MAX8645X集成電路（IC）的LED驅(qū)動器規(guī)格書PDF中文資料
| 廠商型號 |
MAX8645X |
| 參數(shù)屬性 | MAX8645X 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)動器；MAX8645X應(yīng)用范圍：背光，照相機閃光燈；產(chǎn)品描述：IC LED DRV RGLTR SGL WR 28TQFN |
| 功能描述 | 1x/1.5x/2x White LED Charge Pumps with Two LDOs in 4mm x 4mm TQFN |
| 封裝外殼 | 28-WFQFN 裸露焊盤 |
| 文件大小 |
310.54 Kbytes |
| 頁面數(shù)量 |
15 頁 |
| 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 | |
| 更新時間 | 2025-1-17 13:33:00 |
MAX8645X規(guī)格書詳情
General Description
The MAX8645X/MAX8645Y charge pumps drive up to eight white LEDs with regulated constant current for uniform intensity. The main group of LEDs (M1–M6) can be driven up to 30mA per LED for backlighting. The flash group of LEDs (F1 and F2) is independently controlled and can be driven up to 200mA per LED (or 400mA total). Two 200mA LDOs are on-board to provide power for camera functions. The LDOs’ output voltages are pin programmable to meet different camera-module requirements. The MAX8645X and MAX8645Y differ only in LDO output voltages. By utilizing adaptive 1x/1.5x/2x charge pump modes and very-low-dropout current regulators, the MAX8645X/MAX8645Y achieve high efficiency over the full 1-cell lithium-battery voltage range. The 1MHz fixed-frequency switching allows for tiny external components, and the regulation scheme is optimized to ensure low EMI and low input ripple.
The MAX8645X/MAX8645Y are available in a 28-pin TQFN, 4mm x 4mm (0.8mm max height) lead-free package.
Features
? Power Up to Eight LEDs
?? Up to 30mA/LED Drive for Backlight
?? Up to 400mA Total Drive for Flash
? Two Internal Low-Noise 200mA LDOs
? 94 Max/85 Avg Efficiency (PLED/PBATT) over Li+
?? Battery Discharge
? 0.2 Typical LED Current Matching
? Adaptive 1x/1.5x/2x Mode Switchover
? Single-Wire, Serial-Pulse Interface for Brightness
?? Control (32 Steps)
? Thermal TA Derating Function
? Low Input Ripple and EMI
? 2.7V to 5.5V Supply Voltage Range
? Soft-Start, Overvoltage, and Thermal-Shutdown
?? Protection
? 28-Pin TQFN, 4mm x 4mm Package
Applications
?? Camera Phones and Smartphones
?? Backlighting and Flash
?? PDAs, Digital Cameras, and Camcorders
產(chǎn)品屬性
- 產(chǎn)品編號：
MAX8645XETI+T
- 制造商：
Analog Devices Inc./Maxim Integrated
- 類別：
集成電路（IC） > LED 驅(qū)動器
- 包裝：
卷帶（TR）
- 類型：
DC DC 穩(wěn)壓器
- 拓撲：
開關(guān)電容器（充電泵）
- 內(nèi)部開關(guān)：
是
- 輸出數(shù)：
8
- 電壓 - 供電（最低）：
2.7V
- 電壓 -?供電（最高）：
5.5V
- 電壓 - 輸出：
5.5V
- 電流 - 輸出/通道：
30mA，200mA（閃存）
- 頻率：
1MHz
- 調(diào)光：
單線
- 應(yīng)用：
背光，照相機閃光燈
- 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 DRV RGLTR SGL WR 28TQFN
| 供應(yīng)商 | 型號 | 品牌 | 批號 | 封裝 | 庫存 | 備注 | 價格 |
|---|---|---|---|---|---|---|---|
Maxim |
22+ |
28TQFN |
9000 |
原廠渠道,現(xiàn)貨配單 |
詢價 | ||
MAXIM |
23+ |
QFN28 |
130 |
原裝環(huán)保房間現(xiàn)貨假一賠十 |
詢價 | ||
MAXIM/美信 |
22+ |
QFN28 |
9000 |
原裝正品 |
詢價 | ||
MAXIM/美信 |
22+ |
QFN28 |
12245 |
現(xiàn)貨,原廠原裝假一罰十! |
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 |
2020+ |
80000 |
只做自己庫存,全新原裝進口正品假一賠百,可開13%增 |
詢價 | |||
MAXIM/美信 |
23+ |
QFN |
3000 |
一級代理原廠VIP渠道,專注軍工、汽車、醫(yī)療、工業(yè)、 |
詢價 | ||
MAXIM |
19+ |
QFN |
256800 |
原廠代理渠道,每一顆芯片都可追溯原廠； |
詢價 | ||
MAXIM |
09+ |
QFN |
5500 |
原裝無鉛,優(yōu)勢熱賣 |
詢價 | ||
MAXIM |
22+ |
QFN-32 |
3000 |
強調(diào)現(xiàn)貨,隨時查詢! |
詢價 |
