参数资料
型号: MIC3203-1YM TR
厂商: Micrel Inc
文件页数: 5/21页
文件大小: 0K
描述: IC LED DRIVER CTLR HB 8SOIC
标准包装: 2,500
恒定电流:
拓扑: PWM,降压(降压)
输出数: 1
内部驱动器:
类型 - 主要: 通用
类型 - 次要: 高亮度 LED(HBLED)
频率: 1.5MHz
电源电压: 4.5 V ~ 42 V
安装类型: 表面贴装
封装/外壳: 8-SOIC(0.154",3.90mm 宽)
供应商设备封装: 8-SOIC
包装: 带卷 (TR)
工作温度: -40°C ~ 125°C
Micrel, Inc.
Typical Characteristics
MIC3203
Efficiency
vs. Input Voltage
Efficiency
vs Input Voltage
Normalized LED Currents
vs. Input Voltage
100
100
1.03
L=150μH
ILED=1A
1.02
90
90
1.01
1LED
2LED
4LED
6LED
8LED
10LED
80
80
1
70
4LED
6LED
8LED
10LED
70
4LED
6LED
8LED
10LED
0.99
0.98
60
L=150μH
ILED=1A
60
L=68μH
ILED=1A
0.97
0
5
10
15
20
25
30
35
40
45
0
5
10
15 20 25 30
INPUT VOLTAGE (V)
35
40
45
0
5
10
15 20 25 30
INPUT VOLTAGE (V)
35
40
45
INPUT VOLTAGE (V)
Normalized LED Currents
vs Input Voltage
Frequency
vs. Input Voltage
Frequency
vs Input Voltage
1.03
1.02
L=68μH
ILED=1A
350
300
L=150μH
ILED=1A
700
600
L = 68μH
ILED = 1A
1.01
1
250
200
4LED
500
400
2LED
4LED
1LED
150
2LED
300
0.99
0.98
2LED
4LED
6LED
8LED
10LED
100
50
1LED
10LED
200
100
1LED
0.97
0
5
10
15
20
25
30
35
40
45
0
0
5
10
15
20
6LED
25
30
8LED
35
40
45
0
0
5
10
15
6LED
20
25
8LED
30
35
10LED
40
45
100
75
INPUT VOLTAGE (V)
Duty Cycle
vs. Input Voltage
100
75
INPUT VOLTAGE (V)
Duty Cycle
vs Input Voltage
1.4
1.2
1.0
0.8
INPUT VOLTAGE (V)
Supply Current
vs. Input Voltage
TA = 25°C
ILED = 0A
50
1LED
50
1LED
0.6
2LED
2LED
25
4LED
6LED
25
4LED
6LED
0.4
0.2
0
0
8LED
5
10
L=150μH
ILED=1A
15
20
25
30
35
10LED
40
45
0
0
8LED
5
10
L=68μH
ILED=1A
15
20
25
30
35
10LED
40
45
0.0
0
5
10 15 20 25 30 35
INPUT VOLTAGE (V)
40
45
INPUT VOLTAGE (V)
INPUT VOLTAGE (V)
March 2010
5
M9999-032910-A
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