cat4101 ON Semiconductor, cat4101 Datasheet - Page 5

• Manufacturer Part Number: cat4101
• Description: 1 A Constant-current Led Driver With Pwm Dimming
• Manufacturer: ON Semiconductor

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