STVM100DS6F STMicroelectronics, STVM100DS6F Datasheet

IC I2C LCD VCOM CALIBRATR 8TSSOP

STVM100DS6F

Manufacturer Part Number
STVM100DS6F
Description
IC I2C LCD VCOM CALIBRATR 8TSSOP
Manufacturer
STMicroelectronics
Type
Calibratorr
Datasheet

Specifications of STVM100DS6F

Applications
TFT-LCD Panels: VCOM Driver
Mounting Type
Surface Mount
Package / Case
8-TSSOP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
497-9082-2
STVM100DS6F

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
STVM100DS6F
Manufacturer:
ST
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Part Number:
STVM100DS6F
Manufacturer:
ST
Quantity:
20 000
Features
Applications
Table 1.
November 2009
I
7-bit adjustable sink current output
2.25 V to 3.6 V logic supply voltage V
AV
– 4.5 V to 20 V for V
– 4.5 V to 13 V for V
EEPROM for storing the optimum V
Guaranteed monotonic output over operating
range
400 kHz maximum interface bus speed
Operating temperature: –40 °C to 85 °C
Available in an 8-pin 3 mm x 3 mm TDFN8 or
3 mm x 3 mm TSSOP8 package
TFT-LCD panels
STVM100DC6E
STVM100DS6F
2
C interface, slave address: 1001111
Order code
DD
operating voltages
Device summary
Optimum temperature range
DD
DD
from 2.6 V to 3.6 V
from 2.25 V to 3.6 V
–40 °C to 85 °C
–40 °C to 85 °C
COM
DD
setting
Doc ID 13236 Rev 7
Description
The STVM100 is a programmable VCOM adjust-
ment solution for thin-film transistor (TFT) liquid-
crystal displays (LCDs) to remove “flickers”. It can
replace a mechanical potentiometer, so that the
factory operator can physically view the front
screen when performing the VCOM adjustment.
This significantly reduces labor costs, increases
reliability, and enables automation.
STVM100 provides a digital I
trol the sink current output (I
drives an external resistive voltage divider, which
can then be applied to an external V
Three external resistors R
mine the highest and lowest value of the V
An increase in the output sink current will lower
the voltage on the external divider so that the
V
range. Once the desired V
achieved, it can be stored in the internal
EEPROM that will be automatically recalled dur-
ing each power-up.
STVM100 is available in an 8-pin, 3 mm x 3 mm
TDFN8 or 3 mm x 3 mm TSSOP8 package.
COM
Package
TSSOP8
TDFN8
can be adjusted by 128 steps within this
I
TSSOP8 (3 mm x 3 mm) (DS)
TDFN8 (3 mm x 3 mm) (DC)
2
C LCD VCOM calibrator
ECOPACK
ECOPACK
®
®
package, tubes
package, tape and reel
1
COM
, R
Packing
OUT
2
C interface to con-
2
STVM100
, and R
setting is
). This output
COM
SET
buffer.
www.st.com
deter-
COM
1/27
.
1

Related parts for STVM100DS6F

STVM100DS6F Summary of contents

Page 1

... TSSOP8 package Applications ■ TFT-LCD panels Table 1. Device summary Order code Optimum temperature range STVM100DC6E STVM100DS6F November 2009 DD setting COM Description The STVM100 is a programmable VCOM adjust- ment solution for thin-film transistor (TFT) liquid- crystal displays (LCDs) to remove “flickers”. It can ...

Page 2

Contents Contents 1 Device overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

Page 3

STVM100 List of tables Table 1. Device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

Page 4

List of figures List of figures Figure 1. Logic diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

Page 5

STVM100 1 Device overview Figure 1. Logic diagram Table 2. Pin names and functions Name Type OUT Analog AV Supply DD WP Input GND V Supply DD SDA Input/Output I SCL Input SET Analog 1. See SET pin function in ...

Page 6

Device overview Figure 2. Connections diagram Figure 3. Block diagram SDA SCL WP Figure 4. Hardware hookup MCU 6/27 SET OUT SCL 2 7 SDA GND ...

Page 7

STVM100 2 Device operation The STVM100 operates as a slave device on the serial bus. Access is obtained by implementing a start condition, followed by the 7-bit slave address (1001111), and the eighth bit for READ/WRITE identification. The volatile DAC ...

Page 8

Device operation 2.1.4 Data valid The data on the SDA line must be stable during the high period of the clock. The high or low state of the data line can only change when the clock signal on the SCL ...

