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参数资料
| 型号： | SIP12401DMP-T1-E3 |
| 厂商： | Vishay Siliconix |
| 文件页数： | 4/9页 |
| 文件大小： | 0K |
| 描述： | IC BOOST REG PWM PPAK MLP33-6 |
| 标准包装： | 3,000 |
| 拓扑： | PWM，升压（升压） |
| 输出数： | 1 |
| 内部驱动器： | 无 |
| 类型 - 主要： | 背光，通用 |
| 类型 - 次要： | 白色 LED |
| 频率： | 425kHz ~ 775kHz |
| 电源电压： | 1.8 V ~ 5 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | PowerPAK? MLP33-6 |
| 供应商设备封装： | PowerPAK? MLP33-6 |
| 包装： | 带卷 (TR) |
| 工作温度： | -40°C ~ 85°C |
SiP12401
Product is End of Life 3/2014
Vishay Siliconix
FUNCTIONAL BLOCK DIAGRAM
V IN
AGND
Compensation
FB
-
E/A
+
+
PWM
Driver
EXT
-
PGND
XSHD
Reference and Soft-Start
Oscillator
DETAILED OPERATION
SiP12401 is a 600 kHz boost controller IC, packaged in 6-pin
MLP33, for white LED applications. It features fixed
frequency voltage mode PWM control with internal frequency
compensation. With the low r DS(on) external power MOSFET,
this device maintains high efficiency over a wide range of
load current.
Soft-Start
During soft-start, the loop compensation guarantees the slow
increase of the output voltage and inrush current, so that no
large voltage overshoot and inrush current occur when the
soft-start is ended.
PWM operation
After soft-start, the device is working in PWM operation with
a fixed frequency of 600 kHz.
APPLICATION INFORMATION
White LED Brightness Control
The current of white LED can be adjusted by PWM signal on
the XSHD pin or by a variable dc voltage to control its
brightness, (see Figure 1.) As control voltage V CTRL
increases, the voltage drop on R2 increases and the voltage
drop on R1 decreases. Thus, the LED current decreases.
The selection of R2 and R3 will make the current from V CTRL
much smaller than LED current and much larger than the FB
pin bias current.
MBR0520
V IN
22 μH
10 μF
2
V IN
4.7 μF
XSHD
1
XSHD
AGND
4
I LED
0.3 V
15 Ω
0.3 - V CTRL
15 Ω
R2
R3
SiP12401
3
FB
EXT
6
Si2302ADS
R2
1 k Ω
PGND
5
R3
3.9 k Ω
V CTRL
15 Ω
www.vishay.com
4
Document Number: 73193
S-71822-Rev. C, 03-Sep-07
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SIP12501 | 制造商:VISHAY 制造商全称:Vishay Siliconix 功能描述:Boost Converter for Single/Double AA Cell or NiMH Battery for White LED Applications |
| SIP12501DMP-T1-E3 | 功能描述:LED照明驱动器 Boost Converter .65-3.3Vin 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 |
| SIP12502 | 制造商:VISHAY 制造商全称:Vishay Siliconix 功能描述:500 mA - Fixed Output Boost Converter for Single or Dual Cell |
| SIP12502DMP-20-E3 | 功能描述:直流/直流开关转换器 500mA 2.0Vout Boost .85-5.0Vin RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| SIP12502DMP-33-E3 | 功能描述:直流/直流开关转换器 500mA 3.3Vout Boost .85-5.0Vin RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
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