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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： | 27/34页 |
| 文件大小： | 1264K |
| 代理商： | IR3088AMTR |
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IR3088A
Body Braking Related Resistors
R
BBFB
and
R
BBDRP
N/A. The body braking during Dynamic VID is disabled.
IR3088A EXTERNAL COMPONENTS
PWM Ramp Resistor
R
PWMRMP
and Capacitor C
PWMRMP
Set PWM ramp magnitude V
PWMRMP
=0.75V. Choose 100pF for PWM ramp capacitor C
PWMRMP
, and calculate the
resistor R
PWMRMP
,
V
R
)]
ln(
)
[ln(
*
*
*
PWMRMP
V
DAC
V
IN
DAC
V
IN
PWMRMP
SW
IN
O
PWMRMP
V
V
C
f
V
=
=
k
2
18
)]
75
.
3
12
ln(
)
12
[ln(
12
10
*
100
3
10
*
800
12
28
.
=
Inductor Current Sensing Capacitor
C
CS+
and Resistors
R
CS+
and
R
CS-
Choose 47nF for capacitor C
CS+,
and calculate R
CS+,
R
L
R
CS
10
*
47
The bias currents of CSIN+ and CSIN- are 0.25uA and 0.4uA respectively. Calculate resistor R
CS-
,
=
=
+
k
R
R
CS
CS
22
.
Combined Over Temperature and Phase Delay Setting Resistors
R
PHASEx1
,
R
PHASEx2
and
R
PHASEx3
The over temperature setting resistor divider is combined with the phase delay resistor divider. Set the temperature
threshold at 115 oC, which corresponds to the IC die temperature of 116 oC, and calculate the HOTSET threshold
voltage corresponding to the temperature thresholds.
T
V
J
HOTSET
.
241
.
116
10
*
73
.
241
.
10
*
73
.
=
+
=
+
=
The phase delay resistor ratios for phases 1 to 6 at 800kHz of switching frequencies are RA
PHASE1
=0.665,
RA
PHASE2
=0.432, RA
PHASE3
=0.198, RA
PHASE4
=0.206, RA
PHASE5
=0.401 and RA
PHASE6
=0.597 starting from down-
slope.
The over temperature setting voltage of phases 1, 2, 5, and 6 is lower than the phase delay setting voltage,
VBIAS*RA
PHASEx.
Pre-select R
PHASE11
=10k
,
=
RA
V
PHASEx
BIAS
1
8
)
1
=
RA
V
PHASEx
BIAS
)
665
.
1
*
8
)
1
*
R
PHASE21
=10k
, R
PHASE22
=2.94k
, R
PHASE23
=4.64k
R
PHASE51
=10k
, R
PHASE52
=2.32k
, R
PHASE53
=4.42k
R
PHASE61
=10k
, R
PHASE62
=8.25k
, R
PHASE63
=6.49k
=
=
=
+
+
k
C
L
CS
22
.
)
10
*
5
/(
10
*
100
9
3
9
V
79
3
3
=
=
k
R
V
V
RA
R
PHASEx
HOTSET
BIAS
PHASEx
PHASEx
1
12
)
665
.
10
*
10
)
79
.
8
665
.
*
)
(
3
1
2
=
=
k
R
V
R
PHASEx
HOTSET
PHASEx
87
.
10
*
1
12
79
.
3
1
3
Page 27 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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