參數(shù)資料
型號(hào): CAT4201
元件分類: LED驅(qū)動(dòng)器
英文描述: 350mA High Efficiency Step Down LED Driver
中文描述: 350mA的高效率LED驅(qū)動(dòng)下步
文件頁(yè)數(shù): 4/15頁(yè)
文件大小: 330K
代理商: CAT4201
CAT4201
Doc. No. MD-5025 Rev. B
4
Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
TYPICAL OPERATION CHARACTERISTICS
V
IN
= 13V, I
LED
= 300mA, L = 22
μ
H, C
1
= 4.7
μ
F, C
2
= 10
μ
F, T
AMB
= 25°C unless otherwise specified
Switching Frequency vs. Input Voltage (1 LED)
0
100
200
300
400
500
8
12
INPUT VOLTAGE [V]
16
20
24
28
S
150mA
300mA
Switching Frequency vs. Input Voltage (2 LEDs)
0
100
200
300
400
500
600
700
8
12
INPUT VOLTAGE [V]
16
20
24
28
S
300mA
150mA
Switching Frequency vs. Temperature
100
200
300
400
500
-40
0
40
80
120
TEMPERATURE [°C]
S
150mA
300mA
VIN = 13V
Switch ON Resistance vs. Input Voltage
0
0.4
0.8
1.2
1.6
2
8
10 12 14 16 18 20 22 24
INPUT VOLTAGE [V]
S
]
Efficiency vs. Input Voltage (1 LED)
70
75
80
85
90
95
100
8
10 12 14 16 18 20 22 24
INPUT VOLTAGE [V]
E
300mA
150mA
Efficiency vs. Input Voltage (2 LEDs)
70
75
80
85
90
95
100
8
10 12 14 16 18 20 22 24
INPUT VOLTAGE [V]
E
300mA
150mA
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