceed 100°C. Thermal protection OTP protection, automatic restart. Primary inhibit Remote on/off. Output voltage adj. Yes. Sense lines Enables compensation of voltage drop. V1, total drop <0.5, negative line drop <0.25. Power good Green LED. Paralleling signal Yes. Environmental Damp heat MIL STD 810 Proc. 507-2. ShockMIL STD 810 Proc. 516.3 Vibrations MIL STD 810 Proc. 514-5. General Electric strenght Input to earth 1500Vrms. Input to output 3000Vrms. Output to earth 500Vrms. Insulation resistance >100Mohms. Standards Safety standards IEC 60950-1, EN60950-1. Railway application Designed to meet EN50155, EN50121. Electromagnetic immunity Supply surge EN50155.

Open the catalog to page 1

POWERBOX Defense Line DAA/DAB/DAC Series 150W to several kWs DC/DC Conduction Cooled Active transient protection

Open the catalog to page 2

POWERBOX Defense Line DAA/DAB/DAC Series 150W to several kWs DC/DC Conduction Cooled Characteristics Conditions Number min typ max min typ max min typ max min typ max min typ max Units Operating input voltage 9 36 18 36 36 75 43 110 66 143 V Input current Vin min DAA 30 33 16.2 11 7.2 A DAB211658673.6 A DAC151036461.8 a No load input powerDAA8 178 148 1611 1711 15 W Input capacitance No inrush DAA 440 440 44 20 20 uF Part Number Structure Chassis Input Output Power Input...

Open the catalog to page 3

POWERBOX Defense Line DAA/DAB/DAC Series 150W to several kWs DC/DC Conduction Cooled Output Data DAA Series General conditions : 25°C ambiant. 1) Recycle input voltage or inhibit to restart (>100ms off) - 2) Output voltage 95 % of nominal - 3) Output voltage < 250mV - 4) Nominal input, full load, 20MHz bandwidth - 5) No load to full load, nominal input Model Number

Open the catalog to page 4

POWERBOX Defense Line DAA/DAB/DAC Series 150W to several kWs DC/DC Conduction Cooled General conditions : 25°C ambiant. 1) Recycle input voltage or inhibit to restart (>100ms off) - 2) Output voltage 95 % of nominal - 3) Output voltage < 250mV - 4) Nominal input, full load, 20MHz bandwidth - 5) No load to full load, nominal input

Open the catalog to page 5

POWERBOX Defense Line DAA/DAB/DAC Series 150W to several kWs DC/DC Conduction Cooled Output Data DAC Series General conditions : 25°C ambiant. 1) Recycle input voltage or inhibit to restart (>100ms off) - 2) Output voltage 95 % of nominal - 3) Output voltage < 250mV - 4) Nominal input, full load, 20MHz bandwidth - 5) No load to full load, nominal input

Open the catalog to page 6