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AAT2806 Datasheet(PDF) 4 Page - Advanced Analog Technology, Inc.

Part No. AAT2806
Description  Dual High Efficiency Charge Pump for White LED and Flash Applications
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Maker  AAT [Advanced Analog Technology, Inc.]
Homepage  http://www.aatech.com.tw
Logo AAT - Advanced Analog Technology, Inc.

AAT2806 Datasheet(HTML) 4 Page - Advanced Analog Technology, Inc.

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Electrical Characteristics1
VIN = 3.6V; CIN = COUT = C1 = C2 = C3 = 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
Operation Range
2.7
5.5
V
1X Mode, 3.0
≤ VIN ≤ 5.5, Active, No Load
0.3
1
Current; EN_FLSH = GND, EN/SET = VIN
1.5X Mode, 3.0
≤ VIN ≤ 5.5, Active, No Load
1.0
3.0
Current; EN_FLSH = GND, EN/SET = VIN
mA
ICC
Operating Current
2X Mode, 3.0
≤ VIN ≤ 5.5, Active, No Load
2.0
3.7
Current; EN_FLSH = GND, EN/SET = VIN
EN_FLSH = GND, 50µA Output Setting,
50
µA
1X Mode
3.0
≤ VIN ≤ 5.5, No Load Current;
2.0
4.5
mA
EN_FLSH = VIN, EN/SET = GND
ISHDN
Shutdown Current
EN_FLSH = EN/SET = 0
1.0
µA
IDX
Input Current Accuracy2, 3
ISET = 20mA and ISET = 4.1mA; TA = 25°C
-10
10
%
I(D-Match)
Current Matching Between Any VD1:D4 = 3.6V, VIN = 3.5V
0.5
%
Two Current Sink Inputs2, 4
RSINK
Sink Switch Impedance (each)2
7
Ω
3.0V < VIN < 5V, IOUT = 100mA;
4.32 4.5
4.68
VOUT_FL
Flash Charge Pump Output
EN_FLSH = VIN
V
Voltage5
3.0V < VIN < 5V, IOUT = 150mA;
4.3
4.5
4.7
EN_FLSH = VIN
IOUT_FL
Maximum Continuous IOUT5
VIN = 3.6V; VOUT = 4.5V; EN_FLSH = VIN
120
mA
Maximum Pulsed IOUT5
VIN = 3.6V; VOUT = 4.5V; IPULSED < 500ms
250
TSS
Soft-Start Time
100
µs
FCLK
Clock Frequency
1.0
MHz
VEN(L)
Enable Threshold Low
0.4
V
VEN(H)
Enable Threshold High
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
II
Enable and EN/SET Input
-1.0
1.0
µA
Leakage
AAT2806
Dual High Efficiency Charge Pump
for White LED and Flash Applications
4
2806.2006.04.1.8
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. Determined by the average of all active channels.
4. Current matching is defined as the deviation of any sink current from the average of all active channels.
5. Specification applies only to the charge pump doubler.


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