Picor Corporation • www.picorpower.com

QPI-9 Data Sheet Rev. 1.3 Page 1 of 8

QPI-9

QUIETPOWER

®

Features

• >50 dB CM attenuation at 1 MHz

• >70 dB DM attenuation at 1 MHz

• 40 Vdc (max input)

• 100 Vdc surge 100 msec

• 707 V hipot hold off to shield

• 6 A breaker with delay plus 12 A limiter

• 25 x 25 x 4.5 mm SiP (System in Package)

• Low profile LGA package

• -40° to +100°C PCB temperature (See Fig. 5)

• Hot-swap & filter combined saves PCB space

• Efficiency >98%

• Connects between OR’ing diodes & power

conversion input hold-up capacitance

• Patents pending

Applications

• Industrial and Military COTS

Figure 1 – Block Diagram

Figure 2 – Typical Attenuation

Description

The QPI-9 includes the total hot-swap function along

filter is designed to attenuate the conducted

common-mode (CM) and differential-mode (DM) noise

generated by the higher switching frequencies of the

24 Vdc bus. The in-rush current limit and circuit

breaker are designed to deliver over 140 W of power

with an input voltage of 24 V on the converter.

The QPI-9's internal fault timer allows it to operate

safely in the event of a short across its output. The

QPI-9 enters a retry mode where it will attempt to

restart until the short condition is removed. The under

and over voltage thresholds can be trimmed separately

via the UVEN and OV inputs using external series

resistors. The QPI-9 provides two Power Good signals,

PWRGD1 referenced to the input ground and PWRGD2

to the output ground, which can be used to enable

®