Specifications
Control Basics
The EL panel is a matrix structure with column and row electrodes arranged in an
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 (VH). The logic supply voltage (VL) should be present whenever video input signals or VH is applied. The minimum and maximum specifications in this manual should be met, without exception, to ensure the
Table 1. DC Input Voltage Requirements.
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VL |
| +5 V ±5% | absolute max 7.0 V |
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VH |
| +12 V ±10% | absolute max 15 V |
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IL, max |
| 75 mA | @ VL = +5 V |
IH, max |
| .7 A | @ VH = +12 V |
Ptyp, 120 Hz |
| 4.5 W | 3840 'E' characters |
Pmax, 120 Hz |
| 8.4 W | 50/50 2x2 checkerboard |
CAUTION: Absolute maximum ratings are those values beyond which damage to the device may occur.
Table 2. Video Input Requirements.
Description | Min | Max | Units | Notes |
Video logic high voltage | 3.9 | 5.0 | V | All input thresholds are CMOS |
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Video logic low voltage | 0 | 0.9 | V | Video lines have 100 Ω series |
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Video logic input current | – | ±10 | µA |
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CAUTION: There is no overcurrent protection on either the VH or VL 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.
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