参数资料
| 型号： | PI2127-EVAL1 |
| 厂商： | Vicor Corporation |
| 文件页数： | 10/19页 |
| 文件大小： | 0K |
| 描述： | EVAL BRD FOR PI2127 60V/12A |
| 产品培训模块： | Cool-ORing? Series |
| 标准包装： | 1 |
| 系列： | Picor®, Cool-ORing® |
| 主要目的： | 电源管理，O 环控制器/负荷分载 |
| 嵌入式： | 否 |
| 已用 IC / 零件： | PI2127 |
| 已供物品： | 板 |
| 其它名称： | 1102-1060 |
?
Figure 19: Plot of PI2127 response time to reverse current detection
Application Information
The PI2127 is designed to replace high side ORing
diodes in high current, medium voltage redundant
power architectures. Replacing a traditional diode
with a PI2127 will result in significant power
dissipation reduction as well as board space
reduction, efficiency improvement and additional
protection features.
This section describes in detail the procedure to follow
CLM ). R PG should be connected between PG pin and
ground (V S return).
Minimize the resistor value for low S voltage levels to
avoid a voltage drop that may reduce V S-PG lower than
required.
Select the value of R PG using the following equations:
when designing with the PI2127 Active ORing
solution.
R PG =
V S ? min ? V S ? PGMax
I VC max + 0 . 1 mA
( V S ? max ? V S ? PGMin ) 2
V S ? min :
Control Circuitry Bias:
The PI2127 control circuitry and the gate driver for the
internal MOSFET are biased through the S pin. An
internal regulator clamps the S pin voltage (V S-PG ) to
11.7V typically.
A bias resistor (R PG ) is required if the voltage at the S
pin is higher than the minimum Voltage Clamp (V S-
R PG maximum power dissipation:
Pd RPG =
R PG
Where:
S pin minimum applied voltage
V S ? max : S pin maximum applied voltage
V S ? PGMax : Controller maximum clamp voltage, 12.5V
Picor Corporation ? picorpower.com
PI2127
Rev 1.3
Page 10 of 19
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