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AAT3152 Datasheet(PDF) 4 Page - Advanced Analog Technology, Inc.

Part No. AAT3152
Description  High Efficiency 1X/1.5X/2X Charge Pump For White LED Applications
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Maker  AAT [Advanced Analog Technology, Inc.]
Homepage  http://www.aatech.com.tw
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AAT3152 Datasheet(HTML) 4 Page - Advanced Analog Technology, Inc.

 
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Electrical Characteristics
1
C
IN = COUT = C1 = C2 = 1.0µF; TA = -40°C to +85°C, unless otherwise noted.
Typical values are T
A = 25°C, VIN = 3.6V.
Symbol
Description
Conditions
Min
Typ
Max
Units
Input Power Supply
V
IN
Operation Range
2.7
5.5
V
1X Mode, 3.0
≤ V
IN ≤ 5.5, Active,
0.3
1
No Load Current
1.5X Mode, 3.0
≤ V
IN ≤ 5.5, Active,
1
3
mA
I
CC
Operating Current
No Load Current
2X Mode, 3.0
≤ V
IN ≤ 5.5, Active,
1.5
3
No Load Current
50µA Setting, 1X Mode
50
µA
I
SHDN
Shutdown Current
EN/SET = 0
1
µA
I
DX
I
SINK Average Current Accuracy
I
SET = 20mA, TA = 25°C
-10
10
%
I
(D-Match)
Current Matching Between Any
V
F:D1:D4 = 3.6V
0.5
%
Two Current Sink Inputs
2, 3
V
TH
1X to 1.5X or 1.5X to 2X Transition
150
mV
Threshold at Any Current Sink Pin
Charge Pump Section
T
SS
Soft-Start Time
100
µs
F
CLK
Clock Frequency
1000
kHz
EN/SET
V
EN(L)
Enable Threshold Low
0.4
V
V
EN(H)
Enable Threshold High
1.4
V
T
EN/SET LO
EN/SET Low Time
0.3
75
µs
T
EN/SET_HI_MIN
Minimum EN/SET High Time
50
ns
T
EN/SET_HI_MAX
Maximum EN/SET High Time
75
µs
T
OFF
EN/SET Off Timeout
500
µs
T
LAT
EN/SET Latch Timeout
500
µs
I
EN/SET
EN/SET Input Leakage
-1
1
µA
AAT3152
High Efficiency 1X/1.5X/2X Charge Pump
For White LED Applications
4
3152.2005.08.1.2
1. The AAT3152 is guaranteed to meet performance specifications over the -40°C to +85°C operating temperature range and is assured
by design, characterization, and correlation with statistical process controls.
2. Current matching is defined as the deviation of any sink current at I
OUT = 20mA and 2mA.
3. Specification applies only to the tri-mode charge pump.


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