Overview
The TPS61080DRCR is a high-voltage DC/DC boost converter produced by Texas Instruments. This component is part of the TPS6108x family, which includes highly integrated boost converters designed for a wide range of applications. The TPS61080DRCR specifically features an integrated power switch with a current-limit rating of typically 0.5 A. It is capable of generating adjustable output voltages up to 27 V from input voltages as low as 2.5 V, making it versatile for various power management needs.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Voltage Range | 2.5 - 12 | V |
| Output Voltage Range | Up to 27 | V |
| Switch Current Limit | Typically 0.5 A | A |
| Switching Frequency | 600 kHz or 1.2 MHz | Hz |
| Package Type | 3 × 3-mm QFN | - |
| Efficiency | High efficiency, up to 90% in some configurations | % |
| Protection Features | Pulse-by-pulse overcurrent limiting, short-circuit protection, overvoltage protection | - |
| Soft-Start Capability | Programmable soft-start via SS pin | - |
Key Features
- Highly integrated boost converter with internal power switches and feedback compensation.
- Adjustable output voltage up to 27 V.
- Low-RDS(on) internal switches for high efficiency.
- Configurable switching frequency (600 kHz or 1.2 MHz) for optimal performance.
- Programmable soft-start and adjustable reference voltage via the SS pin.
- Redundant protection circuits including pulse-by-pulse overcurrent limiting, short-circuit protection, and overvoltage protection.
- Isolation switch to prevent leakage voltage under shutdown and control inrush current during startup.
Applications
- Boosting 3.6-V Li-ion battery voltage for portable applications.
- Powering thin-film-transistor (TFT) LCDs, OLED displays, WLED backlights, and camera flashlights.
- Industrial power rails (e.g., 12-V or 24-V from a 3.3-V or 5-V bus).
- Medical, telecom, and consumer electronics requiring boosted voltages.
- Driving multiple series WLEDs in parallel for backlighting larger displays.
Q & A
- What is the input voltage range of the TPS61080DRCR?
The input voltage range is from 2.5 V to 12 V.
- What is the maximum output voltage that the TPS61080DRCR can generate?
The TPS61080DRCR can generate output voltages up to 27 V.
- What are the switching frequency options for the TPS61080DRCR?
The switching frequency can be configured to either 600 kHz or 1.2 MHz.
- What type of protection features does the TPS61080DRCR have?
The TPS61080DRCR includes pulse-by-pulse overcurrent limiting, short-circuit protection, and overvoltage protection.
- How does the TPS61080DRCR handle inrush current during startup?
The TPS61080DRCR uses an isolation switch and soft-start circuitry to control inrush current during startup.
- What is the purpose of the SS pin on the TPS61080DRCR?
The SS pin is used for programmable soft-start and adjusting the reference voltage.
- Can the TPS61080DRCR be used to power WLED backlights?
Yes, the TPS61080DRCR can be used to drive multiple series WLEDs in parallel for backlighting larger displays.
- What are some common applications of the TPS61080DRCR?
Common applications include boosting Li-ion battery voltage, powering TFT LCDs and OLED displays, and generating industrial power rails.
- What is the package type of the TPS61080DRCR?
The TPS61080DRCR comes in a 3 × 3-mm QFN package.
- How efficient is the TPS61080DRCR?
The TPS61080DRCR offers high efficiency, up to 90% in some configurations.
- What happens if a short-circuit condition is detected by the TPS61080DRCR?
If a short-circuit condition is detected, the isolation FET turns off, and the IC will not restart until the EN pin toggles or VIN goes through power-on reset (POR).
