CAT3612 Datasheet, PDF (7/13 Pages) Catalyst Semiconductor – Programmable 300mA Camera Flash LED Driver

CAT3612
TYPICAL CHARACTERISTICS
VIN = 3.6V, I_OUT = 100mA, C_IN = C_OUT = 2.2µF, C₁ = C₂ = 1µF, T_AMB = 25°C unless otherwise specified.
Enable and Output Current Dimming Waveforms
Line Transient Response (3.6V to 5.5V) 1x Mode
Enable High Minimum Program Time vs. Temperature
200
160
VIN = 3.5V
120
80
VIN = 4.2V
40
Enable Low Minimum Program Time vs. Temperature
200
VIN = 3.5V
160
120
VIN = 4.2V
80
40
0
-40
0
40
80
120
TEMPERATURE [°C]
0
-40
0
40
80
120
TEMPERATURE [°C]
Enable Voltage Threshold vs. Temperature
1.2
1.0
0.8
0.6
0.4
0.2
0.0
-40
0
40
80
120
TEMPERATURE [°C]
Foldback Current Limit
4.0
3.5
3.0
1x Mode
2.5
LED Off
2.0
1.5
1.0
0.5
0.0
0
100 200 300 400 500
OUTPUT CURRENT [mA]
© 2006 Catalyst Semiconductor, Inc.
7
Characteristics subject to change without notice
Doc. No. 5016 Rev. A