A708 Datasheet | ADDtek

DESCRIPTION The A708 is a 3 channels 20m A advanced current regulator for driving LEDs. Only bypass capacitor is required and the noise is very low. The special circuit design provides over 90% efficiency because of the very low dropout voltage. Target end applications are LED backlights for color LCD display, such as mobile phone, smart phone, PDA, notebook, and monitor, etc. - - - - - - - - - ADVANCED 3 CHANNELS 20m A CURRENT REGULATOR FEATURES Fixed 20m A DC constant sink current. Individual current sink circuit for each LED string to prevent short / open circuit on LEDs. TSOT-26 package available. High efficiency. Supply voltage range 2.7V ~ 12V. Output sustaining voltage up to 17V. 0.1u A standby current. 2KV HBM ESD protection. Advanced Bi-CMOS process. APPLICATIONS - TYPICAL APPLICATION CIRCUIT Small Size Color LCD Backlights. Mobile Phone, Smart Phone. LED Backlight for Portable DVD, NB, Monitors, and UMPC. PACKAGE PIN OUT V LED+ - C BP - VDD 1 LED1 LED2 LED3 6 LED1 5 LED2 4 LED3 GND 2 EN 3 V DD C IN Enable EN GND A708 TSOT-26 ORDER INFORMATION TA (°C) -40 ~ 85 Plastic TSOT-26 6-pin A708YFT Note: The letter ”F” is marked for Lead Free process, and letter “T” is marked for Tape & Reel. Copyright © 2007 ADDtek Corp. DD076_A -- AUGUST 2007 .. ABSOLUTE MAXIMUM RATINGS Input Voltage, VDD Output Sustaining Voltage, VLEDn Voltage at all other pins Maximum Junction Temperature, TJ Storage Temperature Range Lead Temperature (soldering, 10 seconds) Note: Exceeding these ratings could cause damage to the device. All voltages are with respect to Ground. Currents are positive into, negative out of the specified terminal. (Note) -0.3V to 13.2V -0.3V to 17V -0.3V to 12V 150OC -40OC to 150°C 260OC POWER DISSIPATION TABLE Package Y TA=70 °C TA= 85°C θJA Derating factor ( m W/°C ) TA≦25°C Power rating (m W) Power rating (m W) Power rating (m W) (°C / W ) TA≧25 OC 220 4.5 568 363 295 Note : Junction Temperature Calculation: TJ = TA...