Planar EL552.256-Q2 DC/DC Converter Power Supply, Interface Information, Default Jumper Setting

EL552.256-Q2

DC/DC Converter (Power Supply)

The display comes with the PS512-6, which is an efficient multiple-output DC-to- DC switching power supply assembly. The power supply provides the unique voltage requirements for EL displays. Its input voltages are +12V only or both

+12V and +5V. EXT. INT.

A square-pin jumper (J4) is provided to select between these two input configurations and is in the +5V position when the product is shipped.

Default Jumper Setting

The following table shows the input voltage for the PS512-6 power supply for the +12V and the +12V/+5V configurations.

Table 3. Power Supply Input Voltages

+12V and +5V Input

Description	Name	Min.	Max.	Units
Input voltage: nom. = 12.0 V	VH	10.8	13.2	VDC
Input voltage: absolute max.	VH max	---	15.0	VDC
Input current: max.	IH max	---	0.9	A
Input voltage: nom. = 5.0 V	VL	4.75	5.25	VDC
Input voltage: absolute max.	VI max	---	7.5	VDC
Input Current max	IL max	---	0.1	A
+12V Only Input
Description	Name	Min.	Max.	Units
Input voltage: nom. = 12.0 V	VH	10.8	13.2	VDC
Input voltage: absolute max.	VH max	---	15.0	VDC
Input current: max.	IH max	---	1.0	A

Interface Information

This Planar EL display incorporates an interface that is similar to many LCD interfaces. This interface is supported by a variety of off-the shelf chip sets which take care of all display control functionality, freeing the system processor for other tasks. Designers should select the chip set that best suits their particular architecture and price point.

Video Input Signals

The VS signal may be independently set to a CMOS low level at any time for longer than one frame period. During the time of VS inactivity the display is blank. Halting VS results in a standby condition to minimize power usage.

6EL552.256-Q2 Operations Manual (OM410-00)