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| 型号： | FAN7384MX |
| 厂商： | Fairchild Semiconductor |
| 文件页数： | 14/17页 |
| 文件大小： | 0K |
| 描述： | IC DRIVER GATE HALF BRIDGE 14SOP |
| 标准包装： | 1 |
| 配置： | 半桥 |
| 输入类型： | 非反相 |
| 延迟时间： | 180ns |
| 电流 - 峰： | 250mA |
| 配置数： | 1 |
| 输出数： | 2 |
| 高端电压 - 最大（自引导启动）： | 600V |
| 电源电压： | 13 V ~ 20 V |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 14-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 14-SOP |
| 包装： | 标准包装 |
| 产品目录页面： | 1216 (CN2011-ZH PDF) |
| 其它名称： | FAN7384MXDKR |
Typical Application Information
1. Protection Function
1.1 Under-Voltage Lockout (UVLO)
The high- and low-side drivers include under-voltage
lockout (UVLO) protection circuitry that monitors the
supply voltage (V DD ) and bootstrap capacitor voltage
(V BS ) independently. It can be designed to prevent
malfunction when V DD and V BS are lower than the
specified threshold voltage. Moreover, the UVLO
hysteresis prevents chattering during power supply
transitions. If the supply voltage (V DD ) maintains an
under-voltage condition over under-voltage filtering times
(typically 16μs), the fault and soft-off circuits are
activated, as shown Figure 34.
HIN/LIN
LIN/HIN
HO/LO
LO/HO
Shoot-Through Prevent
After DT
FAN7384 Rev.01
LIN
Figure 36. Waveforms for Shoot-Through Prevention
V DD
t UVFLT
UVLO+
UVLO-
1.3 Over-Current Protection Function
The FAN7384 has over-current detection circuitry that
monitors the current-by-current sensing resistor con-
FO
t CSCFO
t FO
nected from the low-side switch source (V SL ) to ground.
It is a built-in time-filler from the over-current event to
LO
t CSCLO
90%
prevent malfunction from a noise source, such as lead-
ing-edge pulse in inductive load application, as shown
Figure 37.
FAN7384 Rev.01
t 1
t 2
t 3
The sensing current is calculated as follows:
Figure 34. Waveforms for Under-Voltage Lockout
I CS ?
V CSCREF
R CS
[ A]
(1)
1.2 Shoot-Through Prevention Function
The FAN7384 has a shoot-through prevention circuitry
that monitors the high- and low-side inputs. It can be
designed to prevent outputs of high- and low-side turning
on at same time, as shown Figure 35 and 36.
where,
V CSCREF : Reference voltage of current sense
comparator
R CS : Current sensing resistor
HIN/LIN
LIN
LIN/HIN
Low-Side Output
Disable
Shoot-Through Prevent
V CSC
0.5V
HO/LO
After DT
FO
t CSCFO
t FO
t CSCLO
LO/HO
After DT
FAN7384 Rev.01
LO
Short-Circuit
Detection Point
Soft-Off
Operating
FAN7384 Rev.03
Figure 35. Waveforms for Shoot-Through Prevention
? 2006 Fairchild Semiconductor Corporation
FAN7384 Rev. 1.0.8
14
Figure 37. Waveforms for Short-Circuit Protection
www.fairchildsemi.com
相关PDF资料 |
PDF描述 |
|---|---|
| FAN7385MX | IC GATE DRIVER HISIDE 2CH 14-SOP |
| FAN7388MX | IC GATE DRIVER HALF BRIDG 20SOIC |
| FAN73892MX | IC GATE DVR HALF BRDG 3PH 28SOIC |
| FAN7389MX | IC GATE-DRIVE 3PH HALFBRDG 24SOP |
| FAN73901M | IC GATE DRIVER HI/LOW SIDE 8SOIC |
相关代理商/技术参数 |
参数描述 |
|---|---|
| FAN7385 | 制造商:FAIRCHILD 制造商全称:Fairchild Semiconductor 功能描述:Dual-Channel High-Side Gate-Drive IC |
| FAN7385M | 功能描述:功率驱动器IC 2-Ch High Side Only Gate 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 |
| FAN7385MX | 功能描述:功率驱动器IC 2Ch High Side Only Gate 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 |
| FAN7387 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Fairchild Semiconductor Corporation 功能描述: |
| FAN7387M | 功能描述:功率驱动器IC Half-Bridge Gate 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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