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TPS65155 Datasheet Preview

TPS65155 Datasheet

LCD Bias Solution

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TPS65155 LCD Bias Solution for LCD Monitors
TPS65155
SLVSEE1 – SEPTEMBER 2017
1 Features
1 3-V to 6-V Input Voltage Range
• Boost Converter With 4-A Switch Current Limit
• Boost Converter Output Voltages up to 18 V
• Boost Converter Overvoltage Protection
• Selectable Switching Frequency (640 kHz or 1.2
MHz)
• Programmable Boost Converter Soft-Start
• Temperature-Compensated Positive Charge
Pump Controller
• Negative Charge Pump Controller
• 4 + 2 Channels of Level Shifters
• XAO Reset Signal
• Thermal Shutdown
• 40-Pin 5×5 mm QFN Package
2 Applications
• LCD Monitors or Notebook Panels
3 Description
The TPS65155 provides an integrated bias and level
shifter solution for LCD monitors .
The device integrates a boost converter to generate
the source driver supply voltage (VAVDD), positive and
negative charge pump controllers to generate gate
driver ON (VGH) and OFF (VGL) voltages, and an 6-
channel level shifter in a single IC. The positive
charge pump controller supports temperature
compensation to reduce VGH at high temperatures.
In addition to the above functions, the TPS65155
generates an additional active-low XAO reset output.
Supply sequencing during power-up can be controlled
by an externally generated enable signal.
To request a full data sheet or other design
resources: request TPS65155
Simplified Block Diagram
VIN
3.3 V
AVDD Boost Converter
AVDD
9 V/300 mA
Positive Charge Pump Controller
With Temperature Compensation
VGHM
24 V/20 mA
Negative Charge Pump Controller
Reset Function
4
4
4 + 2 Channel
2 Level Shifter
2
VGL
-6 V/20 mA
XAO
4-phase level
shifter
STVOUT
RESETOUT
PART NUMBER
TPS65155
Device Information
PACKAGE
BODY SIZE (NOM)
VQFN (40)
5.00mm × 5.00mm
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.




etcTI

TPS65155 Datasheet Preview

TPS65155 Datasheet

LCD Bias Solution

No Preview Available !

TPS65155
SLVSEE1 – SEPTEMBER 2017
4 Device and Documentation Support
www.ti.com
4.1 Receiving Notification of Documentation Updates
To receive notification of documentation updates, navigate to the device product folder on ti.com. In the upper
right corner, click on Alert me to register and receive a weekly digest of any product information that has
changed. For change details, review the revision history included in any revised document.
4.2 Community Resources
The following links connect to TI community resources. Linked contents are provided "AS IS" by the respective
contributors. They do not constitute TI specifications and do not necessarily reflect TI's views; see TI's Terms of
Use.
TI E2E™ Online Community TI's Engineer-to-Engineer (E2E) Community. Created to foster collaboration
among engineers. At e2e.ti.com, you can ask questions, share knowledge, explore ideas and help
solve problems with fellow engineers.
Design Support TI's Design Support Quickly find helpful E2E forums along with design support tools and
contact information for technical support.
4.3 Trademarks
E2E is a trademark of Texas Instruments.
All other trademarks are the property of their respective owners.
4.4 Electrostatic Discharge Caution
This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with
appropriate precautions. Failure to observe proper handling and installation procedures can cause damage.
ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more
susceptible to damage because very small parametric changes could cause the device not to meet its published specifications.
4.5 Glossary
SLYZ022 TI Glossary.
This glossary lists and explains terms, acronyms, and definitions.
5 Mechanical, Packaging, and Orderable Information
The following pages include mechanical, packaging, and orderable information. This information is the most
current data available for the designated devices. This data is subject to change without notice and revision of
this document. For browser-based versions of this data sheet, refer to the left-hand navigation.
2 Submit Documentation Feedback
Product Folder Links: TPS65155
Copyright © 2017, Texas Instruments Incorporated


Part Number TPS65155
Description LCD Bias Solution
Maker etcTI
Total Page 7 Pages
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