Encore ENPUH-302 Uživatelský manuál stáhnout pdf (Strana 16)

Product Specification

LC370EUN

Ver. 1.0

3-6. Power Sequence

3-6-1. LCD Driving circuit

Table 8. POWER SEQUENCE

10%

90%

10%

LED ON

T3 T4

Interface Signal (Tx_clock)

Power for LED

Power Supply For LCD

LCD

User Control Signal

(LVDS_select, OPC Enable, ExtVBR-B)

Valid Data

100%

Note :

30%

Vcm : LVDS Common mode Voltage

10%

Parameter

Value

Unit Notes

Min Typ Max

T1 0.5 - 20 ms

T2 0 - - ms

T3 200 - - ms

T4 200 - - ms

T5 1.0 - - s

T6 - - T2 ms

T7 0.5 - - s

T8 100 - - ms

90%

1. Even though T1 is over the specified value, there is no problem if I2T spec of fuse is satisfied.

2. If T2 is satisfied with specification after removing LVDS Cable, there is no problem.

3. The T3 / T4 is recommended value, the case when failed to meet a minimum specification,

abnormal display would be shown. There is no reliability problem.

4. T5 should be measured after the Module has been fully discharged between power off and on period.

5. If the on time of signals (Interface signal and user control signals) precedes the on time of Power (V

LCD

it will be happened abnormal display. When T6 is NC status, T6 doesn’t need to be measured.

6. If there is no abnormal display, no problem.

7. It is recommendation specification that T8 has to be 100ms as a minimum value.

※ Please avoid floating state of interface signal at invalid period.

※ When the power supply for LCD (VLCD) is off, be sure to pull down the valid and invalid data to 0V.

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