| 型號 | 下載 訂購 | 功能描述 | 制造商 上傳企業(yè) | LOGO |
|---|---|---|---|---|
MAX1576 | 480mA White LED 1x/1.5x/2x Charge Pump for Backlighting and Camera Flash 文件:2.25896 Mbytes 頁數(shù):22 Pages | MAXIM 美信 | MAXIM | |
MAX1576 | 480mA白光LED 1倍/1.5倍/2倍電荷泵,用于背光和相機(jī)閃光燈 MAX1576電荷泵可驅(qū)動多達(dá)8個白色LED,具有恒定電流調(diào)節(jié)以實現(xiàn)統(tǒng)一的光強(qiáng)度。能夠以30mA的電流驅(qū)動每個主組(LED1-LED4) LED,用于背光。閃光燈組LED (LED5-LED8)是單獨控制的,并能夠以100mA驅(qū)動每個LED (或者總共400mA)。通過使用自適應(yīng)1倍/1.5倍/2倍電荷泵模式和超低壓差的電流調(diào)節(jié)器,MAX1576能夠在1節(jié)鋰電池的整個電壓范圍內(nèi)實現(xiàn)高效率。1MHz的固定頻率開關(guān)僅需使用非常小的外部元件,調(diào)節(jié)方案優(yōu)化于確保低EMI和低輸入紋波。\n\n MAX1576使用兩個外部電阻設(shè)置主LED和閃光燈LED的最大(100%)電流。使用四個控制 ? 驅(qū)動多達(dá)8個LED30mA/LED的驅(qū)動用于背光400mA的總驅(qū)動用于閃光燈\n? 整個Li+電池放電過程可實現(xiàn)85%的平均效率(PLED / PBATT)\n? 0.7%的典型LED電流匹配\n? 自適應(yīng)的1倍/1.5倍/2倍模式切換\n? 靈活的亮度控制單線,串行脈沖接口(5%至100%)2位(3電平)對數(shù)邏輯\n? 低輸入紋波和EMI\n? 0.1μA低關(guān)斷電流\n? 2.7V至5.5V的電源電壓范圍\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? 24引腳薄型QFN、4mm x 4mm封裝; | ADI 亞德諾 | ADI | |
480mA White LED 1x/1.5x/2x Charge Pump for Backlighting and Camera Flash 文件:2.25896 Mbytes 頁數(shù):22 Pages | MAXIM 美信 | MAXIM | ||
Package:24-WFQFN 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 24TQFN | AD 亞德諾 | AD | ||
Package:24-WFQFN 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 24TQFN | AD 亞德諾 | AD |
技術(shù)參數(shù)
- VIN (max)(V):
5.5
- Max. No. of LEDs:
8
- # LED Channels:
8
- Regulation Topology:
Charge Pump
- Battery Input:
1-Cell Li+
- LED Configuration:
Parallel
- ILED per Channel (max)(A):
0.4
- PWM Dimming Freq. (max)(kHz):
5
- Dimming Control:
Analog
- POUT(W):
2
- ICC (max)(mA):
6
- LED String Volt. (max)(V):
5
- Fxd. Freq.:
Yes
- Switching Frequency(kHz):
1000
- Features:
Internal Switch
- EV Kit Available:
Yes
- RoHS Available:
Yes
- Oper. Temp.(°C):
-40 to +85
- Package/ Pins:
TQFN/24
- Smallest Available Pckg. (max w/pins)(mm2):
16.8
- Budgetary Price (See Notes):
$2.76 @1k
| 供應(yīng)商 | 型號 | 品牌 | 批號 | 封裝 | 庫存 | 備注 | 價格 |
|---|---|---|---|---|---|---|---|
ADI |
25+ |
24-TQFN-4X4X0.75 |
5500 |
480mA白光LED 1倍/1.5倍/2倍電荷泵,用于背光和相機(jī)閃光燈 |
詢價 | ||
MAXIM |
25+ |
QFN |
2500 |
強(qiáng)調(diào)現(xiàn)貨,隨時查詢! |
詢價 | ||
MAXIM |
09+ |
QFN |
5500 |
原裝無鉛,優(yōu)勢熱賣 |
詢價 | ||
MAXIM |
06 |
TQFN-24 |
2460 |
詢價 | |||
MAXIM |
24+ |
(CSP) |
1500 |
原裝現(xiàn)貨假一罰十 |
詢價 | ||
MAXIM |
24+ |
QFN24 |
6980 |
原裝現(xiàn)貨,可開13%稅票 |
詢價 | ||
MAXIM |
24+ |
QFNPB |
103 |
詢價 | |||
MAX |
2016+ |
SMD |
3560 |
只做原裝,假一罰十,公司可開17%增值稅發(fā)票! |
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+ |
QFN24 |
5000 |
只做原裝公司現(xiàn)貨 |
詢價 |
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