參數(shù)資料
型號(hào)： LM27952SDX
廠商： NATIONAL SEMICONDUCTOR CORP
元件分類： 顯示驅(qū)動(dòng)器
英文描述： White LED Adaptive 1.5X/1X Switched Capacitor Current Driver
中文描述： LED DISPLAY DRIVER, PDSO14
封裝： 4 X 3 MM, 0.80 MM HEIGHT, LLP-14
文件頁(yè)數(shù)： 2/8頁(yè)
文件大小： 521K
代理商： LM27952SDX
Connection Diagram
LM27952
14-pin No-Pullback Leadless Leadframe Package (LLP-14)
4mm x 3mm x 0.8mm
NS Package Number SDA14A
20148002
Pin Description
Pin
1
2
3
4
5
6
7
8
Name
C2+
V
OUT
C1+
D4
D3
D2
D1
I
SET
Description
Flying Capacitor C2 Connection
Pre-Regulated Charge Pump Output
Flying Capacitor C1 Connection
Regulated Current Sink Input.
Regulated Current Sink Input.
Regulated Current Sink Input.
Regulated Current Sink Input.
Current Set Input. Placing a resistor (R
SET
) between this pin and GND sets
the LED current for all the LEDs. LED Current = 200 x (1.25V ÷ R
SET
).
Enable Logic Input Pin. Logic Low = Shut Down, Logic High = Enabled. There
is a 150k
(typ.) resistor connected internally between the EN pin and GND.
Current Sink Modulation Logic Input Pin. Logic Low = Off, Logic High = On.
Applying a Pulse Width Modulated (PWM) signal to this pin allows the
regulated current sinks to be modulated without shutting down the internal
Charge Pump and the V
OUT
node.
Input Supply Range: 3.0V to 5.5V.
Flying Capacitor C2 Connection.
Power Supply Ground Connection.
Flying Capacitor C1 Connection.
9
EN
10
PWM
11
12
13
14
V
IN
C2-
GND
C1-
Ordering Information
Order Number
Package Description
Package Marking
Supplied as Tape and Reel
(Units)
1000
4500
LM27952SD
LM27952SDX
No-Pullback
LLP-14
XXXXX
YYYYY = D005B
L
www.national.com
2
相關(guān)PDF資料
PDF描述
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LM27961TL Dual-Display White LED Driver with 3/2x Switched Capacitor Boost
LM27961TLX Dual-Display White LED Driver with 3/2x Switched Capacitor Boost
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LM27952SDX/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
LM27953 制造商:NSC 制造商全稱:National Semiconductor 功能描述:White LED Driver with Four LED Current Sinks and 3/2x Switched Capacitor Boost
LM27953TL 制造商:Rochester Electronics LLC 功能描述: 制造商:Texas Instruments 功能描述:IC LED DRIVER WHITE SMD 27953
LM27953TL/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(pán) 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(yè)面:1371 (CN2011-ZH PDF) 其它名稱:BD1603NUV-E2CT
LM27953TLX 制造商:NSC 制造商全稱:National Semiconductor 功能描述:White LED Driver with Four LED Current Sinks and 3/2x Switched Capacitor Boost
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