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参数资料
| 型号： | IRS21571DSTRPBF |
| 厂商： | International Rectifier |
| 文件页数： | 14/28页 |
| 文件大小： | 0K |
| 描述： | IC BALLAST CONTROL 600V 16SOIC |
| 标准包装： | 2,500 |
| 类型： | 镇流器控制器 |
| 频率： | 43.7 ~ 48.3 kHz |
| 电流 - 电源： | 10mA |
| 电流 - 输出： | 180mA |
| 电源电压： | 11.5 V ~ 15.6 V |
| 工作温度： | -40°C ~ 125°C |
| 封装/外壳： | 16-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 16-SOIC |
| 包装： | 带卷 (TR) |
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IRS21571D
Application Information and Additional Details
Supply Bypassing and PCB Layout Rules
Component selection and placement on the pc board is extremely important when using power control ICs. V CC
should be bypassed to COM as close to the IC terminals as possible with a low ESR/ESL capacitor, as shown in
Figure 1 below.
C VCC (surface mount)
IR21571
pin 1
C BOOT (surface mount)
C VCC (through hole)
Figure 1: Supply bypassing PCB layout example
A rule of thumb for the value of this bypass capacitor is to keep its minimum value at least 2500 times the value of
the total input capacitance (Ciss) of the power transistors being driven. This decoupling capacitor can be split
between a higher valued electrolytic type and a lower valued ceramic type connected in parallel, although a good
quality electrolytic (e.g., 10 μ F) placed immediately adjacent to the VCC and COM terminals will work well.
In a typical application circuit, the supply voltage to the IC is normally derived by means of a high value startup
resistor (1/4W) from the rectified line voltage, in combination with a charge pump from the output of the half-
bridge. With this type of supply arrangement, the internal 15.6V zener clamp diode from VCC to COM will
determine the steady state IC supply voltage.
Connecting the IC Ground (COM) to the Power Ground
Both the low power control circuitry and low side gate driver output stage grounds return to this pin within the IC.
The COM pin should be connected to the bottom terminal of the current sense resistor in the source of the low
side power MOSFET using an individual pc board trace, as shown in Figure 2. In addition, the ground return path
of the timing components and V CC decoupling capacitor should be connected directly to the IC COM pin, and not
via separate traces or jumpers to other ground traces on the board.
IR21571 pin 1
C VCC (surface mount)
C VCC (through hole)
timing
components
R CS (through hole)
V BUS return
Figure 2: COM pin connection PCB layout example
www.irf.com
14
? 2008 International Rectifier
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相关代理商/技术参数 |
参数描述 |
|---|---|
| IRS2158D | 制造商:IRF 制造商全称:International Rectifier 功能描述:Ballast control and half-bridge driver in one IC |
| IRS2158DPBF | 功能描述:功率驱动器IC Ballast Contrl IC 600V fully intgrtd 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 |
| IRS2158DS | 制造商:IRF 制造商全称:International Rectifier 功能描述:Ballast control and half-bridge driver in one IC |
| IRS2158DSPBF | 功能描述:功率驱动器IC 3-Phase Bridge DRVR 600V 180mA 250uA 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 |
| IRS2158DSTRPBF | 功能描述:功率驱动器IC Ballast Contrl IC 600V fully intgrtd 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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