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參數(shù)資料
| 型號： | MIC5014BN |
| 廠商： | MICREL INC |
| 元件分類： | 功率晶體管 |
| 英文描述： | FPGA 1000000 SYSTEM GATE 1.8 VOLT - NOT RECOMMENDED for NEW DESIGN |
| 中文描述： | BUF OR INV BASED MOSFET DRIVER, PDIP8 |
| 封裝： | PLASTIC, DIP-8 |
| 文件頁數(shù)： | 8/12頁 |
| 文件大小： | 76K |
| 代理商： | MIC5014BN |
MIC5014/5015
Micrel
MIC5014/5015
8
1997
Motor Driver With Stall Shutdown
(Figure 10) Tachometer
feedback can be used to shut down a motor driver circuit when
a stall condition occurs. The control switch is a 3-way type; the
“
START
”
position is momentary and forces the driver ON.
When released, the switch returns to the
“
RUN
”
position, and
the tachometer
’
s output is used to hold the MIC5014 input ON.
If the motor slows down, the tach output is reduced, and the
MIC5014 switches OFF. Resistor
“
R
”
sets the shutdown
threshold.
Figure 10. Motor Stall Shutdowm
Simple DC-DC Converter
(Figure 11) The simplest applica-
tion for the MIC5014 is as a basic one-chip DC-DC converter.
As the output (Gate) pin has a relatively high impedance, the
output voltage shown will vary significantly with applied load.
Incandescent/Halogen Lamp Driver
(Figure 8) The combi-
nation of an MIC5014/5015 and a power FET makes an
effective driver for a standard incandescent or halogen lamp
load. Such loads often have high inrush currents, as the
resistance of a cold filament is less than one-tenth as much as
when it is hot. Power MOSFETs are well suited to this
application as they have wider safe operating areas than do
power bipolar transistors. It is important to check the SOA
curve on the data sheet of the power FET to be used against
the estimated or measured inrush current of the lamp in
question prior to prototyping to prevent
“
explosive
”
results.
If overcurrent sense is to be used, first measure the duration
of the inrush, then use the topology of Figure 5 with the RC of
the timer chosen to accomodate the duration with suitable
guardbanding.
Figure 8. Halogen Lamp Driver
Relay Driver
(Figure 9) Some power relay applications re-
quire the use of a separate switch or drive control, such as in
the case of microprocessor control of banks of relays where
a logic level control signal is used, or for drive of relays with
high power requirements. The combination of an MIC5014/
5015 and a power FET also provides an elegant solution to
power relay drive.
Figure 9: Relay Driver
MIC5014
Control Input
ON
OFF
1
2
3
4
8
7
6
5
IRF540
12V
NC
Gate
Gnd
Source
Input
V+
NC
NC
10μF
OSRAM
HLX64623
MIC5014
Control Input
ON
OFF
1
2
3
4
8
7
6
5
IRF540
12V
NC
Gate
Gnd
Source
Input
V+
NC
NC
10μF
Guardian Electric
1725-1C-12D
MIC5014
1
2
3
4
8
7
6
5
IRFZ44
12V
NC
Gate
Gnd
Source
Input
V+
NC
NC
10μF
M
T
R
330k
330k
1N4148
Figure 11. DC - DC Converter
MIC5014
1
2
3
4
8
7
6
5
NC
Gate
Gnd
Source
Input
V+
NC
NC
10μF
5V
V
OUT
= 12V
相關PDF資料 |
PDF描述 |
|---|---|
| MIC5015BM | Low-Cost High- or Low-Side MOSFET Driver Final Information |
| MIC5015BN | Low-Cost High- or Low-Side MOSFET Driver Final Information |
| MIC5014 | Low-Cost High- or Low-Side MOSFET Driver(低成本 高/低邊MOS場效應管驅動器) |
| MIC5015 | Low-Cost High- or Low-Side MOSFET Driver(低成本 高/低邊MOS場效應管驅動器) |
| MIC502 | FPGA - 100000 SYSTEM GATE 2.5 VOLT - NOT RECOMMENDED for NEW DESIGN |
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|---|---|
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| MIC5014YM | 制造商:Micrel Inc 功能描述:MOSFET Driver IC |
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| MIC5014YM-TR | 功能描述:IC DRIVER MOSF HI/LO SIDE 8SOIC 制造商:microchip technology 系列:- 包裝:剪切帶（CT） 零件狀態(tài):有效 驅動配置:高壓側或低壓側 通道類型:單路 驅動器數(shù):1 柵極類型:N 溝道 MOSFET 電壓 - 電源:2.75 V ~ 30 V 邏輯電壓?- VIL，VIH:0.8V，2V 電流 - 峰值輸出（灌入，拉出）:- 輸入類型:非反相 高壓側電壓 - 最大值（自舉）:- 上升/下降時間（典型值）:- 工作溫度:-40°C ~ 150°C（TJ） 安裝類型:表面貼裝 封裝/外殼:8-SOIC（0.154"，3.90mm 寬） 供應商器件封裝:8-SOIC 標準包裝:1 |
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