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参数资料
| 型号： | ISL6562EVAL1 |
| 厂商： | Intersil |
| 文件页数： | 4/11页 |
| 文件大小： | 0K |
| 描述： | EVALUATION BOARD ISL6562 |
| 标准包装： | 1 |
| 主要目的： | 特殊用途 DC/DC，VRM 电源 |
| 输出及类型： | 1，非隔离 |
| 功率 - 输出： | 60W |
| 输出电压： | 1.5V |
| 电流 - 输出： | 40A |
| 输入电压： | 5V，12V |
| 稳压器拓扑结构： | 降压 |
| 频率 - 开关： | 400kHz |
| 板类型： | 完全填充 |
| 已供物品： | 板 |
| 已用 IC / 零件： | ISL6562 |
ISL6560/62 Evaluation Board
Figure 10 shows a simpli?ed diagram highlighting the critical
areas of a PC board layout. This diagram and the following
material represent goals to work towards during the layout
phase. Goals will be compromised during the layout process
due to component placement and space constraints. The
following text reviews these layout considerations in more
detail.
Current Sampling
1. Place the current sampling or sense resistor as close as
possible to the upper MOSFET drains. This is important
since the added inductance and resistance increase the
impedance and result in a reduction in drain voltage during
high peak pulse currents.
2. Current sense is critical, especially at lower current levels
where the current comparator threshold voltage is lower. A
good Kelvin connection requires that the voltage sample
must be taken at the R SENSE resistor ends and not at the
planes that the resistor is connected.
3. The lines to the current sense resistor should be parallel
and run away from the PHASE or PWM signals to prevent
coupling of spikes to the current comparator input that may
delay or advance triggering of the comparator. Parallel rout-
ing will work towards equal exposure for both lines, so that
the comparator common mode rejection characteristic will
reduce the in?uence of coupled noise.
4. Place the current sense ?lter network near the controller.
This will help reduce extraneous inputs to the comparator.
Voltage Sampling
1. To obtain optimum regulation use the Kelvin connection
for the output voltage sample as shown on the Functional
System Schematic Diagram of Figure 10. The ground con-
nection, pin 9 of the ISL6560 should be connected to the
system ground at the load.
2. The two voltage sampling lines described in item 1 above
should also be routed away from any high current or high
pulse voltages such as the phase lines or pads. Doing this
will reduce the possibility of coupling undesired pulses into
the feedback signal and either modifying the output of the
error ampli?er or, if of suf?cient amplitude, spuriously trigger-
ing the current comparator by readjusting the threshold volt-
age.
Other Considerations
1. Keep the leads to the timing capacitor connected to pin
CT short and return the ground directly to pin 9.
2. When using a transistor to disable the converter by pulling
the CT pin to ground, place the transistor close to the CT pin
to minimize extraneous signal pickup.
3. As in all designs, keep decoupling networks near the pins
that must be decoupled. For example, the decoupling/?lter
network on the FB input shown below. The series resistor
should be located next to the FB pin.
4. Large power and ground planes are critical to keeping
performance and ef?ciency high. Consider a 1m ? resistance
in a 40A supply line. With 1.8V output, this results in slightly
over 2% power loss in a 72W supply.
12V
+V IN
Keep Leads Together
& Away from Output
Place Near Drains of the
Output Transistors
{
INPUT
VID CODES
from
PROCSSOR {
1 VID4 VCC 16
2 VID3 REF 15
3 VID2 CS- 14
4 VID1 PWM1 13
5 VID0 PWM2 12
6 COMP CS+ 11
7 FB PWRGD 10
Locate
Parts
Next
to IC
1 UGATE PHASE 8
2 BOOT PVCC 7
3 PWM VCC 6
4 GND LGATE 5
HIP6601ECB
+V CORE
8 CT
GND 9
ISL6560
Locate
Try to return bypass
capacitors to ground
of lower MOSFETs
Parts
Next to IC
FIGURE 10. SCHEMATIC DIAGRAM SHOWING ONLY ONE CHANNEL OF “IDEAL” COMPONENT PLACEMENT
4
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ISL6563CR | 功能描述:IC CTRLR PWM MULTIPHASE 24-QFN RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - 专用型 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,000 系列:- 应用:电源，ICERA E400，E450 输入电压:4.1 V ~ 5.5 V 输出数:10 输出电压:可编程 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:42-WFBGA，WLCSP 供应商设备封装:42-WLP 包装:带卷 (TR) |
| ISL6563CR-T | 功能描述:IC CTRLR PWM MULTIPHASE 24-QFN RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - 专用型 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,000 系列:- 应用:电源，ICERA E400，E450 输入电压:4.1 V ~ 5.5 V 输出数:10 输出电压:可编程 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:42-WFBGA，WLCSP 供应商设备封装:42-WLP 包装:带卷 (TR) |
| ISL6563CR-TK | 制造商:Rochester Electronics LLC 功能描述: 制造商:Intersil Corporation 功能描述: |
| ISL6563CRZ | 功能描述:电流型 PWM 控制器 P6 TWO PHS CONT INTEGRTD DRVRS DESKT RoHS:否 制造商:Texas Instruments 开关频率:27 KHz 上升时间: 下降时间: 工作电源电压:6 V to 15 V 工作电源电流:1.5 mA 输出端数量:1 最大工作温度:+ 105 C 安装风格:SMD/SMT 封装 / 箱体:TSSOP-14 |
| ISL6563CRZ-T | 功能描述:电流型 PWM 控制器 P6 TWO PHS CONT INTEGRTD DRVRS DESKT RoHS:否 制造商:Texas Instruments 开关频率:27 KHz 上升时间: 下降时间: 工作电源电压:6 V to 15 V 工作电源电流:1.5 mA 输出端数量:1 最大工作温度:+ 105 C 安装风格:SMD/SMT 封装 / 箱体:TSSOP-14 |
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