PCA8538UG(2014) View Datasheet(PDF) - NXP Semiconductors.

Part Name

Description

MFG CO.

PCA8538UG
(Rev.:2014)

Automotive 102 x 9 Chip-On-Glass LCD segment driver

NXP Semiconductors. 

NXP Semiconductors

PCA8538

Automotive 102 x 9 Chip-On-Glass LCD segment driver

67$57

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(1) If previously enabled.

Fig 10. Recommended power-down sequence when using an external supplied VLCD and

an external clock signal

Remarks:

1. It is necessary to run the power-down sequence before removing the supplies.

Depending on the application, care must be taken that no other signals are present at

the chip input or output pins when removing the supplies (refer to Section 10 on

page 70). Otherwise this may cause unwanted display artifacts. Uncontrolled removal

of supply voltages will not damage the PCA8538.

2. Static voltages across the liquid crystal display can build up when the external LCD

supply voltage (VLCD) is on while the IC supply voltage (VDD1 to VDD3) is off, or the

other way round. This may cause unwanted display artifacts. To avoid such artifacts,

external VLCD, VDD1 to VDD3 must be applied or removed together.

3. A clock signal must always be supplied to the device when the device is active.

Removing the clock may freeze the LCD in a DC state, which is not suitable for the

liquid crystal. It is recommended to disable the display first and to remove the clock

signal afterwards.

PCA8538

Product data sheet

All information provided in this document is subject to legal disclaimers.

Rev. 4 — 26 September 2014

© NXP Semiconductors N.V. 2014. All rights reserved.

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