A708 ADDtek Corp, A708 Datasheet
A708
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A708 Summary of contents
Page 1
... DESCRIPTION The A708 channels 20mA 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 ...
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... A708 VDDI Control Driving Logic Driving Driving Reference Current 2 (Note) -0.3V to 13.2V -0.3V to 17V -0.3V to 12V O 150 O - 150°C O 260 T =70 °C A Power rating (mW) Power rating (mW) 363 LED1 Stage LED2 Stage LED3 Stage GND DD076_A -- AUGUST 2007 A708 85°C A 295 ...
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... V =150mV LEDn (average)-I (min) LEDn 3 Min Typ Max 2 -40 +85 Min Typ Max Unit 0 0.4 1 -5.0 +5.0 µA -5.0 +5.0 µ ±3 ±3 ±3 300 600 uA 0.1 uA DD076_A -- AUGUST 2007 A708 Unit V mA °C Apply Pin LEDn % % % V DD ...
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... A 0 1,000 10,000 10 4 Output Current vs. Temperature DROP 0 50 100 Temperature ( ℃ ) Max. Allowable V vs. Ambient Temp. Drop V =3. =3. J,MAX I LED,T otal Ambient Temperature (°C) DD076_A -- AUGUST 2007 A708 =3.7V =3.3V =0.2V 150 =125 ℃ =60mA 110 ...
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... LEDs power and the input supplied power, is: × I Efficiency = (V F1 LED1 Where the forward voltage of LED. F Copyright © 2007 ADDtek Corp. APPLICATION INFORMATION VDD Enable × I × LED2 F3 LED3 5 LED1 LED2 LED3 A708 GND × DD076_A -- AUGUST 2007 A708 ...
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... Li-ion Battery Voltage Supply The A708 can work with Li-ion battery. The supply voltage of Li-ion battery ranges from 4.5V down to lower than 3V while the white/blue LED forward voltage (V voltage range and LED forward voltage can be set to fully utilize Li-ion battery energy. For example, if the forward voltage of white LED is 3 ...
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... Surface Mount TSOT- Copyright © 2007 ADDtek Corp. PACKAGE θ θ1 4x θ MILLIMETERS SYMBOLS MIN TYP A --- --- A1 0.00 0.05 A2 0.84 0.87 b 0.35 0.40 C 0.10 0.125 D 2.70 2.90 E 2.60 2.80 E1 1.40 1.60 e --- 0.95 e1 --- 1.90 L 0.30 0.40 L1 0.5 0.6 θ 0° 4° θ1 4° 10° DD076_A -- AUGUST 2007 A708 MAX 1.00 0.10 0.90 0.50 0.15 3.10 3.00 1.80 --- --- 0.60 0.7 8° 12° ...
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... ADDtek assumes to no liability to customer product design or application support. ADDtek warrants the performance of its products to the specifications applicable at the time of sale. ADDtek Corp. 9F, No. 20, Sec. 3, Bade Rd., Taipei, Taiwan, 105 TEL: 2-25700299 FAX: 2-25700196 Copyright © 2007 ADDtek Corp. IMPORTANT NOTICE 8 A708 DD076_A -- AUGUST 2007 ...