PRODUCT DATASHEET AAT3113, AAT3114/14A ChargePump TM High Efficiency 1.5X Fractional Charge Pumps For White LED Applications General Description Features The AAT3113 and AAT3114/14A 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 produce current levels up to 20mA for each output from a 2.7V to 5.5V input. A low external parts count (two 1µF flying capacitors and two small bypass capacitors at VIN and OUT) makes these devices ideally suited for small, battery-powered applications. • • • • AnalogicTech’s Simple Serial Control™ (S2Cwire™) interface is used to enable, disable, and set the LED drive current for 32-level logarithmic scale LED brightness control. AAT3113 and AAT3114/14A devices have a thermal management system for protection 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. A 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 four LED current source outputs, and the AAT3114/14A provides six. The AAT3113 is available in a Pb-free 12-pin TSOPJW package, and the AAT3114/14A is available in a Pb-free 16-pin QFN package. • • • • • • • • • • • • • AAT3113: Four Outputs AAT3114/14A: Six Outputs 20mA Full-Scale Current Simple Serial Control (S2Cwire) Interface ▪ 32-Position Logarithmic Scale with Digital Control 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°C to 85°C 12-Pin TSOPJW Package (AAT3113) 16-Pin QFN Package (AAT3114/14A) Applications • Programmable Current Source • White LED Backlighting Typical Application VIN C1+ VIN C1+ OUT C1C2+ C1 1µF C1 1µF C1C2+ OUT VBATTERY CIN 1µF COUT 1µF AAT3113 VBATTERY C2 1µF CIN 1µF COUT 1µF AAT3114/14A C2- EN/SET EN/SET GND 3113.2008.05.1.10 D1 D2 D3 D4 EN/SET EN/SET GND D4 C2 1µF C2- D3 D2 D1 www.analogictech.com D1 D2 D3 D4 D5 D6 D6 D5 D4 D3 D2 D1 1 PRODUCT DATASHEET AAT3113, AAT3114/14A ChargePump TM High Efficiency 1.5X Fractional Charge Pumps For White LED Applications Pin Descriptions Pin Number AAT3114/14A AAT3113 Symbol 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 7 6 5 N/A N/A 4 3 N/A 2 1 12 11 N/A 10 9 D2 D3 D4 D5 D6 C1+ C1NC OUT C2+ C2GND NC VIN EN/SET 16 8 D1 EP Function Current source output 2. If not used, leave pin floating. Current source output 3. If not used, leave pin floating. Current source output 4. If not used, leave pin floating. Current source output 5. If not used, leave pin floating. Current source output 6. If not used, leave pin floating. Flying capacitor 1 positive terminal. Flying capacitor 1 negative terminal. No connect. Charge pump output. Requires 1µF bypass capacitor to ground. Flying capacitor 2 positive terminal. Flying capacitor 2 negative terminal. Ground. No connect. Input power supply. Requires 1µF bypass capacitor to ground. Control pin using S2Cwire serial interface. Current source output 1. Required reference current source. Do not leave pin floating. Exposed paddle (bottom); connect to GND directly beneath package. Pin Configuration TSOPJW-12 (Top View) AAT3113 9 5 8 6 7 D2 1 12 GND D3 2 11 C2- D4 3 10 C2+ D5 4 9 OUT 8 NC C1- C1+ D6 www.analogictech.com 7 6 5 2 13 4 14 10 NC VIN 3 C2GND VIN EN/SET D1 D2 15 11 EN/SET 12 2 16 1 D1 C2+ OUT C1C1+ D4 D3 QFN44-16 (Top View) AAT3114/14A 3113.2008.05.1.10 PRODUCT DATASHEET AAT3113, AAT3114/14A ChargePump TM High Efficiency 1.5X Fractional Charge Pumps For White LED Applications Part Number Descriptions Part Number VIN Range Number of LED Outputs, 20mA Full-Scale LED Present Detect Current AAT3113ITP AAT3114ISN AAT3114AISN 3.0V ≤ VIN ≤ 5.5V 4 3.2V ≤ VIN ≤ 5.5V 6 2µA 2µA 150µA Package TSOPJW-12 QFN44-16 Absolute Maximum Ratings TA = 25°C, unless otherwise noted. Symbol VIN VOUT VEN/SET VEN/SET(MAX) IOUT θJA TJ 3113.2008.05.1.10 Description Input Voltage Charge Pump Output EN/SET to GND Voltage Maximum EN/SET to Input Voltage Maximum DC Output Current (sum of IOUT and D currents) Thermal Resistance Operating Junction Temperature Range www.analogictech.com Value Units -0.3 to 6 -0.3 to 6 -0.3 to 6 0.3 150 37 -40 to 150 V V V V mA °C/W °C 3 PRODUCT DATASHEET AAT3113, AAT3114/14A ChargePump TM High Efficiency 1.5X Fractional Charge