参数资料
型号: IR3523MTRPBF
厂商: International Rectifier
文件页数: 10/37页
文件大小: 0K
描述: IC XPHASE3 CTLR VR11.1 40-MLPQ
标准包装: 3,000
系列: XPhase3™
应用: 处理器
电流 - 电源: 10mA
电源电压: 4.75 V ~ 7.5 V
工作温度: 0°C ~ 100°C
安装类型: 表面贴装
封装/外壳: 40-MLPQ
供应商设备封装: 40-MLPQ(6x6)
包装: 带卷 (TR)
IR3523
SYSTEM SET POINT TEST
Converter output voltage is determined by the system set point voltage which is the voltage that appears at the
FBx pins when the converter is in regulation. The set point voltage includes error terms for the VDAC digital-to-
analog converters, Error Amp input offsets, and Remote Sense input offsets. The voltage appearing at the
VDACx pins is not the system set point voltage. System set point voltage test circuits for Outputs 1 and 2 are
shown in Figures 4A & 4B.
ERROR
IR3523
VDAC
AMPLIFIER
EAOUT1
BUFFER
AMPLIFIER
FB1
"FAST"
VDAC
ISOURCE
VDAC1
ISINK
IFB1
IOCSET1
OCSET1
ROCSET
IROSC
IROSC
RVDAC
CVDAC
ROSC BUFFER
IROSC
CURRENT
SOURCE
AMPLIFIER
1.2V
LGND
GENERATOR
ROSC
VOUT1
RROSC2
SYSTEM
REMOTE SENSE
AMPLIFIER
VOSEN1+
VOSEN1-
Figure 4A - Output 1 System Set Point Test Circuit
ERROR
EAOUT
VOSNS-
SET POINT
VOLTAGE
IR3523
VDAC
AMPLIFIER
EAOUT2
BUFFER
AMPLIFIER
FB2
"FAST"
VDAC
ISOURCE
VDAC2
ISINK
IROSC
IOCSET1
OCSET2
ROCSET3
RVDAC3
CVDAC3
ROSC BUFFER
IROSC
CURRENT
SOURCE
AMPLIFIER
1.2V
LGND
GENERATOR
ROSC
VOUT2
RROSC3
SYSTEM
Page 10 of 37
REMOTE SENSE
AMPLIFIER
VOSEN2+
VOSEN2-
Figure 4B - Output 2 System Set Point Test Circuit
EAOUT
VOSNS-
SET POINT
VOLTAGE
June 20, 2008
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