LCD Bias Power Reference Design
Description
This reference design delivers a low cost LCD bias power circuit using the boost converter IC TPS61085. The solution provides all four voltages required by the thin film transistor (TFT) LCD display. The TPS61085 boost converter generates the AVDD voltage. Two external charge pump circuits provide the positive VGH and negative VGL bias voltage for the TFT. One external op-amp LM7321MF acts as a high current buffer; it provides the VCOM voltage for the TFT backplane.
Features
- Discrete solution for LCD bias powerLow cost and small sizeA high current buffer is also providedThis circuit has been tested on a reference design board
Applications
- Infusion pump
- Dashboard camera
- Tablet (multimedia)
- Portable POS
- Pachinko machine
- Aircraft cockpit display
- Interconnect/distribution box
- POS card reader
- POS printer
- Mother & neonatal care monitor
- PachiSlot machine
- Processor module
- Motorized electronic wheel chair
- Medical chair & table
- Oxygen concentrator
- Substation automation
- Mobile POS
- Circuit breaker (ACB
- MCCB
- VCB)
- E-reader
- GPS personal navigation device
- MRI
- Smartphone
- Operation tables
- Dental chairs
Product Categories
- Power management
| Download the bill of materials for PMP9770 | Download |
Test Data
Get results faster with test and simulation data that's been verified.
Download the test file for PMP9770| Title | Updated | Type | Size (KB) | |
|---|---|---|---|---|
| PMP9770 Gerber | 13 Jan 2015 | ZIP | 624 | |
| PMP9770 Altium | 13 Jan 2015 | ZIP | 94140 | |
| PMP9770 PCB | 13 Jan 2015 | 521 | ||
| PMP9770 Assembly Drawing | 13 Jan 2015 | 92 | ||
| PMP9770 BOM | 13 Jan 2015 | 120 | ||
| PMP9770 Schematic | 13 Jan 2015 | 27 |