Six-String WLED Driver with Integrated
Step-Up Converter
Typical Operating Circuit
The MAX17127 typical operating circuit is shown as
Figure 1. Table 1 lists some recommended components,
L1
and Table 2 lists the contact information for component
suppliers.
V S
5V TO 26V
0.1 μ F
V IN
C IN
4.7 μ F
V IN
V DDIO
10 μ H
SW
PGND
D1
C OUT
4.7 μ F
R 1
2.21M I
1 μ F
OVP
R ISET
180k I
R FSLCT
100k I
ISET
FSLCT
MAX17127
COMP
AGND
R COMP
82.5k I
C COMP
510pF
R 2
71.5k I
I.C.
10k I
3.3V
EN
PWM
R_FPWM
FB1
FB2
FB3
FB4
FB5
FAULT INDICATOR
FPO
FB6
EP
Figure 1. Typical Operating Circuit
Table 1. Component List
DESIGNATION
C IN
C1, C2
DESCRIPTION
4.7 F F Q 10%, 25V X5R ceramic capacitor
(1206)
Murata GRM319R61E475KA12D
2.2 F F Q 20%, 50V X7R ceramic capacitors
(1206)
DESIGNATION
L1
White LED
DESCRIPTION
10 F H, 1.2A power inductor
Sumida CR6D09HPNP-100MC
TDK VLP6810T-100M1R2
3.2V (typ), 3.5V (max) at 20mA
Nichia NSSW008C
Murata GRM31CR71H225K
D1
2A, 40V Schottky diode (M-flat)
Toshiba CMS11
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11
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相关代理商/技术参数
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
MAX17129ETE+ 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
MAX17129ETE+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
MAX17129EVKIT+ 功能描述:电源管理IC开发工具 MAX17129 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
MAX1712EEG 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述:Swithed-Mode Power Supply Controller, Current Mode Type, 24 Pin, Plastic, SSOP