AAT3113ISN-20-T1 Datasheet PDF - Advanced Analogic Technologies
| Part Number | AAT3113ISN-20-T1 | |
| Description | High Efficiency 1.5X Fractional Charge Pumps For White LED Applications | |
| Manufacturers | Advanced Analogic Technologies | |
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There is a preview and AAT3113ISN-20-T1 download ( pdf file ) link at the bottom of this page. Total 15 Pages | ||
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AAT3113, AAT3114/14A
High Efficiency 1.5X Fractional Charge
Pumps For White LED Applications
General Description
Features
ChargePump™
The AAT3113 and AAT3114/14A are low noise, con-
• AAT3113: Four Outputs
stant frequency charge pump DC/DC converters
• AAT3114/14A: Six Outputs
that use fractional (1.5X) conversion to increase effi-
• 20mA Full-Scale Current
ciency in white LED applications. The devices can
• Simple Serial Control (S2Cwire) Interface
be used to produce current levels up to 20mA for
— 32-Position Logarithmic Scale with Digital
each output from a 2.7V to 5.5V input. A low exter-
Control
nal parts count (two 1µF flying capacitors and two
• Low Noise Constant Frequency Operation
small bypass capacitors at VIN and OUT) makes
these devices ideally suited for small, battery-pow-
• 33% Less Input Current Than Doubler
Charge Pump
ered applications.
• High Accuracy Brightness Matching
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
• 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)
disconnects the load from VIN and reduces quies-
cent current to less than 1µA. The AAT3113 pro-www.DataSheet4U.com
vides four LED current source outputs, and the
AAT3114/14A provides six. The AAT3113 is avail-
Applications
able in a Pb-free 12-pin TSOPJW package, and the
AAT3114/14A is available in a Pb-free 16-pin QFN
package.
• Programmable Current Source
• White LED Backlighting
Typical Application
VBATTERY
CIN COUT
1μF 1μF
EN/SET
VIN C1+
OUT
C1-
C2+
AAT3114/14A
C2-
EN/SET
GND
D1
D2
D3
D4
D5
D6
C1
1μF
C2
1μF
D6 D5 D4 D3 D2 D1
3113.2006.07.1.9
1
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AAT3113, AAT3114/14A
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.
Quiescent Current vs. Temperature
1.00
0.98
0.96
0.94
0.92
0.90
0.88
0.86
-40 -20 0 20 40 60 80 100
Temperature (°C)
Efficiency vs. Supply Voltage
100
30mA
95
90
85
40mA
80
75
120mA
70
65
60
3.0
3.2
20mA
60mA
80mA
3.4 3.6 3.8 4.0
Supply Voltage (V)
4.2
4.4
Quiescent Current vs. Supply Voltage
1.2
1.1
1.0
0.9
0.8
0.7
0.6
3.0
3.5 4.0
4.5 5.0
Supply Voltage (V)
5.5
Efficiency vs. Load Current
96
94
92
90
88
86
84
82
80
0
20 40 60 80 100 120
Load Current (mA)
Shutdown Current vs. Temperature
1.000
0.100
0.010
0.001
-40
-20
0 20 40 60
Temperature (°C)
80 100
3113.2006.07.1.9
Oscillator Frequency vs. Temperature
710
700
690
680
670
660
650
640
630
620
610
-40 -20 0 20 40 60 80 100
Temperature (°C)
5
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Part DetailsOn this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for AAT3113ISN-20-T1 electronic component. |
| Information | Total 15 Pages | |
| Link URL | [ Copy URL to Clipboard ] | |
| Download | [ AAT3113ISN-20-T1.PDF Datasheet ] | |
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| AAT3113ISN-20-T1 | The function is High Efficiency 1.5X Fractional Charge Pumps For White LED Applications. Advanced Analogic Technologies | |
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