Pumps For White LED Applications Electrical Characteristics VIN = 3.5V, TA = -40°C to +85°C, unless otherwise noted. Typical values are at TA = 25°C. Symbol Description Input Power Supply Operation Range VIN ICC Operating Current ISHDN Shutdown Current IDX Output Current Output Current Line Regulation Current Matching Between I(D-Match) Any Two Outputs η Efficiency Charge Pump tSS Soft-Start Time FCLK Clock Frequency EN/SET VEN(L) Enable Threshold Low VEN(H) Enable Threshold High tLO EN/SET Low Time tHI Minimum EN/SET High Time tOFF EN/SET Off Timeout Input EN/SET Input Leakage Current ∆ID/∆VIN 4 Conditions Min Typ Max Units 1 5.5 2 1 V mA µA 20 22 mA 2 %/V 2.7 Active, No Load Current EN = 0 AAT3113: 3.0V ≤ VIN ≤ 5.5V AAT3114/14A: 3.2V ≤ VIN ≤ 5.5V TA = 25°C, All Outputs Max Current 3.0V ≤ VIN ≤ 5.5V 18 -2 VD1:Dn = 3.6V, VIN = 3.3V 0.3 % VIN = 3.5V, IOUT(total) = 40mA 93 % 300 VIN = 2.7V to 5.5V VIN = 2.7V to 5.5V 400 600 0.5 1.4 0.3 www.analogictech.com -1 µs kHz 500 V V µs ns µs 1 µA 75 50 300 VIN = 5.5V 900 3113.2008.05.1.10 PRODUCT DATASHEET AAT3113, AAT3114/14A ChargePump High Efficiency 1.5X Fractional Charge Pumps For White LED Applications TM Typical Characteristics VIN = 3.5V, CIN = COUT = C1 = C2 = 1µF; TA = 25°C, unless otherwise noted. Efficiency vs. Supply Voltage Quiescent Current vs. Temperature 100 1.00 Efficiency (%) 0.98 0.96 IQ (mA) 30mA 95 0.94 0.92 0.90 90 85 75 65 60 0 20 40 60 80 120mA 70 0.86 -20 40mA 80 0.88 -40 3.0 100 3.2 3.4 60mA 3.6 3.8 4.0 4.2 4.4 Efficiency vs. Load Current Quiescent Current vs. Supply Voltage 96 1.2 94 Efficiency (%) 1.1 1.0 IQ (mA) 80mA Supply Voltage (V) Temperature (°C) 0.9 0.8 92 90 88 86 84 82 0.7 80 0.6 3.0 3.5 4.0 4.5 5.0 0 5.5 20 40 60 80 100 120 Load Current (mA) Supply Voltage (V) Shutdown Current vs. Temperature Oscillator Frequency vs. Temperature 1.000 710 700 690 0.100 FOSC (kHz) Shutdown Current (µA) 20mA 0.010 680 670 660 650 640 630 0.001 -40 620 -20 0 20 40 Temperature (°C) 60 80 100 610 -40 -20 0 20 40 60 80 100 Temperature (°C) 3113.2008.05.1.10 www.analogictech.com 5 PRODUCT DATASHEET AAT3113, AAT3114/14A ChargePump High Efficiency 1.5X Fractional Charge Pumps For White LED Applications TM Typical Characteristics VIN = 3.5V, CIN = COUT = C1 = C2 = 1µF; TA = 25°C, unless otherwise noted. Normalized I DIODE vs. Temperature IDIODE Response (-31dB to 0dB) 1.02 1.01 IDIODE 1.00 ENSET (2V/div) 0.99 0dB 0.98 0.97 0.96 IDIODE 0.95 -40 -20 0 20 40 60 80 -31dB 100 Temperature (°C) Time (10µs/div) IDIODE vs. VIN IDIODE Response (-9dB to -10dB) 140 IDIODE (mA) 120 ENSET (2V/div) 100 80 60 0dB 40 -10dB IDIODE 20 0 3.0 3.5 4.0 -9dB 4.5 -31dB VIN (V) Time (10µs/div) VIH and VIL vs. VIN 140 1.000 120 0.975 0.950 VIH and VIL (V) IDIODE (mA) IDIODE vs. VDIODE 100 80 60 40 VIH 0.875 0.850 0.825 VIL 0.800 0.775 20 0 0.750 3.0 3.2 3.4 3.6 3.8 4.0 V DIODE (V) 6 0.925 0.900 2.5 3.0 3.5 4.0 4.5 5.0 5.5 VIN (V) www.analogictech.com 3113.2008.05.1.10 PRODUCT DATASHEET AAT3113, AAT3114/14A ChargePump TM High Efficiency 1.5X Fractional Charge Pumps For White LED Applications Typical Characteristics VIN = 3.5V, CIN = COUT = C1 = C2 = 1µF; TA = 25°C, unless otherwise noted. Turn-On Turn-Off ENSET (2V/div) ENSET (2V/div) OUT (5V/div) OUT (5V/div) VDIODE (5V/div) VDIODE (2V/div) IIN (50mA/div) IIN (50mA/div) Time (100µs/div) Time (200µs/div) 40mA Load Characteristics 60mA Load Characteristics IN OUT 20mV/div OUT 10mV/div IN VDIODE VDIODE Time (1µs/div) Time (1µs/div) 80mA Load Characteristics IN OUT VDIODE VDIODE Time (1µs/div) 3113.2008.05.1.10 20mV/div IN 20mV/div OUT 120mA Load Characteristics Time (1µs/div) www.analogictech.com 7 PRODUCT DATASHEET AAT3113, AAT3114/14A ChargePump TM High Efficiency 1.5X Fractional Charge Pumps For White LED Applications Functional Block Diagram VIN Soft Start 1.5X Charge Pump 600kHz Oscillator Voltage Reference EN/SET 5 S2Cwire Interface 32x8 bit ROM The AAT3113 and AAT3114/14A devices are high efficiency 1.5X fractional charge pumps intended for white LED backlight applications. The fractional charge pump consists