4-CH LCD Bias w/ Fully Int. Pos. Charge Pump, 3.3V LDO Contr., 0.96A Min. Boost Ilim, Fault & VCOM
Product details
Parameters
Package | Pins | Size
Features
- 2.7-V to 5.8-V Input Voltage Range
- 1.6-MHz Fixed Switching Frequency
- 3 Independent Adjustable Outputs
- Boost Converter Output Voltage VO1 of up to 15 V With < 1% Output Voltage Accuracy
- Negative Regulated Charge Pump VO2
- Positive Charge Pump VO3
- Integrated VCOM Buffer
- Virtual Synchronous Converter Technology in Boost Converter
- Auxiliary 3.3-V Linear Regulator Controller
- Internal Soft Start
- Internal Power-On Sequencing
- Fault Detection of all Outputs (TPS65100/05)
- No Fault Detection (TPS65101)
- Thermal Shutdown
- Available in TSSOP-24 and VQFN-24 PowerPAD™ Packages
Description
The TPS6510x series offers a compact and small power supply solution that provides all three voltages required by thin film transistor (TFT) LCD displays. The auxiliary linear regulator controller can be used to generate a 3.3-V logic power rail for systems powered by a 5-V supply rail only.
The main output VO1, is a 1.6-MHz, fixed-frequency PWM boost converter providing the source drive voltage for the LCD display. The device is available in two versions with different internal switch current limits to allow the use of a smaller external inductor when lower output power is required. The TPS65100/01 has a typical switch current limit of 2.3 A, and the TPS65105 has a typical switch current limit of 1.37 A. A fully integrated adjustable charge pump doubler/tripler provides the positive LCD gate drive voltage. An externally adjustable negative charge pump provides the negative gate drive voltage. Due to the high 1.6-MHz switching frequency of the charge pumps, inexpensive and small 220-nF capacitors can be used.
The TPS6510x series has an integrated VCOM buffer to power the LCD backplane. For LCD panels powered by 5 V only, the TPS6510x series has a linear regulator controller using an external transistor to provide a regulated 3.3-V output for the digital circuits. For maximum safety, the TPS65100/05 goes into shutdown as soon as one of the outputs is out of regulation. The device can be enabled again by toggling the input or the enable (EN) pin to GND. The TPS65101 does not enter shutdown when one of the outputs is below its power good threshold.
Technical documentation
| Type | Title | Date | |
|---|---|---|---|
| * | Datasheet | TPS6510x Triple Output LCD Supply With Linear Regulator and VCOM Buffer datasheet (Rev. D) | Aug. 31, 2016 |
| Application note | Understanding Undervoltage Lockout in Power Devices (Rev. A) | Sep. 19, 2018 | |
| Selection guide | Power Management Guide 2018 (Rev. R) | Jun. 25, 2018 | |
| Application note | Basic calculation of an inverting buck-boost power stage (Rev. A) | Aug. 28, 2017 | |
| Application note | How to Estimate the Output Voltage Range of the Charge Pumps in the TPS6510x | Aug. 08, 2017 | |
| Application note | Load Disconnect for the TPS6510x (Rev. A) | Feb. 08, 2017 | |
| Application note | How to Compensate the TPS6510x and the TPS6514x | Aug. 30, 2016 | |
| Application note | Generation of a VCOM buffer input using PWM signal | Dec. 21, 2015 | |
| Application note | Basic Calculation of a Boost Converter's Power Stage (Rev. C) | Jan. 08, 2014 | |
| Application note | Minimizing Ringing at the Switch Node of a Boost Converter | Sep. 15, 2006 | |
| Application note | Customizing your TPS6510x/TPS6514X | Jun. 22, 2004 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Hardware development
Description
Features
The development tool includes:
- A tested TPS65100EVM-030 evaluation module with TPS65100PWP IC
- A user's guide (SLVU101) that contains:
- Schematic
- Bill of materials
- Component placement
- Layout and setup of the EVM
- A datasheet of the TPS6510x device (SLVS496A)
Description
Features
The development tool includes:
- A tested TPS65140EVM-031 evaluation module with TPS65140PWP IC
- A user's guide (SLVU104) that contains:
- Schematic
- Bill of materials
- Component placement
- Layout and setup of the EVM
- A datasheet of the TPS6514x device (SLVS497A)
Design tools & simulation
Features
- Leverages Cadence PSpice Technology
- Preinstalled library with a suite of digital models to enable worst-case timing analysis
- Dynamic updates ensure you have access to most current device models
- Optimized for simulation speed without loss of accuracy
- Supports simultaneous analysis of multiple products
- (...)
Reference designs
CAD/CAE symbols
| Package | Pins | Download |
|---|---|---|
| HTSSOP (PWP) | 24 | View options |
| VQFN (RGE) | 24 | View options |
Ordering & quality
- RoHS
- REACH
- Device marking
- Lead finish/Ball material
- MSL rating/Peak reflow
- MTBF/FIT estimates
- Material content
- Qualification summary
- Ongoing reliability monitoring
Recommended products may have parameters, evaluation modules or reference designs related to this TI product.
Support & training
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