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| 型号： | MIC4102YM |
| 厂商： | Micrel Inc |
| 文件页数： | 9/17页 |
| 文件大小： | 0K |
| 描述： | IC DRIVER MOSFET 100V TTL 8SOIC |
| 标准包装： | 95 |
| 配置： | 半桥 |
| 输入类型： | PWM |
| 延迟时间： | 30ns |
| 电流 - 峰： | 2A |
| 配置数： | 1 |
| 输出数： | 2 |
| 高端电压 - 最大（自引导启动）： | 118V |
| 电源电压： | 9 V ~ 16 V |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SOIC |
| 包装： | 管件 |
| 产品目录页面： | 1109 (CN2011-ZH PDF) |
| 其它名称： | 576-1184 |
Micrel, Inc.
Functional Diagram
HB
2
H V
MIC4102
PWM
5
V DD
1
UVLO
UVLO
LEVEL
SHIFT
LEVEL
SHIFT
DRIVER
DRIVER
HO
3
HS
4
LO
8
LS
6
V SS
7
Figure 1. MIC4102 Functional Block Diagram
Functional Description
The MIC4102 is a high voltage, non-inverting,
synchronous MOSFET driver that uses a single PWM
input signal to alternately drive both high-side and low-
side N-Channel MOSFETs. The block diagram of the
MIC4102 is shown in Figure 1.
The MIC4102 input is TTL compatible. The high-side
output buffer includes a high speed level-shifting circuit
that is referenced to the HS pin. An internal diode is
used as part of a bootstrap circuit to provide the drive
voltage for the high-side output.
Startup and UVLO
The UVLO circuit forces both driver outputs low until the
supply voltage exceeds the UVLO threshold. The low-
side UVLO circuit monitors the voltage between the VDD
and VSS pins. The high-side UVLO circuit monitors the
voltage between the HB and HS pins. Hysteresis in the
UVLO circuit prevents noise and finite circuit impedance
from causing chatter during turn-on.
The VDD pin voltage is supplied to the HS pin through
PWM input pin is referenced to the VSS pin. The
voltage state of the input signal does not change the
quiescent current draw of the driver. The threshold level
is independent of the VDD supply voltage and there is
no dependence between I VDD and the input signal
amplitude. This feature makes the MIC4102 an
excellent level translator that will drive high threshold
MOSFETs from a low voltage PWM IC.
Low-Side Driver
A block diagram of the low-side driver is shown in Figure
2. The low-side driver is designed to drive a ground
(Vss pin) referenced N-channel MOSFET. Low driver
impedances allow the external MOSFET to be turned on
and off quickly. The rail-to-rail drive capability of the
output ensures a low Rdson from the external MOSFET.
A low level applied to PWM pin will cause the HO output
to go low and the LO output to go high. The upper driver
FET turns on and Vdd is applied to the gate of the
external MOSFET. A high level on the PWM pin forces
the LO output low by turning off the upper driver and
turning on the lower driver which ground the gate of the
the internal bootstrap diode.
The HB pin voltage will
external MOSFET.
always be a diode drop less than VDD.
Input Stage
The MIC4102 utilizes a TTL compatible input stage. The
Pulling the LS pin low disables the LO pin.
November 2006
9
M9999-112806
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MIC4102YM TR | 功能描述:功率驱动器IC 100V HalfBridge MOSFET Driver with Anti-Shoot-through Circuitry(Lead Free) 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 |
| MIC4103 | 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:100V Half Bridge MOSFET Drivers 3/2A Sinking/Sourcing Current |
| MIC4103_10 | 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:100V Half Bridge MOSFET Drivers 3/2A Sinking/Sourcing Current |
| MIC4103YM | 功能描述:功率驱动器IC 100V Half Bridge driver, 3/2A sink/Source 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 |
| MIC4103YM TR | 功能描述:功率驱动器IC 100V Half Bridge driver, 3/2A sink/Source 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 |
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