参数资料
| 型号： | IR3507MTRPBF |
| 厂商： | International Rectifier |
| 文件页数： | 7/19页 |
| 文件大小： | 0K |
| 描述： | IC XPHASE3 CONTROL 20-MLPQ |
| 标准包装： | 1 |
| 系列： | XPhase3™ |
| 应用： | 处理器 |
| 电流 - 电源： | 4mA |
| 电源电压： | 8 V ~ 28 V |
| 工作温度： | 0°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-MLPQ |
| 供应商设备封装： | 20-MLPQ（4x4） |
| 包装： | 标准包装 |
| 产品目录页面： | 1383 (CN2011-ZH PDF) |
| 其它名称： | IR3507MTRPBFDKR |
NOT RECOMMENDED FOR NEW DESIGNS
REPLACEMENT PRODUCT – IR3507ZPBF
IR3507PbF
SYSTEM THEORY OF OPERATION
System Description
The system consists of one control IC and a scalable array of phase converters, each requiring one phase IC. The
control IC communicates with the phase ICs using three digital buses, i.e., CLOCK, PHSIN, PHSOUT and three analog
buses, i.e., DAC, EA, IOUT. The digital buses are responsible for switching frequency determination and accurate
phase timing control without any external component. The analog buses are used for PWM control and current sharing
among interleaved phases. The control IC incorporates all the system functions, i.e., VID, CLOCK signals, error
amplifier, fault protections, current monitor, etc. The Phase IC implements the functions required by the converter of
each phase, i.e., the gate drivers, PWM comparator and latch, over-voltage protection, phase disable circuit, current
sensing and sharing, etc.
PWM Control Method
The PWM block diagram of the XPhase3 TM architecture is shown in Figure 1. Feed-forward voltage mode control with
trailing edge modulation is used. A high-gain wide-bandwidth voltage type error amplifier in the Control IC is used for the
voltage control loop. Input voltage is sensed by the phase ICs and feed-forward control is realized. The feed-forward
control compensates the ramp slope based on the change in input voltage. The input voltage can change due to
variations in the silver box output voltage or due to the wire and PCB-trace voltage drop related to changes in load
current.
CONTROL IC
GATE DRIVE
VOLTAGE
PHSOUT
VIN
PHASE IC
VCC
CLOCK GENERATOR
CLKOUT
CLKIN
CLK Q
D
VCCH
PHSOUT
PHSIN
PHSIN
PWM
1
2
RESET
DOMINANT
D Q
CLK Q
VID6
OFF
GATEH
SW
CBST
VOSNS+
VOUT
REMOTE SENSE
AMPLIFIER
EAIN
COMPARATOR
-
+
ENABLE
VID6
DFFRH
PWM LATCH
BODY
BRAKING
VID6
VCCL
GATEL
PGND
COUT
GND
VOSNS-
VO
RAMP
DISCHARGE
COMPARATOR
OFF
CLAMP
VDAC
LGND
SHARE ADJUST
ERROR AMPLIFIER
PSI
PSI
VDAC
ERROR
AMPLIFIER
EAOUT
RCOMP
RFB1
RFB
IOUT
3K
-
VID6
VID6
+
VID6
VID6 +
CURRENT
SENSE
AMPLIFIER
CSIN+
CCS RCS
+
CSIN-
FB
RVSETPT
CCOMP
CFB
RDRP1
DACIN
PHSOUT
IVSETPT
IROSC
VSETPT
IMON
CDRP
RDRP
CLKIN
CLK Q
PHASE IC
VCC
VDRP
AMP
VDAC
Thermal
Compensation
VDRP
VN
RTHRM
PHSIN
EAIN
D
1
PWM
COMPARATOR
-
+
2
RESET
U248
DOMINANT
D Q
CLK Q
DFFRH
PWM LATCH
VID6
OFF
VCCH
GATEH
SW
VCCL
CBST
IIN
ENABLE
VID6
BODY
GATEL
RAMP
DISCHARGE
CLAMP
SHARE ADJUST
BRAKING
COMPARATOR
VID6
OFF
PGND
PSI
PSI
ERROR AMPLIFIER
CURRENT
ISHARE
3K
-
VID6
VID6
+
SENSE
AMPLIFIER
CSIN+
VID6
VID6 +
+
DACIN
Figure 1: PWM Block Diagram
CSIN-
CCS RCS
Page 7 of 19
IR Confidential
April 2, 2009
相关PDF资料 |
PDF描述 |
|---|---|
| IR3507ZMTRPBF | IC CTRL XPHASE3 20-MLPQ |
| IR3508MTRPBF | IC XPHASE3 CTLR 20-MLPQ |
| IR3508ZMTRPBF | IC CTRL XPHASE3 20MLPQ |
| IR3510MPBF | IC XPHASE CONTROL 32-MLPQ |
| IR3513ZMTRPBF | IC CTRL XPHASE3 POL 32-MLPQ |
相关代理商/技术参数 |
参数描述 |
|---|---|
| IR3507PBF | 制造商:IRF 制造商全称:International Rectifier 功能描述:XPHASE3TM PHASE IC |
| IR3507Z | 制造商:IRF 制造商全称:International Rectifier 功能描述:XPHASE3TM PHASE IC |
| IR3507ZMPBF | 制造商:IRF 制造商全称:International Rectifier 功能描述:XPHASE3TM PHASE IC |
| IR3507ZMTRPBF | 功能描述:开关变换器、稳压器与控制器 XPHASE3 DDR VTT 7V 2A 3 Wire 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 |
| IR3508 | 制造商:IRF 制造商全称:International Rectifier 功能描述:XPHASE3TM PHASE IC |
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