Overview
The TPS65100PWPR is a compact and highly integrated power management IC designed by Texas Instruments. It is specifically tailored for driving thin film transistor (TFT) LCD displays in various portable devices. This IC provides all three voltages required by TFT LCD displays, including a boost converter output, negative and positive charge pump outputs, and an integrated VCOM buffer. Additionally, it features an auxiliary 3.3-V linear regulator controller for generating a logic power rail in systems powered by a 5-V supply rail only.
Key Specifications
| Parameter | Value |
|---|---|
| Input Voltage Range | 2.7 V to 5.8 V |
| Switching Frequency | 1.6 MHz |
| Output Voltages | VO1: Up to 15 V, VO2: Down to ±12 V, VO3: Up to 30 V, VCOM: Integrated buffer |
| Output Current Limits | VO1: 350 mA, VO2/VO3: 20 mA each |
| Package Type | 24-HTSSOP (Exposed Pad) |
| Operating Temperature Range | -40°C to 85°C |
| Switch Current Limits | TPS65100/01: 2.3 A, TPS65105: 1.37 A |
Key Features
- Precision voltage regulation with < 1% output voltage accuracy for the boost converter output.
- High-efficiency DC-DC conversion with synchronous rectification and virtual synchronous converter technology.
- Three independent adjustable outputs: boost converter, negative charge pump, and positive charge pump.
- Integrated VCOM buffer for powering the LCD backplane.
- Auxiliary 3.3-V linear regulator controller for digital circuits.
- Internal soft start and power-on sequencing.
- Fault detection of all outputs (TPS65100/05) and thermal shutdown protection.
- Programmable soft-start and ramp-up, and overcurrent protection.
- Low noise and EMI performance, and low output impedance for load regulation.
Applications
- TFT LCD displays for notebooks and monitors.
- Portable DVD players and tablet PCs.
- Car navigation systems and industrial displays.
- Digital cameras and handheld gaming consoles.
- Other portable devices requiring dual-output LCD bias voltage generators.
Q & A
- What is the TPS65100PWPR?
The TPS65100PWPR is a dual-output DC-DC converter IC designed by Texas Instruments for applications requiring dual power supplies with positive and negative voltages, such as LCD displays and bias generators.
- How does the TPS65100PWPR work?
The TPS65100PWPR converts an input voltage source into positive and negative output voltages using internal DC-DC switching regulators. It features integrated control circuitry and protection mechanisms for reliable operation.
- What are the key features of the TPS65100PWPR?
Key features include precision voltage regulation, high-efficiency DC-DC conversion, integrated VCOM buffer, auxiliary linear regulator controller, and internal protection mechanisms such as overcurrent protection and thermal shutdown.
- What are the typical applications of the TPS65100PWPR?
Typical applications include TFT LCD displays, portable DVD players, tablet PCs, car navigation systems, and handheld gaming consoles.
- What is the input voltage range of the TPS65100PWPR?
The input voltage range is from 2.7 V to 5.8 V.
- What are the output voltages provided by the TPS65100PWPR?
The IC provides a boost converter output up to 15 V, a negative charge pump output down to ±12 V, a positive charge pump output up to 30 V, and an integrated VCOM buffer.
- What package types are available for the TPS65100PWPR?
The TPS65100PWPR is available in 24-HTSSOP (Exposed Pad) and VQFN-24 PowerPAD™ packages.
- Does the TPS65100PWPR have built-in protection mechanisms?
Yes, it includes fault detection of all outputs, thermal shutdown protection, overcurrent protection, and input under-voltage lockout.
- Are there any equivalent products to the TPS65100PWPR?
Equivalent products include the Maxim Integrated MAX1751, Analog Devices ADP8860, ON Semiconductor NCP1394, and STMicroelectronics LDO-DC/DC converters).
- What is the operating temperature range of the TPS65100PWPR?
The operating temperature range is from -40°C to 85°C).
