AAT3193 Datasheet, PDF (8/18 Pages) Advanced Analogic Technologies – 3-Channel Charge-Pump LED Driver

ChargePump^TM
Typical Characteristics
Transition of LED Current
(20mA to 1.3mA)
EN
(2V/div)
V_{OUT 4.0V}
(1V/div)
V_SINK
(1V/div)
0.5V
I_IN
(50mA/div)
Time (100µs/div)
V_IN
(AC Coupled)
(20mV/div)
V_OUT
(AC Coupled)
(20mV/div)
V_SINK
(AC Coupled)
(50mV/div)
Output Ripple Waveform
(2X Mode; 20mA Load)
Time (1µs/div)
PRODUCT DATASHEET
AAT3193
3-Channel Charge-Pump LED Driver
EN
(2V/div)
Transition of LED Current
(1.3mA to 20mA)
V_OUT
(1V/div)
4.2V
V_SINK ^1.5V
(1V/div)
I_IN
(50mA/div)
Time (100µs/div)
Input Current vs. Input Voltage
(Excluding AAT3193-4, PWM Option)
200
180
160 ^{ILED = 30mA}
140
VIN Falling
VIN Rising
120
100 ^{ILED = 20mA}
80
60
40 ^ILED ^{= 10mA}
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)
8
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3193.2008.07.1.3