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TPS61045DRBTG4 PDF预览

TPS61045DRBTG4

更新时间: 2024-11-25 11:08:07
品牌 Logo 应用领域
德州仪器 - TI 升压转换器开关控制器开关式稳压器开关式控制器电源电路开关式稳压器或控制器
页数 文件大小 规格书
20页 492K
描述
采用 QFN-8 封装的 28V、效率为 85% 的升压转换器,可进行数字调节 | DRB | 8 | -40 to 85

TPS61045DRBTG4 数据手册

 浏览型号TPS61045DRBTG4的Datasheet PDF文件第2页浏览型号TPS61045DRBTG4的Datasheet PDF文件第3页浏览型号TPS61045DRBTG4的Datasheet PDF文件第4页浏览型号TPS61045DRBTG4的Datasheet PDF文件第5页浏览型号TPS61045DRBTG4的Datasheet PDF文件第6页浏览型号TPS61045DRBTG4的Datasheet PDF文件第7页 
TPS61045  
www.ti.com  
SLVS440AJANUARY 2003REVISED SEPTEMBER 2003  
DIGITALLY ADJUSTABLE LCD BOOST CONVERTER  
FEATURES  
DESCRIPTION  
Input Voltage Range . . . 1.8 V to 6.0 V  
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.  
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  
APPLICATIONS  
LCD Bias Supply For Small to Medium LCD  
Displays  
OLED Display Power Supply  
– PDA, Pocket PC, Smart Phones  
– Handheld Devices  
– Cellular Phones  
D1  
MBR0530  
L1  
4.7 mH  
V
O
16.2 V to 18.9 V/ 10 mA  
C2  
4.7uF  
R1  
2.2 MW  
C3  
1 mF  
Cff  
22 pF  
1
8
R3  
1 MW  
L
SW  
DO  
V
CC  
= 1.8 V to 6 V  
C1  
2
5
6
3
4
VIN  
CTRL  
FB  
7
PGND  
GND  
100 nF  
R2  
180 kW  
Enable / LCD bias control  
Figure 1. Typical Application  
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments  
semiconductor products and disclaimers thereto appears at the end of this data sheet.  
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of Texas Instruments  
standard warranty. Production processing does not necessarily in-  
cludetestingofallparameters.  
Copyright © 2003, Texas Instruments Incorporated  

TPS61045DRBTG4 替代型号

型号 品牌 替代类型 描述 数据表
TPS61045DRBT TI

完全替代

DIGITALLY ADJUSTABLE LCD BOOST CONVERTER
TPS61045DRBR TI

类似代替

DIGITALLY ADJUSTABLE LCD BOOST CONVERTER

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