收藏本站
AUIRS2336S
Undervoltage Lockout Protection
This IC provides undervoltage lockout protection on both the V CC (logic and low-side circuitry) power supply and the
V BS (high-side circuitry) power supply. Figure 9 is used to illustrate this concept; V CC (or V BS ) is plotted over time and
as the waveform crosses the UVLO threshold (V CCUV+/- or V BSUV+/- ) the undervoltage protection is enabled or
disabled.
Upon power-up, should the V CC voltage fail to reach the V CCUV+ threshold, the IC will not turn-on. Additionally, if the
V CC voltage decreases below the V CCUV- threshold during operation, the undervoltage lockout circuitry will recognize
a fault condition and shutdown the high- and low-side gate drive outputs, and the FAULT pin will transition to the low
state to inform the controller of the fault condition.
Upon power-up, should the V BS voltage fail to reach the V BSUV threshold, the IC will not turn-on the high-side gate
drive output. Additionally, if the V BS voltage decreases below the V BSUV threshold during operation, the undervoltage
lockout circuitry will recognize a fault condition, and shutdown the high-side gate drive outputs of the IC.
The UVLO protection ensures that the IC drives the external power devices only when the gate supply voltage is
sufficient to fully enhance the power devices. Without this feature, the gates of the external power switch could be
driven with a low voltage, resulting in the power switch conducting current while the channel impedance is high; this
could result in very high conduction losses within the power device and could lead to power device failure.
Figure 9: UVLO protection
Shoot-Through Protection
The AUIRS2336S is equipped with shoot-through protection circuitry (also known as cross-conduction prevention
circuitry). Figure 10 shows how this protection circuitry prevents both the high- and low-side switches from
conducting at the same time. Table 1 illustrates the input/output relationship of the devices in the form of a truth
table.
www.irf.com
18
? 2009 International Rectifier
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
AUIRS4426S IC DRIVER LOW SIDE DUAL 8SOIC
AUIRS4427STR IC DRIVER LOW SIDE DUAL 8NSOIC
AUIRS4428S IC DRIVER LOW SIDE DUAL 8SOIC
AWH50G-0202-IDC-R CONN PIN IDC 50POS W/O MT EAR
AWH50G-E232-IDC-R CONN PIN IDC 50POS W/ FLANGE
AWP08-7541-T-R CONN SOCKET IDC 10 POS W/KEY TIN
AWP14-7541-T-R CONN SOCKET IDC 14POS W/STR TIN
AWP2-08-7240-T-R CONN SOCKET IDC 8POS W/KEY GOLD
相关代理商/技术参数
AUIRS2336STR 功能描述:功率驱动器IC 3-Phase Bridge DRVR 600V 200mA 275ns 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
AUIRS44261S 功能描述:功率驱动器IC Dual Low Side DRVR 25V 2.3A 70ns AUTO 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
AUIRS44261STR 功能描述:功率驱动器IC Dual Low Side DRVR 25V 2.3A 70ns AUTO 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
AUIRS4426S 功能描述:功率驱动器IC Dual Low Side DRVR 25V 2.3A 70ns AUTO 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
AUIRS4426STR 功能描述:功率驱动器IC Dual Low Side DRVR 25V 2.3A 70ns AUTO 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
AUIRS4427S 功能描述:功率驱动器IC AUTO GRADE DUAL 6V - 20V Low Side 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
AUIRS4427STR 功能描述:功率驱动器IC AUTO GRADE DUAL 6V - 20V Low Side 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
AUIRS4428S 功能描述:功率驱动器IC AUTO GRADE DUAL 6V - 20V Low Side 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