Specifications; Control Basics; Power; Table 1. Dc Input Voltage Requirements - Planar EL640.480-AF1 User Manual

Specifications

Control Basics

The EL panel is a matrix structure with column and row electrodes arranged in
an X-Y formation. Light is emitted when an AC voltage of sufficient amplitude
is applied at a row-column intersection. The display operation is based on the
symmetric, line at a time data addressing scheme. Required operating voltages
are provided by an integrated DC/DC converter.
Unless otherwise specified, performance characteristics are guaranteed when
measured at 25°C.

Power

The supply voltages are shown in Table 1. All internal high voltages are
generated from the display supply voltage (V
should be present whenever video input signals or V
minimum and maximum specifications in this manual should be met, without
exception, to ensure the long-term reliability of the display. Planar does not
recommend operation of the display outside these specifications.

Table 1. DC Input Voltage Requirements.

V
L
V
H
I , max
L
I , max
H
Ptyp, 120 Hz
Pmax, 120 Hz
CAUTION: Absolute maximum ratings are those values beyond which
damage to the device may occur.

Table 2. Video Input Requirements.

Description
Video logic high voltage
Video logic low voltage
Video logic input current
CAUTION: There is no overcurrent protection on either the V H or V L inputs
to protect against catastrophic faults. Planar recommends the use of a series
fuse on the 12 volt supply. A general guideline is to rate the fuse at 1.8 to 2
times the display maximum current rating.
AF1 Notes
+5 V ±5%
absolute max 7.0 V
+12 V ±10%
absolute max 15 V
75 mA @ V
L
.7 A @ V
H
4.5 W 3840 'E' characters
8.4 W 50/50 2x2 checkerboard
Min Max Units
3.9 5.0 V
0 0.9 V
±10
– µA
EL640.480-AF1 VGA Operations Manual (020-0349-00A)
). The logic supply voltage (V
H
is applied. The
H
= +5 V
= +12 V
Notes
All input thresholds are CMOS
Video lines have 100 Ω series
resistors
)
L
5