- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄98283 > TPS60251RTWT (TEXAS INSTRUMENTS INC) SWITCHED CAPACITOR CONVERTER, 750 kHz SWITCHING FREQ-MAX, PQCC24 PDF資料下載
參數(shù)資料
| 型號(hào)： | TPS60251RTWT |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | SWITCHED CAPACITOR CONVERTER, 750 kHz SWITCHING FREQ-MAX, PQCC24 |
| 封裝： | 4 X 4 MM, GREEN, PLASTIC, QFN-24 |
| 文件頁數(shù)： | 9/26頁 |
| 文件大小： | 783K |
| 代理商： | TPS60251RTWT |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁當(dāng)前第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁
www.ti.com
APPLICATION CIRCUITS
C1+
SDAT
DS1 DS2 DM5
VIO
NC
GND
NC-G
NC
DM1
DM2
DM3
DM4
IS
ENA
GND
C2+
C2-
C1-
VOUT
VIN
MainDisplay
C1
C4
C2
1 F
m
C3
SubDisplay
SCLK
I2CInterface
1.8VforI/O
Input
R1
562kW
1 F
m
4.7 F
m
4.7 F
m
hLight +
I
O
V
F
V
in
I
O ) Iop
(7)
SLVS767C – APRIL 2007 – REVISED NOVEMBER 2007
Figure 20. The Typical Application Circuit for Sub and Main Display
As shown in Figure 20, this is a typical application circuit for a clam shell phone with 5 main LEDs and 2 sub
LEDs. Recently, the LCD panel makers have developed a new panel that has improved the transparency rate
which makes system efficiency with a 100-
A LED current a critical load point. To meet system efficiency
requirements with the light load conditions for the new LCD operating panel, the TPS60251 has a maximum
55-
A operating current with the 100-A output load condition. In this application, the controller always operates
in 1
× mode due to the WLED's low forward voltage drop (about 2.6V
F with a 100-A WLED current). Thus, the
total efficiency at a light load condition is determined using Equation 7:
Where:
IO: Output Load (WLED) Current
VF: Forward Voltage Drop of WLED
Vin: Input Voltage
Iop: Operating Current of LED Driver
Copyright 2007, Texas Instruments Incorporated
17
Product Folder Link(s): TPS60251
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| TPS60401DBVRG4 | SWITCHED CAPACITOR CONVERTER, 28 kHz SWITCHING FREQ-MAX, PDSO5 |
| TPS60402DBVRG4 | SWITCHED CAPACITOR CONVERTER, 70 kHz SWITCHING FREQ-MAX, PDSO5 |
| TPS61045DRBTG4 | 0.45 A SWITCHING REGULATOR, 1000 kHz SWITCHING FREQ-MAX, PDSO8 |
| TPS61045DRBR | 0.45 A SWITCHING REGULATOR, 1000 kHz SWITCHING FREQ-MAX, PDSO8 |
| TPS61080DRCR | 1 A SWITCHING REGULATOR, 1500 kHz SWITCHING FREQ-MAX, PDSO10 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TPS60251RTWT | 制造商:Texas Instruments 功能描述:DC/DC Charge Pump Converter IC |
| TPS60251RTWTG4 | 功能描述:LED照明驅(qū)動(dòng)器 High Eff Charge Pump 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 |
| TPS60252RTE | 制造商:TI 制造商全稱:Texas Instruments 功能描述:HIGH EFFICIENCY CHARGE PUMP FOR 7 WLEDs WITH I2C INTERFACE |
| TPS60252RTER | 功能描述:LED照明驅(qū)動(dòng)器 High Eff Charge Pump for 7 WLEDs 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 |
| TPS60252RTERG4 | 功能描述:LED照明驅(qū)動(dòng)器 Hi Eff Charge Pump for 7 WLEDs 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 |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。