MP1521EK中文資料美國芯源數(shù)據(jù)手冊(cè)PDF規(guī)格書
MP1521EK規(guī)格書詳情
General Description
The MP1521 is a constant-current Boost Regulator. This IC has three individual current-sensing feedbacks, which are ideal for driving multiple strings of series connected LEDs. The OLS pin is designed for detecting loose or open LED connections.
The IC uses a peak current, constant minimum off-time architecture. The feedback pins measure voltage across sense resistors in series with the LED strings. When supplying a bias current of 20mA, the voltage drop across the sense resistor is only 0.4V to minimize power loss. Either a DC voltage or a PWM signal at the BRT/PWM input can control the LED brightness.
The MP1521 has an on board power MOSFET switch that is protected by current limit, open load shutdown, thermal shutdown, and under voltage lockout.
Features
■ On Board Power MOSFET
■ Drive 9 White LEDs from 2.7V Input
■ Drive 15 White LEDs from 5V Input
■ Up to 90 Efficiency
■ Over 80mA Output Current Capacity
■ Open Load Shutdown
■ Low Current Sensing Feedback Voltage
■ Up to 3 String Current Sensing Feedback
■ Analog and Digital PWM Brightness Control
■ UVLO, Thermal Shutdown
■ Soft Start
■ Internal Current Limit
■ Available in Compact MSOP10 and Tiny 3 mm x 3 mm QFN16 Package
■ Evaluation Boards Available
Applications
■ Handheld Computers, Cell phones, PDAs, Digital and Video Cameras, Small LCD Displays
■ Li Ion and NiMH Battery Applications
產(chǎn)品屬性
- 型號(hào):
MP1521EK
- 制造商:
MPS
- 制造商全稱:
Monolithic Power Systems
- 功能描述:
High Efficiency White LED Driver
供應(yīng)商 | 型號(hào) | 品牌 | 批號(hào) | 封裝 | 庫存 | 備注 | 價(jià)格 |
---|---|---|---|---|---|---|---|
MPS |
2016+ |
MSOP-10 |
3000 |
本公司只做原裝,假一罰十,可開17%增值稅發(fā)票! |
詢價(jià) | ||
MPS |
2020+ |
MSOP10 |
80000 |
只做自己庫存,全新原裝進(jìn)口正品假一賠百,可開13%增 |
詢價(jià) | ||
MPS |
23+ |
TSSOP10 |
20000 |
原廠原裝正品現(xiàn)貨 |
詢價(jià) | ||
MPS |
20+ |
MSOP-10 |
2960 |
誠信交易大量庫存現(xiàn)貨 |
詢價(jià) | ||
MPS |
2016+ |
MSOP10 |
6528 |
只做進(jìn)口原裝現(xiàn)貨!假一賠十! |
詢價(jià) | ||
MPS |
2018+ |
MSOP-10 |
25000 |
一級(jí)專營品牌全新原裝熱賣 |
詢價(jià) | ||
MPS |
標(biāo)準(zhǔn)封裝 |
57218 |
一級(jí)代理原裝正品現(xiàn)貨期貨均可訂購 |
詢價(jià) | |||
MPS |
18+ |
MSOP-10 |
85600 |
保證進(jìn)口原裝可開17%增值稅發(fā)票 |
詢價(jià) | ||
MPS |
22+ |
TSSOP |
2987 |
絕對(duì)全新原裝現(xiàn)貨供應(yīng)! |
詢價(jià) | ||
MPS |
23+ |
TSSOP-8 |
7566 |
原廠原裝 |
詢價(jià) |