MIC5018 반도체 회로 부품 판매점
IttyBitty High-Side MOSFET Driver Preliminary Information
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 Micrel Semiconductor |
MIC5018
Micrel
MIC5018
IttyBitty™ High-Side MOSFET Driver
Preliminary Information
General Description
The MIC5018 IttyBitty™ high-side MOSFET driver is de-
signed to switch an N-channel enhancement-type MOSFET
from a TTL compatible control signal in high- or low-side
switch applications. This driver features the tiny 4-lead
SOT-143 package.
The MIC5018 is powered from a +2.7V to +9V supply and
features extremely low off-state supply current. An internal
charge pump drives the gate output higher than the driver
supply voltage and can sustain the gate voltage indefinitely.
An internal zener diode limits the gate-to-source voltage to a
safe level for standard N-channel MOSFETs.
In high-side configurations, the source voltage of the MOS-
FET approaches the supply voltage when switched on. To
keep the MOSFET turned on, the MIC5018’s output drives
the MOSFET gate voltage higher than the supply voltage. In
a typical high-side configuration, the driver is powered from
the load supply voltage. Under some conditions, the MIC5018
and MOSFET can switch a load voltage that is slightly higher
than the driver supply voltage.
In a low-side configuration, the driver can control a MOSFET
that switches any voltage up to the rating of the MOSFET.
The gate output voltage is higher than the typical 3.3V or 5V
logic supply and can fully enhance a standard MOSFET.
The MIC5018 is available in the SOT-143 package and
is rated for –40°C to +85°C ambient temperature range.
Features
• +2.7V to +9V operation
• 150µA typical supply current at 5V supply
• ≤ 1µA typical standby (off) current
• Charge pump for high-side low-voltage applications
• Internal zener diode gate-to-ground MOSFET protection
• Operates in low- and high-side configurations
• TTL compatible input
• ESD protected
Applications
• Battery conservation
• Power bus switching
• Solenoid and motion control
• Lamp control
Ordering Information
Part Number
MIC5018BM4
Temp. Range
–40°C to +85°C
Package
SOT-143
Marking
H10
5
Typical Applications
+5V
4.7µF
On
Off
MIC5018
2
VS
3
G
4 CTL GND 1
* International Rectifier
100mΩ, 17A max.
TO-220 package
IRFZ24*
N-Channel
MOSFET
Low-Voltage High-Side Power Switch
‡ Load voltage limited only by
VLOAD
‡
SUPPLY
MOSFET drain-to-source rating
* Siliconix
30mΩ, 7A max., 30V VDS max.
8-lead SOIC package
+2.7 to +9V
4.7µF
On
Off
MIC5018
2 VS
G3
4 CTL GND 1
Si9410DY*
N-channel
MOSFET
Low-Side Power Switch
1997
5-155
MIC5018
Pin Configuration
Part
Identification
Early production identification:
MH10
VS GND
21
H10
34
G CTL
SOT-143 (M4)
Micrel
Pin Description
Pin Number
1
2
3
4
Pin Name
GND
VS
G
CTL
Pin Function
Ground: Power return.
Supply (Input): +2.7V to +9V supply.
Gate (Output): Gate connection to external MOSFET.
Control (Input): TTL compatible on/off control input. Logic high drives the
gate output above the supply voltage. Logic low forces the gate output near
ground.
5-156
1997
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MIC5018 mosfet
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국내 전력반도체 판매점
상호 : 아이지 인터내셔날
전화번호 : 051-319-2877
[ 홈페이지 ]
IGBT, TR 모듈, SCR, 다이오드모듈, 각종 전력 휴즈
( IYXS, Powerex, Toshiba, Fuji, Bussmann, Eaton )
전력반도체 문의 : 010-3582-2743
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