參數(shù)資料
型號(hào)： TB62732FUG
廠商： Toshiba Corporation
元件分類(lèi)： LED驅(qū)動(dòng)器
英文描述： Step-up DC/DC Converter for White LED Driver
中文描述： 升壓直流/直流轉(zhuǎn)換器白光LED驅(qū)動(dòng)器
文件頁(yè)數(shù)： 10/18頁(yè)
文件大?。?/td> 294K
代理商： TB62732FUG
TB62732FUG
2006-06-14
10
Application Evaluation Circuit Example 1
(Example of evaluation result using a
small coil: Coil LDR304612T-6R8)
6.8
μ
H is optimum for illuminating serial LEDs 3 to 4 LEDs using I
F
=
20 mA.
4.7
μ
H is recommended for steady illumination of serial LED 2 in the range V
IN
>
4.5 V.
Note 5: Connection of C
3
is not necessary in every case.
The I
F
is expected to stabilize on decrease of voltage.
V
IN
– Efficiency/I
F
25
R
=
2
L1 : TDK LDR304612T-6R8
S-Di TOSHIBA CUS02 30 V/1 A
LED NICHIA NSCW215T
V
IN
=
3.0 to 4.3 V
ON
OFF
L1
=
6.8
μ
H
S-Di
C
2
=
μ
F
V
CC
A
SHDN
GND
K
C
1
=
μ
F
C
3
=
0
μ
F
3 to 4
LEDs
I
F
V
IN
(V)
L
F
E
15
20
65
85
75
80
4 LEDs efficiency
4 LEDs IF
3
4.2
3.2
3.6
3.8
3.4
4
70
V
IN
– Efficiency/I
F
V
IN
(V)
L
F
E
V
IN
– Efficiency/I
F
V
IN
(V)
L
F
E
<Measurement>
Efficiency in the range V
IN
=
3.0 to 4.3 V
Number
of LED
Efficiency (%)
Average Efficiency
(%)
2
79.0 to 83.8
81.6
3
75.1 to 80.9
78.3
4
72.0 to 78.3
75.7
I
F
in the range V
IN
=
3.0 to 4.3 V
Number
of LED
I
F
(mA)
V
CC
Dependence (%)
2
19.5 to 21.1
7.8
3
19.5 to 20.5
4.9
4
19.6 to 20.7
5.3
Note 6: The above values have been obtained
through Toshiba’s own measurements.
However, results may vary according to the
measurement environment.
15
25
20
65
85
75
80
3 LEDs efficiency
3 LEDs IF
3
4.2
3.2
3.6
3.8
3.4
4
70
15
25
20
65
85
75
80
2 LEDs efficiency
2 LEDs IF
3
4.2
3.2
3.6
3.8
3.4
4
70
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TB62733FTG 制造商:TOSHIBA 制造商全稱(chēng):Toshiba Semiconductor 功能描述:Charge Pump type DC/DC Converter for White LED Driver
TB62734FMG 制造商:MARKTECH 制造商全稱(chēng):Marktech Corporate 功能描述:Step Up Type DC-DC Converter for White LED
TB62736FUG 制造商:MARKTECH 制造商全稱(chēng):Marktech Corporate 功能描述:Step-up Type DC-DC Converter for White LEDs
TB62736FUG(O,EL) 功能描述:LED照明驅(qū)動(dòng)器 White LED Driver RoHS:否 制造商:STMicroelectronics 輸入電壓:11.5 V to 23 V 工作頻率: 最大電源電流:1.7 mA 輸出電流: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SO-16N
TB62737FPG(O,EL) 功能描述:LED照明驅(qū)動(dòng)器 White LED Driver RoHS:否 制造商:STMicroelectronics 輸入電壓:11.5 V to 23 V 工作頻率: 最大電源電流:1.7 mA 輸出電流: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SO-16N
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