DLP9500: DLP9500: Capable of withstanding over 3mJ/cm^2

Hello Jywei,

At 3 mJ per 5 ns pulse that is an average of 600 kW/pulse.  At 2 kHz that is 6 W over 1 cm² is 6 W/cm².

In the visible range power is thermally limited according to the data sheet, so you will need to provide a thermal solution (heat sink - active or passive) that will provide sufficient heat removal to keep the active array temperature nominally between 25 C - 45 C.  There is a note for up to a max of 65 C using the Derating curve (Fig 7-1) in the data sheet.

There is a thermal resistance value in the data sheet from the active array to test point 1 (TP1) to use for thermal calculations described in section 8.6 Micromirror Array Temperature Calculation.  

Start with a lower pulse energy and take measurements until you figure out how much heat needs to be removed and extrapolate to at lease 3mJ/pulse @ 2 kHz.  Then design a heat sink to interface to the thermal area on the back of the DMD (see section 7.10 Systems Mounting Interface Loads).  Also please note the mechanical load allowed on the thermal interface area.

Fizix