mic3201 Micrel Semiconductor, mic3201 Datasheet - Page 4

• Manufacturer Part Number: mic3201
• Description: High Brightness Led Driver With High-side Current Sense
• Manufacturer: Micrel Semiconductor

Typical Characteristics
Micrel, Inc.
January 2010
1200
1000
250
200
150
100
800
700
600
500
400
300
200
100
800
600
400
200
50
90
80
70
60
50
40
30
20
10
0
0
0
0
5
5
5
5
V
CS(Max)
Current Sense Voltage
Switching Frequency
vs. Input Voltage
INPUT VOLTAGE (V)
INPUT VOTLAGE (V)
INPUT VOLTAGE (V)
vs. Input Voltage
INPUT VOTLAGE (V)
vs. Input Voltage
vs. Input Voltage
2 LED Current
1 LED Efficiency
10
10
10
10
350mA
1A
V
350mA
R
L = 22µH
T
15
15
CS(Min)
15
15
A
CS
1A
= 25°C
= 0.2Ω
20
20
20
20
100
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
90
80
70
60
50
40
30
20
10
7.0
6.0
5.0
4.0
3.0
2.0
1.0
0.0
0
5
5
5
0
Enable Threshold
vs. Input Voltage
INPUT VOLTAGE (V)
INPUT VOLTAGE (V)
vs. Input Voltage
vs. Input Voltage
2 LED Efficiency
INPUT VOTLAGE (V)
Supply Current
5
10
10
10
4
ICC (mA)
vs. ICC
VCC
10
15
15
T
T
T
350mA
15
A
A
A
= 25°C
= 25°C
= 25°C
15
1A
20
20
20
20
0.050
0.045
0.040
0.035
0.030
0.025
0.020
0.015
0.010
0.005
0.000
1200
1000
800
600
400
200
7.0
6.0
5.0
4.0
3.0
2.0
1.0
0.0
350
300
250
200
150
100
50
0
0
5
5
5
0
Shutdown Current
vs. Input Voltage
SWITCH CURRENT (A)
INPUT VOTLAGE (V)
vs. Switch Current
vs. Input Voltage
INPUT VOLTAGE (V)
0.25
1 LED Current
vs. Input Voltage
INPUT VOLTAGE (V)
Switch Voltage
10
10
10
350mA
VCC
1A
M9999-011210-B
0.5
T
T
A
A
15
15
15
T
= 25°C
= 25°C
A
0.75
MIC3201
= 25°C
20
20
20
1