MCP14E3/MCP14E4/MCP14E5
4.6.2
QUIESCENT POWER DISSIPATION
The power dissipation associated with the quiescent
current draw of the MCP14E3/MCP14E4/MCP14E5
depends upon the state of the input and enable pins.
Refer to the DC Characteristic table for the quiescent
current draw for specific combinations of input and
enable pin states. The quiescent power dissipation is:
EQUATION 4-3:
P Q = ( I QH × D + I QL × ( 1 – D ) ) × V DD
Where:
I QH
D
I QL
V DD
=
=
=
=
Quiescent current in the high
state
Duty cycle
Quiescent current in the low
state
MOSFET driver supply voltage
4.6.3
OPERATING POWER DISSIPATION
The operating power dissipation occurs each time the
MOSFET driver output transitions because for a very
short period of time both MOSFETs in the output stage
are on simultaneously. This cross-conduction current
leads to a power dissipation describes as:
EQUATION 4-4:
P CC = CC × f × V DD
Where:
CC
f
V DD
=
=
=
Cross-conduction constant
(A*sec)
Switching frequency
MOSFET driver supply voltage
DS22062B-page 14
? 2008 Microchip Technology Inc.
相关PDF资料
MCP14E6T-E/MF IC MOSFET DRIVER 2A 8DFN-S
MCP14E9T-E/MF IC MOSFET DRIVER 3A 8DFN-S
MCP1640RD-4ABC BOARD REF DES AAAA BAT BOOST
MCP3906AT-E/SS IC ENERGY METERING 24SSOP
MCP3907T-I/SS IC ENERGY METER W/OSC 24SSOP
MCZ33198EF IC TMOS DRIVER AUTO HISIDE 8SOIC
MCZ33285EFR2 IC TMOS DRIVER DUAL HISIDE 8SOIC
MCZ33927EK IC FET PRE-DRIVER 3PH 54-SOIC
相关代理商/技术参数
MCP14E3T-E/SL 功能描述:功率驱动器IC 4.5A Dual MOSFET Drvr RoHS:否 制造商:Micrel 产品:MOSFET Gate Drivers 类型:Low Cost High or Low Side MOSFET Driver 上升时间: 下降时间: 电源电压-最大:30 V 电源电压-最小:2.75 V 电源电流: 最大功率耗散: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Tube
MCP14E3T-E/SN 功能描述:功率驱动器IC 45A Dual MOSFET Driver RoHS:否 制造商:Micrel 产品:MOSFET Gate Drivers 类型:Low Cost High or Low Side MOSFET Driver 上升时间: 下降时间: 电源电压-最大:30 V 电源电压-最小:2.75 V 电源电流: 最大功率耗散: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Tube
MCP14E3TEMF 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:4.0A Dual High-Speed Power MOSFET Drivers With Enable
MCP14E3TEP 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:4.0A Dual High-Speed Power MOSFET Drivers With Enable
MCP14E3TESN 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:4.0A Dual High-Speed Power MOSFET Drivers With Enable
MCP14E4-E/MF 功能描述:功率驱动器IC 45A Dual MOSFET Driver RoHS:否 制造商:Micrel 产品:MOSFET Gate Drivers 类型:Low Cost High or Low Side MOSFET Driver 上升时间: 下降时间: 电源电压-最大:30 V 电源电压-最小:2.75 V 电源电流: 最大功率耗散: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Tube
MCP14E4-E/P 功能描述:功率驱动器IC 4.5A Dual MOSFET Driver RoHS:否 制造商:Micrel 产品:MOSFET Gate Drivers 类型:Low Cost High or Low Side MOSFET Driver 上升时间: 下降时间: 电源电压-最大:30 V 电源电压-最小:2.75 V 电源电流: 最大功率耗散: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Tube
MCP14E4-E/SL 功能描述:功率驱动器IC 4.5A Dual MOSFET Drvr RoHS:否 制造商:Micrel 产品:MOSFET Gate Drivers 类型:Low Cost High or Low Side MOSFET Driver 上升时间: 下降时间: 电源电压-最大:30 V 电源电压-最小:2.75 V 电源电流: 最大功率耗散: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Tube