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参数资料
| 型号： | IR3088AMTR |
| 厂商： | International Rectifier |
| 英文描述： | XPHASETM PHASE IC WITH FAULT AND OVERTEMP DETECT |
| 中文描述： | XPHASETM相集成电路及超温故障检测 |
| 文件页数： | 19/34页 |
| 文件大小： | 1264K |
| 代理商： | IR3088AMTR |
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页当前第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页
IR3088A
2
2
)
*
*
*
2
1
*
)
2
C
C
O
PWMRMP
V
FB
C
E
E
C
CP
R
f
V
R
C
L
f
R
π
π
+
=
(27)
CP
E
E
CP
R
C
L
C
=
10
(28)
C
CP1
is optional and may be needed in some applications to reduce the jitter caused by the high frequency noise. A
ceramic capacitor between 10pF and 220pF is usually enough.
Type III Compensation for AVP Applications
Determine the compensation at no load, the worst case condition. Assume the time constant of the resistor and
capacitor across the output inductors matches that of the inductor, the crossover frequency and phase margin of the
voltage loop can be estimated by Equations (29) and (30), where R
LE
is the equivalent resistance of inductor DCR.
R
f
*
*
2
π
180
)
tan(
90
1
=
A
C
LE
FB
CS
E
DRP
C
R
R
G
C
=
1
(29)
π
θ
(30)
Choose the desired crossover frequency fc around fc1 estimated by Equation (29) or choose fc between 1/10 and
1/5 of the switching frequency per phase, and select the components to ensure the slope of close loop gain is -20dB
/Dec around the crossover frequency. Choose resistor R
FB1
according to Equation (31), and determine C
FB
and
R
DRP
from Equations (32) and (33).
1
1
=
to
FB
FB
R
R
3
1
FB
R
f
π
C
R
R
C
=
FB
FB
R
R
2
2
1
=
(31)
1
4
FB
C
C
=
(32)
DRP
FB
FB
FB
DRP
R
+
)
(
1
(33)
R
CP
and C
CP
have limited effect on the crossover frequency, and are used only to fine tune the crossover frequency
and transient load response. Determine R
CP
and C
CP
from Equations (34) and (35).
V
R
C
L
f
R
=
O
PWMRMP
FB
E
E
C
CP
V
2
)
2
π
(34)
CP
E
E
CP
R
C
L
C
=
10
(35)
C
CP1
is optional and may be needed in some applications to reduce the jitter caused by the high frequency noise. A
ceramic capacitor between 10pF and 220pF is usually enough.
Type III Compensation for Non-AVP Applications
Resistor R
FB
is chosen according to Equations (15), and resistor R
DRP
and capacitor C
DRP
are not needed. Choose
the crossover frequency fc between 1/10 and 1/5 of the switching frequency per phase and select the desired phase
margin
θ
c. Calculate K factor from Equation (36), and determine the component values based on Equations (37) to
(41),
θ
π
)]
5
+
180
(
4
tan[
=
C
K
(36)
Page 19 of 34
9/30
/04
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相关代理商/技术参数 |
参数描述 |
|---|---|
| IR3088AMTRPBF | 功能描述:开关变换器、稳压器与控制器 XPHASE IC W/ FAULT OVERTEMP DETECT RoHS:否 制造商:Texas Instruments 输出电压:1.2 V to 10 V 输出电流:300 mA 输出功率: 输入电压:3 V to 17 V 开关频率:1 MHz 工作温度范围: 安装风格:SMD/SMT 封装 / 箱体:WSON-8 封装:Reel |
| IR3088APBF | 制造商:IRF 制造商全称:International Rectifier 功能描述:XPHASETM PHASE IC WITH FAULT AND OVERTEMP DETECT |
| IR3088M | 功能描述:IC XPHASE W/FAULT DET 20L-MLPQ RoHS:否 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 |
| IR3088MPBF | 功能描述:IC CONTROLLER PHASE 20L-MLPQ 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 |
| IR3088MTR | 制造商:IRF 制造商全称:International Rectifier 功能描述:XPHASE PHASE IC WITH FAULT AND OVERTEMP DETECT |
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