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参数资料
| 型号： | IR3506MTRPBF |
| 厂商： | International Rectifier |
| 文件页数： | 7/21页 |
| 文件大小： | 0K |
| 描述： | IC CTRL XPHASE3 DDR 16-MLPQ |
| 标准包装： | 3,000 |
| 系列： | XPhase3™ |
| 应用： | 处理器 |
| 电流 - 电源： | 10mA |
| 电源电压： | 4.75 V ~ 7.5 V |
| 工作温度： | 0°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-MLPQ |
| 供应商设备封装： | 16-MLPQ（3x3） |
| 包装： | 带卷 (TR) |
IR3506
SYSTEM THEORY OF OPERATION
System Description
The system consists of one control IC (IR3522) 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, current sensing and sharing, etc.
PWM Control Method
The PWM block diagram of the XPhase
TM
architecture is shown in Figure 1. 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. The PWM ramp slope will change with the input voltage and automatically compensate for changes in the
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.
IR3522 CONTROL IC
GATE DRIVE
VOLTAGE
PHSOUT
IR3506 PHASE IC
VIN
CLOCK GENERATOR
CLKOUT
CLKIN
CLK Q
D
PWM
VCCH
PHSOUT
PHSIN
PHSIN
PWM
COMPARATOR
LATCH
S
RESET
DOMINANT
GATEH
SW
CBST
VOSNS1+
VOUT1
EAIN
VCCL
-
+
R
VCCL
COUT
GND
REMOTE SENSE
ENABLE
GATEL
AMPLIFIER
VOUT1
VID6
RAMP
DISCHARGE
PGND
VOSNS1-
CLAMP
VREF1
ERROR
LGND
SHARE ADJUST
ERROR AMPLIFIER
AMPLIFIER
VDAC
EAOUT1
RCP1
IOUT
3K
-
VID6
VID6
+
CURRENT
SENSE
AMPLIFIER
CSIN+
CCP12
RFB12
RFB11
VID6
VID6 +
CCS
RCS
CCP11
+
CSIN-
FB1
CFB1
DACIN
IFB1
IROSC
VDRP1 AMP
VDRP1
CDRP1
RDRP1
PHSOUT
IR3506 PHASE IC
CLKIN
CLK Q
VCCH
Output 1 Only
IIN1
D
PWM
PHSIN
PWM
COMPARATOR
LATCH
S
RESET
DOMINANT
GATEH
SW
CBST
EAIN
VCCL
-
+
R
VCCL
ENABLE
VID6
RAMP
DISCHARGE
CLAMP
SHARE ADJUST
ERROR AMPLIFIER
CURRENT
GATEL
PGND
IOUT
3K
-
VID6
VID6
+
SENSE
AMPLIFIER
CSIN+
Page 7 of 21
VID6
VID6 +
+
DACIN
Figure 1: PWM Block Diagram
CSIN-
CCS
RCS
V3.02
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相关代理商/技术参数 |
参数描述 |
|---|---|
| IR3507 | 制造商:IRF 制造商全称:International Rectifier 功能描述:XPHASE3TM PHASE IC |
| IR3507MPBF | 制造商:International Rectifier 功能描述: |
| IR3507MTRPBF | 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 |
| 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 |
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