- 您现在的位置：买卖IC网 > PDF目录17253 > IRPP3624-12A (International Rectifier)KIT REF DES 12A 1PH SYNC BUCK PDF资料下载
参数资料
| 型号： | IRPP3624-12A |
| 厂商： | International Rectifier |
| 文件页数： | 16/21页 |
| 文件大小： | 0K |
| 描述： | KIT REF DES 12A 1PH SYNC BUCK |
| 产品变化通告： | (EP) Parts Discontinuation 25/May/2012 |
| 标准包装： | 1 |
| 系列： | POWIR+™ |
| 主要目的： | DC/DC，步降 |
| 输出及类型： | 1，非隔离 |
| 输出电压： | 1.8V |
| 电流 - 输出： | 12A |
| 输入电压： | 10.8 ~ 13.2 V |
| 稳压器拓扑结构： | 降压 |
| 频率 - 开关： | 600kHz |
| 板类型： | 完全填充 |
| 已供物品： | 板 |
| 已用 IC / 零件： | IR3624，IRF7823，IRF7832Z |
| 相关产品： | IR3624MPBF-ND - IC REG CTRLR BUCK PWM VM 10-MLPD IR3624MTRPBFCT-ND - IC REG CTRLR BUCK PWM VM 10-MLPD IR3624MTRPBFTR-ND - IC REG CTRLR BUCK PWM VM 10-MLPD IRF7832ZTR-ND - MOSFET N-CH 30V 21A 8-SOIC IRF7832Z-ND - MOSFET N-CH 30V 21A 8-SOIC |
IR3624MPBF
Based on the frequency of the zero generated by
output capacitor and its ESR versus crossover
frequency, the compensation type can be
different. The table below shows the
compensation types and location of crossover
frequency.
The following design rules will give a crossover
frequency approximately one-tenth of the
switching frequency. The higher the band width,
the potentially faster the load transient response.
The DC gain will be large enough to provide high
DC-regulation accuracy (typically -5dB to -12dB).
The phase margin should be greater than 45 o for
Compensator
type
TypII(PI)
TypeIII(PID)
Method A
TypeIII(PID)
Method B
F ESR vs. F o
F LC <F ESR <F o <F s/2
F LC <F o <F ESR <F s/2
F LC <F o <F s/2 <F ESR
Output
capacitor
Electrolytic
, Tantalum
Tantalum,
ceramic
Ceramic
overall stability.
Desired Phase Margin:
1 ? Sin Θ
F Z 2 = F o *
1 + Sin Θ
F Z 2 = 16 kHz
Θ max =
π
3
Table1- The compensation type and location
F P 2 = F o *
1 + Sin Θ
1 ? Sin Θ
of F ESR versus F o
The details of these compensation types are
discussed in application note AN-1043 which can
be downloaded from IR Web-Site.
F P 2 = 224 kHz
Select : F Z1 = 0 . 5 * F Z 2 and F P3 = 0.5 * F s
For this design we have:
R 3 ≥
2
g m
; R 3 ≥ 2K ? ; Select : R 3 = 5K ?
V in =13.2V
V o =1.8V
V osc =1.25V
Calculate C 4 , C 3 and C 7 :
V ref =0.6V
g m =1000umoh
L o =0.82uH
C 4 =
1
2 π * F Z1 * R 3
; C 4 = 3.96nF, Select : C 4 = 3.9nF
C o =2x22uF, ESR=1.5mOhm
F s =600kHz
These result to:
C 3 =
1
2 π * F P 3 * R 3
; C 3 = 106 pF , Select : C 3 = 100 pF
F LC =26.5kHz
F ESR =2.4MHz
C 7 =
2 π * F o * L o * C o * V osc
R 3 * V in
; C 10 = 0 . 26 nF ,
F s/2 =300kHz
Select crossover frequency:
F o < F ESR and F o ≤ ( 1/5 ~ 1/10 ) * F s
Select : C 7 = 0 . 33 nF
Calculate R 10 , R 8 and R 9 :
Fo=60kHz
Since: F LC <F o <F s/2 <F ESR , typeIII method B is
R 10 =
1
2 π * C 7 * F P 2
; R 10 = 2 . 1 K ? , Select : R 10 = 2 K ?
selected to place the poles and zeros.
R 8 =
1
2 π * C 7 * F Z 2
? R 10 ; R 8 = 28 K ? , Select : R 8 = 28 K ?
R 9 =
V ref
V o ? V ref
* R 8 ; R 9 = 14 K ? , Select : R 9 = 14 K ?
16
相关PDF资料 |
PDF描述 |
|---|---|
| IRS2453DSTRPBF | IC DRIVER FULL SELF OSC 14-SOIC |
| EVPS001 | BOARD EVALUATION DESIGN KIT |
| HK160839NJ-T | INDUCTOR HI FREQ 39NH 5% 0603 |
| D3G-T | DIODE GPP 1A 200V T1 |
| D2G-T | DIODE GPP 1A 100V T1 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| IRPP3637-06A | 功能描述:电源管理IC开发工具 6 AMP 1 PHASE SYNC 5V IN 1.25 OUTPUT RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
| IRPP3637-12A | 功能描述:电源管理IC开发工具 12A Single-Ph REF IR3637 PWM IRF7823 RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
| IRPP3637-18A | 制造商:International Rectifier 功能描述:Full Bridge DC Bus Converter Using IR2086S Controller, IR6621, IR6635, IR6646 And IRF7380 FETs 制造商:International Rectifier 功能描述:18 AMP SINGLE PHASE SYNCHR BUCK POWIR+ CHIPSET REF DESIGN - Bulk 制造商:International Rectifier 功能描述:DESIGNER KIT REFERENCE 18A |
| IR-PROBE | 制造商:3M Electronic Products Division 功能描述: |
| IRPS | 制造商:RADIOMETRIX 制造商全称:RADIOMETRIX 功能描述:Infra Red reflective proximity sensor |
发布紧急采购，3分钟左右您将得到回复。