Overview
The Texas Instruments TPS61161DRVT is a highly versatile and efficient White LED driver IC designed for various lighting applications. This device is part of the TPS61161 series and is packaged in a compact 2mm x 2mm WSON package, making it ideal for space-constrained designs. The TPS61161DRVT features digital and PWM brightness control, allowing for flexible and precise LED current management. It is suitable for driving up to 10 LEDs in series and is widely used in backlighting, display panels, and LED signage.
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Part Number | TPS61161DRVT |
| Package Type | WSON (DRV) |
| Number of Pins | 6 |
| Supply Voltage | 2.7 V to 18 V |
| Number of Segments | 10 |
| Minimum Operating Temperature | -40°C |
| Maximum Operating Temperature | +85°C |
| LED Current Per Channel | 20 mA |
| Switching Frequency (Max) | 600 kHz |
| Topology | Boost |
| Vout (Max) | 38 V |
| Vout (Min) | 2.7 V |
| Peak Efficiency | Up to 90% |
| Shutdown Current (Typ) | 1 μA |
| Special Features | EasyScale 1-Wire Interface, Load Disconnect During Shutdown |
Key Features
- Digital and PWM brightness control through the CTRL pin using EasyScale protocol or PWM signal.
- Boost converter with a 40-V rated integrated switch FET.
- Fixed 600-kHz switching frequency to reduce output ripple and improve conversion efficiency.
- Integrated open LED protection to prevent output voltage from exceeding absolute maximum voltage ratings.
- Built-in soft start to prevent inrush current.
- Up to 90% peak efficiency.
- Compact 2mm x 2mm WSON package with thermal pad.
Applications
The TPS61161DRVT is suitable for a variety of applications, including:
- Backlighting for LCD displays.
- Display panels and LED signage.
- General lighting applications requiring high efficiency and precise brightness control.
Q & A
- What is the package type of the TPS61161DRVT?
The TPS61161DRVT is packaged in a 2mm x 2mm WSON package. - What is the input voltage range of the TPS61161DRVT?
The input voltage range is from 2.7 V to 18 V. - How many LEDs can the TPS61161DRVT drive in series?
The TPS61161DRVT can drive up to 10 LEDs in series. - What is the switching frequency of the TPS61161DRVT?
The switching frequency is fixed at 600 kHz. - Does the TPS61161DRVT have integrated open LED protection?
Yes, it features integrated open LED protection. - What is the peak efficiency of the TPS61161DRVT?
The peak efficiency is up to 90%. - How is the brightness of the LEDs controlled in the TPS61161DRVT?
The brightness can be controlled using either a digital interface (EasyScale protocol) or a PWM signal through the CTRL pin. - What is the typical shutdown current of the TPS61161DRVT?
The typical shutdown current is 1 μA. - Is the TPS61161DRVT RoHS compliant?
Yes, the TPS61161DRVT is RoHS compliant. - What is the operating temperature range of the TPS61161DRVT?
The operating temperature range is from -40°C to +85°C.
