| 型號 | 下載 訂購 | 功能描述 | 制造商 上傳企業(yè) | LOGO |
|---|---|---|---|---|
MAX1570 | White LED Current Regulator with 1x/1.5x High-Efficiency Charge Pump General Description The MAX1570 fractional charge pump drives up to five white LEDs with regulated constant current for uniform intensity. The MAX1570 maintains the highest possible efficiency over the full 1-cell lithium-ion (Li+) battery input voltage range by utilizing a 1x/1.5x fractional cha 文件:358.59 Kbytes 頁數(shù):11 Pages | MAXIM 美信 | MAXIM | |
MAX1570 | 白光LED電流調(diào)節(jié)器,帶有1倍/1.5倍高效率電荷泵 MAX1570分數(shù)型電荷泵能夠以恒定電流驅(qū)動多達5只白色LED,獲得均勻的亮度。MAX1570利用1倍/1.5倍分數(shù)型電荷泵和低壓差電流調(diào)節(jié)器,在整個Li+電池供電電壓范圍內(nèi)保持最高的效率。MAX1570工作在1MHz固定頻率,允許選用小巧的外部元件。經(jīng)過優(yōu)化的電流調(diào)節(jié)結(jié)構(gòu)保證低EMI和低輸入紋波。\n\n 利用一個外部電阻可以設置滿量程LED電流,兩個數(shù)字輸入控制開/關(guān)或選擇3級亮度中的一級。脈寬調(diào)制(PWM)信號也可以用來調(diào)節(jié)LED的亮度。\n\n MAX1570采用16引腳4mm x 4mm的薄型QFN封裝(最高0.8mm)。\n\n ? 優(yōu)異的0.3% LED間電流匹配\n? 30mA/LED驅(qū)動能力\n? 專有的1倍/1.5倍超高效率模式\n? 低輸入紋波和EMI\n? 無需鎮(zhèn)流電阻\n? 數(shù)字輸入或PWM LED亮度控制\n? 0.1μA關(guān)斷電流\n? 2.7V至5.5V輸入電壓范圍\n? 軟啟動限制浪涌電流\n? 過熱關(guān)斷保護\n? 無需外部電感、肖特基二極管或齊納二極管\n? 小巧的16引腳、4mm x 4mm薄型QFN封裝; | ADI 亞德諾 | ADI | |
White LED Current Regulator with 1x/1.5x High-Efficiency Charge Pump General Description The MAX1570 fractional charge pump drives up to five white LEDs with regulated constant current for uniform intensity. The MAX1570 maintains the highest possible efficiency over the full 1-cell lithium-ion (Li+) battery input voltage range by utilizing a 1x/1.5x fractional cha 文件:358.59 Kbytes 頁數(shù):11 Pages | MAXIM 美信 | MAXIM | ||
Package:16-WQFN 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 RGLTR PWM 30MA 16TQFN | AD 亞德諾 | AD | ||
Package:16-WQFN 裸露焊盤;包裝:卷帶(TR) 類別:集成電路(IC) LED 驅(qū)動器 描述:IC LED DRV RGLTR PWM 30MA 16TQFN | AD 亞德諾 | AD |
技術(shù)參數(shù)
- VIN (max)(V):
5.5
- Max. No. of LEDs:
5
- # LED Channels:
5
- Regulation Topology:
Charge Pump
- Battery Input:
1-Cell Li+
- LED Configuration:
Parallel
- ILED per Channel (max)(A):
0.03
- PWM Dimming Freq. (max)(kHz):
5
- Dimming Control:
Digital
- POUT(W):
0.7
- ICC (max)(mA):
3.5
- LED String Volt. (max)(V):
5
- Fxd. Freq.:
Yes
- Switching Frequency(kHz):
1000
- Features:
Internal Switch
- Tags:
Backlight
- EV Kit Available:
Yes
- RoHS Available:
Yes
- Oper. Temp.(°C):
-40 to +85
- Package/ Pins:
TQFN/16
- Smallest Available Pckg. (max w/pins)(mm2):
16.8
- Budgetary Price (See Notes):
$2.17 @1k
| 供應商 | 型號 | 品牌 | 批號 | 封裝 | 庫存 | 備注 | 價格 |
|---|---|---|---|---|---|---|---|
ADI |
25+ |
16-LFCSP-4X4X0.75 |
5500 |
白光LED電流調(diào)節(jié)器,帶有1倍/1.5倍高效率電荷泵 |
詢價 | ||
MAX |
24+ |
QFN |
63 |
詢價 | |||
MAXIM |
09+ |
QFN |
5500 |
原裝無鉛,優(yōu)勢熱賣 |
詢價 | ||
MAX |
05+ |
原廠原裝 |
4351 |
只做全新原裝真實現(xiàn)貨供應 |
詢價 | ||
MAXIM |
24+ |
THNQFN |
2000 |
全新原裝環(huán)保 |
詢價 | ||
MAXIM |
24+ |
QFN |
4652 |
公司原廠原裝現(xiàn)貨假一罰十!特價出售!強勢庫存! |
詢價 | ||
MAXIM |
24+ |
QFN |
5000 |
只做原裝公司現(xiàn)貨 |
詢價 | ||
MAXIM |
17+ |
QFN20 |
27280 |
只做全新進口原裝,現(xiàn)貨庫存 |
詢價 | ||
BQ |
23+ |
SOP |
12000 |
全新原裝假一賠十 |
詢價 | ||
MAXIM |
22+ |
QFN |
5000 |
原裝現(xiàn)貨庫存.價格優(yōu)勢!! |
詢價 |
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