参数资料
型号: IR3510MPBF
厂商: International Rectifier
文件页数: 32/36页
文件大小: 0K
描述: IC XPHASE CONTROL 32-MLPQ
标准包装: 100
系列: XPhase™
应用: 处理器
安装类型: 表面贴装
封装/外壳: 32-VFQFN 裸露焊盘
供应商设备封装: 32-MLPQ(5x5)
包装: 剪切带 (CT)
IR3510
Rorset =
Ior max* Rds ( on )
Iorset
Where, Iormax is the max. allowed reverse current which is normally 10% or less of the rated output current.
The constant current source Iorset is the same as Irosc which is determined by the switching frequency.
Fig17. 15 shows the Irosc changing with the Rosc.
A 10nF-22nF cap Cor is recommended between “OR+” and “OR-“ pins and placed close to the IC.
IR3088A Phase IC Componets
Please refer to IR3088A datasheet to select the values for the components around the phase ICs.
Rcs+ and Ccs+ are the two extra components needed for Oring application. Rcs+ is needed to prevent current
sense amplifier output from saturation due to a potential negative voltage swing on the output terminal of the
inductor, which can be caused by the turn-off of the Oring FETs. Ccs+ can be 100pF to eliminate high frequency
noise from current sense input.
In order to balance the offset voltage caused by the input bias current, select Rcs- to be the sum of Rcs+ and
Rcs.
Page 32 of 36
IR Confidential
May 18, 2009
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