参数资料
型号: IR3500
厂商: International Rectifier
英文描述: XPHASE3TM VR11.0 & AMD PVID CONTROL IC
中文描述: XPHASE3TM VR11.0
文件页数: 38/47页
文件大小: 778K
代理商: IR3500
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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相关代理商/技术参数
参数描述
IR3500A 制造商:IRF 制造商全称:International Rectifier 功能描述:XPHASE3TM VR11.0 & AMD PVID CONTROL IC
IR3500AMPBF 功能描述:IC CTRL XPHASE3 VR11.0 32-MLPQ RoHS:是 类别:集成电路 (IC) >> PMIC - 电源管理 - 专用 系列:XPhase3™ 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
IR3500AMTRPBF 功能描述:开关变换器、稳压器与控制器 IR3500 IC xPHASE3 AMD PVID CTRL IC 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
IR3500MPBF 功能描述:IC XPHASE3 CONTROL 32-MLPQ RoHS:是 类别:集成电路 (IC) >> PMIC - 电源管理 - 专用 系列:XPhase3™ 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
IR3500MTRPBF 功能描述:开关变换器、稳压器与控制器 COMPLETE VR11.0 OR AMD PVID PWR SOLTION 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