SC4539EVB中文資料SEMTECH數(shù)據(jù)手冊PDF規(guī)格書
SC4539EVB規(guī)格書詳情
Description
The SC4539 is designed to regulate current for a series string of white LEDs in LCD backlighting applications where small size and high efficiency are priorities. This device integrates an 800kHz current-mode PWM boost converter and a 30mA programmable low dropout current sink regulator.
Features
■ Input voltage range — 2.8V to 5.5V
■ Programmable LED current up to 30mA
■ Current-mode PWM control — 800kHz
■ Soft-start to reduce in-rush current
■ PWM dimming — 100Hz to 50kHz
■ PWM dimming at ISET — Analog and filtered
■ Over-voltage protection — 22V (minimum)
■ Under-voltage lockout (UVLO)
■ Thermal shutdown
■ Shutdown current — <0.1μA (typical)
■ Ultra-thin package — 2mm x 2mm x 0.6mm
■ Lead-free package, WEEE and RoHS compliant
Applications
■ DSLR, DSC, and Video Cameras
■ Cellular handsets
■ Portable media players
■ Personal navigation systems
■ Satellite radio
■ Handheld video games
產(chǎn)品屬性
- 型號：
SC4539EVB
- 制造商：
SEMTECH
- 制造商全稱：
Semtech Corporation
- 功能描述：
High Effi ciency Boost Converter for up to 6 LEDS
| 供應(yīng)商 | 型號 | 品牌 | 批號 | 封裝 | 庫存 | 備注 | 價格 |
|---|---|---|---|---|---|---|---|
SEMTECH |
23+ |
DFN8(2x2) |
7350 |
現(xiàn)貨供應(yīng),當天可交貨!免費送樣,原廠技術(shù)支持!!! |
詢價 | ||
SEMTECH |
2018+ |
SOP/DIPQFP |
1121 |
原裝假一賠十 |
詢價 | ||
SEMTECH |
500 |
TSOP |
37 |
1907+ |
詢價 | ||
SEMTECH |
2023+ |
TSSOP28 |
80000 |
一級代理/分銷渠道價格優(yōu)勢 十年芯程一路只做原裝正品 |
詢價 | ||
SEMTECH |
2020+ |
TSOP |
80000 |
只做自己庫存,全新原裝進口正品假一賠百,可開13%增 |
詢價 | ||
SEMTECH |
22+ |
QFN |
8500 |
只做原裝正品假一賠十!正規(guī)渠道訂貨! |
詢價 | ||
SEMTECH |
2016+ |
TSSOP28 |
4303 |
公司只做原裝,假一罰十,可開17%增值稅發(fā)票! |
詢價 | ||
SEMTECH |
2018+ |
TSSOP-28 |
30617 |
一級代理全新原裝熱賣 |
詢價 | ||
SEMTECH |
23+ |
TSSOP28 |
30000 |
代理全新原裝現(xiàn)貨,價格優(yōu)勢 |
詢價 | ||
SEMTECH |
UFDFN-8 |
9833 |
集團化配單-有更多數(shù)量-免費送樣-原包裝正品現(xiàn)貨-正規(guī) |
詢價 |
