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参数资料
| 型号： | IR3080MTR |
| 厂商： | International Rectifier |
| 英文描述： | XPHASE VRD10 CONTROL IC WITH VCCVID & OVERTEMP DETECT |
| 中文描述： | XPHASE VRD10控制集成电路VCCVID |
| 文件页数： | 30/41页 |
| 文件大小： | 2267K |
| 代理商： | IR3080MTR |
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IR3080
The phase delay resistor ratios for phases 1 to 6 at 400kHz of switching frequencies are RA
PHASE1
=0.628,
RA
PHASE2
=0.415, RA
PHASE3
=0.202, RA
PHASE4
=0.246, RA
PHASE5
=0.441 and RA
PHASE6
=0.637 starting from down-
slope. Pre-select R
PHASE11
=R
PHASE21
=R
PHASE31
=R
PHASE41
=R
PHASE51
= R
PHASE61
=10k
,
RA
R
PHASE
PHASE
628
.
1
1
1
R
PHASE22
=7.15k
, R
PHASE32
=2.55k
, R
PHASE42
=3.24k
, P
PHASE52
=7.87k
, R
PHASE62
=17.4k
Bootstrap Capacitor C
BST
Choose C
BST
=0.1uF
Decoupling Capacitors for Phase IC and Power Stage
Choose C
VCC
=0.1uF, C
VCCL
=0.1uF
=
=
=
k
R
RA
PHASE
PHASE
9
16
10
*
10
628
.
3
11
1
12
VOLTAGE LOOP COMPENSATION
Type II compensation is used for the converter with AL-Polymer output capacitors. Choose the crossover frequency
fc=40kHz, which is 1/10 of the switching frequency per phase, and determine Rcp and C
CP
.
=
+
R
C
f
V
C
C
O
2
1
*
)
10
20
35
.
)
*
*
*
2
1
*
π
=
=
+
=
k
V
R
C
L
f
R
RAMP
2
FB
E
E
C
CP
0
)
10
*
7
*
10
*
560
*
10
*
40
*
8
365
)
10
10
560
(
)
10
220
(
)
10
40
2
)
2
2
3
6
3
3
6
9
2
3
2
π
π
π
nF
R
C
L
C
CP
E
E
CP
71
10
0
)
10
*
10
560
(
3
)
/
10
220
(
10
10
6
9
=
=
, Choose C
CP
=68nF
Choose C
CP1
=47pF to reduce high frequency noise.
CURRENT SHARE LOOP COMPENSATION
The crossover frequency of the current share loop f
CI
should be at least one decade lower than that of the voltage
loop f
C
. Choose the crossover frequency of current share loop f
CI
=4kHz
,
and calculate C
SCOMP
,
10
*
220
*
10
*
2
16
)
(
*
)
(
DAC
I
DAC
PWMRMP
I
V
V
V
V
V
*
2
1
*
*
*
*
*
65
.
LE
ROOM
CS
O
I
PWMRMP
SCOMP
f
V
π
011
.
)
35
.
12
(
*
)
35
.
8
12
(
8
*
10
*
400
*
*
*
*
3
12
3
=
=
=
PWMRMP
SW
PWMRMP
PWMRMP
R
MI
V
f
C
F
6
_
10
*
05
.
*
2
*
)]
(
*
*
CI
O
MI
O
O
E
CI
F
I
V
C
f
R
G
I
V
R
C
+
=
π
6
3
4
4
6
3
3
3
10
*
05
.
*
10
*
4
2
)
10
*
1
*
105
33
.
011
.
*
105
)
10
*
1
*
105
33
.
*
10
*
10
*
560
*
10
π
*
4
*
2
1
)
10
*
47
.
*
34
*
105
*
12
*
10
*
2
16
*
65
.
+
=
π
nF
4
31
=
Choose C
SCOMP
=33nF.
Page 30 of 41
9
/30/04
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相关代理商/技术参数 |
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|---|---|
| IR3080MTRPBF | 功能描述:开关变换器、稳压器与控制器 XPHASE VRD10 CTRL IC CTRL IC 200 to 700mV 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 |
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| IR3081A | 制造商:IRF 制造商全称:International Rectifier 功能描述:XPHASETM VR 10 CONTROL IC |
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