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參數資料
| 型號： | TPS61045DRB |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | DIGITALLY ADJUSTABLE LCD BOOST CONVERTER |
| 中文描述： | 數字可調液晶Boost變換器 |
| 文件頁數： | 1/20頁 |
| 文件大小： | 499K |
| 代理商： | TPS61045DRB |
www.ti.com
1 M
C1
100 nF
C3
1 F
L
VIN
SW
DO
FB
L1
D1
MBR0530
GND
CTRL
PGND
Enable / LCD bias control
C2
4.7uF
R2
R1
R3
Cff
22 pF
4.7 H
2.2 M
V
O
16.2 V to 18.9 V/ 10 mA
180 k
V
CC
= 1.8 V to 6 V
1
2
5
6
8
3
4
7
TPS61045
SLVS440A–JANUARY 2003–REVISED SEPTEMBER 2003
DIGITALLY ADJUSTABLE LCD BOOST CONVERTER
FEATURES
Input Voltage Range . . . 1.8 V to 6.0 V
Up to 85% Efficiency
Digitally Adjustable Output Voltage Control
Disconnects Output From Input During Shut-
down
Switching Frequency . . . Up to 1 MHz
No Load Quiescent Current . . . 40 μA Typ
Thermal Shutdown Mode
Shutdown Current . . . 0.1 μA Typ
Available in Small 3mm
×
3mm QFN package
DESCRIPTION
The TPS61045 is a high frequency boost converter with
digitally programmable output voltage and true shut-
down. During shutdown the output is disconnected
from the input by opening the internal input switch. This
allows a controlled power up/down sequencing of the
display. The output voltage can be increased or de-
creased in digital steps by applying a logic signal to the
CTRL pin. The output voltage range, as well as the
output voltage step size, can be programmed with the
feedback divider network. With a high switching fre-
quency of up to 1 MHz the TPS61045 allows the use of
small external components and together, with the small
8-pin QFN package, a miminum system solution size is
achieved.
APPLICATIONS
LCD Bias Supply For Small to Medium LCD
Displays
OLED Display Power Supply
– PDA, Pocket PC, Smart Phones
– Handheld Devices
– Cellular Phones
Figure 1. Typical Application
Pleasebeawarethatanimportantnoticeconcerningavailability, standard warranty, and use in critical applications of Texas Instruments
semiconductorproductsanddisclaimerstheretoappears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
ProductsconformtospecificationsperthetermsofTexasInstruments
standard warranty. Production processing does not necessarily in-
cludetestingofallparameters.
Copyright 2003, Texas Instruments Incorporated
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相關代理商/技術參數 |
參數描述 |
|---|---|
| TPS61045DRBR | 功能描述:LED顯示驅動器 28-V 85% Eff Boost Converter RoHS:否 制造商:Micrel 數位數量:5 片段數量: 安裝風格:SMD/SMT 封裝 / 箱體:PLCC-44 工作電源電壓:4.75 V to 11 V 最大電源電流:10 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝:Tube |
| TPS61045DRBRG4 | 功能描述:LED顯示驅動器 28-V 85% Eff Boost Converter RoHS:否 制造商:Micrel 數位數量:5 片段數量: 安裝風格:SMD/SMT 封裝 / 箱體:PLCC-44 工作電源電壓:4.75 V to 11 V 最大電源電流:10 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝:Tube |
| TPS61045DRBT | 功能描述:LED顯示驅動器 28-V 85% Eff Boost Converter RoHS:否 制造商:Micrel 數位數量:5 片段數量: 安裝風格:SMD/SMT 封裝 / 箱體:PLCC-44 工作電源電壓:4.75 V to 11 V 最大電源電流:10 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝:Tube |
| TPS61045DRBTG4 | 功能描述:LED照明驅動器 28-V 85% Eff Boost Converter 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: 安裝風格:SMD/SMT 封裝 / 箱體:SO-16N |
| TPS61045EVM-231 | 功能描述:電源管理IC開發工具 TPS61045-231 Eval Mod RoHS:否 制造商:Maxim Integrated 產品:Evaluation Kits 類型:Battery Management 工具用于評估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V |
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