EEWorld咨询电话：82357002，82350740－8068 邮件咨询：datasheet@eeworld.com.cn
器件描述：TinyFET⑩ P-Channel MOSFET Preliminary Information
器件厂商：MICREL [Micrel Semiconductor]
厂商主页：http://www.micrel.com/
文件大小：33.06KB
文件页数：4
PDF阅读：4030B.pdf (点击阅读器件资料)
摘要：
MIC94030/94031 Micrel
6
1997 6-41
MIC94030/94031
TinyFET? P-Channel MOSFET
Preliminary Information
General Description
The MIC94030 and MIC94031 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 MIC94030/1 exhibits an on-resistance of typically
0.75? at 4.5V gate-to-source voltage. The MIC94030/1 also
operates with only 2.7V gate-to-source voltage.
The MIC94030 is the basic 4-lead P-channel MOSFET. The
MIC94031 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 θ
JA
(improved heat dissipation)
and makes analog switch applications practical.
The small size, low threshold, and low R
DS(on)
make the
MIC94030/1 the ideal choice for PCMCIA card sleep mode or
distributed power management applications.
Features
? 13.5V minimum drain-to-source breakdown
? 0.75? typical on-resistance
at 4.5V gate-to-source voltage
? 0.45? typical on-resistance
at 10V gate-to-source voltage
? Operates with 2.7V gate-to-source voltage
? Separate substrate connection for added control
? Industry’s smallest surface mount package
Applications
? Distributed power management
? PCMCIA card power management
? Battery-powered computers, peripherals
? Hand-held bar-code scanners
? Portable communications equipment
Ordering Information
Part Number Temperature Range* Package
MIC94030BM4 –55°C to +150°C SOT-143
MIC94031BM4 –55°C to +150°C SOT-143
* Operating Junction Temperature
Gate
Source
Drain
Substrate
Schematic Symbol MIC94030 MIC94031
Schematic Symbol
Pin Configuration
SOT-143 Package (M4)
Typical PCB Layout
S
D
G
SS
PCB heat sink
plane improves
heat dissipation
PCB traces
G
S
D
SS
~500k?
Internal
gate-to-source
pull-up resistor
G
S
D
SS
Functional Diagrams
Substrate
SourceGate
Drain
P3x
Part
Identification
Part Number Identification
MIC94030BM4 P30
MIC94031BM4 P31
Patents 5,355,008; 5,589,702
相关器件：MIC94030 MIC94030BM4 MIC94031BM4
|
