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Numéro de référence | MIC94051 | ||
Description | P-Channel MOSFET | ||
Fabricant | Micrel Semiconductor | ||
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1 Page
MIC94050/94051
Micrel
MIC94050/94051
4-Terminal SymFET™ P-Channel MOSFET
General Description
The MIC94050 and MIC94051 are 4-terminal silicon gate
P-channel MOSFETs that provide low on-resistance in a very
small package.
Designed for high-side switch applications where space is
critical, the MIC94050/1 exhibits an on-resistance of typically
0.125Ω at 4.5V gate-to-source voltage. The MIC94050/1 also
operates with only 1.8V gate-to-source voltage.
The MIC94050 is the basic 4-lead P-channel MOSFET. The
MIC94051 is a variation that includes an internal gate pull-
up resistor that can reduce the system parts count in many
applications.
The 4-terminal SOT-143 package permits a substrate con-
nection separate from the source connection. This 4-terminal
configuration improves the θJA (improved heat dissipation)
and makes reverse-blocking switch applications practical.
The small size, low threshold, and low RDS(on) make the
MIC94050/1 the ideal choice for PCMCIA, USB, back-up
battery-power, and distributed power management applica-
tions.
SymFET™
Features
• 0.125Ω typical on-resistance
at 4.5V gate-to-source voltage
• Operates with 1.8V gate-to-source voltage
• Separate substrate connection allows reverse-blocking
Applications
• Distributed power management
• PCMCIA card power management
• USB ports
• Battery-powered computers, peripherals
• Handheld bar-code scanners
• Portable communications equipment
• Reverse blocking battery management
Ordering Information
Part Number Temp. Range*
MIC94050BM4 –40°C to +150°C
MIC94051BM4 –40°C to +150°C
MIC94050YM4 –40°C to +150°C
MIC94051YM4 –40° to +150°C
* Operating Junction Temperature
Package
SOT-143
SOT-143
SOT-143
SOT-143
Pb-FREE
NO
NO
YES
YES
Pin Configuration
Typical PCB Layout
Part
Identification
Drain Substrate
P5x
Gate Source
Part Number
MIC94050BM4
MIC94051BM4
MIC94050YM4
MIC94051YM4
Identification
P50
P51
P50
P51
D
PCB heat sikn
plane improves
heat dissipation
SS
SOT-143 Package (M4)
Schematic Symbol
GS
PCB traces
Functional Diagrams
S
S
Source
Gate Substrate
Drain
~350kΩ
G SS G
SS
Internal
gate-to-source
D
pull-up resistor
D
Schematic Symbol
MIC94050
MIC94051
SymFET is a trademark of Micrel, Inc.
Micrel, Inc. • 1849 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 (408) 944-0800 • fax + 1 (408) 944-0970 • http://www.micrel.com
January 2007
1 MIC94050/94051
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Pages | Pages 5 | ||
Télécharger | [ MIC94051 ] |
No | Description détaillée | Fabricant |
MIC94050 | P-Channel MOSFET | Micrel Semiconductor |
MIC94051 | P-Channel MOSFET | Micrel Semiconductor |
MIC94052 | P-Channel MOSFET | Micrel Semiconductor |
MIC94053 | P-Channel MOSFET | Micrel Semiconductor |
US18650VTC5A | Lithium-Ion Battery | Sony |
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