of a linear regulator followed by a 1.5X charge pump. The AAT3113 and AAT3114/14A require only four external components: two 1µF ceramic capacitors for the charge pump flying capacitors (C1 and C2), one 1µF ceramic capacitor for CIN, and one 0.33µF to 1µF ceramic capacitor for COUT. The charge pump output is converted into four or six constant current outputs (D1 to D4 or D6) to drive four or six individual LEDs with a maximum of 20mA each. The current source output magnitude is controlled by the EN/SET serial data S2Cwire interface. The interface records rising edges of 8 C2+ C2OUT 8 GND Functional Description C1+ C1- Current Mode DAC D1 D2 D3 D4 D5* D6* * AAT3114/14A only the EN/SET pin and decodes them into 32 individual current level settings each 1dB apart (see Table 1, Current Level Settings). Code 32 is full scale, and Code 1 is full scale attenuated by 31dB. The modulo 32 interface wraps states back to state 1 after the 32nd clock. With each EN/SET pulse, the output current increases by 1dB. To decrease the output current by 1dB, 31 EN/SET clock pulses are required. The counter can be clocked at speeds up to 1MHz, so intermediate states are not visible. The first rising edge of EN/SET enables the IC and initially sets the output LED current to -31dB, the lowest setting equal to 525µA. Once the final clock cycle is input for the desired brightness level, the EN/SET pin is held high to maintain the device output current at the programmed level. The device is disabled 500µs after the EN/SET pin transitions to a logic low state. www.analogictech.com 3113.2008.05.1.10 PRODUCT DATASHEET AAT3113, AAT3114/14A ChargePump High Efficiency 1.5X Fractional Charge Pumps For White LED Applications TM Applications Information EN/SET Serial Interface The current source output magnitude is controlled by the EN/SET pin using AnalogicTech’s Simple Serial Control (S2Cwire) interface. The interface records rising edges of the EN/SET pin and decodes them into 32 individual current level settings each 1dB apart. Code 32 is full scale, and Code 1 is full scale attenuated by 31dB. The modulo 32 interface wraps states back to state 1 after the 32nd clock, so 1dB of attenuation is achieved by clocking the EN/SET pin 31 times (see graph titled, “IDIODE Response -9dB to -10dB”). The counter can be clocked at speeds up to 1MHz, so intermediate states are not visible. The first rising edge of EN/SET enables the IC and initially sets the output LED current to -31dB, the lowest setting equal to 525µA. Once the final clock cycle is input for the desired brightness level, the EN/SET pin is held high to maintain the device output current at the programmed level. The device is disabled 500µs after the EN/SET pin transitions to a logic low state. Current Level Settings LED current level is set via the serial interface according to a logarithmic scale where each code is 1dB greater than the previous code. In this manner, the LED brightness appears linear with each increasing code. Code 20mA max Code 20mA max 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 0.549 0.627 0.706 0.784 0.863 1.020 1.098 1.255 1.412 1.569 1.804 1.961 2.275 2.510 2.824 3.137 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 3.529 4.000 4.471 5.020 5.647 6.353 7.059 7.922 8.941 10.039 11.216 12.627 14.118 15.843 17.804 20.000 The EN/SET timing is designed to accommodate a wide range of data rates. After the first rising edge of EN/SET, the charge pump is enabled and reaches full capacity after the soft-start time (TSS). During the soft-start time, multiple clock pulses may be entered on the EN/SET pin to set the final output current level with a single burst of clocks. Alternatively, the EN/SET clock pulses may be entered one at a time to gradually increase the LED brightness over any desired time period. A constant current is sourced as long as EN/SET remains in a logic high state. The current source outputs are switched off after EN/SET has remained in a low state for at least the tOFF timeout period (see Figure 2). Table 1: Current Level Settings. Normalized Current to Full Scale 1.0 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0.0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 Code Figure 1: Normalized Current Level Settings. 