WONDOM PS-SP12148 - 500W Power converter for CAR Audio - TL494

This 500 watt boost converter steps up your vehicle's 12 VDC output (11 to 27 VDC max) up to 48 VDC for use with high power amplifier boards. Select 24, 30, 36, 40, or 48 VDC output via four DIP switches located on the board. Precision voltage adjustments are accomplished through the surface mount potentiometer built onto the board.

A Texas Instruments-designed TL494 pulse-width-modulation control IC provides stable, military-grade voltage output, regardless of voltage setting. Additionally, low-voltage and over-voltage input protection is built-in and further protection is provided by two 40A ATC automotive fuses.

This boost converter is different than many car audio electronics and amplifiers. With 12 VDC input power, the boost converter is in an on condition, and is boosting voltage to the preset output.

To turn boost converting off, 12 VDC needs to be applied to the EN input terminal. It is recommended that you wire EN to a SPST switch and then to 12 VDC in the event you need to turn boost converting off. The current consumed by this boost converter is 20 mA when not driving a load.

Note: The manual incorrectly states that the LEDs will illuminate green. The LEDs actually illuminate blue when the boost converter is operating correctly.

Features and Specifications:
• Input voltage: 11 to 27 VDC
• Output voltage: 24, 30, 36, 40, 48 VDC
• Quiescent current: 20 mA
• Low input voltage protection
• High input voltage protection
• Dimensions: 4.80" L x 3.60" W x 1.5" H