TPS61165 High-Brightness White LEDs Driver - Texas Instruments

TI announced the TPS61165, a high-brightness white LED driver which able to drive up to three 1 watt LEDs in series.  The TPS61165’s input voltage range (3-V to 18-V) makes this chip suitable for single-cell, battery-powered applications. TI also introduced the TPS61160 and TPS61161 converters that  integrate a 0.6-A current switch and support input voltages from 3-V to 18-V. TPS61160 and TPS61161 converters are targeted for battery powered applications with small displays, such as small  LCD display backlighting in smart phones, GPS systems, and portable game players.

TPS61165 High-Brightness White LEDs Driver

Key features of TPS61165 High-Brightness White LEDs Driver:

• Integrated 40-V 1.2-A switching FET

• 38-V Open LED Protection for 10 LEDs

• 3-V to 18-V Input Voltage Range
• 200-mV Reference Voltage (2% Accuracy)

• Flexible 1 Wire Digital and PWM Brightness Control

• Built-in Soft Start
• 1.2-MHz switching frequency
• 32-step single-wire digital dimming or PWM dimming
• 90-percent power efficiency

• 6-pin QFN (2mm x 2mm x 0.8mm) Package with Thermal Pad

LED brightness can be controlled by TPS61165 driver with a digital single-wire interface or pulse width modulating (PWM) signal. The digital interface can program an internal register to set the LED current to one of the 32 logarithmic steps. The converter also comes with built-in protection features, such as open LED protection, soft-start, over-current limit and over-temperature protection.

TPS61165 High-Brightness LEDs Driver - Typical Application

The TPS61165 High-Brightness White LEDs Driver can drive up to 9 inches backlight LEDs display, such as those used in ultra-mobile PCs and  industrial laser diodes, LCD photo frames, industrial and medical lighting.

Suggested resale price (1K unit qty):

• $0.85  for TPS61160 High-Brightness White LEDs Driver
• $1.00 for TPS61161 Converter
• $1.40 for TPS61165 Converter

More info: High-Brightness LEDs Driver - Texas Instruments