| Display type | Automotive, LCD unipolar |
| IC integration | LCD bias |
| Vin (Min) (V) | 2.7 |
| Vin (Max) (V) | 5.8 |
| Source driver voltage (Min) (V) | 5 |
| Source driver voltage (Max) (V) | 15 |
| Level shifter/scan driver (ch) | 0 |
| V_POS (Max) (V) | 30 |
| V_NEG (Max) (V) | -2 |
| Topology | Boost |
| Rating | Automotive |
- Qualified for Automotive Applications
- AEC-Q100 Qualified With the Following Results:
- Device Temperature Grade 1
- Device HBM ESD Classification Level H2
- Device CDM ESD Classification Level C5
- Input Voltage Range: 2.7 V to 5.8 V
- VO1 Boost Converter
- Up to 15 V Output Voltage
- Virtual Synchronous Converter Topology
- < 1% Output Voltage Accuracy
- 1.6-MHz Fixed Switching Frequency
- 2.3-A Switch Current Limit
- VO2 Negative Regulated Charge Pump
- Down to -12 V / 20 mA
- VO3 Positive Regulated Charge Pump
- Up to 30 V / 20 mA
- Three Independently Adjustable Outputs
- Auxiliary 3.3-V Linear Regulator Controller
- Internal Soft Start
- Power Good
- Protection Features
- Short-Circuit Detection of all Outputs
- Overvoltage Protection of all Outputs
- Thermal Shutdown
- Available in TSSOP-24 PowerPAD?Package
The TPS65140-Q1 and TPS65145-Q1 devices offer 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 TPS65140-Q1 device has a typical switch current limit of 2.3 A and the TPS65145-Q1 has a typical switch current limit of 1.37 A.
A fully integrated adjustable charge pump doubler and provides the positive LCD gate-drive voltage. An externally adjustable negative charge pump provides the negative LCD gate-drive voltage.
For compensation of the devices please refer to Application Note: How to Compensate with the TPS6510x and TPS6514x SLVA813.
