| 型號 | 下載 訂購 | 功能描述 | 制造商 上傳企業(yè) | LOGO |
|---|---|---|---|---|
MAX8822 | Ultra-Efficient Negative Charge-Pump LED Driver with Dual LDOs in 3mm x 3mm Thin QFN General Description The MAX8822 drives up to four white light-emitting diodes (LEDs) with regulated constant current for display backlighting in cell phones, digital cameras, PDAs, and other handheld devices. By utilizing a proprietary negative 0.5x inverting charge pump and innovative independen 文件:251.83 Kbytes 頁數(shù):15 Pages | MAXIM 美信 | MAXIM | |
MAX8822 | 超高效負壓電荷泵LED驅動器,帶有雙LDO,3mm x 3mm薄型QFN封裝 MAX8822能夠以穩(wěn)定電流驅動4只白光二極管(LED),用于手機、數(shù)碼相機、PDA及其它手持設備顯示屏的背光驅動。通過專有的負壓0.5x反相電荷泵和創(chuàng)新的獨立自適應低壓差(LDO)電流調節(jié)器,器件可在單節(jié)Li+電池的整個輸入電壓范圍內保持極高的轉換效率,即使在LED VF失配較大的情況下。1MHz固定開關頻率允許使用微小的外部元件。器件的調節(jié)環(huán)路經(jīng)過優(yōu)化,可確保低EMI和低輸入紋波。芯片內還集成了兩路輸出電壓可調的200mA、低噪聲、高電源抑制比(PSRR)的LDO,為相機模塊或其它設備供電。\n\n MAX8822提供一個單線串行脈沖控制接口,用于設置LED電流和LDO的輸出電壓 ? 可驅動最多4只LED的高效電荷泵\n? 24mA至0.1mA亮度調節(jié)范圍\n? 低至65μA的靜態(tài)電流(典型值)\n? 雙路200mA低噪聲、高PSRR LDO\n? 10kHz下,PSRR高達60dB\n? 靈活的單線亮度調節(jié)及LDO輸出電壓控制\n? 軟啟動浪涌電流限制\n? 微型16引腳、3mm x 3mm、薄型QFN封裝(最大高度0.8mm),帶有裸焊盤; | ADI 亞德諾 | ADI | |
Ultra-Efficient Negative Charge-Pump LED Driver with Dual LDOs in 3mm x 3mm Thin QFN General Description The MAX8822 drives up to four white light-emitting diodes (LEDs) with regulated constant current for display backlighting in cell phones, digital cameras, PDAs, and other handheld devices. By utilizing a proprietary negative 0.5x inverting charge pump and innovative independen 文件:251.83 Kbytes 頁數(shù):15 Pages | MAXIM 美信 | MAXIM | ||
Package:16-WFQFN 裸露焊盤;包裝:卷帶(TR) 類別:集成電路(IC) LED 驅動器 描述:IC LED DRV RGLTR PWM 24MA 16TQFN | AD 亞德諾 | AD | ||
Package:16-WFQFN 裸露焊盤;包裝:卷帶(TR) 類別:集成電路(IC) LED 驅動器 描述:IC LED DRV RGLTR PWM 24MA 16TQFN | AD 亞德諾 | AD |
技術參數(shù)
- VIN (max)(V):
5.5
- Max. No. of LEDs:
4
- # LED Channels:
4
- Regulation Topology:
Charge Pump
- Battery Input:
1-Cell Li+
- LED Configuration:
Parallel
- ILED per Channel (max)(A):
0.024
- Dimming Ratio (max):
240
- Dimming Control:
Serial Pulse
- POUT(W):
0.4
- ICC (max)(mA):
1.4
- LED String Volt. (max)(V):
5.5
- 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):
9.6
- Budgetary Price (See Notes):
$1.82 @1k
| 供應商 | 型號 | 品牌 | 批號 | 封裝 | 庫存 | 備注 | 價格 |
|---|---|---|---|---|---|---|---|
ADI |
25+ |
EVALUATION BOARDS,16-LFCSP-3X3 |
5500 |
超高效負壓電荷泵LED驅動器,帶有雙LDO,3mm x 3mm薄型QFN封裝 |
詢價 | ||
MAXIM |
24+ |
QFN-16 |
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 |
13+ |
1615 |
原裝分銷 |
詢價 | |||
MAXIM |
22+ |
QFN-16 |
8200 |
原裝現(xiàn)貨庫存.價格優(yōu)勢!! |
詢價 | ||
MaximIntegrated |
24+ |
16-TQFN(3x3) |
66800 |
原廠授權一級代理,專注汽車、醫(yī)療、工業(yè)、新能源! |
詢價 | ||
Maxim |
20+ |
原裝 |
65790 |
原裝優(yōu)勢主營型號-可開原型號增稅票 |
詢價 | ||
Maxim Integrated |
24+ |
16-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 | ||
MAXIM |
25+ |
QFN-16 |
1001 |
就找我吧!--邀您體驗愉快問購元件! |
詢價 | ||
Maxim |
22+ |
16TQFN |
9000 |
原廠渠道,現(xiàn)貨配單 |
詢價 |
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