参数资料
型号: IR3084AMPBF
厂商: International Rectifier
文件页数: 1/45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)
IR3084A
XPHASE
TM
DATA SHEET
VR 10/11 CONTROL IC
DESCRIPTION
The IR3084A Control IC combined with an IR XPhase TM Phase IC provides a full featured and flexible
way to implement a complete VR10 or VR11 power solution. The “Control” IC provides overall system
control and interfaces with any number of “Phase” ICs which each drive and monitor a single phase of a
multiphase converter. The X Phase TM architecture results in a power supply that is smaller, less
expensive, and easier to design while providing higher efficiency than conventional approaches.
FEATURES
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1 to X phase operation with matching Phase IC
Supports both VR11 8-bit VID code and extended VR10 7-bit VID code
0.5% Overall System Setpoint Accuracy
VID Select pin sets the DAC to either VR10 or VR11
VID Select pin selects either VR11 or legacy VR10 type startups
Programmable VID offset and Load Line output impedance
Programmable VID offset function at the Error Amp’s non-inverting input allowing zero offset
Programmable Dynamic VID Slew Rate
±300mV Differential Remote Sense
Programmable 150kHz to 1MHz oscillator
Enable Input with 0.85V threshold and 100mV of hysteresis
VR Ready output provides indication of proper operation and avoids false triggering
Phase IC Gate Driver Bias Regulator / VRHOT Comparator
Operates from 12V input with 9.9V Under-Voltage Lockout
6.9V/6mA Bias Regulator provides System Reference Voltage
Programmable Hiccup Over-Current Protection with Delay to prevent false triggering
Small thermally enhanced 5mm x 5mm, 28 pin MLPQ package
TYPICAL APPLICATION CIRCUIT
CCP1
100pF
EA
RT2
R117
+5.0V
4.7K, B=4450 1.21K
RFB1
CFB
RCP
2.49K
CCP
56nF
R137
2K
VREG_12V_FILTERED
R1331
1
Q4
CJD200
VGDRIVE
VCC_SENSE
162
10nF
17
FB
18
EAOUT VRRDY
27
VR_RDY
C204
0.1uF
C135
1uF
VSS_SENSE
C1009
100pF
RFB
324
RDRP
787
16
IIN
RMPOUT
VBIAS
IR3084MTR
VDRP
REGDRV
15
19
20
24
C134
0.1uF
C89
100pF
ISHARE
RMP
VBIAS
OUTEN
VID0
VID1
VID2
VID3
VID4
VID5
VID6
VID7
VID_SEL
VREG_12V_FILTERED
R30
10
C130
0.1uF
28
9
8
7
6
5
4
3
2
1
21
26
CSS/DEL
0.1uF
ENABLE
VID0
VID1
VID2
VID3
VID4
VID5
VID6
VID7
VIDSEL
VCC
SS/DEL
VOSNS--
REGFB
REGSET
VSETPT
OCSET
VDAC
ROSC
LGND
23
25
14
13
12
11
22
RVSETPT
124
ROCSET
15.8K
ROSC 30.1K
RVGDRV
97.6K
RVDAC
3.5
CVGDRV
10nF
VDAC
CVDAC
33nF
10
Page 1 of 45
3/3/2009
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