3113.2008.05.1.10 www.analogictech.com 9 PRODUCT DATASHEET AAT3113, AAT3114/14A ChargePump TM High Efficiency 1.5X Fractional Charge Pumps For White LED Applications tLO tHI tOFF EN/SET Code 2 1 OFF 3 OFF Figure 2: EN/SET Timing Diagram. THI > 50ns ON/1 2 300ns < TLO < 75µs 3 4 5 50ns minimum to enable n (n < =32) 6 OFF Figure 3: Enable / Disable / LED Brightness Level Set Data Input. LED Selection AAT3113 and AAT3114/14A devices are designed to drive white LEDs with forward voltages to 4.2V. Since the D1:D6 output current sources are matched with negligible voltage dependence, the LED brightness will be matched regardless of their forward voltage matching. Charge Pump Efficiency The AAT3113 and AAT3114/14A devices are fractional charge pumps. The efficiency (η) can be simply defined as a linear voltage regulator with an effective output voltage that is equal to one and one half times the input voltage. Efficiency (η) for an ideal 1.5X charge pump can typically be expressed as the output power divided by the input power: η= POUT PIN In addition, with an ideal 1.5X charge pump, the output current may be expressed as 2/3 of the input current. The expression to define the ideal efficiency (η) can be rewritten as: η= POUT VOUT · IOUT V = = OUT PIN VIN · 1.5IOUT 1.5VIN -or- η(%) = 100 ⎛ VOUT ⎞ ⎝ 1.5VIN⎠ For a charge pump with an output of 5V and a nominal input of 3.5V, the theoretical efficiency is 95%. Due to 10 internal switching losses and IC quiescent current consumption, the actual efficiency can be measured at 93%. These figures are in close agreement for output load conditions from 1mA to 100mA. Efficiency will decrease as load current drops below 0.05mA or when the level of VIN approaches VOUT. Refer to the Typical Characteristics section of this datasheet for measured plots of efficiency versus input voltage and output load current for the given charge pump output voltage options. Power Efficiency and Device Evaluation The charge pump efficiency discussion in the previous section only accounts for efficiency of the charge pump section itself. Due to the unique circuit architecture and design of the AAT3113 and AAT3114/14A, it is very difficult to measure efficiency in terms of a percent value comparing input power over output power. Since the device outputs are pure constant current sources, it is difficult to measure the output voltage for a given output (D1 to D6) to derive an output power measurement. For any given application, white LED forward voltage levels can differ, yet the output drive current will be maintained as a constant. This makes quantifying output power a difficult task when taken in the context of comparing to other white LED driver circuit topologies. A better way to quantify total device efficiency is to observe the total input power to the device for a given LED current drive level. The best white LED driver for a given application should be based on trade-offs of size, external components count, reliability, operating range, and total energy usage...not just “% efficiency.” www.analogictech.com 3113.2008.05.1.10 PRODUCT DATASHEET AAT3113, AAT3114/14A ChargePump TM High Efficiency 1.5X Fractional Charge Pumps For White LED Applications tions, size or area, material composition, and ambient temperature. Capacitor ESR is typically measured in milliohms for ceramic capacitors and can range to more than several ohms for tantalum or aluminum electrolytic capacitors. 700 VIN = 3.6V Input Power (mW) 600 500 400 300 Ceramic Capacitor Materials 200 Ceramic capacitors less than 0.1µF are typically made from NPO or C0G materials. NPO and C0G materials generally have tight tolerance and are very stable over temperature. Larger capacitor values are usually composed of X7R, X5R, Z5U, or Y5V dielectric materials. Large ceramic capacitors (i.e., greater than 2.2µF) are often available in low-cost Y5V and Z5U dielectrics, but capacitors greater than 1µF are not typically required for AAT3113 or AAT3114/14A applications. 