| 型號 | 下載 訂購 | 功能描述 | 制造商 上傳企業(yè) | LOGO |
|---|---|---|---|---|
MAX1574 | 180mA, 1x/2x, White LED Charge Pump in 3mm x 3mm TDFN General Description The MAX1574 charge pump drives up to three white LEDs with regulated constant current for uniform intensity. By utilizing adaptive 1x/2x charge-pump modes and very-low-dropout current regulators, it achieves 180mA output drive capability and high efficiency over the 1-cell lit 文件:214.36 Kbytes 頁數(shù):9 Pages | MAXIM 美信 | MAXIM | |
MAX1574 | 180mA、1倍/2倍、白光LED電荷泵,3mm x 3mm TDFN封裝 MAX1574電荷泵能夠以恒定電流驅(qū)動多達(dá)3個白色LED,獲得均勻的亮度。利用自適應(yīng)1倍/2倍電荷泵模式和超低壓差電流調(diào)節(jié)器,可獲得180mA輸出驅(qū)動,并且在單節(jié)Li+電池的整個電壓范圍內(nèi)保持高效。固定開關(guān)頻率(1MHz)允許選用小巧的外部元件,經(jīng)過優(yōu)化的調(diào)節(jié)結(jié)構(gòu)保證低EMI和低輸入紋波。\n\n MAX1574用一個外部電阻設(shè)置滿量程(100%) LED電流。使能輸入(EN)可用作簡單的開/關(guān)控制或利用重復(fù)脈沖設(shè)置更低的LED電流,最低可降至5%。一旦建立了所需要的亮度,只要EN保持高電平,MAX1574即可保持恒定的LED電流。如果EN保持低電平的時間超過2ms, ? 最高180mA (每LED 60mA)驅(qū)動\n? 在Li+電池放電過程中保持83%的平均效率(PLED / PBATT)\n? 0.5% (典型值) LED電流匹配度\n? 自適應(yīng)1倍/2倍模式切換\n? 低輸入紋波和EMI\n? 通過單線串行脈沖接口可在5%至100%范圍內(nèi)調(diào)節(jié)LED電流\n? 0.1μA關(guān)斷電流\n? 2.7V至5.5V電源電壓范圍\n? 軟啟動限制浪涌電流\n? 輸出過壓保護(hù)\n? 熱關(guān)斷保護(hù)\n? 10引腳3mm x 3mm TDFN封裝; | ADI 亞德諾 | ADI | |
180mA, 1x/2x, White LED Charge Pump in 3mm x 3mm TDFN General Description The MAX1574 charge pump drives up to three white LEDs with regulated constant current for uniform intensity. By utilizing adaptive 1x/2x charge-pump modes and very-low-dropout current regulators, it achieves 180mA output drive capability and high efficiency over the 1-cell lit 文件:214.36 Kbytes 頁數(shù):9 Pages | MAXIM 美信 | MAXIM | ||
Package:10-WFDFN 裸露焊盤;包裝:卷帶(TR)剪切帶(CT)Digi-Reel? 得捷定制卷帶 類別:集成電路(IC) LED 驅(qū)動器 描述:IC LED DRV RGLT MULT-STEP 10TDFN | AD 亞德諾 | AD | ||
Package:10-WFDFN 裸露焊盤;包裝:管件 類別:集成電路(IC) LED 驅(qū)動器 描述:IC LED DRV RGLT MULT-STEP 10TDFN | AD 亞德諾 | AD |
技術(shù)參數(shù)
- VIN (max)(V):
5.5
- Max. No. of LEDs:
3
- # LED Channels:
3
- Regulation Topology:
Charge Pump
- Battery Input:
1-Cell Li+
- LED Configuration:
Parallel
- ILED per Channel (max)(A):
0.06
- Dimming Ratio (max):
20
- Dimming Control:
Serial Pulse
- POUT(W):
0.75
- ICC (max)(mA):
2
- LED String Volt. (max)(V):
5
- Fxd. Freq.:
Yes
- Switching Frequency(kHz):
1000
- Features:
Internal Switch
- Tags:
Camera Flash
- EV Kit Available:
Yes
- RoHS Available:
Yes
- Oper. Temp.(°C):
-40 to +85
- Package/ Pins:
TDFN/10
- Smallest Available Pckg. (max w/pins)(mm2):
9.6
- Budgetary Price (See Notes):
$1.51 @1k
| 供應(yīng)商 | 型號 | 品牌 | 批號 | 封裝 | 庫存 | 備注 | 價格 |
|---|---|---|---|---|---|---|---|
MAXIM |
23+ |
QFN |
3000 |
原裝正品假一罰百!可開增票! |
詢價 | ||
MAXIM/美信 |
23+ |
13000 |
原廠授權(quán)一級代理,專業(yè)海外優(yōu)勢訂貨,價格優(yōu)勢、品種 |
詢價 | |||
ADI |
25+ |
Thin Dual Flatpack No Leads, E |
5500 |
180mA、1倍/2倍、白光LED電荷泵,3mm x 3mm TDFN封裝 |
詢價 | ||
MAX |
17+ |
QFN |
6200 |
100%原裝正品現(xiàn)貨 |
詢價 | ||
MAXIM |
23+ |
QFN |
5000 |
原裝正品,假一罰十 |
詢價 | ||
MAXIM |
25+ |
QFN |
2850 |
強(qiáng)調(diào)現(xiàn)貨,隨時查詢! |
詢價 | ||
MAX |
25+ |
QFN |
3624 |
百分百原裝正品 真實公司現(xiàn)貨庫存 本公司只做原裝 可 |
詢價 | ||
MAXIM |
24+ |
QFN |
3900 |
原裝現(xiàn)貨假一罰十 |
詢價 | ||
MAXIM |
24+ |
QFN |
4652 |
公司原廠原裝現(xiàn)貨假一罰十!特價出售!強(qiáng)勢庫存! |
詢價 | ||
MAXIM |
24+ |
QFN |
3804 |
詢價 |
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