- 您现在的位置：买卖IC网 > Sheet目录892 > ZY7115LG-T2 (Power-One)PROGBL CONV DC-DC 15A OUT SMD
ZY7115 15A DC-DC Intelligent POL Data Sheet
3V to 13.2V Input ? 0.5V to 5.5V Output
Figure 51 shows the input voltage noise of the three-
output system with programmed interleave. Instead
of all three POLs switching at the same time as in
the previous example, the POLs V1, V2, and V3
switch at 67.5°, 180°, and 303.75°, respectively.
Noise is spread evenly across the switching cycle
resulting in more than 1.5 times reduction. To
achieve similar noise reduction without the interleave
will require the addition of an external LC filter.
Figure 53. Output Voltage Noise, Full Load, 180 ? Interleave
The ZY7115 interleave feature is similar to that of
multiphase converters, however, unlike in the case of
multiphase converters, interleave does not have to
be equal to 360/N, where N is the number of POLs in
a system. ZY7115 interleave is independent of the
number of POLs in a system and is fully
programmable in 11.25 ? steps. It allows maximum
output noise reduction by intelligently spreading
Figure 51. Input Voltage Noise with Interleave
Similar noise reduction can be achieved on the
output of POLs connected in parallel. Figure 52 and
Figure 53 show the output noise of two ZY7115s
connected in parallel without and with 180°
interleave, respectively. Resulting noise reduction is
more than 2 times and is equivalent to doubling
switching frequency or adding extra capacitance on
the output of the POLs.
switching energy.
Note : Due to noise sensitivity issues that may occur in limited
cases, it is recommended to avoid phase lag settings of
112.5 and 123.75 degrees, otherwise false PG and/or OV
indications may occur.
8.4.3 Duty Cycle Limit
The ZY7115 is a step-down converter therefore V OUT
is always less than V IN . The relationship between
the two parameters is characterized by the duty
cycle and can be estimated from the following
equation:
DC ?
V OUT
V IN . MIN
,
Where, DC is the duty cycle, V OUT is the required
maximum output voltage (including margining),
V IN.MIN is the minimum input voltage.
It is good practice to limit the maximum duty cycle of
the PWM controller to a somewhat higher value
compared to the steady-state duty cycle as
expressed by the above equation. This will further
protect the output from excessive voltages. The duty
cycle limit can be programmed in the GUI PWM
Figure 52. Output Voltage Noise, Full Load, No Interleave
MDS-0006 Rev. 3.6, 02-Jul-10
www.power-one.com
Page 27 of 34
发布紧急采购，3分钟左右您将得到回复。
相关PDF资料
ZY8105G-R1
PROGBL CONVERT DC-DC 5A OUT THRU
ZY8110G
PROGBL CONVERT DC-DC 10A OUT THR
ZY8140G
PROGBL CONVERT DC-DC 40A OUT THU
ZY8160G
PROGBL CONVERT DC-DC 60A OUT THU
0006660012
CABLE 28AWG 148MM RED
0006660013
CABLE 28AWG 300MM RED
002679-000
CABLE 22AWG TWISTED
0082226102
RIB CBL .100 100RL TIN 2POS
相关代理商/技术参数
ZY7115LG-T3
功能描述:DC/DC转换器 50 pcs RoHS:否 制造商:Murata 产品: 输出功率: 输入电压范围:3.6 V to 5.5 V 输入电压（标称）: 输出端数量:1 输出电压（通道 1）:3.3 V 输出电流（通道 1）:600 mA 输出电压（通道 2）: 输出电流（通道 2）: 安装风格:SMD/SMT 封装 / 箱体尺寸:
ZY7115L-T1
制造商:Power-One 功能描述:ZY7115 Series Single Output 0.5 V to 5.5 V Point of Load Power DC/DC Module
ZY7115L-T2
制造商:Power-One 功能描述:ZY7115 Series Single Output 0.5 V to 5.5 V Point of Load Power DC/DC Module
ZY7115L-T3
制造商:Power-One 功能描述:
ZY7120
制造商:POWER-ONE 制造商全称:Power-One 功能描述:20A DC-DC Intelligent POL Data Sheet 3V to 13.2V Input 0.5V to 5.5V Output
ZY71207G -Q1
制造商:Power-One 功能描述:
ZY7120H(G)-ln
功能描述:DC/DC转换器 "ln" - packout option RoHS:否 制造商:Murata 产品: 输出功率: 输入电压范围:3.6 V to 5.5 V 输入电压（标称）: 输出端数量:1 输出电压（通道 1）:3.3 V 输出电流（通道 1）:600 mA 输出电压（通道 2）: 输出电流（通道 2）: 安装风格:SMD/SMT 封装 / 箱体尺寸:
ZY7120HG-Q1
制造商:POWER-ONE 制造商全称:Power-One 功能描述:20A DC-DC Intelligent POL Data Sheet 3V to 13.2V Input 0.5V to 5.5V Output