brief introduction:
AnalogicTech has announced the introduction of the AAT3102 and AAT3103 constant frequency, charge pump based current source white light emitting diode (WLED) drivers. Designed for backlighting and low-featured handsets for entry-level low-cost LCDs, the new drives are available in a small 2x2.1-mm package and require only two external components to reduce system cost.
“The entry-level handsets currently targeting fast-growing emerging markets typically offer the most basic lighting features including small monochrome thin film transistor liquid crystal display (TFT® C LCD) screens and minimal accessory lighting,†said Philo Product Line Director Phil. Dewsbury said.
“The new current sources, the AAT3102 and AAT3103, deliver up to 30 mA per channel, helping designers build systems in a cost-effective manner, providing high-readout illumination at low-cost panels while using smaller packages and a minimum number of External components to keep the system cost low."
Both new WLED drivers are current source components designed for use in the grounding of light-emitting diode (LED) negative poles. To ensure a higher-cost, more opaque LCD panel with high-readable illumination, the AAT3102 can drive two LEDs, each with a current of up to 30 mA. The AAT3103 can drive up to 3 LEDs with up to 30mA per LED. The charge pumps in both drivers automatically switch between 1X and 2X modes to ensure high efficiency, providing current accuracy above 10% and current matching between channels exceeding 3%. The LEDs can be programmed with a traditional PWM-compatible interface at frequencies up to 50 kHz and can be programmed using Analogic's proprietary single-wire simple serial control (S2Cwire) interface. By using the S2Cwire interface, the designer can adjust the drive current of each WLED in 16 or 8 steps. To keep the solution small and low price, the new driver requires only two external components: a 1 μF capacitor for the charge pump and an external resistor to set the full-scale LED current.
The AAT3102 and AAT3103 also offer a low shutdown current that disconnects the load from IN and reduces the quiescent current to less than 1 μA. Automatic soft start and temperature and short circuit protection are also built in. The AAT3102 and AAT3103 are rated for operation from -40 to +85°C in a compact 2 x 2.1-mm SC70JW-10 package. The AAT3102 is priced at $0.52 each in 1,000-piece quantities. The AAT3103 is priced at $0.52 each in 1,000-piece quantities.
AnalogicTech has announced the introduction of the AAT3102 and AAT3103 constant frequency, charge pump based current source white light emitting diode (WLED) drivers. Designed for backlighting and low-featured handsets for entry-level low-cost LCDs, the new drives are available in a small 2x2.1-mm package and require only two external components to reduce system cost.
“The entry-level handsets currently targeting fast-growing emerging markets typically offer the most basic lighting features including small monochrome thin film transistor liquid crystal display (TFT® C LCD) screens and minimal accessory lighting,†said Philo Product Line Director Phil. Dewsbury said.
“The new current sources, the AAT3102 and AAT3103, deliver up to 30 mA per channel, helping designers build systems in a cost-effective manner, providing high-readout illumination at low-cost panels while using smaller packages and a minimum number of External components to keep the system cost low."
Both new WLED drivers are current source components designed for use in the grounding of light-emitting diode (LED) negative poles. To ensure a higher-cost, more opaque LCD panel with high-readable illumination, the AAT3102 can drive two LEDs, each with a current of up to 30 mA. The AAT3103 can drive up to 3 LEDs with up to 30mA per LED. The charge pumps in both drivers automatically switch between 1X and 2X modes to ensure high efficiency, providing current accuracy above 10% and current matching between channels exceeding 3%. The LEDs can be programmed with a traditional PWM-compatible interface at frequencies up to 50 kHz and can be programmed using Analogic's proprietary single-wire simple serial control (S2Cwire) interface. By using the S2Cwire interface, the designer can adjust the drive current of each WLED in 16 or 8 steps. To keep the solution small and low price, the new driver requires only two external components: a 1 μF capacitor for the charge pump and an external resistor to set the full-scale LED current.
The AAT3102 and AAT3103 also offer a low shutdown current that disconnects the load from IN and reduces the quiescent current to less than 1 μA. Automatic soft start and temperature and short circuit protection are also built in. The AAT3102 and AAT3103 are rated for operation from -40 to +85°C in a compact 2 x 2.1-mm SC70JW-10 package. The AAT3102 is priced at $0.52 each in 1,000-piece quantities. The AAT3103 is priced at $0.52 each in 1,000-piece quantities.
Fuse Holder,Car Fuse Holder,Maxi Fuse Holder ,Fuse Tap
Dongguan Andu Electronic Co., Ltd. , https://www.idoconnector.com