EV0021中文資料美國芯源數(shù)據(jù)手冊PDF規(guī)格書
EV0021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:
EV0021
- 制造商:
MPS
- 制造商全稱:
Monolithic Power Systems
- 功能描述:
High Efficiency White LED Driver
供應商 | 型號 | 品牌 | 批號 | 封裝 | 庫存 | 備注 | 價格 |
---|---|---|---|---|---|---|---|
EPSON |
23+ |
BGA |
3500 |
絕對全新原裝!現(xiàn)貨!特價!請放心訂購! |
詢價 | ||
EPSON/愛普生 |
23+ |
BGA |
6850 |
只做原廠原裝正品現(xiàn)貨!假一賠十! |
詢價 | ||
EPSON |
16+ |
QFP |
4000 |
進口原裝現(xiàn)貨/價格優(yōu)勢! |
詢價 | ||
臺產(chǎn) |
22+ |
DIP-8 |
5000 |
進口原裝!現(xiàn)貨庫存 |
詢價 | ||
EPSON/愛普生 |
23+ |
BGA |
15000 |
一級代理原裝現(xiàn)貨 |
詢價 | ||
EPSON |
23+ |
BGA |
3200 |
全新原裝、誠信經(jīng)營、公司現(xiàn)貨銷售 |
詢價 | ||
EPSON/愛普生 |
23+ |
BGA |
3000 |
一級代理原廠VIP渠道,專注軍工、汽車、醫(yī)療、工業(yè)、 |
詢價 | ||
EV |
24+ |
59025 |
詢價 | ||||
EPSON/愛普生 |
23+ |
BGA |
10000 |
公司只做原裝正品 |
詢價 | ||
EPSON |
0519+ |
BGA |
1600 |
一級代理,專注軍工、汽車、醫(yī)療、工業(yè)、新能源、電力 |
詢價 |