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| AAT1500 Datasheet, PDF (3/11 Pages) List of Unclassifed Manufacturers – CONSTANT CURRENT BOOST CONVERTER FOR 1 TO 4 WHITE LEDS | |||
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Advanced Analog Technology, Inc.
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
VDD
2.6
6.0 V
Under Voltage Lockout
VUVLO
1.8 2.2 2.3 V
Operating Current
Quiescent Current
Shutdown Current
IDD VDD = 5.5V, Switch On
IQ
VDD = 5.5V
VFB = 1.3V, Switch Off
I SD
VDD = 5.5V, VEN < 0.4V
2 mA
250 500 µA
0.1 1 µA
Oscillator
PARAMETER
Operating Frequency
Maximum Duty Cycle
Reference Voltage
PARAMETER
Feedback Voltage
SYMBOL
f OSC
D MAX
TEST CONDITION
MIN
0.8
79
TYP MAX UNIT
1.0 1.2 MHz
85 92 %
SYMBOL TEST CONDITION MIN TYP MAX UNIT
VIE Note 2
0.237 0.250 0.263 V
N-Channel Switch
PARAMETER
Current Limit
On-Resistance
Leakage Current
SYMBOL
I LIM
R ON
TEST CONDITION
ISWOFF VSW = 12V
MIN TYP MAX UNIT
0.60 0.75 0.90 A
0.50 0.75 1.00 â¦
0.01 20.00 µA
Control and Protection
PARAMETER
EN pin Current
OVP Threshold
Chip Enable/Disable
SYMBOL
I EN
VOVP
VENH
VENL
TEST CONDITION
Chip Enable
Chip Disable
MIN TYP MAX UNIT
4 6 µA
14.5 15.5 20.0 V
0.8 1.4 V
0.4 0.8
V
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Page 3 of 11
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