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 | Kit Overview
The Texas Instruments TPS61165EVM-283TPS61165EVM-283 facilitates evaluation of the TPS61165TPS61165 High Brightness White LED Driver. With its 40 V rated integrated switch FET, the TPS61165EVM-283TPS61165EVM-283 is a boost converter to driver up to 10 LEDs in series. The boost converter runs at 1.2 Hz fixed switching frequency to reduce output ripple, improve conversion efficiency, and allow for the use of small external components.
The TPS61165EVM-283TPS61165EVM-283 evaluation module contains a TPS61165TPS61165 IC, supporting active and passive components and three white light-emitting diodes (WLEDs) in series. The goal of this EVM is to facilitate evaluation of the TPS61165EVM-283TPS61165EVM-283 in a typical WLED application.
With a 40-V rated integrated switch FET, the TPS61165TPS61165 is a boost converter that drives LEDs in series. The boost converter runs at a 1.2-MHz fixed switching frequency with 1.2-A switch current limit, and allows for the use of a high brightness LED in general lighting.
The default white LED current is set with the external sensor resistor Rset, and the feedback voltage is regulated to 200mV. During the operation, the LED current can be controlled using the 1 wire digital interface (Easyscale protocol) through the CTRL pin. Alternatively, a pulse width modulation (PWM) signal can be applied to the CTRL pin through which the duty cycle determines the feedback reference voltage. In either digital or PWM mode, the TPS61165TPS61165 does not burst the LED current; therefore, it does not generate audible noises on the output capacitor. For maximum protection, the device features integrated open LED protection that disables the TPS61165EVM-283TPS61165EVM-283 to prevent the output from exceeding its absolute maximum voltage ratings during open LED conditions.
Key Applications: High Brightness LED Lighting, White LED Backlighting for Media Form Factor Display | |||||||||||
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Technical Documents
Learning Center
Design Elements
| Type | Description |
|---|---|
| Layout | TI: PS61165EVM (HPA283) Gerber files |
| Reference Design | TI: Reference Design for PMP3598 |
| Application Library | TI: Software Code for Design Tool for Analog Dimming Using a PWM Signal |
| CAD Model | TI: CAD Model for TPS61165 |
Video
Kit Features
Key Featues for TPS61165EVM-283TPS61165EVM-283 Evaluation Module:
- 3 V to 18 V input voltage range
- 38 V Open LED protection for 10 LEDs
- 200 mV reference voltage with 2% accuracy
- 1.2 A switch FET with 1.2 MHz switching frequency
- Flexible Digital and PWM brightness control
- Built-in soft start
Key Features for TPS61165TPS61165 High Brightness White LED Driver:
- 3-V to 18-V Input Voltage Range
- 38-V Open LED Protection
- 200-mV Reference Voltage With 2% Accuracy
- 1.2-A Switch FET With 1.2-MHz Switching Frequency
- Flexible 1 Wire Digital and PWM Brightness Control
- Built-in Soft Start
- Up to 90% Efficiency
Kit Contents
The Texas Instruments TPS61165EVM-283TPS61165EVM-283 Evaluation Module supplied with below contents:
- Evaluation Board
- Documents