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AAT3159 Datasheet(PDF) 4 Page - Advanced Analogic Technologies

Part No. AAT3159
Description  High Efficiency 1X/1.5X/2X Charge Pump for White LED Applications
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Maker  ANALOGICTECH [Advanced Analogic Technologies]
Homepage  http://www.analogictech.com
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AAT3159 Datasheet(HTML) 4 Page - Advanced Analogic Technologies

 
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AAT3159
High Efficiency 1X/1.5X/2X Charge Pump for White LED Applications
ChargePumpTM
PRODUCT DATASHEET
4
3159.2007.10.1.0
www .analogictech.com
AAT3159
High Efficiency 1X/1.5X/2X Charge Pump for White LED Applications
ChargePumpTM
PRODUCT DATASHEET
4
3159.2007.10.1.0
www .analogictech.com
Electrical Characteristics1
VIN = 3.6V; CIN = COUT = C1 = C2 = 1.0μF; TA = -40°C to +85°C, unless otherwise noted. Typical values are
TA = 25°C.
Symbol
Description
Conditions
Min
Typ
Max Units
Input Power Supply
VIN
Input Supply Voltage Range
2.7
5.5
V
ICC
Operating Input Current
1X Mode, 3.0 ≤ VIN ≤ 5.5, Active, No Load Current
0.3
1
mA
1.5X Mode, 3.0 ≤ VIN ≤ 5.5, Active, No Load Current
13
2X Mode, 3.0 ≤ VIN ≤ 5.5, Active, No Load Current
1
50μA Setting, 1X Mode
50
μA
ISHDN
Shutdown Current
EN/SET = 0
1
μA
IDX
DX Pin Current
TA= -40°C to +85°C, RSET = 26.1kΩ, Data = 1
(100%)
18
20
22
mA
I(D-Match)
Current Matching2
VF:D1:D4 = 3.6V
0.5
1
%
VTH
1X to 1.5X or 1.5X to 2X Tran-
sition Threshold at Any DX Pin
150
mV
ISET
Current Set Ratio
ISINK/IRSET
870
A/A
VSET
SET Pin Voltage
0.6
V
Charge Pump Section
TSS
Soft-Start Time
100
μs
FCLK
Clock Frequency
1000
kHz
EN/SET Logic Control
VIL(EN/SET)
Enable Logic Low Threshold
VIN = 2.7V
0.4
V
VIH(EN/SET)
Enable Logic High Threshold
VIN = 5.5V
1.4
V
TEN/SET LO
EN/SET Low Time
0.3
75
μs
TEN/SET HI MIN Minimum EN/SET High Time
50
ns
TEN/SET HI MAX Maximum EN/SET High Time
75
μs
TOFF
EN/SET Off Timeout
500
μs
TLAT
EN/SET Latch Timeout
500
μs
IEN/SET
EN/SET Input Leakage
-1
1
μA
1. The AAT3159 is guaranteed to meet performance specifications over the -40°C to +85°C operating temperature range and is assured by design, characterization, and correla-
tion with statistical process controls.
2. Current matching is defined as the deviation of any sink current from the average of all active channels.


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