AAT3170_08 Datasheet, PDF (7/15 Pages) Advanced Analogic Technologies – High Current LED Flash Driver Charge Pump IC

ChargePump^TM
PRODUCT DATASHEET
AAT3170
High Current LED Flash Driver Charge Pump IC
Typical Characteristics
V_IN = 3.6V, C_IN = 4.7μF, C_OUT = 2.2μF, C₁ = C₂ = 1μF, T_A = 25°C, unless otherwise noted.
Flash Timer Duration
(C_T = 0.1µF; Data = 16)
140
120
85°C
100
80
25°C
60
40
-40°C
20
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
Supply Voltage (V)
EN/SET Latch Timeout vs. Supply Voltage
350
300
250
25°C
-40°C
200
150
100
85°C
50
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
Supply Voltage (V)
EN/SET Off Timeout vs. Supply Voltage
350
300
25°C
250
-40°C
200
150
85°C
100
50
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
Supply Voltage (V)
EN/SET High Threshold Voltage
vs. Supply Voltage and Temperature
1.0
0.9
-40°C
0.8
0.7
85°C
25°C
0.6
0.5
0.4
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
Supply Voltage (V)
EN/SET Low Threshold Voltage
vs. Supply Voltage and Temperature
1.0
0.9
-40°C
0.8
0.7
0.6
25°C
85°C
0.5
0.4
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
Supply Voltage (V)
3170.2007.11.1.2
www.analogictech.com
7