Overview
The TPS61165DRVR, produced by Texas Instruments, is a high-brightness white LED driver designed for general lighting applications. This device is a boost converter that drives LEDs in series, featuring a 40-V rated integrated switch FET. It operates at a fixed 1.2-MHz switching frequency with a 1.2-A switch current limit, enabling the use of high-brightness LEDs. The TPS61165DRVR supports flexible brightness control through either a one-wire digital interface (EasyScale™ protocol) or a pulse-width-modulation (PWM) signal. It also includes built-in soft start and integrated open-LED protection to ensure safe and efficient operation.
Key Specifications
| Parameter | Value |
|---|---|
| Input Voltage Range | 3 V to 18 V |
| Open LED Protection | 38 V |
| Reference Voltage | 200 mV with 2% accuracy |
| Switch FET Current Limit | 1.2 A |
| Switching Frequency | 1.2 MHz |
| Package Types | 6-Pin WSON (DRV), SOT-23 (DBV) |
| Package Dimensions (WSON) | 2 mm x 2 mm x 0.8 mm |
| Operating Temperature Range | -40°C to 85°C |
| Efficiency | Up to 90% |
Key Features
- Flexible one-wire digital and PWM brightness control through the CTRL pin
- Built-in soft start to prevent inrush current
- Integrated open-LED protection to prevent output voltage from exceeding absolute maximum ratings
- High efficiency of up to 90%
- No audible noise generation due to non-bursting LED current control
- Compact 2 mm x 2 mm x 0.8 mm 6-Pin WSON package with thermal pad, and SOT-23 package options
Applications
The TPS61165DRVR is suitable for various general lighting applications, including:
- High-brightness LED lighting systems
- Automotive lighting
- Industrial lighting
- Consumer electronics requiring high-efficiency LED drivers
- Smart backlight control systems
Q & A
- What is the input voltage range of the TPS61165DRVR?
The input voltage range is 3 V to 18 V.
- What is the switching frequency of the TPS61165DRVR?
The switching frequency is 1.2 MHz.
- How is the LED current controlled in the TPS61165DRVR?
The LED current can be controlled using either a one-wire digital interface (EasyScale™ protocol) or a pulse-width-modulation (PWM) signal through the CTRL pin.
- What is the purpose of the integrated open-LED protection in the TPS61165DRVR?
The integrated open-LED protection disables the device to prevent the output from exceeding its absolute maximum voltage ratings during open LED conditions.
- What are the package options available for the TPS61165DRVR?
The device is available in 6-Pin WSON (DRV) and SOT-23 (DBV) packages.
- What is the operating temperature range of the TPS61165DRVR?
The operating temperature range is -40°C to 85°C.
- Does the TPS61165DRVR generate audible noise during operation?
No, the device does not generate audible noise due to its non-bursting LED current control.
- What is the efficiency of the TPS61165DRVR?
The efficiency is up to 90%.
- Is the TPS61165DRVR RoHS compliant?
- What is the reference voltage accuracy of the TPS61165DRVR?
The reference voltage accuracy is 2% at 200 mV.