Page 9

STVM100 2.1.5 Acknowledge Each byte of eight bits is followed by one acknowledge bit. This acknowledge bit is a low level signal put on the bus by the receiver, whereas the master generates an extra acknowledge-related clock pulse (see obliged ...

Page 10

Device operation 2.2 Read mode In READ mode, after the start condition, the master sets the slave address (see Followed by the READ/WRITE mode control bit (R/W=1) and the acknowledge bit, the value in DAC register will be transmitted and ...

Page 11

STVM100 3 Application information The STVM100 is a programmable V provides a digital I external resistive voltage divider, which can then be applied to an external V The highest and lowest V connection is shown in The sink current from ...

Page 12

Application information If the user-selected value is 0 (zero scale), the minimum current is sunk. The maximum V value is obtained in COM Equation 3 If the user-selected value is 127 (full scale), the maximum current is sunk and the ...

Page 13

... These are stress ratings only and operation of the device at these or any other conditions above those indicated in the operating sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. Refer also to the STMicroelectronics SURE Program and other relevant quality documents. Table 4. ...

Page 14

DC and AC parameters 5 DC and AC parameters This section summarizes the operating measurement conditions, and the dc and ac characteristics of the device. The parameters in the DC and AC characteristics tables that follow, are derived from tests ...

Page 15

STVM100 Table 7. DC and AC characteristics Sym Description Supply voltage EEPROM V DD programming supply voltage ( supply current Analog supply voltage DD ( supply current AVDD DD SET SET voltage resolution ...

Page 16

DC and AC parameters Figure 9. Bus timing requirements sequence SDA tBUF SCL P Table 8. AC characteristics Sym Description f SCL clock frequency SCL t Clock low period LOW t Clock high period HIGH t Data setup time SU:DAT ...

Page 17

STVM100 6 Typical operating characteristics Typical operating characteristics for the STVM100 are T OUT = 1/2AV , and R DD Figure 10 Figure 11 ...

Page 18

Typical operating characteristics Figure 12 Figure 13 18/27 supply current vs. temperature -40 -30 -20 - Temperature°C supply current vs. temperature ...

Page 19

STVM100 Figure 14. I OUT Figure 15. Total unadjusted error vs. DAC setting error vs. temperature (STVM100 at middle scale) 0.06 0.05 0.04 0.03 0.02 0.01 0 -40 - Temperature°C 0.022474 0.020395 0.018316 0.016237 0.014158 0.012079 0.01 1 ...

Page 20

Typical operating characteristics Figure 16. Differential non-linearity vs. DAC setting Figure 17. Integral non-linearity vs. DAC setting 20/27 0.2 0.15 0.1 0.05 0 -0.05 -0.1 -0.15 -0 DAC setting (decimal) 0.3 0.2 0.1 0 ...

Page 21

STVM100 Figure 18 Figure 19. Full scale-up response power-up response 5ms/DIV AV : 5V/DIV 5V/DIV 20µs/DIV SCL: 5V/DIV, SDA: 5V/DIV, V Doc ID 13236 Rev 7 Typical operating characteristics : 1V/DIV ...

Page 22

Typical operating characteristics Figure 20. Full scale-down response 22/27 20µs/DIV SCL: 5V/DIV, SDA: 5V/DIV, V OUT Doc ID 13236 Rev 7 STVM100 : 1V/DIV 1V/DIV SET ...

Page 23

STVM100 7 Package mechanical data In order to meet environmental requirements, ST offers these devices in different grades of ® ECOPACK packages, depending on their level of environmental compliance. ECOPACK specifications, grade definitions and product status are available at: www.st.com. ...

Page 24

Package mechanical data Figure 22. TSSOP8 – 8-lead, thin shrink small outline mm, mech. data A CP Note: Drawing is not to scale. Table 10. TSSOP8 – 8-lead, thin shrink small outline, 3mm x 3mm, mech. ...

Page 25

STVM100 8 Part numbering Table 11. Ordering information scheme Example: Device type STVM100, V calibrator with 7-bit DAC and I COM Package DC = TDFN8 DS = TSSOP8 Temperature range 6 = –40 to 85°C Shipping method ® ...

Page 26

Revision history 9 Revision history Table 12. Document revision history Date 09-May-2006 14-Jul-2006 08-Nov-2006 12-Feb-2007 20-Apr-2007 24-Jul-2007 04-Nov-2009 26/27 Revision 1 Initial release. 2 Graphical and textual updates Document status upgraded to Preliminary Data; changed the wording of Input function ...

Page 27

... STVM100 Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale. ...

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