参数资料
型号: IR3084UMPBF
厂商: International Rectifier
文件页数: 24/47页
文件大小: 0K
描述: IC XPHASE CONTROL 28-MLPQ
标准包装: 100
系列: XPhase™
应用: 处理器
电流 - 电源: 14mA
电源电压: 9.5 V ~ 16 V
工作温度: 0°C ~ 100°C
安装类型: 表面贴装
封装/外壳: 28-MLPQ
供应商设备封装: 28-MLPQ(5x5)
包装: 剪切带 (CT)
IR3084U
System Reference Voltage (VBIAS)
The IR3084U supplies a 6.8V/6mA precision reference voltage from the VBIAS pin. The oscillator ramp trip points
are based on the VBIAS voltage so it should be used to program the Phase ICs phase delay to minimize phase
errors.
Phase IC Gate Driver Bias Regulator / VRHOT Comparator
An internal amplifier can be configured as a gate driver bias regulator to provide programmable gate driver
voltage for phase ICs (Figure 12a), or a thermal monitor to provide VRHOT/VRFAN signal as required in VR11
(Figure 12b).
The internal current source IREGSET whose value is programmed by the switching frequency going through the
external RSET resistor sets the gate driver voltage or the VRHOT/VRFAN threshold voltage. An NTC thermistor
is used to monitor the temperature on the VRM/VRD.
REGSET
VCC
IREGSET
0Adc
REGDRV
+12V
RPU
1ohm / 1206
Q1
CJD200
CVGDRV
RVGDRV
10nF
97.6K
IR3084 CONTROL IC
REGFB
+
C2
10uF
VGDRIVE
Figure 12a – IR3084U Bias Regulator configured for Gate Driver Bias Regulator
RH2
36K
RH1
1.1MEG
+3.3V
R1
10K
VBIAS
VCC
IREGSET
R4
RPU1
2K
VRHOT#
REGSET
REGFB
REGDRV
2K
R5
C2
Q5
2N7002
R2
100K
C1
1nF
IR3084 CONTROL IC
1K
10nF
R3
3K
Figure 12b – IR3084U Bias Regulator configured for VRHOT/VRFAN function
Page 24 of 47
June 1, 2009
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IR3086AMPBF 功能描述:IC PHASE CONTROLLER OVP 20MLPQ RoHS:是 类别:集成电路 (IC) >> PMIC - 电源管理 - 专用 系列:XPhase™ 应用说明:Ultrasound Imaging Systems Application Note 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:37 系列:- 应用:医疗用超声波成像,声纳 电流 - 电源:- 电源电压:2.37 V ~ 6 V 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:56-WFQFN 裸露焊盘 供应商设备封装:56-TQFN-EP(8x8) 包装:管件