參數(shù)資料
型號: CAT4240
元件分類: LED驅(qū)動器
英文描述: 6 Watt Boost LED Driver
中文描述: 6瓦升壓LED驅(qū)動器
文件頁數(shù): 4/14頁
文件大小: 319K
代理商: CAT4240
CAT4240
Doc. No. MD-5026 Rev. B
4
Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
TYPICAL CHARACTERISTICS
VIN = 5V, V
L
= 13V, T
AMB
= 25oC, typical application circuit unless otherwise specified.
LED Current vs. Input Voltage
100
150
200
250
300
350
8
9
INDUCTOR VOLTAGE [V]
10 11 12 13 14 15 16
L
RSET = 1
VOUT = 19.5V
RSET = 2
VOUT = 18.8V
LED Current Regulation
-2.0
-1.5
-1.0
-0.5
0.0
0.5
1.0
1.5
2.0
8
9
INDUCTOR VOLTAGE [V]
10 11 12 13 14 15 16
L
6 LEDs @ 150mA
Efficiency vs. Load Current (6 LEDs)
80
85
90
95
100
50
100
LED CURRENT [mA]
150
200
250
300
E
Efficiency vs. Inductor Voltage (6 LEDs)
80
85
90
95
100
8
9
INDUCTOR VOLTAGE [V]
10 11 12 13 14 15 16
E
Power-up with 6 LEDs at 300mA
Switching Waveform
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