参数资料
型号: IR3503MTRPBF
厂商: International Rectifier
文件页数: 11/39页
文件大小: 0K
描述: IC CTRL XPHASE VR11.0/1 32-MLPQ
标准包装: 1
系列: XPhase3™
应用: 处理器
电流 - 电源: 8mA
电源电压: 4.75 V ~ 7.5 V
工作温度: 0°C ~ 100°C
安装类型: 表面贴装
封装/外壳: 32-VFQFN 裸露焊盘
供应商设备封装: 32-MLPQ(5x5)
包装: 标准包装
其它名称: IR3503MTRPBFDKR
IR3503
During power up, the control IC sends out clock signals from both CLKOUT and PHSOUT pins and detects the
feedback at PHSIN pin to determine the phase number and monitor any fault in the daisy chain loop. Figure 5 shows
the phase timing for a four phase converter. The switching frequency is set by the resistor ROSC. The clock frequency
equals the number of phase times the switching frequency.
Control IC CLKOUT
(Phase IC CLKIN)
Control IC PHSOUT
(Phase IC1 PHSIN)
Phase IC1
PWM Latch SET
Phase IC 1 PHSOUT
(Phase IC2 PHSIN)
Phase IC 2 PHSOUT
(Phase IC3 PHSIN)
Phase IC 3 PHSOUT
(Phase IC4 PHSIN)
Phase IC4 PHSOUT
(Control IC PHSIN)
Figure 5: Four Phase Oscillator Waveforms
PHSOUT FREQUENCY vs. RROSC
1600
1500
1400
1300
1200
1100
1000
900
800
700
600
500
400
300
200
5
10
15
20
25
30
35
40
45
50
55
RROSC (KOhm)
Figure 6: PHSOUT Frequency vs RROSC chart
Page 11 of 39
February 12, 2010
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相关代理商/技术参数
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