參數(shù)資料
型號: MIC5014
廠商: Micrel Semiconductor,Inc.
英文描述: Low-Cost High- or Low-Side MOSFET Driver(低成本 高/低邊MOS場效應管驅動器)
中文描述: 低成本,高或低側MOSFET驅動器(低成本高/低邊馬鞍山場效應管驅動器)
文件頁數(shù): 9/9頁
文件大?。?/td> 85K
代理商: MIC5014
MIC5014/5015
Micrel
1997
5-145
5
High Side Driver With Load Protection
(Figure 12) Al-
though the MIC5014/15 devices are reverse battery pro-
tected, the load and power FET are not, in a typical high side
configuration. In the event of a reverse battery condition, the
internal body diode of the power FET will be forward biased.
This allows the reversed supply access to the load.
Push-Pull Driver With No Cross-Conduction
(Figure 13)
As the turn-off time of the MIC5014/15 devices is much faster
than the turn-on time, a simple push-pull driver with no cross
conduction can be made using one MIC5014 and one
MIC5015. The same control signal is applied to both inputs;
the MIC5014 turns on with the positive signal, and the
MIC5015 turns on when it swings low.
This scheme works with no additional components as the
relative time difference between the rise and fall times of the
MIC5014 is large. However, this does mean that there is
Figure 13: Push-Pull Driver
The addition of a Schottky diode between the supply and the
FET eliminates this problem. The MBR2035CT was chosen
as it can withstand 20A continuous and 150A peak,
and should survive the rigors of an automotive environment.
The two diodes are paralleled to reduce switch loss (forward
voltage drop).
Figure 12: High Side Driver WIth Load Protection
considerable deadtime (time when neither driver is turned on).
If this circuit is used to drive an inductive load, catch diodes
must be used on each half to provide an alternate path for the
kickback current that will flow during this deadtime.
This circuit is also a simple half H-bridge which can be driven
with a PWM signal on the input for SMPS or motor drive
applications in which high switching frequencies are not
desired.
L
MIC5014
Control Input
ON
OFF
1
2
3
4
8
7
6
5
IRF540
12V
NC
Gate
Gnd
Source
Input
V+
NC
NC
10μF
MBR2035CT
MIC5014
Control Input
1
2
3
4
8
7
6
5
IRFZ40
12V
NC
Gate
Gnd
Source
Input
V+
NC
NC
10μF
MIC5015
1
2
3
4
8
7
6
5
NC
Gate
Gnd
Source
Input
V+
NC
NC
12V
IRFZ40
V
OUT
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相關代理商/技術參數(shù)
參數(shù)描述
MIC5014_05 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:Low-Cost High- or Low-Side MOSFET Driver
MIC5014-1 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:Low-Cost High- or Low-Side MOSFET Driver Final Information
MIC5014BM 功能描述:IC DRIVER MOSF HI/LO SIDE 8SOIC RoHS:否 類別:集成電路 (IC) >> PMIC - MOSFET,電橋驅動器 - 外部開關 系列:- 標準包裝:50 系列:- 配置:高端 輸入類型:非反相 延遲時間:200ns 電流 - 峰:250mA 配置數(shù):1 輸出數(shù):1 高端電壓 - 最大(自引導啟動):600V 電源電壓:12 V ~ 20 V 工作溫度:-40°C ~ 125°C 安裝類型:通孔 封裝/外殼:8-DIP(0.300",7.62mm) 供應商設備封裝:8-DIP 包裝:管件 其它名稱:*IR2127
MIC5014BM TR 功能描述:IC DRIVER MOSF HI/LO SIDE 8SOIC RoHS:否 類別:集成電路 (IC) >> PMIC - MOSFET,電橋驅動器 - 外部開關 系列:- 標準包裝:50 系列:- 配置:高端 輸入類型:非反相 延遲時間:200ns 電流 - 峰:250mA 配置數(shù):1 輸出數(shù):1 高端電壓 - 最大(自引導啟動):600V 電源電壓:12 V ~ 20 V 工作溫度:-40°C ~ 125°C 安裝類型:通孔 封裝/外殼:8-DIP(0.300",7.62mm) 供應商設備封裝:8-DIP 包裝:管件 其它名稱:*IR2127
MIC5014BN 功能描述:IC DRIVER MOSFET HI/LO SIDE 8DIP RoHS:否 類別:集成電路 (IC) >> PMIC - MOSFET,電橋驅動器 - 外部開關 系列:- 標準包裝:50 系列:- 配置:高端 輸入類型:非反相 延遲時間:200ns 電流 - 峰:250mA 配置數(shù):1 輸出數(shù):1 高端電壓 - 最大(自引導啟動):600V 電源電壓:12 V ~ 20 V 工作溫度:-40°C ~ 125°C 安裝類型:通孔 封裝/外殼:8-DIP(0.300",7.62mm) 供應商設備封裝:8-DIP 包裝:管件 其它名稱:*IR2127