Chapter 4 Technical Description; Power; Power Requirements; Voltage Regulators - Epson S5U13515P00C100 User Manual

For s2d13515 display controller

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Chapter 4 Technical Description

The S5U13515P00C100 evaluation board requires an external regulated power supply (3.3V / 1A). The power is

supplied to the evaluation board through pin 33 of the H4 header, or pin 5 of the P2 header.

The green LED "3.3V Power" is turned on when 3.3V power is applied to the board.

The S5U13515P00C100 evaluation board has an on-board linear regulator to provide the 1.8V power required by

the S2D13515 Display Controller. It also has a step-up switching voltage regulator to generate adjustable 12~25V,

which can be used to power the LED backlight on some LCD panels.

The S2D13515 Display Controller requires 1.8V power and 2.3~2.7V or 3.0~3.6V power.

COREVDD, PLL1VDD, PLL2VDD, and OSCVDD require 1.8V power which is provided by an on-board linear

voltage regulator.

HIOVDD, PIO1VDD, PIO2VDD, CM1VDD, and IOVDD input power may be in the range 2.3V~2.7V or

3.0V~3.6V. When JP7, JP8, JP9, JP12, or JP13 are set to the 2-3 position, the corresponding power input is

connected to 3.3V. If a different voltage is required, set the corresponding jumper to the 1-2 position and connect

the external power supply to the evaluation board as indicated in Table 3-4: "Configuration Jumper Settings," on

page 10.

SDVDD input power may be in the range 2.3V~2.7V or 3.0V~3.6V. On the evaluation board, SDVDD is connected

to 3.3V.

On the evaluation board there is an adjustable 12~25V power supply. At 12V, the maximum current available is

100mA. At 25V, the maximum current available is 60mA. This power supply is intended for use to power the LED

backlight on some LCD panels. The voltage is adjusted by the R175 pot.

Note

For LCD panels that use a CCFL backlight, an external power supply must be used to provide power to the inverter

for the CCFL backlight. Usually, the inverter current consumption is higher than the maximum 100mA current

available from the on-board voltage regulator.

S5U13515P00C100 Evaluation Board User Manual (Rev 1.1)

EPSON

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