100 0 0 20 40 60 80 100 120 140 Output (LED) Current (mA) Figure 3: AAT3113/AAT3114 Input Power vs. LED Current Capacitor Selection Careful selection of the four external capacitors CIN, C1, C2, and COUT is important because they will affect turn-on time, output ripple, and transient performance. Optimum performance will be obtained when low equivalent series resistance (ESR) ceramic capacitors are used. In general, low ESR may be defined as less than 100mΩ. A value of 1µF for all four capacitors is a good starting point when choosing capacitors. If the LED current sources are only programmed for minimal current levels, then the capacitor size may be decreased. Capacitor Characteristics Ceramic composition capacitors are highly recommended over all other types of capacitors for use with the AAT3113 and AAT3114/14A products. Ceramic capacitors offer many advantages over their tantalum and aluminum electrolytic counterparts. A ceramic capacitor typically has very low ESR, is lowest cost, has a smaller PCB footprint, and is non-polarized. Low ESR ceramic capacitors help maximize charge pump transient response. Since ceramic capacitors are non-polarized, they are not prone to incorrect connection damage. Equivalent Series Resistance ESR is an important characteristic to consider when selecting a capacitor. ESR is a resistance internal to a capacitor that is caused by the leads, internal connec- 3113.2008.05.1.10 Capacitor area is another contributor to ESR. Capacitors that are physically large will have a lower ESR when compared to an equivalent material smaller capacitor. These larger devices can improve circuit transient response when compared to an equal value capacitor in a smaller package size. Test Current/Channel Disable Each channel of the output is equipped with a test current function. The AAT3113 and AAT3114 use a small (~2µA) current source injected into each output pin to detect the presence of an LED. Unused channels other than channel 1 should be left open and will be automatically diasbled instead of wasting the programmed output current. The test current in the AAT3114A is higher (~150µA) to accommodate LEDs with lower impedance in failure mode. Thermal Protection The AAT3113 and AAT3114/14A have a thermal protection circuit that will shut down the charge pump and current outputs if the die temperature rises above the thermal limit. However, thermal resistance of the QFN package is so low that if, in the case of the AAT3114/14A, all six outputs are shorted to ground at maximum 20mA output level, the die temperature will not rise sufficiently to trip the thermal protection. The thermal protection will only trip if COUT is shorted to ground and the ambient temperature is high. www.analogictech.com 11 PRODUCT DATASHEET AAT3113, AAT3114/14A ChargePump TM High Efficiency 1.5X Fractional Charge Pumps For White LED Applications Driving White LED Display Module Backlights and Individual White LEDs Connected in Parallel The AAT3114/14A D1 to D6 outputs are true constant current sources capable of driving up to 20mA each over the operation input voltage range. Since these outputs are true constant current sources, they may be connected in parallel to drive a single power output. Any combination of outputs (D1 to D6) may be connected in parallel. The maximum total output current is a sum of 12 parallel-connected current sources. This feature is particularly useful to power pre-manufactured display modules that are pre-wired with white LED backlights connected in a parallel circuit configuration. All outputs can be connected in parallel to drive groups of LEDs as well. The internal current source reference circuit bases feedback from current sensed on the D1 output. For best operation, the only requirement for this application is that the output D1 should always be connected to the load circuit. www.analogictech.com 3113.2008.05.1.10 