EL5825C - Preliminary
8-Channel TFT-LCD Reference Voltage Generator
Features
General Description
• 8-channel reference outputs
• Accuracy of ±0.1%
• Supply voltage of 5V to 16V
• Digital supply 3.3V to 5V
• Low supply current of 10mA
• Rail-to-rail capability
The EL5825C is designed to produce the reference voltages required
in TFT-LCD applications. Each output is programmed to the required
voltage with 10 bits of resolution. Reference pins determine the high
and low voltages of the output range, which are capable of swinging to
either supply rail. Programming of each output is performed using the
serial interface. A serial out pin enables daisy chaining of multiple
devices.
Applications
A number of the EL5825C can be stacked for applications requiring
more than 8 outputs. The reference inputs can be tied to the rails,
enabling each part to output the full voltage range, or alternatively,
they can be connected to external resistors to split the output range and
enable finer resolutions of the outputs.
• TFT-LCD drive circuits
• Reference voltage generators
The EL5825C has 8 outputs and is available in both the 24-pin TSSOP
and the 24-pin LPP packages. It is specified for operation over the full
-40°C to +85°C temperature range.
Ordering Information
Part No
EL5825CU
EL5825CR
Package
Tape & Reel
Outline #
MDP0046
MDP0044
24-Pin LPP
-
-
24-Pin TSSOP
Connection Diagram
SCLK
SDO
OSC
VSD
NC
SD1
ENA
1
2
24
23
22
21
20
19
18
17
16
15
14
13
OUT A
OUT B
OUT C
OUT D
GND
3
OSC
VSD
1
2
3
4
5
6
7
19 OUTB
18 OUTC
17 OUTD
16 GND
4
5
VS
6
REFH
REFL
GND
NC
VS
REFH
REFL
GND
Thermal Pad
7
OUT E
OUT F
OUT G
OUT H
NC
15 OUTE
14 OUTF
13 OUTG
8
9
10
11
12
BG HOLD
NC
24-Pin LPP Top View
24-Pin TSSOP
Note: All information contained in this data sheet has been carefully checked and is believed to be accurate as of the date of publication; however, this data sheet cannot be a “controlled document”. Current revisions, if any, to these
specifications are maintained at the factory and are available upon your request. We recommend checking the revision level before finalization of your design documentation.
© 2001 Elantec Semiconductor, Inc.
ELANTEC [ ELANTEC SEMICONDUCTOR ]
