 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
AAT3113 Datasheet(PDF) 1 Page - Advanced Analogic Technologies |
|
|
|||||||||||||||||||||||||||||
AAT3113 Datasheet(HTML) 1 Page - Advanced Analogic Technologies |
|
|
1 / 14 page  AAT3113/4 High Efficiency 1.5X Fractional Charge Pumps For White LED Applications Typical Application CIN 1 µF VBATTERY COUT 1 µF EN/SET C1 1 µF C2 1 µF D4 D3 D2 D1 VIN VOUT C1+ C1- C2+ C2- D1 D2 D3 D4 EN/SET GND AAT3114 D5 D6 D5 D6 3113.2004.07.1.4 1 ChargePump™ General Description The AAT3113/4 are low noise, constant frequency charge pump DC/DC converters that use fractional (1.5X) conversion to increase efficiency in White LED applications. The devices can be used to pro- duce current levels up to 20mA for each output from a 2.7V to 5.5V input. Low external parts counts (two 1µF flying capacitors and two small bypass capaci- tors at VIN, and OUT) make the AAT3113/4 ideally suited for small battery-power applications. AnalogicTech™’s Simple Serial Control™ (S2Cwire™) interface is used to enable, disable and set the LED drive current for a 32 level loga- rithmic scale LED brightness control. The AAT3113/4 have a thermal management system to protect the device in the event of a short circuit condition on any of the output pins. Built-in soft- start circuitry prevents excessive inrush current during start-up. High switching frequency enables the use of small external capacitors. A low current shutdown feature disconnects the load from VIN and reduces quiescent current to less than 1µA. The AAT3113 provides 4 LED current source out- puts, and the AAT3114 provides 6. The AAT3113/4 are available in 16-pin quad QFN packages, and the AAT3113 is also available in the 12-pin TSOPJW package. Features • White LED Backlighting • AAT3113 - 4 Outputs • AAT3114 - 6 Outputs • 20mA Full Scale Current • 32 Position Logarithmic Scale with Digital Control • Simple Serial Control™ (S2Cwire™) interface • Low Noise Constant Frequency Operation • 33% Less Input Current Than Doubler Charge Pump • High Accuracy Brightness Matching • Small Application Circuit • Regulated Output Current • Automatic Soft-Start • VIN Range: 2.7V to 5.5V • No Inductors • 600kHz Switching Frequency • Iq < 1µA in Shutdown • Temperature Range -40 to 85°C. • 16-Pin QFN, 12-Pin TSOPJW Package Applications • White LED Backlighting • Programmable Current Source |
Similar Part No. - AAT3113 |
|
Similar Description - AAT3113 |
|
|
|
Link URL |
| Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link to Datasheet | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
| Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
|
Family Site : ic2ic.com |
icmetro.com |
English ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
