参数资料
型号: IR3505MPBF
厂商: International Rectifier
文件页数: 14/19页
文件大小: 0K
描述: IC XPHASE3 CONTROL 16-MLPQ
标准包装: 100
系列: XPhase3™
应用: 处理器
电流 - 电源: 3mA
电源电压: 8 V ~ 16 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: 剪切带 (CT)
IR3505
Figure 7 provides an application circuit that allows adjustment to the number of phases. By populating zero ohm
jumpers, or not; the number of phases can be adjusted by diverting the daisy chain timing from a 3505 to the next
one in sequence. The effect of more or less phases on converter performance can be tested without actually
removing a 3505 or it’s MOSFETs from the printed circuit board through use of a pull-up resistor from VCCL to
the CSIN+ pin to enable de-bug mode.
R13
Open
R23
Open
R33
Open
U0
U1
U2
U3
Three
Phase
IR3500
CONTROL
IC
1
2
3
4
ISHARE
DACIN
LGND
PHSIN
IR3505
PHASE
IC
SW
GATEH
BOOST
VCCL
12
11
10
9
1
2
3
4
ISHARE
DACIN
LGND
PHSIN
IR3505
PHASE
IC
SW
GATEH
BOOST
VCCL
12
11
10
9
1
2
3
4
ISHARE
DACIN
LGND
PHSIN
IR3505
PHASE
IC
SW
GATEH
BOOST
VCCL
12
11
10
9
R12
open
R13
Open
R11
0 ohm
R22
open
R23
Open
R21
0 ohm
R32
open
R33
0 ohm
R31
0 ohm
U0
U1
U2
U3
Two
Phase
IR3500
CONTROL
IC
1
2
3
4
ISHARE
DACIN
LGND
PHSIN
IR3505
PHASE
IC
SW
GATEH
BOOST
VCCL
12
11
10
9
1
2
3
4
ISHARE
DACIN
LGND
PHSIN
IR3505
PHASE
IC
SW
GATEH
BOOST
VCCL
12
11
10
9
1
2
3
4
ISHARE
DACIN
LGND
PHSIN
IR3505
PHASE
IC
SW
GATEH
BOOST
VCCL
12
11
10
9
R12
open
R11
0 ohm
R22
0 ohm
R21
0 ohm
R32
open
R31
open
Figure 7 – Optional Phase application circuit
Sept 26 , 2007
Page 14 of 19
th
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