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參數資料
| 型號： | LM2702 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | TFT Panel Module |
| 中文描述： | 液晶面板模塊 |
| 文件頁數： | 1/21頁 |
| 文件大小： | 813K |
| 代理商： | LM2702 |
LM2702
TFT Panel Module
General Description
The LM2702 is a compact bias solution for TFT displays. It
has a current mode PWM step-up DC/DC converter with a
2A, 0.2
internal switch. Capable of generating 8V at
170mA from a Lithium Ion battery, the LM2702 is ideal for
generating bias voltages for large screen LCD panels. The
LM2702 operates at a switching frequency of 600kHz allow-
ing for easy filtering and low noise. An external compensa-
tion pin gives the user flexibility in setting frequency compen-
sation, which makes possible the use of small, low ESR
ceramic capacitors at the output. The LM2702 uses a pat-
ented internal circuitry to limit startup inrush current of the
boost switching regulator without the use of an external
softstart capacitor. An external softstart pin enables the user
to tailor the softstart to a specific application. The LM2702
has an internal controllable PMOS switch used for control-
ling the row driver voltages. The switch can be controlled
externally with a control pin and delay time. The LM2702
contains a Vcom amplifier and a Gamma buffer capable of
supplying 50mA source and sink. The TSSOP-16 package
ensures a low profile overall solution.
Features
n
2A, 0.2
, internal power switch
n
V
IN
operating range: 2.2V to 12V
n
600kHz switching frequency step-up DC/DC converter
n
Inrush current limiting circuitry
n
External softstart override
n
Internal 7.3
PMOS switch
n
PMOS switch control pin
n
PMOS switch delay pin
n
Vcom amplifier
n
Gamma buffer
n
16 pin TSSOP package
Applications
n
LCD Bias Supplies
Typical Application Circuit
20051131
November 2002
L
2002 National Semiconductor Corporation
DS200511
www.national.com
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相關代理商/技術參數 |
參數描述 |
|---|---|
| LM2702A-ADJ WAF | 制造商:Texas Instruments 功能描述: |
| LM2702MT-ADJ | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:TFT Panel Module |
| LM2702MT-ADJ/NOPB | 功能描述:IC MODULE PANEL TFT DISP 16TSSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 電源管理 - 專用 系列:- 應用說明:Ultrasound Imaging Systems Application Note 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:37 系列:- 應用:醫療用超聲波成像，聲納 電流 - 電源:- 電源電壓:2.37 V ~ 6 V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:56-WFQFN 裸露焊盤 供應商設備封裝:56-TQFN-EP（8x8） 包裝:管件 |
| LM2702MTX-ADJ | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:TFT Panel Module |
| LM2703 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Micropower Step-up DC/DC Converter with 350mA Peak Current Limit |
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