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MAX8821集成電路(IC)的LED驅(qū)動(dòng)器規(guī)格書PDF中文資料

MAX8821
廠商型號

MAX8821

參數(shù)屬性

MAX8821 封裝/外殼為28-WFQFN 裸露焊盤;包裝為卷帶(TR);類別為集成電路(IC)的LED驅(qū)動(dòng)器;MAX8821應(yīng)用范圍:背光;產(chǎn)品描述:IC LED DRVR RGLTR I2C 28TQFN

功能描述

White LED Charge Pump with Mono Class D Audio Amp and Dual LDO

封裝外殼

28-WFQFN 裸露焊盤

文件大小

902.7 Kbytes

頁面數(shù)量

29

生產(chǎn)廠商 Maxim Integrated Products
企業(yè)簡稱

Maxim美信

中文名稱

美信半導(dǎo)體官網(wǎng)

原廠標(biāo)識
數(shù)據(jù)手冊

下載地址一下載地址二到原廠下載

更新時(shí)間

2025-2-10 11:13:00

MAX8821規(guī)格書詳情

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 LED current is controlled by an I2C interface and adjusts from 0.1mA to 25.6mA per LED into 32 pseudo-logarithmic steps. Independent voltages for each LED maximize efficiency even with large LED forward voltage (VF) mismatch. An internal temperature derating function reduces the current above +40°C to protect the LEDs.

Features

? White LED Inverting Charge Pump

??? Independent Adaptive Current Regulators for Each LED

??? 6 Low-Dropout Current Regulators

??? Flexible I2C Dimming Control for Each LED

??? Ramp-Up/Down, Current Control for Each LED

??? Low 70μA (typ) Quiescent Current

??? TA Derating Function Protects LEDs

? Mono 2W Class D Loudspeaker Amplifier

??? 85 Efficiency (RL = 8Ω, POUT = 600mW)

??? Low 0.05 THD+N at 1kHz

??? High 65dB PSRR at 1kHz

??? Fully Differential Inputs

??? -3dB to +24dB Gain Settings in 3dB Steps

??? Integrated Click-and-Pop Suppression

??? Low Quiescent Current

? Dual Low-Noise LDO

??? 45μVRMS Output Noise, 70dB PSRR

??? Flexible I2C-Controlled Output Voltages

??? 200mA and 300mA Output Current Drive

Applications

??? Cell Phones and Smartphones

??? PDAs, Digital Cameras, Camcorders

??? MP3 Players, GPS Devices

產(chǎn)品屬性

  • 產(chǎn)品編號:

    MAX8821ETI+T

  • 制造商:

    Analog Devices Inc./Maxim Integrated

  • 類別:

    集成電路(IC) > LED 驅(qū)動(dòng)器

  • 包裝:

    卷帶(TR)

  • 類型:

    DC DC 穩(wěn)壓器

  • 拓?fù)洌?/span>

    開關(guān)電容器(充電泵)

  • 內(nèi)部開關(guān):

  • 輸出數(shù):

    6 + 2LDOs

  • 電壓 - 供電(最低):

    2.7V

  • 電壓 -?供電(最高):

    5.5V

  • 電流 - 輸出/通道:

    25.6mA

  • 頻率:

    1MHz

  • 調(diào)光:

    I2C

  • 應(yīng)用:

    背光

  • 工作溫度:

    -40°C ~ 85°C(TA)

  • 安裝類型:

    表面貼裝型

  • 封裝/外殼:

    28-WFQFN 裸露焊盤

  • 供應(yīng)商器件封裝:

    28-TQFN(4x4)

  • 描述:

    IC LED DRVR RGLTR I2C 28TQFN

供應(yīng)商 型號 品牌 批號 封裝 庫存 備注 價(jià)格
Maxim
20+
na
65790
原裝優(yōu)勢主營型號-可開原型號增稅票
詢價(jià)
MAXIM
2020+
TQFN16
80000
只做自己庫存,全新原裝進(jìn)口正品假一賠百,可開13%增
詢價(jià)
MAXIM/美信
23+
QFN28
13000
原廠授權(quán)一級代理,專業(yè)海外優(yōu)勢訂貨,價(jià)格優(yōu)勢、品種
詢價(jià)
N/A
2021+
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(jià)
MaximIntegrated
23+
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(jià)
MAXIM
2339+
QFN-16
4652
公司原廠原裝現(xiàn)貨假一罰十!特價(jià)出售!強(qiáng)勢庫存!
詢價(jià)
MAXIM
2023+
QFN
50000
原裝現(xiàn)貨
詢價(jià)
MAXIM
23+
提供BOM配單服務(wù)
35500
原裝正品現(xiàn)貨庫存QQ:2987726803
詢價(jià)
Maxim
22+
28TQFN
9000
原廠渠道,現(xiàn)貨配單
詢價(jià)
Maxim
1931+
N/A
567
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