CAT3604V Datasheet, PDF (5/15 Pages) Catalyst Semiconductor – 4-Channel Quad-Mode™ LED Driver with Open/Short LED Detection

CAT3604V
TYPICAL PERFORMANCE CHARACTERISTICS
V_IN = 3.6V, I_OUT = 80mA (4 LEDs at 20mA), C_IN = C_OUT = C₁ = C₂ = 1μF, T_AMB = 25°C unless otherwise specified.
Switching Frequency vs. Temperature
1.3
Output Resistance vs. Input Voltage
12
1.2
1.5x Mode
1.1
10
2x
8
1.0
0.9
1.33x, 2x Mode
0.8
6
1.5x
4
2
1x
1.33x
0.7
-40
0
40
80 120
TEMPERATURE [°C]
0
2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5
INPUT VOLTAGE [V]
Foldback Current Limit
4.0
3.5
1x Mode
3.0
2.5
2.0
1.5
1.0
0.5
0.0
0
100 200 300 400
OUTPUT CURRENT [mA]
LED Current vs. RSET Resistance
100
LED Current vs. LED Pin Voltage
40
30
20
10
0
0 50 100 150 200 250 300
LED PIN VOLTAGE [mV]
Line Transient Response (3.6V to 4.9V)
10
1
1
10
100
RSET RESISTANCE [kΩ]
© Catalyst Semiconductor, Inc.
5
Characteristics subject to change without notice
Doc. No. MD-5029, Rev. B