收藏本站
MIC4416/4417
Functional Diagram
V SUPPLY
VS
0.6mA
V SWITCHED
Micrel, Inc.
0.3mA
MIC4417
CTL
D1
R1
2k
D4
Q1
Q2
INVERTING
Q3
G
Logic-Level
Input
D2
D3
35V
D5
MIC4416
NONINVERTING
Q4
GND
Functional Diagram with External Components
Functional Description
Refer to the functional diagram.
The MIC4416 is a noninverting driver. A logic high on the CTL
(control) input produces gate drive output. The MIC4417 is
an inverting driver. A logic low on the CTL (control) input
produces gate drive output. The G (gate) output is used to
turn on an external N-channel MOSFET.
Supply
VS (supply) is rated for +4.5V to +18V. External capacitors
are recommended to decouple noise.
Control
CTL (control) is a TTL-compatible input. CTL must be forced
high or low by an external signal. A floating input will cause
unpredictable operation.
A high input turns on Q1, which sinks the output of the 0.3mA
and the 0.6mA current source, forcing the input of the first
inverter low.
Hysteresis
The control threshold voltage, when CTL is rising, is slightly
higher than the control threshold voltage when CTL is falling.
When CTL is low, Q2 is on, which applies the additional
0.6mA current source to Q1. Forcing CTL high turns on Q1
which must sink 0.9mA from the two current sources. The
higher current through Q1 causes a larger drain-to-source
voltage drop across Q1. A slightly higher control voltage is
required to pull the input of the first inverter down to its
threshold.
Q2 turns off after the first inverter output goes high. This
reduces the current through Q1 to 0.3mA. The lower current
reduces the drain-to-source voltage drop across Q1. A
slightly lower control voltage will pull the input of the first
inverter up to its threshold.
Drivers
The second (optional) inverter permits the driver to be manu-
factured in inverting and noninverting versions.
The last inverter functions as a driver for the output MOSFETs
Q3 and Q4.
Gate Output
G (gate) is designed to drive a capacitive load. V G (gate
output voltage) is either approximately the supply voltage or
approximately ground, depending on the logic state applied
to CTL.
If CTL is high, and VS (supply) drops to zero, the gate output
will be floating (unpredictable).
ESD Protection
D1 protects VS from negative ESD voltages. D2 and D3
clamp positive and negative ESD voltages applied to CTL.
R1 isolates the gate of Q1 from sudden changes on the CTL
input. D4 and D5 prevent Q1’s gate voltage from exceeding
the supply voltage or going below ground.
May 2005
7
MIC4416/4417
发布紧急采购，3分钟左右您将得到回复。

采购需求

(若只采购一条型号，填写一行即可)

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

*型号 *数量 厂商 批号 封装
添加更多采购

我的联系方式

*
*
*
相关PDF资料
MIC4420ZT IC DRIVER MOSFET 6A LS TO-220-5
MIC4422AYN IC DRIVER MOSFET 9A LS 8-DIP
MIC4422ZT IC DRIVER MOSFET 9A LS TO-220-5
MIC4424YWM IC DRIVER MOSFET 3A DUAL 16-SOIC
MIC4427YM IC DRIVER MOSFET DUAL 1.5A 8SOIC
MIC4451ZT IC DRIVER MOSFET 12A HS TO220-5
MIC4467YWM IC DRIVER MOSF QUAD 1.2A 16-SOIC
MIC44F19YMME IC MOSFET DRIVER 6A HS 8-MSOP
相关代理商/技术参数
MIC4417YM4TR 制造商:Micrel 功能描述:MOSFET Driver 1.2A 1-Out Lo Side Inv
MIC4417YM4-TR 功能描述:IC DRIVER MOSF LOW SIDE SOT143-4 制造商:microchip technology 系列:IttyBitty? 包装:剪切带（CT） 零件状态:有效 驱动配置:低压侧 通道类型:单路 驱动器数:1 栅极类型:N 沟道 MOSFET 电压 - 电源:4.5 V ~ 18 V 逻辑电压?- VIL，VIH:0.8V，2.4V 电流 - 峰值输出（灌入，拉出）:1.2A，1.2A 输入类型:反相 高压侧电压 - 最大值（自举）:- 上升/下降时间（典型值）:14ns，16ns 工作温度:-40°C ~ 150°C（TJ） 安装类型:表面贴装 封装/外壳:TO-253-4，TO-253AA 供应商器件封装:SOT-143 标准包装:1
MIC4420 制造商:MIC 制造商全称:MIC GROUP RECTIFIERS 功能描述:6A-Peak Low-Side MOSFET Driver Bipolar/CMOS/DMOS Process
MIC4420_05 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:6A-Peak Low-Side MOSFET Driver
MIC4420_11 制造商:MIC 制造商全称:MIC GROUP RECTIFIERS 功能描述:6A-Peak Low-Side MOSFET Driver Bipolar/CMOS/DMOS Process
MIC4420BM 功能描述:IC DRIVER MOSFET 6A LOSIDE 8SOIC RoHS:否 类别:集成电路 (IC) >> PMIC - MOSFET，电桥驱动器 - 外部开关 系列:- 标准包装:50 系列:- 配置:高端 输入类型:非反相 延迟时间:200ns 电流 - 峰:250mA 配置数:1 输出数:1 高端电压 - 最大（自引导启动）:600V 电源电压:12 V ~ 20 V 工作温度:-40°C ~ 125°C 安装类型:通孔 封装/外壳:8-DIP（0.300"，7.62mm） 供应商设备封装:8-DIP 包装:管件 其它名称:*IR2127
MIC4420BM TR 功能描述:IC DRIVER MOSFET 6A LOSIDE 8SOIC RoHS:是 类别:集成电路 (IC) >> PMIC - MOSFET，电桥驱动器 - 外部开关 系列:- 标准包装:50 系列:- 配置:高端 输入类型:非反相 延迟时间:200ns 电流 - 峰:250mA 配置数:1 输出数:1 高端电压 - 最大（自引导启动）:600V 电源电压:12 V ~ 20 V 工作温度:-40°C ~ 125°C 安装类型:通孔 封装/外壳:8-DIP（0.300"，7.62mm） 供应商设备封装:8-DIP 包装:管件 其它名称:*IR2127
MIC4420BMM 功能描述:IC DRIVER MOSFET 6A LS 8-MSOP RoHS:否 类别:集成电路 (IC) >> PMIC - MOSFET，电桥驱动器 - 外部开关 系列:- 标准包装:50 系列:- 配置:高端 输入类型:非反相 延迟时间:200ns 电流 - 峰:250mA 配置数:1 输出数:1 高端电压 - 最大（自引导启动）:600V 电源电压:12 V ~ 20 V 工作温度:-40°C ~ 125°C 安装类型:通孔 封装/外壳:8-DIP（0.300"，7.62mm） 供应商设备封装:8-DIP 包装:管件 其它名称:*IR2127