AAT3192/93
Low-Cost, 2-/3-Channel
Charge-Pump LED Drivers
Typical Characteristics
Turn On to 1X Mode
(VIN = 4.2V; 20mA/ch)
Maximum LED Current vs RSET
32
28
24
20
16
12
8
EN/SET
(2V/div)
VF
(2V/div)
VSINK
(2V/div)
IIN
(200mA/div)
4
0
8
13
18
23
28
33
RSET (kΩ)
Time (200µs/div)
EN Input High Threshold Voltage
vs. Input Voltage
EN Input Low Threshold Voltage
vs. Input Voltage
1.2
1.0
0.8
0.6
0.4
0.2
1.2
1.0
0.8
0.6
0.4
0.2
-40°C
25°C
-40°C
85°C
25°C
85°C
2.7
3.1
3.5
3.9
4.3
4.7
5.1
5.5
2.7
3.1
3.5
3.9
4.3
4.7
5.1
5.5
Input Voltage (V)
Input Voltage (V)
EN/SET Input Latch Timeout vs. Input Voltage
EN/SET Input OFF Timeout vs. Input Voltage
350
350
85°C
85°C
300
300
250
250
25°C
200
200
25°C
-40°C
-40°C
150
150
100
100
2.7
3.1
3.5
3.9
4.3
4.7
5.1
5.5
2.7
3.1
3.5
3.9
4.3
4.7
5.1
5.5
Input Voltage (V)
Input Voltage (V)
3193.2007.05.1.0
7
ANALOGICTECH [ ADVANCED ANALOGIC TECHNOLOGIES ]
