Medical, UPS-Ready, ATX Power Supply incorporates battery charger.

Press Release Summary:

Operating from universal 90–264 Vac input with active PFC or 24 Vdc input, TMPC-650U medically approved PC power supply offers total output power of 650 W max; combined output of +3.3 V and +5 V is limited to 150 W. One 24 V or two 12 V lead-acid batteries can be connected for use as interruptible power source without affecting overall max output power. DC voltage outputs and max loads are +3.3 V/24 A, +5 V/24 A, quadruple +12 V/16 A, -12 V/0.5 A, and +5 Vsb/3 A for standby purposes.

Original Press Release:

TRUMPower Launches Medical Grade, UPS-Ready 650W ATX Power Supply with Built-in 24V Battery Charger

Santa Clara, CA — TRUMPower introduces the TMPC-650U, which is a medically approved 650W ATX PC power supply equipped with a built-in 24V battery charger. A single 24V or two 12V lead-acid batteries in series can be connected to the TMPC-650U to be used as an interruptible power source without affecting the overall maximum output power of 650W.  The battery charger in conjunction with a built-in DC to DC converter ensures that all connected equipment will receive a stable supply of power with the correct corresponding voltage in case of a blackout or temporary power loss.

The TMPC-650U comes with DC voltage outputs and maximum loads of +3.3V/24A, +5V/24A, quadruple +12V/16A, -12V/0.5A, and +5Vsb/3A for standby purposes. The maximum total output power is 650W, with the combined output of +3.3V and +5V limited to 150W. The total output current for +12V1, +12V2, +12V3 and +12V4 is 50A maximum. The power supply comes with a standard output cableset, which includes the 24 pin ATX motherboard, PCI-E, 4-pin Molex, and SATA power connectors, etc that is suitable for most PC-related applications. Alternatively, a custom cableset can be ordered as well.

With the earth leakage current being 300µA maximum @ 264 VAC, 63 Hz, the TMPC-650U is approved to the 3rd edition of UL 60601-1, ES60601-1 and CSA 60601-1:2008 medical standards and complies with IEC/EN 60601-1-2 EMC & immunity standards.  The power supply also conforms to EN 55011, FCC and VCCI class B conducted and class A radiated emissions EMC/EMI standards. In addition, the power supply complies with RoHS requirements and IEC/EN 60601-1 3rd edition safety standards. MTBF of the unit at full load is higher than 194,206 hours minimum at 25°C ambient, calculated per Bellcore/Telcordia SR-332.

The power supply has a 90-264 VAC universal input with active PFC, which meets EN 61000-3-2 standards. Alternatively, it can operate at 24V DC input. The TMPC-650U also features a USB 2.0 interface for communication between the power supply and the back-up battery via a power management program running on the PC system.  Additional key attributes include overvoltage and overcurrent protection on all outputs, low ripple and noise, and 0ºC to +70ºC operating temperature with no derating required below +40 ºC.

Units are available from stock to 8 weeks ARO.

For detailed information on the TMPC-650U, please visit or email

TRUMPower has been delivering excellent quality medical and commercial grade AC/DC switching power supplies and DC/DC converters since 1991. The company’s medical grade power supplies range from 5W to 1200W in wall mount, desktop, open frame, and ATX PC form factors. TRUMPower can accommodate to OEM’s needs, whether they are low volume or high volume power supplies, by providing prompt responses and cost-effective power solutions. As a result, it has gained a substantial number of satisfied customers over 20 years and continues to do so.

For more information on the company and its other products, visit or email us at

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