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| 型号： | MAX8830EWE+T |
| 厂商： | Maxim Integrated |
| 文件页数： | 1/16页 |
| 文件大小： | 0K |
| 描述： | IC LED DRVR WHITE BCKLGT 16-UCSP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 拓扑： | 线性（LDO），PWM，升压（升压） |
| 输出数： | 5 |
| 内部驱动器： | 是 |
| 类型 - 主要： | 背光，闪灯/白光 |
| 类型 - 次要： | 白色 LED |
| 频率： | 750kHz ~ 1.25MHz |
| 电源电压： | 2.7 V ~ 5.5 V |
| 输出电压： | 3.8 V ~ 5.2 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-WLP |
| 供应商设备封装： | 16-WLP（2x2） |
| 包装： | 带卷 (TR) |
| 工作温度： | -40°C ~ 85°C |
19-0782; Rev 1; 6/08
LED Light Management IC in
2.5mm x 2.5mm UCSP
General Description
The MAX8830 light management IC integrates a 400mA
(guaranteed) PWM DC-DC step-up converter, a 320mA
white LED camera flash current sink, and four program-
mable LED current sinks. The internal 1MHz step-up
converter features an internal switching MOSFET and
synchronous rectifier to improve efficiency and minimize
external component count. The camera flash output cur-
rent and maximum timer is programmable through I 2 C.
Each LED current is individually regulated to a program-
mable level (from off to 10mA in 32 steps) and is com-
pletely independent of each other.
An I 2 C interface controls individual on/off of all outputs,
step-up output voltage setting, movie/flash current,
flash timer duration settings, and individual LED current
sink settings.
The MAX8830 is available in a 16-bump UCSP? pack-
age (2.5mm x 2.5mm).
Applications
Cell Phones and Smartphones
PDAs and MP3 Players
Typical Operating Circuit
Features
? Step-Up DC-DC Converter
400mA Guaranteed Output Current
Over 90% Efficiency
On-Chip FET and Synchronous Rectifier
Fixed 1MHz PWM Switching
Small 2.2μH to 10μH Inductor
I 2 C-Programmable V OUT (3.8V to 5.2V and Off in
16 Steps)
? Flash LED Current Sink
I 2 C-Programmable Flash Output Current (Off to
320mA in 32 Steps)
I 2 C-Programmable Flash Maximum Timer (0.5s,
1.0s, 1.5s, or 2.0s)
I 2 C-Programmable Movie Output Current (Off to
160mA in 16 Steps)
Movie Enabled by I 2 C or Logic Input
Flash Enabled by Logic Input
Low Dropout (75mV typ)
? Four LED Current Sinks
Individually I 2 C-Programmable Output Current
Off to 10mA in 32 Steps
Low LED Sink Current Dropout Voltage (30mV typ)
INPUT
2.7V TO 5.5V
C IN
2.2 μ H TO
10 μ H
IN
GND
LX
OUT
C OUT
PROGRAMMABLE
OUTPUT
3.8V TO 5.2V
UP TO 400mA*
? I 2 C Interface
Write Address (0x94), Read Address (0x95)
Individual On/Off and LED Current Settings
Simple Register Mapping
? < 1μA Shutdown Current
? Open/Short LED Detection
PGND
COMP
MAX8830
320mA FLASH
? Thermal-Shutdown Protection
? 16-Bump, 2.5mm x 2.5mm UCSP Package
MOVIE ON
MVON
FLED
Ordering Information
FLASH ON
IC
FLEN
SCL
SDA
LED1
LED2
PART
MAX8830EWE+T
TEMP
RANGE
-40°C to
+85°C
PIN-PACKAGE
16 UCSP (2.5mm x 2.5mm)
V LOGIC
V DD
LED3
+Denotes a lead-free package.
LED4
Pin Configuration appears at the end of data sheet.
*GUARANTEED OUTPUT CURRENT FOR EXTERNAL CIRCUITRY IS 400mA
MINUS THE SUM OF ALL LED CURRENTS.
UCSP is a trademark of Maxim Integrated Products, Inc.
________________________________________________________________ Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
1
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| MAX8831EVKIT+ | 功能描述:LED 照明开发工具 High Efficiency White LED Step-Up Converter with I2C Interface in 2mm x 2mm WLP RoHS:否 制造商:Fairchild Semiconductor 产品:Evaluation Kits 用于:FL7732 核心: 电源电压:120V 系列: 封装: |
| MAX8831EWE+ | 制造商:Maxim Integrated Products 功能描述: |
| MAX8831EWE+T | 功能描述:LED照明驱动器 White LED Step-Up Converter RoHS:否 制造商:STMicroelectronics 输入电压:11.5 V to 23 V 工作频率: 最大电源电流:1.7 mA 输出电流: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:SO-16N |
| MAX8833ETJ+ | 功能描述:直流/直流开关调节器 Dual 3A 2MHz Step-Down Regulator RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
| MAX8833ETJ+T | 功能描述:直流/直流开关调节器 Dual 3A 2MHz Step-Down Regulator RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
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