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AAT3167 Datasheet(PDF) 4 Page - Advanced Analog Technology, Inc.

Part No. AAT3167
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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AAT3167 Datasheet(HTML) 4 Page - Advanced Analog Technology, Inc.

 
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Electrical Characteristics1
CIN = COUT = C1 = C2 = 1.0µF; TA = -40°C to +85°C, unless otherwise noted. Typical values are TA = 25°C,
VIN = 3.6V.
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 Current, High Current Mode
0.3
1.5X Mode, 3.0
≤ VIN ≤ 5.5, Active,
ICC
Operating Current
No Load Current, High Current Mode
1mA
2X Mode, 3.0
≤ VIN ≤ 5.5, Active,
No Load Current, High Current Mode
1
1X Mode, 3.0
≤ VIN ≤ 5.5, D5 Active,
IDS = 100µA, Low Current Mode
50
µA
ISHDN
Shutdown Current
VEN/SET = 0V
1
µA
IDX
High Current Accuracy
ISET = 18mA, TA = 25°C
-10
10
%
Low Current Accuracy
ISET = 400µA, TA = 25°C
15
%
I(D-Match)
Current Matching2
VF:D1:D5 = 3.6V
0.5
1
%
VTH
1X to 1.5X or 1.5X to 2X Transition
150
mV
Threshold at Any ISINK Pin
Charge Pump Section
TSS
Soft-Start Time
100
µs
FCLK
Clock Frequency
1000
kHz
EN/SET
VEN(L)
Enable Threshold Low
VIN = 2.7V
0.4
V
VEN(H)
Enable Threshold High
VIN = 5.5V
1.4
V
TEN/SET LO
EN/SET Low Time
0.3
75
µs
TEN/SET HI
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
AAT3167
High Efficiency 1X/1.5X/2X Charge
Pump for White LED Applications
4
3167.2007.03.1.4
1. The AAT3167 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 from the average of all active channels.


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