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AAT3174 Datasheet, PDF (6/14 Pages) Advanced Analogic Technologies – High Current, High Efficiency Charge Pump
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AAT3174
High Current, High Efficiency Charge Pump
Typical Characteristics
VIN = 3.6V, CIN = 4.7µF, COUT = 2.2µF, C1 = C2 = 1µF, TA = 25°C, unless otherwise noted.
Operating Characteristic
(VIN = 3.3V; 1.5X Mode; ILED = 300mA)
Operating Characteristic
(VIN = 2.9V; 2X Mode; ILED = 300mA)
VIN
(100mV/div)
VOUT
(200mV/div)
VSINK
(200mV/div)
VIN
(100mV/div)
VOUT
(200mV/div)
VSINK
(200mV/div)
Time (2µs/div)
Time (2µs/div)
LED Current vs. RSET
(Data = 1)
1000
900
800
700
600
500
400
300
200
100
0
100 200 300 400 500 600 700 800 900 1000
RSET (kΩ)
TOFF vs. VIN
180
25°C
160
140
-40°C
120
100
85°C
80
60
40
20
0
2.7 2.9 3.1 3.3 3.5 3.7 3.9 4.1 4.3 4.5 4.7 4.9 5.1 5.3 5.5
Input Voltage (V)
TLAT vs. VIN
160
140
120
-40°C
100
80
25°C
85°C
60
40
20
0
2.7 2.9 3.1 3.3 3.5 3.7 3.9 4.1 4.3 4.5 4.7 4.9 5.1 5.3 5.5
Input Voltage (V)
6
3174.2006.05.1.2
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