AAT2806_07 Datasheet, PDF (8/16 Pages) Advanced Analogic Technologies – Dual High Efficiency Charge Pump for White LED and Flash Applications

AAT2806
Dual High Efficiency Charge Pump
for White LED and Flash Applications
Typical Characteristics– White LED Backlight Driver Section
Load Characteristics
(V_IN = 3.7V; 1.5X Mode; 14mA Load)
Load Characteristics
(V_IN = 2.7V; 2X Mode; 14mA Load)
V_IN
(40mV/div)
CP
(40mV/div)
V_SINK
(40mV/div)
V_IN
(40mV/div)
CP
(40mV/div)
V_SINK
(40mV/div)
Time (500ns/div)
Time (500ns/div)
V_IN
(40mV/div)
CP
(40mV/div)
V_SINK
(40mV/div)
Load Characteristics
(V_IN = 3.9V; 1.5X Mode; 20mA Load)
Time (500ns/div)
V_IN
(40mV/div)
CP
(40mV/div)
V_SINK
(40mV/div)
Load Characteristics
(V_IN = 2.9V; 2X Mode; 20mA Load)
Time (500ns/div)
EN/SET Latch Timeout vs. Input Voltage
350
300
250
-40°C
200
150
100
25°C
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
Input Voltage (V)
EN/SET Off Timeout vs. Input Voltage
400
350
300
-40°C
250
200
150
25°C
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
Input Voltage (V)
8
2806.2007.09.1.9