QA123-1509R3 Model Information

Basic Information

• Model: QA123-1509R3
• Manufacturer: MORNSUN Guangzhou Science & Technology Co., Ltd.
• Category: DC/DC Converter for IGBT Driver

Model Number Explanation

• QA: Indicates the product series, representing a DC-DC converter designed for IGBT drivers.
• 123: Corresponds to the input voltage range of 12VDC (10.8-13.2V) and other electrical characteristics.
• 1509: Signifies the output voltage of +15.0V and -9.0V.
• R3: Denotes the version or variant of the product.

Electrical Specifications

• Input Voltage Range: 12VDC (10.8-13.2V)
• Output Voltage:+Vo: +15.0V (Typ.) with a range of 13.50V to 15.00V-Vo: -9.0V (Typ.) with a range of -7.92V to -8.82V
• Output Current:+Io: +100mA-Io: -100mA
• Efficiency: 82% (Typ.)
• Capacitive Load: 2200µF (Max.)
• Isolation Capacitance: 3.5pF (Typ.)
• CMTI: >200kV/µs
• Continuous Barrier Withstand Voltage: 1700V
• I/O Isolation Test Voltage: 5000VAC

General Specifications

• Operating Ambient Temperature Range: -40℃ to +105℃
• Storage Temperature: -55℃ to +125℃
• Pin Soldering Resistance Temperature: 300℃ for 10 seconds
• Case Temperature Rise: 30℃ to 60℃ (Ta=25℃, nominal input voltage, full load)
• Switching Frequency: 200kHz (Typ.)

Safety and EMC

• Safety Standard: EN62368-1
• Safety Class: CLASS III
• MTBF: 3500k hours (MIL-HDBK-217F@25℃)
• EMC:Emissions: CISPR32/EN55032 CLASS B (5V Input model) / CLASS A (Other Input models)Immunity: IEC/EN61000-4-2 Contact ±6kV (5V Input model) / ±8kV (Other Input models) perf. Criteria B

Mechanical Specifications

• Case Material: Black plastic; flame-retardant and heat-resistant
• Dimensions: 19.50 x 9.80 x 12.50mm
• Weight: 4.3g (Typ.)
• Cooling Method: Free air convection

Applications

• General Applications:Universal converterAC servo drive systemElectric welding machineUninterruptible power supply (UPS)

Design Reference

• Test Configurations: Refer to Fig. 22 and Fig. 23 in the datasheet for test configurations.
• Typical Application: Refer to Fig. 24 in the datasheet for a typical application circuit.
• EMC Typical Recommended Circuit: Refer to Fig. 25 in the datasheet for EMC recommended circuit (CLASS A).

Notes

• External Capacitors: Electrolytic capacitors are recommended for external capacitors at the input or output of the product. Tantalum capacitors are not recommended.
• Parallel Connection: The products do not support parallel connection of their output for power expansion purpose or hot-plug.
• Lead Length: The lead connecting the power supply module and IGBT driver should be as short as possible.
• Output Filtering Capacitor: Should be as close as possible to the power supply module and IGBT driver.
• Driver Output Power: Must be lower than that of the power supply module.
• Fixing with Glue: Consider fixing with glue near the module if being used in vibration occasion.
• Maximum Capacitive Load: Tested at nominal input voltage and full load.
• Testing Conditions: Unless otherwise specified, parameters were measured under the conditions of Ta=25℃, humidity<75%RH with nominal input voltage and rated output load.
• Testing Methods: All index testing methods are based on company corporate standards.
• Non-Standard Models: Some indicators of non-standard models may exceed the above requirements. For details, contact the manufacturer's technical staff.
• Environmental Laws and Regulations: Products are classified according to ISO14001 and related environmental laws and regulations.