TDK-Lambda PYQ75 75W Single-Output DC-DC Converters

TDK-Lambda PYQ75 75W Single-Output DC-DC Converters are quarter-brick, isolated devices that operate from an ultra-wide input range of 9V_DC to 75V_DC (8:1) with single-output voltages from 12V to 48V. The output voltage can be adjusted between -20% to +15% by using the trim terminal. Output voltage sense lines ensure a stable output voltage even with changing loads. The PYQ75 models feature 90% efficiency, 3000V_AC I/O isolation, and an ambient temperature range of -40°C to +105°C. The units are potted to provide a high resistance to shock and vibration. TDK-Lambda PYQ75 75W Single-Output DC-DC Converters are certified according to the 62368-1 safety standards, and with additional circuits, they are also tested according to the EN 50155 railroad standard for electronic equipment in railroad vehicles.

Features

Quarter-brick footprint
Wide 9V_DC to 75V_DC input range (8:1)
Supports the majority of railway DC input voltages
Potted plastic case

Certified to IEC 62368-1, tested according to EN 50155
High resistance to shock and vibration
3000V_AC I/O isolation
Single output

Applications

Industrial
Test
Communications

Broadcast
Railway

Specifications

Input
- 9V to 75V range
- 100V_DC surge voltage, 100ms maximum
- 8V_DC typical shutdown voltage
- 30ms start-up time
Output
- 12V to 48V range
- ±1% voltage tolerance
- 180kHz to 220kHz switching frequency range
- ±0.2% line/load regulation
- Ripple and noise
  - 150mVp-p for 12V and 15V models
  - 240mVp-p for 24V and 28V models
  - 480mVp-p for the 48V model
- ±0.02%/°C temperature coefficient
- ±15% remote sense

1.56A to 6.25A maximum current range
75W maximum power
8mA or 10mA no-load input current options
90% efficiency at 36/48V_DC
1100µF to 14,000µF maximum load capacitance range
Withstanding voltage for 1 minute
- 3000V_DC input-to-output
- 2100V_DC input-to-case
- 1500V_AC output-to-case
1000pF input-to-output isolation capacitance
-40°C to +105°C operating temperature range
57.9mm x 36.8mm x 12.7mm dimensions
Plastic case material
Aluminum base plate
663,000 hours to 780,000 hours MTBF
3-year warranty

TDK-Lambda PYQ75 75W Single-Output DC-DC Converters

Features

Applications

Specifications

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