参数资料
| 型号： | NCP5392TMNR2G |
| 厂商： | ON Semiconductor |
| 文件页数： | 24/30页 |
| 文件大小： | 0K |
| 描述： | IC PHASE CONTROLLER 2/3/4 40-QFN |
| 标准包装： | 1 |
| 应用： | 控制器，Intel VR11，VR11.1，AMD CPU |
| 输入电压： | 4.75 V ~ 5.25 V |
| 输出数： | 4 |
| 输出电压： | 0.375 V ~ 1.6 V |
| 工作温度： | 0°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 40-VFQFN 裸露焊盘 |
| 供应商设备封装： | 40-QFN（6x6） |
| 包装： | 标准包装 |
| 其它名称： | NCP5392TMNR2GOSDKR |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页当前第24页第25页第26页第27页第28页第29页第30页
NCP5392T
Zout Open Loop
Zout Closed Loop
Open Loop Gain with Current Loop Closed
Voltage Loop Compensation Gain
80
60
40
20
0
--20
--40
--60
--80
1mOhm
--100
100
1000
10000
100000
1000000
10000000
Frequency
Figure 14. NCP5392T Circuit Frequency Response
1 1
=
2 π ? (RBRD + ESR Bulk ) ? C Bulk
2 π ? CF ? RF
=
RFB
+
--
1.3 V
Droop
RDRP
PWM
Amp
Comparator
RNOR
RISO1
RSUM
+
RL
+
Gain = 1
V out R FB ? DCR ? A CSSUM ? A DRP
I out
R DRP
R FB ? DCR ? A CSSUM ? A DRP
R DRP = (eq. 13)
The goal is to compensate the system such that the
resulting gain generates constant output impedance from
DC up to the frequency where the ceramic takes over
holding the impedance below 1.0 m Ω . See the example of
the locations of the poles and zeros that were set to optimize
the model above.
By matching the following equations a good set of
starting compensation values can be found for a typical
mixed bulk and ceramic capacitor type output filter.
(eq. 10)
(eq. 11)
1 1
2 π ? CFB1 ? (RFB1 + RFB) 2 π ? C Cer ? (RBRD + ESR Bulk )
R FB should be set to provide optimal thermal
compensation in conjunction with thermistor R T2 , R ISO1
and R ISO2 . With R FB set to 1.0 k Ω , R FB1 is usually set to
100 Ω for maximum phase boost, and the value of RF is
typically set to 3.0 k Ω .
Droop Injection and Thermal Compensation
The VDRP signal is generated by summing the sensed
output currents for each phase. A droop amplifier is added
to adjust the total gain to approximately eight. VDRP is
externally summed into the feedback network by the
resistor RDRP. This introduces an offset which is
proportional to the output current thereby forcing a
controlled, resistive output impedance.
CH
RFB1 CFB1 RF CF
I Bias
--
+
Error
Amp
RISO2 +
--
RT
1.3 V
Gain = 4
--
+
CSSUM
Amp
RSx 1.3 V
+
--
CSx
Figure 15. Droop Injection and Thermal
Compensation
RDRP determines the target output impedance by the
basic equation:
= Z out = (eq. 12)
Z out
The value of the inductor ’s DCR is a function of
temperature according to the Equation 14:
DCR (T) = DCR 25C ? (1 + 0.00393 ? (T ? 25)) (eq. 14)
http://onsemi.com
24
相关PDF资料 |
PDF描述 |
|---|---|
| NCP5393BMNR2G | IC CTLR 2/3/4PHASE CPU 48QFN |
| NCP5395GMNR2G | IC PHASE CONTROLLER 2/3/4 48-QFN |
| NCP5395MNR2G | IC PHASE CONTROLLER 2/3/4 48-QFN |
| NCP5395TMNR2G | IC PHASE CONTROLLER 2/3/4 48-QFN |
| NCP5422ADR2 | IC REG CTRLR BUCK PWM 16-SOIC |
相关代理商/技术参数 |
参数描述 |
|---|---|
| NCP5393 | 制造商:ONSEMI 制造商全称:ON Semiconductor 功能描述:2/3/4-Phase Controller for CPU Applications |
| NCP5393A | 制造商:ONSEMI 制造商全称:ON Semiconductor 功能描述:2/3/4-Phase Controller for CPU Applications |
| NCP5393AMNR2G | 功能描述:IC PHASE CONTROLLER 2/3/4 48-QFN RoHS:是 类别:集成电路 (IC) >> PMIC - 电源管理 - 专用 系列:- 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 |
| NCP5393B | 制造商:ONSEMI 制造商全称:ON Semiconductor 功能描述:2/3/4-Phase Controller for CPU Applications |
| NCP5393BMNR2G | 功能描述:DC/DC 开关控制器 2/3/4 PHASE CONTROL RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
发布紧急采购，3分钟左右您将得到回复。