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AAT2806 Fiches technique(PDF) 4 Page - Advanced Analogic Technologies

No de pièce AAT2806
Description  Dual High Efficiency Charge Pump for White LED AND Flash Applications
Download  16 Pages
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Fabricant  ANALOGICTECH [Advanced Analogic Technologies]
Site Internet  http://www.analogictech.com
Logo ANALOGICTECH - Advanced Analogic Technologies

AAT2806 Fiches technique(HTML) 4 Page - Advanced Analogic Technologies

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Electrical Characteristics
1
V
IN = 3.6V; CIN = COUT = C1 = C2 = C3 = 1.0µF; TA = -40°C to- 85°C unless otherwise noted.
Typical values are at T
A = 25°C.
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, No Load
0.3
1
Current; EN_FLSH = GND, EN/SET = V
IN
1.5X Mode, 3.0
≤ V
IN ≤ 5.5, Active, No Load
1.0
3.0
Current; EN_FLSH = GND, EN/SET = V
IN
mA
I
CC
Operating Current
2X Mode, 3.0
≤ V
IN ≤ 5.5, Active, No Load
2.0
3.7
Current; EN_FLSH = GND, EN/SET = V
IN
EN_FLSH = GND, 50µA Output Setting,
50
µA
1X Mode
3.0
≤ V
IN ≤ 5.5, No Load Current;
2.0
4.5
mA
EN_FLSH = V
IN, EN/SET = GND
I
SHDN
Shutdown Current
EN_FLSH = EN/SET = 0
1.0
µA
I
DX
Input Current Accuracy
2, 4
I
SET = 20mA and ISET = 4.1mA; TA = 25°C
-10
10
%
I
(D-Match)
Current Matching Between Any
VD1:D4 = 3.6, V
IN = 3.5V
0.5
%
Two Current Sink Inputs
2, 5
R
SINK
Sink Switch Impedance (each)
2
7
3.0V < V
IN < 5V, IOUT = 100mA;
4.32
4.5
4.68
V
OUT_FL
Flash Charge Pump Output
EN_FLSH = V
IN
V
Voltage
3.0V < V
IN < 5V, IOUT = 150mA;
4.3
4.5
4.7
EN_FLSH = V
IN
I
OUT_FL
Maximum Continuous I
OUT
V
IN = 3.6V; VOUT = 4.5V; EN_FLSH = VIN
120
mA
Maximum Pulsed I
OUT
V
IN = 3.6V; VOUT = 4.5V; IPULSED < 500mS
250
T
SS
Soft-Start Time
100
µs
F
CLK
Clock Frequency
1.0
MHz
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
Minimum EN/SET High Time
50
ns
T
OFF
EN/SET Off Timeout
500
µs
T
LAT
EN/SET Latch Timeout
500
µs
I
I
Enable and EN/SET Input
-1.0
1.0
µA
Leakage
AAT2806
Dual High Efficiency Charge Pump
for White LED and Flash Applications
4
2806.2005.07.1.4
1. The AAT2806 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. Specification applies only to the tri-mode charge pump.
3. Specification applies only to the charge pump doubler.
4. Determined by the sum of all active channels
5. Current matching is defined as the deviation of any sink current at I
OUT = 20mA and 2mA.


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