参数资料
型号: IRS2332DSTRPBF
厂商: International Rectifier
文件页数: 17/39页
文件大小: 0K
描述: IC DVR 3-PHASE BRIDGE 28SOIC
标准包装: 1,000
配置: 3 相桥
输入类型: 反相
延迟时间: 500ns
电流 - 峰: 250mA
配置数: 1
输出数: 3
高端电压 - 最大(自引导启动): 600V
电源电压: 10 V ~ 20 V
工作温度: -40°C ~ 125°C
安装类型: 表面贴装
封装/外壳: 28-SOIC(0.295",7.50mm 宽)
供应商设备封装: 28-SOIC W
包装: 带卷 (TR)
IRS233(0,2)(D)(S&J)PbF
Figure 15: IRS233(0,2)(D) input filter characteristic
Figure 16: Difference between the input pulse and the output pulse
Integrated Bootstrap Functionality
The new IRS233(0,2)D family features integrated high-voltage bootstrap MOSFETs that eliminate the need of the external
bootstrap diodes and resistors in many applications.
There is one bootstrap MOSFET for each high-side output channel and it is connected between the V CC supply and its
respective floating supply (i.e., V B1 , V B2 , V B3 ); see Figure 17 for an illustration of this internal connection.
The integrated bootstrap MOSFET is turned on only during the time when LO is ‘high’, and it has a limited source current due
to R BS . The V BS voltage will be charged each cycle depending on the on-time of LO and the value of the C BS capacitor, the
drain-source (collector-emitter) drop of the external IGBT (or MOSFET), and the low-side free-wheeling diode drop.
The bootstrap MOSFET of each channel follows the state of the respective low-side output stage (i.e., the bootstrap MOSFET
is ON when LO is high, it is OFF when LO is low), unless the V B voltage is higher than approximately 110% of V CC . In that
case, the bootstrap MOSFET is designed to remain off until V B returns below that threshold; this concept is illustrated in Figure
18.
www.irf.com
17
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