High-Efficiency, White LED Step-Up Converter
with I 2 C Interface in 2mm x 2mm WLP
SHUTDOWN
V DD INVALID.
V DD INVALID FROM
ANY CONDITION
INTERNAL
REFERENCE, BIAS,
AND OSCILLATOR
ARE OFF; I 2 C
REGISTER IS IN
RESET.
V DD VALID
STANDBY
I 2 C READY.
INTERNAL
I 2 C LED_ ENABLE
COMMAND RECEIVED
REFERENCE, BIAS,
AND OSCILLATOR
ARE OFF.
ALL CURRENT
REGULATORS
DISABLED
ALL CURRENT
REGULATORS
DISABLED USING I 2 C
ENABLE BIT
CLEARED FOR
FAULTED LED_
STRING AND STAT1
REGISTER IS
UPDATED WITH
FAULT CONDITION.
LED SHORT OR
OPEN FAULT
ONE OR MORE
ON
BOOST CONVERTER
AND LEDs ARE ON,
INTERNAL
REFERENCE, BIAS,
AND OSCILLATOR
ARE ON.
V IN < V UVLO
UVLO CHECK
I 2 C READY.
INTERNAL
REFERENCE, BIAS
AND OSCILLATOR
ARE OFF.
CURRENT
REGULATORS ENABLED
V IN > V UVLO
SCHOTTKY DIODE
ENABLE BIT
CLEARED FOR ALL
LED_, AND STAT2
REGISTER IS
UPDATED WITH
FAULT CONDITION.
TSD OR OVP FAULT
DETECTED
SCHOTTKY DIODE NOT DETECTED
OPEN SCHOTTKY
DIODE DETECTION
INTERNAL
REFERENCE, BIAS,
AND OSCILLATOR
ARE ON.
Figure 4. State Diagram of Global Faults
14
______________________________________________________________________________________
相关PDF资料
MAX8834ZEWP+T IC LED DRIVR BCKLGT FLASH 20-WLP
MAX8855EVKIT+ KIT EVAL FOR MAX8855
MAX8879ETG+T IC LED DRVR WT/RGB BCKLGT 24TQFN
MAX8901BETA+TCH8 IC LED DRIVER WHITE BCKLGT 8TDFN
MAX8930EWJ+T IC LED DRVR WT/RGB BCKLGT 49WLP
MAXQ2000-KIT EVAL KIT FOR MAXQ2000
MAXQ610-KIT# EVALUATION KIT FOR MAXQ610
MB2146-401-01A KIT STARTER F2MC-8FX 3V
相关代理商/技术参数
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
MAX8834YEVKIT+ 功能描述:LED 照明开发工具 Adaptive Step-Up Converters with 1.5A Flash Driver 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:
MAX8834YEWP+T 功能描述:LED照明驱动器 Adaptive 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
MAX8834ZEWP+T 功能描述:LED照明驱动器 Adaptive 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
MAX8836ZEREEE+T 功能描述:电流型 PWM 控制器 1.2A PWM Step-Down Converter RoHS:否 制造商:Texas Instruments 开关频率:27 KHz 上升时间: 下降时间: 工作电源电压:6 V to 15 V 工作电源电流:1.5 mA 输出端数量:1 最大工作温度:+ 105 C 安装风格:SMD/SMT 封装 / 箱体:TSSOP-14
MAX8836ZEWEEE+ 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述:
MAX8836ZEWEEE+T 制造商:Maxim Integrated Products 功能描述: