| 型號 | 下載 訂購 | 功能描述 | 制造商 上傳企業(yè) | LOGO |
|---|---|---|---|---|
MAX8821 | White LED Charge Pump with Mono Class D Audio Amp and Dual LDO General Description The MAX8821 integrates a charge pump for white LEDs, an audio loudspeaker amplifier, and two low noise LDOs controlled by an I2C control interface. The high-efficiency, adaptive-mode inverting charge pump drives up to six LEDs with constant current for uniform brightness. The 文件:902.7 Kbytes 頁數(shù):29 Pages | MAXIM 美信 | MAXIM | |
MAX8821 | Fully Assembled and Tested 文件:231.99 Kbytes 頁數(shù):14 Pages | MAXIM 美信 | MAXIM | |
MAX8821 | 白光LED電荷泵,具有單聲道D類音頻放大器和兩路LDO MAX8821集成了白光LED電荷泵、音頻揚聲器放大器以及兩路低噪聲LDO,由I2C接口控制。高效自適應模式反相電荷泵能夠以固定電流驅(qū)動6只LED,保持均勻亮度。LED電流由I2C接口控制,每個LED的電流可以在0.1mA至25.6mA范圍內(nèi)以偽對數(shù)形式分32級進行設置。由于可獨立調(diào)節(jié)每個LED的電壓,即使在LED正向電壓(VF)不匹配的情況下也能夠保持最高效率。內(nèi)部溫度降額功能可以在溫度高于+40°C時降低電流,提供有效的LED保護。\n高效單聲道D類音頻放大器在5V供電時能夠為4Ω揚聲器提供2W功率。放大器采用專有的無濾波有源輻射抑制(AEL)技術(shù)。AEL可以避免傳統(tǒng)D類放大器中感性負載所 ? 白光LED反相電荷泵 \n? 6路低壓差電流調(diào)節(jié)器 \n? 每個LED電流提供斜坡升/降控制 \n? TA降額功能為LED提供有效保護 \n? 效率高達85% (RL = 8Ω, POUT = 600mW) \n? 1kHz時PSRR高達65dB \n? -3dB至+24dB增益設置范圍,3dB步長 \n? 低靜態(tài)電流 \n? 輸出噪聲45μVRMS,70dB PSRR \n? 200mA、300mA輸出電流驅(qū)動; | ADI 亞德諾 | ADI | |
White LED Charge Pump with Mono Class D Audio Amp and Dual LDO General Description The MAX8821 integrates a charge pump for white LEDs, an audio loudspeaker amplifier, and two low noise LDOs controlled by an I2C control interface. The high-efficiency, adaptive-mode inverting charge pump drives up to six LEDs with constant current for uniform brightness. The 文件:902.7 Kbytes 頁數(shù):29 Pages | MAXIM 美信 | MAXIM | ||
Fully Assembled and Tested 文件:231.99 Kbytes 頁數(shù):14 Pages | MAXIM 美信 | MAXIM | ||
Fully Assembled and Tested 文件:231.99 Kbytes 頁數(shù):14 Pages | MAXIM 美信 | MAXIM | ||
Package:28-WFQFN 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 DRVR RGLTR I2C 28TQFN | AD 亞德諾 | AD | ||
Package:28-WFQFN 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 DRVR RGLTR I2C 28TQFN | AD 亞德諾 | AD | ||
包裝:盒 功能:串行器,解串器(SerDes) 類別:開發(fā)板,套件,編程器 評估和演示板及套件 描述:KIT EVAL FOR MAX8821 | AD 亞德諾 | AD |
技術(shù)參數(shù)
- Tags:
Backlight
- Battery Input:
1-Cell Li+
- Regulation Topology:
Charge Pump
- Max. No. of LEDs:
6
- LED Channels:
4
- LED Configuration:
Parallel
- Iled per Channel(max)(A):
0.025
- Dimming Ratio(max):
256
- Dimming Control:
I2C Serial
- Pout(W):
0.6
- Vin(min)(V):
2.7
- Vin(max)(V):
5.5
- Icc(max)(mA):
0.12
- LED String Volt.(max)(V):
5.5
- Fxd. Freq.:
Yes
- Oper. Freq.(kHz):
1000
- Features:
Internal Switch
- RoHS Available:
Yes
- Oper. Temp.(°C):
-40 to +85
- Package/Pins:
TQFN/28
- Smallest Available Pckg.(max w/pins)(mm2):
16.8
- Budgetary Price(See Notes):
$3.02 @1k
| 供應商 | 型號 | 品牌 | 批號 | 封裝 | 庫存 | 備注 | 價格 |
|---|---|---|---|---|---|---|---|
MAXIM |
13+ |
QFN |
3738 |
原裝分銷 |
詢價 | ||
Maxim |
1716+ |
? |
11520 |
只做原裝進口,假一罰十 |
詢價 | ||
MaximIntegrated |
24+ |
28-TQFN(4x4) |
66800 |
原廠授權(quán)一級代理,專注汽車、醫(yī)療、工業(yè)、新能源! |
詢價 | ||
Maxim |
20+ |
na |
65790 |
原裝優(yōu)勢主營型號-可開原型號增稅票 |
詢價 | ||
MAXIM/美信 |
24+ |
SSOPQFN |
25050 |
原廠支持公司優(yōu)勢現(xiàn)貨 |
詢價 | ||
Maxim Integrated |
24+ |
28-WFQFN 裸露焊盤 |
39500 |
一級代理/放心采購 |
詢價 | ||
Maxim |
1931+ |
N/A |
567 |
加我qq或微信,了解更多詳細信息,體驗一站式購物 |
詢價 | ||
N/A |
2447 |
SMD |
100500 |
一級代理專營品牌!原裝正品,優(yōu)勢現(xiàn)貨,長期排單到貨 |
詢價 | ||
MAXIM |
25+ |
QFN-28 |
1001 |
就找我吧!--邀您體驗愉快問購元件! |
詢價 | ||
Maxim |
22+ |
28TQFN |
9000 |
原廠渠道,現(xiàn)貨配單 |
詢價 |
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