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参数资料
| 型号： | MAX17127ETP+ |
| 厂商： | Maxim Integrated |
| 文件页数： | 1/22页 |
| 文件大小： | 0K |
| 描述： | IC WLED DVR SIX STRING 20TQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 75 |
| 拓扑： | PWM，升压（升压） |
| 输出数： | 6 |
| 内部驱动器： | 是 |
| 类型 - 主要： | 车载，背光 |
| 类型 - 次要： | 白色 LED |
| 频率： | 250kHz ~ 1MHz |
| 电源电压： | 5 V ~ 26 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-WFQFN 裸露焊盘 |
| 供应商设备封装： | 20-TQFN-EP |
| 包装： | 管件 |
| 工作温度： | -40°C ~ 85°C |
EVALUA
AVAILAB
19-5164; Rev 0; 3/10
TION KIT
LE
Six-String WLED Driver with Integrated
Step-Up Converter
General Description
The MAX17127 is a high-efficiency driver for white light-
emitting diodes (LEDs). It is designed for large liquid-
crystal displays (LCDs) that employ an array of LEDs as
the light source. An internal switch current-mode step-up
converter drives the LED array, which can be configured
for up to six strings in parallel and 13 LEDs per string.
Each string is terminated with ballast that achieves Q 2%
current-regulation accuracy, ensuring even LED bright-
ness. The MAX17127 has a wide input voltage range
from 5V to 26V, and provides adjustable 10mA to 30mA
full-scale LED current.
The MAX17127 can implement brightness control through
the PWM signal input, and LED current is directly con-
trolled by the external dimming signal’s frequency and
duty cycle.
Features
S 5V to 26V Input Supply Voltage
S Up to Six Parallel Strings Multiple Series-
Connected LEDs
S 250kHz to 1MHz Adjustable Switching Frequency
S 0.12 I Internal HV Power MOSFET (48V max)
S Low String Feedback Voltage: 480mV at 20mA
LED Current
S Full-Scale LED Current Adjustable from 10mA to
30mA
S Q 2% Current-Regulation Accuracy Between
Strings
S 400ns Minimum String On-Time
S 100Hz to 25kHz PWM Input Range
S Open and Short LED Protection
The MAX17127 has multiple features to protect the con-
troller from fault conditions. Once an open/short string is
S
S
Output Overvoltage Protection
Thermal Shutdown
detected, the fault string is disabled while other strings
can still operate normally. The controller features cycle-
by-cycle current limit to provide constant operation and
S Small 20-Pin, 4mm x 4mm Thin QFN Package
soft-start capability. If the MAX17127 is in current-limit
condition, the step-up converter is latched off after an
internal timer expires. A thermal-shutdown circuit pro-
vides another level of protection. When thermal shut-
down happens, the MAX17127 is latched off.
PART
MAX17127ETP+
Ordering Information
TEMP RANGE PIN-PACKAGE
-40°C to +85°C 20 TQFN-EP*
The MAX17127’s step-up controller features an inter-
nal 0.12 I (typ), 48V (max) power MOSFET with local
current-sense amplifier for accurate cycle-by-cycle cur-
rent limit. This architecture greatly simplifies the external
circuitry and saves PCB space. Low-feedback volt-
age at each LED string helps reduce power loss and
improve efficiency. The MAX17127 features resistor-
adjustable switching frequency from 250kHz to 1MHz,
which enables a wide variety of applications that can
trade off component size for operating frequency.
+ Denotes a lead(Pb)-free/RoHS-compliant package.
* EP = Exposed pad.
Applications
Notebook, Subnotebook, and Tablet Computer
Displays
Automotive Systems
Handy Terminals
The MAX17127 is available in a thermally enhanced,
lead-free, 20-pin, 4mm x 4mm thin QFN package.
Simplified Operating Circuit appears at end of data sheet.
_______________________________________________________________ Maxim Integrated Products 1
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.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX17127ETP+ | 功能描述:LED照明驱动器 White LED Driver 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 |
| MAX17127ETP+T | 功能描述:LED照明驱动器 Six String WLED Drvr w/Integrated MOSFET 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 |
| MAX17127EVKIT+ | 功能描述:电源管理IC开发工具 MAX17127 Eval Kit RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
| MAX17129AETE+ | 功能描述:LED照明驱动器 Six String WLED Drvr w/Integrated MOSFET 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 |
| MAX17129AETE+T | 功能描述:LED照明驱动器 Six String WLED Drvr w/Integrated MOSFET 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 |
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