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參數(shù)資料
| 型號： | TPS61045DRB |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | DIGITALLY ADJUSTABLE LCD BOOST CONVERTER |
| 中文描述： | 數(shù)字可調液晶Boost變換器 |
| 文件頁數(shù)： | 4/20頁 |
| 文件大?。?/td> | 499K |
| 代理商： | TPS61045DRB |
www.ti.com
FB
PGND
SW
VIN
CTRL
+
-
Current Limit
+
-
ErrorComparator
S
R
CTRL
L
DO
GND
Q1
Input switch
400 ns Min
Off Time
Undervoltage
Lockout
Bias Supply
Gate
Driver
Gate
Driver
RS Latch
Logic
6 s Max
On Time
V
ref
= 1.233 V
Digital
Interface
6 Bit DAC
Soft
Start
Q2
Main Switch
R
sense
TPS61045
SLVS440A–JANUARY 2003–REVISED SEPTEMBER 2003
TERMINAL FUNCTIONS
TERMINAL
I/O
DESCRIPTION
NAME
NO.
CTRL
5
I
Combined enable and digital output voltage programming pin. Pulling CTRL constantly high enables
the device. When CTRL is pulled to GND, the device is disabled and the input is disconnected from
the output by opening the integrated switch Q1. Pulsing CTRL low increases or decreases the output
voltage. Refer to the
application information
section for further information.
DO
3
O
Internal DAC output. DO programs the output voltage via the CTRL pin. Refer to the
application
information
section for further information.
FB
4
I
Feedback. FB must be connected to the output voltage-feedback divider.
GND
7
Analog ground. GND must be directly connected to the PGND pin. Refer to the
application
information
section for further information.
L
1
O
Drain of the internal switch (Q1). Connect L to the inductor.
PGND
6
Power ground
SW
8
I
Drain of the integrated switch Q2. SW is connected to the inductor and anode of the Schottky rectifier
diode.
VIN
2
I
Input supply pin
FUNCTIONAL BLOCK DIAGRAM
4
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相關代理商/技術參數(shù) |
參數(shù)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(shù)位數(shù)量:5 片段數(shù)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(shù)位數(shù)量:5 片段數(shù)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(shù)位數(shù)量:5 片段數(shù)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(fā)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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