PRODUCT DATASHEET AAT3113, AAT3114/14A ChargePump TM High Efficiency 1.5X Fractional Charge Pumps For White LED Applications Application Circuits VIN C1+ C1 1µF C1C2+ OUT V BATTERY CIN 1µF COUT 1µF AAT3114/14A C2 1µF C2- EN/SET EN/SET GND D1 D2 D3 D4 D5 D6 Display Module D1 R1 D2 R2 D3 R3 D4 D5 R4 R5 D6 R6 Resistor R is optional Figure 4: AAT3114/14A Application Driving a Display Module With Six Parallel-Connected White LEDs. VIN C1+ C1 1µF C1C2+ OUT V BATTERY CIN 1µF COUT 1µF AAT3114/14A C2 1µF C2- EN/SET EN/SET GND D1 D2 D3 D4 D5 D6 Keyboard Backlight Display Backlight D4 D1 D2 D5 D6 D3 Enable Keyboard Backlight Enable Display Backlight Figure 5: AAT3114/14A Dual Backlight Control Circuit. 3113.2008.05.1.10 www.analogictech.com 13 PRODUCT DATASHEET AAT3113, AAT3114/14A ChargePump TM High Efficiency 1.5X Fractional Charge Pumps For White LED Applications Ordering Information Package Marking1 Part Number (Tape and Reel)2 TSOPJW-12 QFN44-16 QFN44-16 HTXYY FGXYY OVXYY AAT3113ITP-20-T1 AAT3114ISN-20-T1 AAT3114AISN-20-T1 All AnalogicTech products are offered in Pb-free packaging. The term “Pb-free” means semiconductor products that are in compliance with current RoHS standards, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. For more information, please visit our website at http://www.analogictech.com/about/quality.aspx. Package Information QFN44-163 2.400 ± 0.050 16 2.400 ± 0.050 1 C0.3 0.650 BSC 4.000 ± 0.050 13 4 9 8 4.000 ± 0.050 Pin 1 Identification 0.330 ± 0.075 0.550 ± 0.020 Pin 1 Dot By Marking 5 2.280 REF Top View 0.214 ± 0.036 0.900 ± 0.100 0.025 ± 0.025 Bottom View Side View All dimensions in millimeters. 1. XYY = assembly and date code. 2. Sample stock is generally held on all part numbers listed in BOLD. 3. The leadless package family, which includes QFN, TQFN, DFN, TDFN and STDFN, has exposed copper (unplated) at the end of the lead terminals due to the manufacturing process. A solder fillet at the exposed copper edge cannot be guaranteed and is not required to ensure a proper bottom solder connection. 14 www.analogictech.com 3113.2008.05.1.10 PRODUCT DATASHEET AAT3113, AAT3114/14A ChargePump TM High Efficiency 1.5X Fractional Charge Pumps For White LED Applications TSOPJW-12 2.85 ± 0.20 2.40 ± 0.10 0.20 + 0.10 - 0.05 0.50 BSC 0.50 BSC 0.50 BSC 0.50 BSC 0.50 BSC 7° NOM 0.055 ± 0.045 0.04 REF 0.15 ± 0.05 + 0.10 1.00 - 0.065 0.9625 ± 0.0375 3.00 ± 0.10 4° ± 4° 0.45 ± 0.15 0.010 2.75 ± 0.25 All dimensions in millimeters. Advanced Analogic Technologies, Inc. 3230 Scott Boulevard, Santa Clara, CA 95054 Phone (408) 737-4600 Fax (408) 737-4611 © Advanced Analogic Technologies, Inc. AnalogicTech cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in an AnalogicTech product. No circuit patent licenses, copyrights, mask work rights, or other intellectual property rights are implied. AnalogicTech reserves the right to make changes to their products or specifications or to discontinue any product or service without notice. Except as provided in AnalogicTech’s terms and conditions of sale, AnalogicTech assumes no liability whatsoever, and AnalogicTech disclaims any express or implied warranty relating to the sale and/or use of AnalogicTech products including liability or warranties relating to fitness for a particular purpose, merchantability, or infringement of any patent, copyright or other intellectual property right. In order to minimize risks associated with the customer’s applications, adequate design and operating safeguards must be provided by the customer to minimize inherent or procedural hazards. Testing and other quality control techniques are utilized to the extent AnalogicTech deems necessary to support this warranty. Specific testing of all parameters of each device is not necessarily performed. AnalogicTech and the AnalogicTech logo are trademarks of Advanced Analogic Technologies Incorporated. All other brand and product names appearing in this document are registered trademarks or trademarks of their respective holders. 3113.2008.05.1.10 www.analogictech.com 15