- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄382828 > AAT1231ITP-T1 (Advanced Analog Technology,lnc.) Step-Up DC/DC Converters for White LED Backlight Applications PDF資料下載
參數(shù)資料
| 型號(hào)： | AAT1231ITP-T1 |
| 廠商： | Advanced Analog Technology,lnc. |
| 英文描述： | Step-Up DC/DC Converters for White LED Backlight Applications |
| 中文描述： | 升壓型DC / DC轉(zhuǎn)換器，用于白光LED背光應(yīng)用 |
| 文件頁(yè)數(shù)： | 18/27頁(yè) |
| 文件大?。?/td> | 1535K |
| 代理商： | AAT1231ITP-T1 |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)第16頁(yè)第17頁(yè)當(dāng)前第18頁(yè)第19頁(yè)第20頁(yè)第21頁(yè)第22頁(yè)第23頁(yè)第24頁(yè)第25頁(yè)第26頁(yè)第27頁(yè)
AAT1231/1231-1
Step-Up DC/DC Converters for
White LED Backlight Applications
18
1231.2007.01.1.2
Duty cycle is defined as the ON time divided by the
total switching interval.
The maximum duty cycle can be estimated from
the relationship for a continuous mode boost con-
verter. Maximum duty cycle (D
MAX
) is the duty cycle
at minimum input voltage (V
IN(MIN)
).
The average diode current during the OFF time can
be estimated.
The following curves show the V
F
characteristics
for different Schottky diodes (100°C case). The V
F
of the Schottky diode can be estimated from the
average current during the off time.
The average diode current is equal to the output
current.
The average output current multiplied by the for-
ward diode voltage determines the loss of the out-
put diode.
For continuous LED currents, the diode junction
temperature can be estimated.
T
J(DIODE)
= T
AMB
+
θ
JA
· P
LOSS(DIODE)
P
LOSS(DIODE)
= I
AVG(TOT)
·
V
F
= I
OUT
·
V
F
I
AVG(TOT)
= I
OUT
Forward Voltage (V)
F
10
100
1000
10000
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
B340LA
MBR0530T
ZHCS350
BAT42W
I
OUT
1 - D
MAX
I
AVG(OFF)
=
V
OUT
- V
IN(MIN)
V
OUT
D
MAX
=
T
ON
T
ON
+ T
OFF
D =
= T
ON
F
S
Table 4: Typical Surface Mount Schottky Rectifiers for Various Output Levels.
Rated
Forward
Current (A)
Non-Repetitive
Peak Surge
Current (A)
Thermal
Resistance
(
θ
JA
, °C/W)
25
500
206
330
500
Part
Number
Rated
Voltage (V)
Manufacturer
Case
Diodes, Inc.
Diodes, Inc.
ON Semi
Zetex
Central Semi
B340LA
BAT42W
MBR0530T
ZHCS350
CMDSH2-3
3
70.0
4.0
5.5
4.2
1.0
40
30
30
40
30
SMA
SOD-123
SOD-123
SOD-523
SOD-323
0.2
0.5
0.35
0.2
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AAT1232 | 24V 100mA Step-Up Converter |
| AAT1232IRN-T1 | 24V 100mA Step-Up Converter |
| AAT1232ITP-T1 | 24V 100mA Step-Up Converter |
| AAT1265 | Low Voltage 2MHz Step-Up DC/DC Converter in SC70JW Package |
| AAT1265_0606 | Low Voltage 2MHz Step-Up DC/DC Converter in SC70JW Package |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AAT1232 | 制造商:ANALOGICTECH 制造商全稱:Advanced Analogic Technologies 功能描述:24V 100mA Step-Up Converter |
| AAT1232_07 | 制造商:ANALOGICTECH 制造商全稱:Advanced Analogic Technologies 功能描述:24V 100mA Step-Up Converter |
| AAT1232IRN-T1 | 制造商:Advanced Analogic Tech 功能描述:IC DC/DC CONV STEP UP 24V 100MA |
| AAT1232ITP-DB1 | 制造商:Advanced Analogic Tech 功能描述:AAT1232 Series 24 V 100 mA Step-Up DC/DC Converter Eval Board 制造商:SKYWORKS SOLUTIONS 功能描述:AAT1232 Series 24 V 100 mA Step-Up DC/DC Converter Eval Board |
| AAT1232ITP-T1 | 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 24V 100mA Step-Up RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。