- 您現(xiàn)在的位置：買(mǎi)賣(mài)IC網(wǎng) > PDF目錄361025 > LM2796TL (NATIONAL SEMICONDUCTOR CORP) Dual-Display White LED Driver with 3/2x Switched Capacitor Boost PDF資料下載
參數(shù)資料
| 型號(hào)： | LM2796TL |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 顯示驅(qū)動(dòng)器 |
| 英文描述： | Dual-Display White LED Driver with 3/2x Switched Capacitor Boost |
| 中文描述： | LED DISPLAY DRIVER, PBGA18 |
| 封裝： | 2.10 X 2.40 MM, 0.60 MM HEIGHT, THIN MICRO SMD, 18 PIN |
| 文件頁(yè)數(shù)： | 1/8頁(yè) |
| 文件大?。?/td> | 172K |
| 代理商： | LM2796TL |
LM2796
Dual-Display White LED Driver with 3/2x Switched
Capacitor Boost
General Description
The LM2796 is a charge-pump based white-LED driver that
is ideal for mobile phone display backlighting. It can drive up
to 7 LEDs in parallel with up to 20mA through each LED.
Regulated internal current sources deliver excellent current
and brightness matching in all LEDs. The LED-driver current
sources are split into two independently controlled groups.
The primary group (4 LEDs) can be used to backlight the
main phone display. The second group (3 LEDs) can be
used to backlight a secondary display or to provide other
lighting features (keypad LEDs, for example). Brightness of
the two groups can be adjusted independently with pulse-
width modulated (PWM) digital signals.
The LM2796 works off an extended Li-Ion input voltage
range (2.7V to 5.5V). Voltage boost is achieved with a high-
efficiency 3/2x-gain charge pump.
The LM2796 is available in National’s chip-scale 18-bump
micro SMD package.
Features
n
Drives up to 7 LEDs with up to 20mA each
n
LEDs controlled in 2 Distinct Groups, for Backlighting 2
Displays (main LCD and sub-LCD)
n
Excellent Current and Brightness Matching
n
High-Efficiency 3/2x Charge Pump
n
Extended Li-Ion Input: 2.7V to 5.5V
n
PWM Brightness Control: 100Hz - 1kHz
n
18-bump Thin Micro SMD Package:
(2.1mm x 2.4mm x 0.6mm)
Applications
n
Mobile Phone Display Lighting
n
Mobile Phone Keypad Lighting
n
PDAs
n
General LED Lighting
Typical Application Circuit
20093801
February 2004
L
2004 National Semiconductor Corporation
DS200938
www.national.com
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LM2796TLX | Dual-Display White LED Driver with 3/2x Switched Capacitor Boost |
| LM2796 | Dual-Display White LED Driver with 3/2x Switched Capacitor Boost |
| LM2925 | Cap-Free, NMOS, 150mA Low Dropout Regulator with Reverse Current Protection |
| LM2925T | Cap-Free, NMOS, 150mA Low Dropout Regulator with Reverse Current Protection |
| LM2926T | Cap-Free, NMOS, 150mA Low Dropout Regulator with Reverse Current Protection |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM2796TL NOPB | 制造商:Texas Instruments 功能描述: |
| LM2796TL/NOPB | 功能描述:LED照明驅(qū)動(dòng)器 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 |
| LM2796TLEV | 功能描述:LED 照明開(kāi)發(fā)工具 LM2796TL DEV BOARD RoHS:否 制造商:Fairchild Semiconductor 產(chǎn)品:Evaluation Kits 用于:FL7732 核心: 電源電壓:120V 系列: 封裝: |
| LM2796TLX | 制造商:Texas Instruments 功能描述:LED DRVR 7Segment 3.3V/5V 18-Pin uSMD T/R |
| LM2796TLX/NOPB | 功能描述:LED照明驅(qū)動(dòng)器 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(gòu)，3分鐘左右您將得到回復(fù)。