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參數(shù)資料
| 型號(hào)： | LM27953TLX |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 顯示驅(qū)動(dòng)器 |
| 英文描述： | CABLE 64 COND 100FT TWISTED PAIR |
| 中文描述： | LED DISPLAY DRIVER, PBGA18 |
| 封裝： | 2.10 X 2.40 MM, 0.60 MM HEIGHT, TLA-18 |
| 文件頁數(shù)： | 1/11頁 |
| 文件大?。?/td> | 681K |
| 代理商： | LM27953TLX |
LM27953
White LED Driver with Four LED Current Sinks and 3/2x
Switched Capacitor Boost
General Description
The LM27953 is a charge-pump-based white-LED driver that
is ideal for mobile phone display backlighting. It is intended
to drive 4 LEDs for a main phone display backlight. Regu-
lated internal current sources deliver excellent current and
brightness matching in all LEDs.
The LED driver current sinks can be used to backlight a main
phone display with up to 4 LEDs. The low-side current
drivers accommodate common-anode-type LEDs. The cur-
rent sinks can also drive standard two-terminal LEDs, and
provide other general lighting functions (keypad lighting, fun
lighting, etc). The brightness of the LEDs can be adjusted
independently with an external resistor.
The LM27953 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 LM27953 is available in National’s chip-scale 18-bump
micro SMD package.
Features
n
Drives 4 Individual Common-Anode LEDs with up to
20mA each for a Main Display Backlight
n
Independent Resistor-Programmable Current Setting
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
20128001
November 2004
L
2004 National Semiconductor Corporation
DS201280
www.national.com
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LM27953 | White LED Driver with Four LED Current Sinks and 3/2x Switched Capacitor Boost |
| LM27953TL | White LED Driver with Four LED Current Sinks and 3/2x Switched Capacitor Boost |
| LM27 | SOT-23, 3 Degree Celcious Accurate, 120-150 Degree Celcious Factory Preset Thermostat |
| LM27CIM5-1HJ | SOT-23, 3 Degree Celcious Accurate, 120-150 Degree Celcious Factory Preset Thermostat |
| LM27CIM5-2HJ | SOT-23, 3 Degree Celcious Accurate, 120-150 Degree Celcious Factory Preset Thermostat |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM27953TLX/NOPB | 功能描述:IC LED DRVR WHT BCKLT 18USMD RoHS:是 類別:集成電路 (IC) >> PMIC - LED 驅(qū)動(dòng)器 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 恒定電流:- 恒定電壓:- 拓?fù)?PWM，切換式電容器（充電泵） 輸出數(shù):1 內(nèi)部驅(qū)動(dòng)器:是 類型 - 主要:背光 類型 - 次要:白色 LED 頻率:642kHz 電源電壓:2.7 V ~ 5.5 V 輸出電壓:5V 安裝類型:表面貼裝 封裝/外殼:10-VFDFN 裸露焊盤 供應(yīng)商設(shè)備封裝:10-VSON 包裝:剪切帶 (CT) 工作溫度:-30°C ~ 85°C 產(chǎn)品目錄頁面:1371 (CN2011-ZH PDF) 其它名稱:BD1603NUV-E2CT |
| LM2795BL | 制造商:Texas Instruments 功能描述:IC WLED DRIVER QUAD POWERWISE |
| LM2795BL/NOPB | 功能描述:IC LED DRVR WHT BCKLT 14USMD RoHS:是 類別:集成電路 (IC) >> PMIC - LED 驅(qū)動(dòng)器 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 恒定電流:- 恒定電壓:- 拓?fù)?PWM，切換式電容器（充電泵） 輸出數(shù):1 內(nèi)部驅(qū)動(dòng)器:是 類型 - 主要:背光 類型 - 次要:白色 LED 頻率:642kHz 電源電壓:2.7 V ~ 5.5 V 輸出電壓:5V 安裝類型:表面貼裝 封裝/外殼:10-VFDFN 裸露焊盤 供應(yīng)商設(shè)備封裝:10-VSON 包裝:剪切帶 (CT) 工作溫度:-30°C ~ 85°C 產(chǎn)品目錄頁面:1371 (CN2011-ZH PDF) 其它名稱:BD1603NUV-E2CT |
| LM2795BLX | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Current Regulated Switched Capacitor LED Supply with Analog and PWM Brightness Control |
| LM2795BLX/NOPB | 功能描述:IC LED DRVR WHT BCKLT 14MICROSMD RoHS:否 類別:集成電路 (IC) >> PMIC - LED 驅(qū)動(dòng)器 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 恒定電流:- 恒定電壓:- 拓?fù)?PWM，切換式電容器（充電泵） 輸出數(shù):1 內(nèi)部驅(qū)動(dòng)器:是 類型 - 主要:背光 類型 - 次要:白色 LED 頻率:642kHz 電源電壓:2.7 V ~ 5.5 V 輸出電壓:5V 安裝類型:表面貼裝 封裝/外殼:10-VFDFN 裸露焊盤 供應(yīng)商設(shè)備封裝:10-VSON 包裝:剪切帶 (CT) 工作溫度:-30°C ~ 85°C 產(chǎn)品目錄頁面:1371 (CN2011-ZH PDF) 其它名稱:BD1603NUV-E2CT |
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