Applications • White LED drivers •Smartphones •Tablets • Digital still cameras • Digital video cameras • LED flash lights Features •VIN range: 2.5 to 5.5 V • High efficiency • High accuracy • Common cathode and common anode solutions • Charge pump, synchronous inductive boost, and super capacitor solutions •Comprehensive integrated safety features • Simple GPIO, I2C, AS2Cwire™, or S2Cwire™ control • Small solution size with minimal external components • WLCSP and leaded package options • -40 °C to +85 °C temperature range • Skyworks Green™ packaging LED Camera Flash Drivers Skyworks’ power, lighting, and display product portfolio includes industry-leading, light emitting diode (LED) camera flash driver solutions which enable longer battery life and deliver enhanced picture quality for smartphones, tablets, cameras, and other portable devices. These products are ideal for camera flash applications where low noise, low profile, image quality, system safety, and efficiency are critical. Skyworks offers a broad range of flash drivers from lower current charge, pump-based architectures to high current, synchronous inductive boost solutions to super capacitor-based products to address a wide range of single and dual LED camera flash applications. Skyworks’ products simplify designs, reducing component count, and decreasing overall solution size for original equipment manufacturers (OEMs). Additionally, Skyworks’ flash drivers come with a full complement of built-in safety features ensuring system robustness to multiple fault conditions. Our LED camera flash driver products leverage the extensive design knowledge, technical leadership, manufacturing expertise, and superior quality of Skyworks. The devices use simple GPIO control, industry-standard inter-integrated circuit (I²C) serial digital input, or either Skyworks’ patented Advanced Simple Serial Control™ (AS2Cwire™) single wire serial interface, or Simple Serial Control™ (S²Cwire™) serial digital interface to manage flash events and configure flash driver settings. An application engineering team is available to assist you and with your design efforts. Application notes and block diagrams are accessible on Skyworks’ Web site: www.skyworksinc.com. Please refer to our Web site for Gerber files, which are available for some serial boost camera LED flash driver products. Product Specifications Electrical specification tables for our broad offering of serial boost camera LED flash driver and Charge Pump™ camera LED flash driver products are provided in Tables 1 and 2 below. Table 1. Charge Pump™ Camera LED Flash Drivers Flash IOUT Total (mA) Movie Mode IOUT Total (mA) Typ. IQ (μA) Max. Shutdown Current (μA) LED Channels Min. VIN Max. VIN Package (mm) AAT3175 300 N/A 4 2.7 S²Cwire™ 300 1 TDFN33 12L 3 x 3 x 0.75 AAT3112 500 200 2 85 Enable 26 1 QFN33 16L 3 x 3 x 0.85 AAT3176 500 100 5.5 93 S2Cwire™ 500 1 TDFN 10L 2.2 x 2.2 x 0.75 AAT3176A 500 5.5 5.5 93 S²Cwire™ 500 1 TDFN 10L 2.2 x 2.2 x 0.75 AAT3170 2.7 5.5 4.9 90 AS²Cwire™ 300 1 TDFN33 12L 3 x 3 x 0.75 2 2.7 5.5 4.9 93 AS²Cwire™ 300 1 TDFN33 12L 3 x 3 x 0.75 200 1 2.7 5.5 N/A 92 S²Cwire™ 300 1 TDFN33 12L 3 x 3 x 0.75 800 200 1 2.7 5.5 N/A 92 S²Cwire™ 300 1 TDFN33 12L 3 x 3 x 0.75 AAT3177 800 200 1 2.7 5.5 N/A 91 S2Cwire™ 300 1 TDFN 12L 3 x 3 x 0.75 AAT3177A 800 200 1 2.7 5.5 N/A 91 S²Cwire™ N/A 1 TDFN33 12L 3 x 3 x 0.75 Max. VOUT Peak Efficiency (%) Interface 5.5 N/A 95 2.7 5.0 5.0 1 2.7 5.5 100 1 2.7 600 200 2 AAT3172 600 100 AAT3171 800 AAT3174 Part Number Table 2. Serial Boost Camera LED Flash Drivers Part Number Flash IOUT Total (mA) Movie Mode IOUT Total (mA) Typ. IQ (μA) Max. Shutdown Current (μA) LED Channels Min. VIN Max. VIN Package (mm) AAT1270 1000 137 2 2.7 S²Cwire™ 230 1 STDFN33 14L 3 x 3 x 0.55 AAT1271 1500 206 2 85 AS²Cwire™ 230 1 TDFN33 14L 3 x 3 x 0.75 AAT1272 1500 206 5.5 85 I²C 230 1 TDFN 14L 3 x 3 x 0.75 AAT1274 1500 5.5 5.5 88 AS²Cwire™ 230 1 TDFN33 14L 3 x 3 x 0.75 AAT1277 2.7 5.5 5.5 85 Enable 230 1 WLCSP-18 1 2.7 5.5 5.5 88 AS²Cwire™ 230 1 WLCSP 12 2.235 x 1.535 x 0.63 274 2 2.7 5.5 N/A 80 I²C 570 1 TDFN33 14L 3 x 3 x 0.75 1500 206 1 2.7 5.5 5.5 85 AS²Cwire™ 230 1 TDFN33 14L 3 x 3 x 0.75 SKY81279 1500 143 1 2.7 5.5 5.5 88 AS²Cwire™ 230 1 TDFN23 14L 2 x 3 x 0.75 SKY81290 1500 143 1 2.7 5.5 5.5 88 AS²Cwire™ 230 1 TDFN 14L 3 x 3 x 0.75 TDFN 14L 3 x 2 x 0.75 SKY81292 1800 200 1 2.5 5.5 5.5 90 I²C 75 1 WLCSP 16B 2 x 2 x 0.445 Max. VOUT Peak Efficiency (%) Interface 5.5 5.5 85 2.7 5.5 5.5 2 2.7 5.5 206 1 2.7 1500 100 2 AAT1278 1500 206 AAT1282 2000 AAT1290 Skyworks’ Green™ products are compliant to all applicable materials legislation and are halogen-free. For additional information, please refer to Skyworks Definition of Green™, document number SQ04-0074. New products indicated in blue, bold are continually being introduced at Skyworks. W W W. S K Y W O R K S I N C . C O M 2 Reference Materials Application Notes For additional information, please refer to the following application notes. The S2Cwire™ Serial Digital Interface in Real-time Systems, document number 202737 Join Our Customer Email Program Today Skyworks is continually releasing new products. Join our customer email program instantly by scanning the QR code with your smartphone. AAT1270/AAT1271: Programming LED Current During Flash Operation, document number 202373 Block Diagrams Please visit http://www.skyworksinc.com/BlockDiagrams_ Power_Management.aspx for a complete library of Skyworks’ power management block diagrams. For the latest information, please visit our Web site at www.skyworksinc.com, contact your local sales office, or email us at [email protected]. You can also visit http://www.skyworksinc.com for the full list of Skyworks’ block diagrams representing our broad product portfolio. W W W. S K Y W O R K S I N C . 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