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參數資料
| 型號： | LP5522 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | Programmable LED Driver |
| 中文描述： | 可編程LED驅動器 |
| 文件頁數： | 1/14頁 |
| 文件大小： | 219K |
| 代理商： | LP5522 |
June 2007
LP5522
Programmable LED Driver
General Description
The LP5522 is a simple single wire programmable LED con-
troller in six bump micro SMD package. It provides constant
current flow through high side driver. Output current can be
set from 1 mA to 20 mA by using an external resistor on the
ISET pin. If no external resistor is used, output current is set
to 5 mA default current. The LP5522 is controlled using only
one signal. The signal controls either directly the LED driver
or it launches previously programmed blinking sequence.
The LP5522 works autonomously without a clock signal from
the master device. Very low LED driver headroom voltage
makes possible to use supply voltages close to LED forward
voltage. Current consumption of the LP5522 is minimized
when LED is turned off and once controller is disabled all
supporting functions are also shut down. Very small micro
SMD package together with minimum number of external
components is a best fit for handheld devices.
Features
■
Programmable blinking sequence
—
1 to 3 programmable pulses
—
1 ms to 255 ms LED on time
—
10 ms to 2500 ms LED off time
—
Single or continuous run of programmed blinking
sequence
■
Constant current high side output driver
■
Adjustable current with external resistor
■
0.2 uA typical shutdown current
■
Autonomous operation without external clock
■
Micro SMD-6 package with 0.4 mm pitch:
1.215 mm x 0.815 mm x 0.6 mm (LxWxH)
Applications
■
Indicator lights
■
Phone cosmetics
■
Toys
Typical Application
20217201
2007 National Semiconductor Corporation
202172
www.national.com
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PDF描述 |
|---|---|
| LP5522TM | Programmable LED Driver |
| LP5522TMX | Programmable LED Driver |
| LP55271TL | Tiny LED Driver for Camera Flash and 4 LEDs with I2C Programmability, Connectivity Test and Audio Synchronization |
| LP55271TLX | Tiny LED Driver for Camera Flash and 4 LEDs with I2C Programmability, Connectivity Test and Audio Synchronization |
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相關代理商/技術參數 |
參數描述 |
|---|---|
| LP5522TM | 制造商:Texas Instruments 功能描述:LED DRVR 1Segment 3.3V/5V 6-Pin uSMD T/R |
| LP5522TM/NOPB | 功能描述:LED照明驅動器 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: 安裝風格:SMD/SMT 封裝 / 箱體:SO-16N |
| LP5522TMEV | 功能描述:電源管理IC開發工具 LP5522TMEV EVAL BOARD 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 |
| LP5522TMX | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Programmable LED Driver |
| LP5522TMX/NOPB | 功能描述:LED照明驅動器 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: 安裝風格:SMD/SMT 封裝 / 箱體:SO-16N |
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