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參數(shù)資料
| 型號： | TK61220AQ4 |
| 廠商： | TOKO INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | SWITCHING REGULATOR, QCC24 |
| 封裝： | 4 X 4 MM, HQFN-24 |
| 文件頁數(shù)： | 11/23頁 |
| 文件大?。?/td> | 342K |
| 代理商： | TK61220AQ4 |
TK61220AQ4
GC3-N008B
Page 19
11-9-3. Characteristics
Efficiency vs. Supply Current (ILED=73.5mA)
LED Current vs. Supply Current (VLED=5.0V)
60
65
70
75
80
85
90
95
100
7.0
8.5
10.0
11.5
13.0 14.5
16.0
Supply Voltage [ V ]
60
65
70
75
80
85
90
7.0
8.5
10.0
11.5
13.0
14.5
16.0
Supply Voltage [ V ]
LED
C
u
rrent
[
mA
]
LED Current vs. Duty Ratio(PWM Signal Frequency=200Hz)
0
10
20
30
40
50
60
70
80
0
20406080
100
LED
Current
[
mA
]
*
100
I
V
I
V
I
V
Efficiency
IN
2
LED
2
OUT
1
LED
1
OUT
×
+
×
=
(
%)
*Current loss of IC oneself is not calculated in upper expression.
*
mA
5
.
73
8
.
6
V
5
.
0
R
V
I
LED
FB
LED
=
=
Duty Ratio [
%]
Dut
y
R
atio
[%
]
VIN=7V, 12V, 16V
ILED1, ILED2
D63LCB
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