AAT3155 Datasheet, PDF (6/11 Pages) Advanced Analogic Technologies – High Efficiency 1X/1.5X/2X Charge Pump For White LED Applications

AAT3155
High Efficiency 1X/1.5X/2X Charge Pump
For White LED Applications
Typical Characteristics
C_IN = C_OUT = C₁ = C₂ = 1.0µF; T_A = 25°C, V_IN = 3.6V, unless otherwise noted.
Load Characteristics
(V_IN = 3.9V; 1.5X Mode; 20mA Load)
Load Characteristics
(V_IN = 3.9V; 1.5X Mode; 14mA Load)
V_IN
(40mV/div)
V_CP
(40mV/div)
V_SINK
(20mV/div)
V_IN
(40mV/div)
V_CP
(20mV/div)
V_SINK
(20mV/div)
Time (500ns/div)
Time (500ns/div)
V_IN
(40mV/div)
V_CP
(40mV/div)
V_SINK
(40mV/div)
Load Characteristics
(V_IN = 2.9V; 2X Mode; 20mA Load)
Time (500ns/div)
V_IN
(40mV/div)
V_CP
(40mV/div)
V_SINK
(40mV/div)
Load Characteristics
(V_IN = 2.9V; 2X Mode; 14mA Load)
Time (500ns/div)
Input Ripple vs. Input Voltage
14.0
12.0
20mA/channel
10.0
14mA/channel
8.0
6.0
4.0
10mA/
2.0 _channel
0.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
Input Voltage (V)
EN/SET Latch Timeout vs. Input Voltage
350
300
250
-40°C
200
150
100
25°C
85°C
50
0
2.7
3.1
3.5
3.9
4.3
4.7
5.1
5.5
Input Voltage (V)
6
3155.2006.05.1.1