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AAT1500 Fiches technique(PDF) 3 Page - List of Unclassifed Manufacturers

No de pièce AAT1500
Description  CONSTANT CURRENT BOOST CONVERTER FOR 1 TO 4 WHITE LEDS
Download  11 Pages
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Fabricant  ETC1 [List of Unclassifed Manufacturers]
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AAT1500 Fiches technique(HTML) 3 Page - List of Unclassifed Manufacturers

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Advanced Analog Technology, Inc.
Advanced Analog Technology, Inc
.
Page 3 of 11
V 0.2
AAT1500
Electrical Characteristics, VDD = 3.6 V, TC = 25 oC (Unless Otherwise Specified)
Operating Condition
PARAMETER
SYMBOL TEST CONDITION
MIN TYP MAX UNIT
Supply Voltage
DD
V
2.6
6.0
V
Under Voltage Lockout
UVLO
V
1.8
2.2
2.3
V
Operating Current
DD
I
DD
V = 5.5V, Switch On
2
mA
Quiescent Current
Q
I
DD
V = 5.5V
FB
V = 1.3V, Switch Off
250
500
µA
Shutdown Current
SD
I
DD
V = 5.5V,
EN
V < 0.4V
0.1
1
µA
Oscillator
PARAMETER
SYMBOL TEST CONDITION
MIN TYP MAX UNIT
Operating Frequency
OSC
f
0.8
1.0
1.2
MHz
Maximum Duty Cycle
MAX
D
79
85
92
%
Reference Voltage
PARAMETER
SYMBOL TEST CONDITION
MIN TYP MAX UNIT
Feedback Voltage
IE
V
Note 2
0.237 0.250 0.263
V
N-Channel Switch
PARAMETER
SYMBOL TEST CONDITION
MIN TYP MAX UNIT
Current Limit
LIM
I
0.60
0.75
0.90
A
On-Resistance
ON
R
0.50
0.75
1.00
Leakage Current
SWOFF
I
SW
V = 12V
0.01 20.00
µA
Control and Protection
PARAMETER
SYMBOL TEST CONDITION
MIN TYP MAX UNIT
EN pin Current
EN
I
4
6
µA
OVP Threshold
OVP
V
14.5
15.5
20.0
V
ENH
V
Chip Enable
0.8
1.4
V
Chip Enable/Disable
ENL
V
Chip Disable
0.4
0.8
V


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