- 您現(xiàn)在的位置：買(mǎi)賣(mài)IC網(wǎng) > PDF目錄384736 > MIC5011BN (MICREL INC) Minimum Parts High- or Low-Side MOSFET Driver PDF資料下載
參數(shù)資料
| 型號(hào)： | MIC5011BN |
| 廠商： | MICREL INC |
| 元件分類(lèi)： | 功率晶體管 |
| 英文描述： | Minimum Parts High- or Low-Side MOSFET Driver |
| 中文描述： | BUF OR INV BASED MOSFET DRIVER, PDIP8 |
| 封裝： | PLASTIC, DIP-8 |
| 文件頁(yè)數(shù)： | 10/12頁(yè) |
| 文件大?。?/td> | 121K |
| 代理商： | MIC5011BN |
MIC5011
Micrel
MIC5011
10
July 2000
Applications Information
(Continued)
Figure 11. Electronic Governor
M
T
100nF
1N4148
Input
Source
Gate
1
2
3
4
8
MIC5011
V+
7
6
5
Gnd
C1
Com
C2
15V
IRF541
10μF
+
330k
330k
1k
1nF
15V
Figure 10. Motor Stall
Shutdown
M
T
STOP
RUN
START
12V
100nF
1N4148
Input
Source
Gate
1
2
3
4
8
MIC5011
V+
7
6
5
Gnd
C1
Com
C2
12V
IRFZ44
10μF
+
330k
330k
R
Time-Delay Relay
(Figure 9). The MIC5011 forms the
basis of a simple time-delay relay. As shown, the delay
commences when power is applied, but the 100k
/1N4148
could be independently driven from an external source such
as a switch or another high-side driver to give a delay
relative to some other event in the system. Hysteresis has
been added to guarantee clean switching at turn-on.
Motor Driver with Stall Shutdown
(Figure 10). Tachom-
eter 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 MIC5011 input ON. If the motor slows down, the tach
output is reduced, and the MIC5011 switches OFF. Resis-
tor
“
R
”
sets the shutdown threshold.
Electronic Governor
(Figure 11). The output of an ac
tachometer can be used to form a PWM loop to maintain the
speed of a motor. The tachometer output is rectified,
partially filtered, and fed back to the input of the MIC5011.
When the motor is stalled there is no tachometer output,
and MIC5011 input is pulled high delivering full power to the
motor. If the motor spins fast enough, the tachometer output
is sufficient to pull the MIC5011 input low, shutting the
output off. Since the rectified waveform is only partially
filtered, the input oscillates around its threshold causing the
MIC5011 to switch on and off at the frequency of the
tachometer signal. A PWM action results since the average
dc voltage at the input decreases as the motor spins faster.
The 1k
potentiometer is used to set the running speed of
the motor. Loop gain (and speed regulation) is increased by
increasing the value of the 100nF filter capacitor.
The performance of such a loop is imprecise, but stable and
inexpensive. A more elaborate loop would consist of a PWM
controller and a half-bridge.
Input
Source
Gate
1
2
3
4
8
MIC5011
V+
7
6
5
Gnd
C1
Com
C2
12V
IRFZ44
10μF
Figure 9. 30 Ampere
Time-Delay Relay
+
OUTPUT
(Delay=2.5s)
10k
100
47μF
+
100k
1N4148
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MIC5014-1 | Circular Connector; No. of Contacts:8; Series:; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:12; Circular Contact Gender:Pin; Circular Shell Style:Jam Nut Receptacle; Insert Arrangement:12-8 RoHS Compliant: No |
| MIC5014BM | FPGA 1000000 SYSTEM GATE 1.8 VOLT - NOT RECOMMENDED for NEW DESIGN |
| MIC5014BN | FPGA 1000000 SYSTEM GATE 1.8 VOLT - NOT RECOMMENDED for NEW DESIGN |
| MIC5015BM | Low-Cost High- or Low-Side MOSFET Driver Final Information |
| MIC5015BN | Low-Cost High- or Low-Side MOSFET Driver Final Information |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MIC5011YM | 功能描述:功率驅(qū)動(dòng)器IC High Side MOSFET Predriver - Lead Free RoHS:否 制造商:Micrel 產(chǎn)品:MOSFET Gate Drivers 類(lèi)型:Low Cost High or Low Side MOSFET Driver 上升時(shí)間: 下降時(shí)間: 電源電壓-最大:30 V 電源電壓-最小:2.75 V 電源電流: 最大功率耗散: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
| MIC5011YM TR | 功能描述:功率驅(qū)動(dòng)器IC High Side MOSFET Predriver - Lead Free RoHS:否 制造商:Micrel 產(chǎn)品:MOSFET Gate Drivers 類(lèi)型:Low Cost High or Low Side MOSFET Driver 上升時(shí)間: 下降時(shí)間: 電源電壓-最大:30 V 電源電壓-最小:2.75 V 電源電流: 最大功率耗散: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
| MIC5011YMTR | 制造商:Micrel Inc 功能描述: |
| MIC5011YN | 功能描述:功率驅(qū)動(dòng)器IC High Side MOSFET Predriver - Lead Free RoHS:否 制造商:Micrel 產(chǎn)品:MOSFET Gate Drivers 類(lèi)型:Low Cost High or Low Side MOSFET Driver 上升時(shí)間: 下降時(shí)間: 電源電壓-最大:30 V 電源電壓-最小:2.75 V 電源電流: 最大功率耗散: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
| MIC5012 | 制造商:MICREL 制造商全稱(chēng):Micrel Semiconductor 功能描述:Dual High- or Low-Side MOSFET Driver Not Recommended for New Designs |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。