参数资料
| 型号： | PI2211-EVAL1 |
| 厂商： | Vicor Corporation |
| 文件页数： | 1/26页 |
| 文件大小： | 0K |
| 描述： | BOARD EVAL FOR PI2211 |
| 标准包装： | 1 |
| 系列： | Picor®, Cool-Swap™ |
| 主要目的： | 电源管理，热交换控制器 |
| 嵌入式： | 否 |
| 已用 IC / 零件： | PI2211 |
| 主要属性： | 真正 SOA? MOSFET 监测和保护 |
| 次要属性： | Glitch-Catcher? 电压抑制 |
| 已供物品： | 板 |
| 其它名称： | 1102-1088 |
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PI2211
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Positive Low Voltage (0.9V to 14V) Hot Swap Controller and Circuit Breaker with True-SOA?
Description:
Features:
Wide operation temperature from -40 C to 125 C
The PI2211 hot swap controller and circuit breaker ensures
safe system operation during circuit card insertion by limiting
the start-up or in-rush current to the load and eliminating the
electrical disturbance or possible voltage sag imposed on a
backplane power supply. During steady state operation, the
PI2211 acts as a circuit breaker disconnecting from the
backplane power source if a overcurrent condition arises.
The PI2211 uses an external N-channel MOSFET and employs
the MOSFET ’s transient thermal characteristics (supplied by
the MOSFET supplier) to ensure operation within the
MOSFET ’s dynamic safe operating area (SOA).
The PI2211, with True- SOA?, continuously monitors MOSFET
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Operating range: +0.9 to +14V
Programmable inrush current limiting
Programmable MOSFET True- SOA? Protection
Programmable circuit breaker with Glitch- Catcher?
voltage suppression
100nS circuit breaker fault detection time
Adjustable Input Under-voltage Lockout (UVLO) with
hysteresis
Adjustable Input Over-voltage Lockout (OVLO) with
hysteresis
Power good status indicator
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power to calculate the MOSFET junction temperature rise and
determines proper operation regardless of load conditions.
The PI2211 limits the MOSFET junction temperature rise to a
maximum of 60°C preventing overheating (hot spotting) by
cycling the MOSFET on/off and allowing it to cool for a period
determined by the programmed MOSFET package thermal
properties. Emulation and protection based on the specific
MOSFET’s transient thermal performance optimizes the safe
operating limits and allows designers to take advantage of
Applications
? Base Station Power Distribution Systems
? Server Backplanes Systems
? Live Board Insertion / Removal
? Circuit Breaker with Voltage Clamp
Package
? 24-Pin QFN
the latest power MOSFET technologies.
During a circuit breaker fault, the PI2211 internal Glitch-
Catcher ? circuit acts as an active snubber, passing inductive
bus energy through the MOSFET mitigating the need for
additional BUS input transient protection and protects
against MOSFET avalanching.
Typical Application:
Figure 1 – Typical PI2211 application schematic.
Picor Corporation · picorpower.com
PI2211
Rev 1.0, Page 1 of 26
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