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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： | 29/41页 |
| 文件大小： | 2267K |
| 代理商： | IR3080MTR |
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页第24页第25页第26页第27页第28页当前第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页
IR3080
=
6
=
=
k
R
n
G
R
R
R
O
MIN
CS
MAX
L
FB
DRP
21
.
10
*
91
.
2
30
10
*
61
.
365
3
3
_
_
Control IC Over Temperature Setting Resistors
R
HOTSETC1
and
R
HOTSETC2
Set the temperature threshold at 115 oC, which corresponds to the IC die temperature of 116 oC. Calculate the
HOTSET threshold voltage corresponding to the temperature thresholds.
T
V
J
HOTSET
.
241
.
116
10
*
73
.
241
.
*
10
*
73
.
=
+
=
+
=
=
V
V
HOTSET
BIAS
79
.
8
Body Braking Related Resistors
R
BBFB
and
R
BBDRP
N/A. The body braking during Dynamic VID is disabled.
IR3086 EXTERNAL COMPONENTS
PWM Ramp Resistor
R
PWMRMP
and Capacitor
C
PWMRMP
Set PWM ramp magnitude V
PWMRMP
=0.8V. Choose 220pF for PWM ramp capacitor C
PWMRMP
, and calculate the
resistor R
PWMRMP
,
V
R
33
.
12
3
V
79
3
3
, Choose R
HOTSETC1
=20.0k
,
=
=
k
V
R
R
HOTSET
HOTSETC
HOTSETC
15
.
79
.
10
*
20
3
1
2
)]
ln(
)
[ln(
PWMRMP
V
DAC
V
IN
DAC
V
IN
PWMRMP
SW
IN
O
PWMRMP
V
V
C
f
V
=
=
=
k
1
16
)]
8
35
.
12
ln(
)
35
.
12
[ln(
10
*
220
10
*
400
12
, Choose R
PWMRMP
=16.2k
Inductor Current Sensing Capacitor C
CS+
and Resistors
R
CS+
and
R
CS-
Choose C
CS+
=47nF 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-
,
25
.
4
Over Temperature Setting Resistors
R
HOTSET1
and
R
HOTSET2
Use central over temperature setting and set the temperature threshold at 115 oC, which corresponds the IC die
temperature of 116 oC. Calculate the HOTSET threshold voltage corresponding to the temperature thresholds.
T
V
J
HOTSET
.
241
.
116
10
*
73
.
241
.
*
10
*
73
.
=
+
=
+
=
Pre-slect R
HOTSET1
=10.0k
,
=
V
V
HOTSET
BIAS
79
.
8
Phase Delay Timing Resistors
R
PHASE1
and
R
PHASE2
Use central over temperature setting and set the temperature threshold at 115 oC, which corresponds the IC die
temperature of 116 oC. Calculate the HOTSET threshold voltage corresponding to the temperature thresholds.
Page 29 of 41
=
=
=
+
+
k
C
L
CS
0
10
)
10
*
47
9
.
/(
10
*
220
3
9
=
=
=
+
k
R
R
CS
CS
2
10
*
0
10
4
25
.
3
, Choose R
CS-
=6.19k
V
79
3
3
=
=
k
V
R
R
HOTSET
HOTSET
HOTSET
57
.
79
.
10
*
10
3
1
2
9
/30/04
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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 |
| IR3080PBF | 制造商:IRF 制造商全称:International Rectifier 功能描述:XPHASETM VRD10 CONTROL IC WITH VCCVID & OVERTEMP DETECT |
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