CAT4101TV-T75 Datasheet, PDF (5/11 Pages) ON Semiconductor – 1 A Constant-Current LED Driver with PWM Dimming

CAT4101
TYPICAL PERFORMANCE CHARACTERISTICS
V_IN = 5 V, V_CC = 5 V, V_F = 3.5 V, I_LED = 1 A (1 LED), C_IN = 1 μF, T_AMB = 25°C unless otherwise specified.
RSET Pin Voltage vs. VIN Voltage
RSET Pin Voltage vs. Temperature
1.30
1.30
1.25
1.25
1.20
1.20
1.15
1.15
1.10
3.0 3.5 4.0 4.5 5.0 5.5
INPUT VOLTAGE [V]
LED Current vs. RSET Resistor
1.2
1.0
0.8
0.6
0.4
0.2
0.0
0
1
2
3
4
5
RSET [kΩ]
LED Current vs. PWM Duty Cycle
100
10
100Hz
1
50kHz
0.1
0.1
5kHz
1kHz
1
10
100
DUTY CYCLE [%]
1.10
-40
0
40
80
120
TEMPERATURE [ºC]
PWM 200 Hz, 1% Duty Cycle
EN/PWM Threshold vs. VIN
1.4
1.2
-40ºC
25ºC
1.0
0.8
85ºC
0.6
0.4
3.0 3.5 4.0 4.5 5.0 5.5
INPUT VOLTAGE [V]
© 2009 SCILLC. All rights reserved.
5
Characteristics subject to change without notice
Doc. No. MD-5036, Rev. D