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參數資料
| 型號： | IR3088AMTR |
| 廠商： | International Rectifier |
| 英文描述： | XPHASETM PHASE IC WITH FAULT AND OVERTEMP DETECT |
| 中文描述： | XPHASETM相集成電路及超溫故障檢測 |
| 文件頁數： | 27/34頁 |
| 文件大?。?/td> | 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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相關代理商/技術參數 |
參數描述 |
|---|---|
| IR3088AMTRPBF | 功能描述:開關變換器、穩(wěn)壓器與控制器 XPHASE IC W/ FAULT OVERTEMP DETECT RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關頻率:1 MHz 工作溫度范圍: 安裝風格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| IR3088APBF | 制造商:IRF 制造商全稱: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 類別:集成電路 (IC) >> PMIC - 電源管理 - 專用 系列:XPhase™ 應用說明:Ultrasound Imaging Systems Application Note 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:37 系列:- 應用:醫(yī)療用超聲波成像，聲納 電流 - 電源:- 電源電壓:2.37 V ~ 6 V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:56-WFQFN 裸露焊盤 供應商設備封裝:56-TQFN-EP（8x8） 包裝:管件 |
| IR3088MPBF | 功能描述:IC CONTROLLER PHASE 20L-MLPQ RoHS:是 類別:集成電路 (IC) >> PMIC - 電源管理 - 專用 系列:XPhase™ 應用說明:Ultrasound Imaging Systems Application Note 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:37 系列:- 應用:醫(yī)療用超聲波成像，聲納 電流 - 電源:- 電源電壓:2.37 V ~ 6 V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:56-WFQFN 裸露焊盤 供應商設備封裝:56-TQFN-EP（8x8） 包裝:管件 |
| IR3088MTR | 制造商:IRF 制造商全稱:International Rectifier 功能描述:XPHASE PHASE IC WITH FAULT AND OVERTEMP DETECT |
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