- 您现在的位置：买卖IC网 > PDF目录13149 > MIC4043YM4 TR (Micrel Inc)IC REG SHUNT LOW VOLT SOT-143 PDF资料下载
参数资料
| 型号： | MIC4043YM4 TR |
| 厂商： | Micrel Inc |
| 文件页数： | 1/12页 |
| 文件大小： | 0K |
| 描述： | IC REG SHUNT LOW VOLT SOT-143 |
| 标准包装： | 1 |
| 应用： | 转换器，电源 |
| 输入电压： | 10V |
| 输出数： | 1 |
| 输出电压： | 10V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | TO-253-4，TO-253AA |
| 供应商设备封装： | SOT-143 |
| 包装： | 标准包装 |
| 产品目录页面： | 1093 (CN2011-ZH PDF) |
| 其它名称： | 576-2715-6 |
MIC4043
General Description
The MIC4043 is a shunt regulator optimized for secondary-
side regulation in low-voltage power supplies. Featuring an
output stage guaranteed to swing within 400mV of ground,
the MIC4043 can be used in power supplies operating down
to 1.8V, even with optoisolators requiring greater than 1.2V of
headroom.
In power supply applications, the MIC4043 normally drives
the LED of an optically isolated feedback circuit. The MIC4043
monitors a resistively-divided output voltage and sinks error
current through the optoisolator’s LED (secondary side); the
optoisolator’s transistor (primary side) provides this signal to
Micrel
MIC4043
Low-Voltage Secondary-Side Shunt Regulator
Final Information
Features
? Ideal for 1.8V switching converters
? Low-voltage operation
400mV maximum saturation over
operating temperature range
? Easy to use
voltage in, current out
? 2% voltage tolerance over operating temperature range
Applications
? Optically isolated low-volage power supplies
? Low-voltage discrete regulator control
the controller’s feedback input. The MIC4043 is also practical
for other voltage-monitoring applications requiring an open-
collector output.
The MIC4043 replaces conventional ’431-type shunt regula-
tors to allow low-voltage applications where there is inad-
equate headroom for a 2.5V regulator in series with an
optoisolator. Replacing ’431-type devices requires only a
minor change to the way that the resistive-divider values are
calculated.
Typical Application
OPTICAL
ISOLATION
MIC4043
IN SNK
GND FB
MIC4043
V IN
Low-Side Feedback
Control
COMPENSATION
V OUT
1
2
7
6
R1
R2
1
2
MIC38HC43BN
COMP V REF
FB
V DD
8
7
4
Return
V OUT = 1.245V ?
+ 1 ?
3
4
I SNS
R T /C T
V OUT
GND
6
5
3
? R2
? R1
?
?
200kHz DC-DC Flyback Converter
Micrel, Inc. ? 1849 Fortune Drive ? San Jose, CA 95131 ? USA ? tel + 1 (408) 944-0800 ? fax + 1 (408) 944-0970 ? http://www.micrel.com
November 2000
1
MIC4043
相关PDF资料 |
PDF描述 |
|---|---|
| VI-JNM-CX | CONVERTER MOD DC/DC 10V 75W |
| LT1761ES5-3#TRMPBF | IC REG LDO 3V .1A TSOT23-5 |
| EBM36DKKH | CONN EDGECARD 72POS .156 WW |
| GBC44DCAH-S189 | CONN EDGECARD 88POS R/A .100 SLD |
| ESRD330M08B | CAP ALUM 33UF 8V 20% SMD |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MIC4100 | 制造商:MIC 制造商全称:MIC GROUP RECTIFIERS 功能描述:100V Half Bridge MOSFET Drivers |
| MIC4100_11 | 制造商:MIC 制造商全称:MIC GROUP RECTIFIERS 功能描述:100V Half Bridge MOSFET Drivers |
| MIC4100BM | 功能描述:IC DRIVER MOSFET 100V CMOS 8SOIC RoHS:否 类别:集成电路 (IC) >> PMIC - MOSFET，电桥驱动器 - 外部开关 系列:- 标准包装:50 系列:- 配置:高端 输入类型:非反相 延迟时间:200ns 电流 - 峰:250mA 配置数:1 输出数:1 高端电压 - 最大（自引导启动）:600V 电源电压:12 V ~ 20 V 工作温度:-40°C ~ 125°C 安装类型:通孔 封装/外壳:8-DIP（0.300"，7.62mm） 供应商设备封装:8-DIP 包装:管件 其它名称:*IR2127 |
| MIC4100BMTR | 功能描述:IC DRIVER MOSFET 100V CMOS 8SOIC RoHS:否 类别:集成电路 (IC) >> PMIC - MOSFET，电桥驱动器 - 外部开关 系列:- 标准包装:50 系列:- 配置:高端 输入类型:非反相 延迟时间:200ns 电流 - 峰:250mA 配置数:1 输出数:1 高端电压 - 最大（自引导启动）:600V 电源电压:12 V ~ 20 V 工作温度:-40°C ~ 125°C 安装类型:通孔 封装/外壳:8-DIP（0.300"，7.62mm） 供应商设备封装:8-DIP 包装:管件 其它名称:*IR2127 |
| MIC4100YM | 功能描述:功率驱动器IC 100V HalfBridge MOSFET Driver 2A SOURCE/SINK CURRENT CMOS INPUT (Lead Free) RoHS:否 制造商:Micrel 产品:MOSFET Gate Drivers 类型:Low Cost High or Low Side MOSFET Driver 上升时间: 下降时间: 电源电压-最大:30 V 电源电压-最小:2.75 V 电源电流: 最大功率耗散: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Tube |
发布紧急采购，3分钟左右您将得到回复。