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參數(shù)資料
| 型號： | IR3500MTRPBF |
| 廠商： | International Rectifier |
| 英文描述： | XPHASE3TM VR11.0 & AMD PVID CONTROL IC |
| 中文描述： | XPHASE3TM VR11.0 |
| 文件頁數(shù)： | 38/47頁 |
| 文件大小： | 778K |
| 代理商： | IR3500MTRPBF |
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IR3500
Page 38 of 47
June 12, 2007
=
=
=
k
R
n
G
R
R
R
O
CS
MAX
L
FB
DRP
8
41
10
*
7
*
3
34
*
10
*
29
.
*
2000
*
3
3
_
, choose R
DRP
=42.2k
=
+
=
+
=
k
R
C
f
V
R
C
L
f
R
C
C
I
FB
E
E
C
CP
5
21
)
10
*
7
*
10
*
560
*
10
*
25
*
2
1
*
12
5
2000
)
12
10
560
(
)
10
470
(
)
10
25
2
)
*
*
*
2
1
*
5
)
2
2
3
6
3
6
9
2
3
2
2
π
π
π
π
,
nF
R
C
L
C
CP
E
E
CP
15
10
5
21
)
12
*
10
560
(
)
/
10
470
(
10
10
3
6
9
=
=
=
Choose CCP1=47pF to reduce high frequency noise.
DESIGN EXAMPLE 2 – VR11 HIGH FREQUENCY ALL-CERAMIC CONVERTER (FIG. 21)
SPECIFICATIONS
Input Voltage: V
I
=12 V
DAC Voltage: V
DAC
=1.3 V
No Load Output Voltage Offset: V
O_NLOFST
=20 mV
Output Current: I
O
=105 ADC
Maximum Output Current: I
OMAX
=120 ADC
Output Impedance: R
O
=0.91 m
Soft Start Delay Time: TD1=1-5mS
Soft Start Time: TD2=0-3mS
VID Sample Delay Time: TD3=0.05-3mS
VID Rise Time: TD4=0-2.5mS
VR Ready Delay Time: TD5=0-3mS
Maximum Over Current Delay Time: t
OCDEL
<2.5mS
Dynamic VID Down-Slope Slew Rate: SR
DOWN
=2.5mV/uS
Over Temperature Threshold: T
MAX
=115 oC
POWER STAGE
Phase Number: n=6
Switching Frequency: f
SW
= 800 kHz
Output Inductors: L=100 nH, R
L
=0.5 m
Output Capacitors: Ceramic, C=22uF, R
C
= 2m
, Number Cn=62
IR3500 EXTERNAL COMPONENTS
Oscillator Resistor
Rosc
Once the switching frequency is chosen, R
OSC
can be determined from the curve in Figure 23 data sheet. For a
switching frequency of 800kHz per phase, choose R
OSC
= 15.0 k
. The reference current is given by 40uA.
Soft Start Capacitor
C
SS/DEL
Determine the soft start capacitor to meet the specifications of the delay time.
Choose C
SS/DEL
=0.1uF. The soft start delay time is
C
TD
67
.
10
*
5
52
mS
I
CHG
DEL
SS
4
*
10
*
1
4
*
1
6
6
/
=
=
=
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PDF描述 |
|---|---|
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| IR3500V | 制造商:IRF 制造商全稱:International Rectifier 功能描述:XPHASE3TM VR11.1 CPU VTT CONTROL IC |
| IR3500VMPBF | 制造商:IRF 制造商全稱:International Rectifier 功能描述:XPHASE3TM VR11.1 CPU VTT CONTROL IC |
| IR3500VMTRPBF | 功能描述:開關變換器、穩(wěn)壓器與控制器 X-PHASE IR3500V AMD SVID CTRL IC 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 |
| IR3502 | 制造商:IRF 制造商全稱:International Rectifier 功能描述:XPHASE3TM CONTROL IC |
| IR3502_09 | 制造商:IRF 制造商全稱:International Rectifier 功能描述:XPHASE3TM CONTROL IC |
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