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參數(shù)資料
| 型號(hào)： | PQ50050HPB50NNS-G |
| 廠商： | SYNQOR INC |
| 元件分類： | 電源模塊 |
| 英文描述： | 1-OUTPUT 250 W DC-DC REG PWR SUPPLY MODULE |
| 封裝： | ROHS COMPLIANT, HALF BRICK PACKAGE-8 |
| 文件頁(yè)數(shù)： | 5/14頁(yè) |
| 文件大?。?/td> | 1549K |
| 代理商： | PQ50050HPB50NNS-G |
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Product # PQ50050HPB50
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-0005487 Rev. A
03/18/10
Page 13
Input:
Output:
Current:
Part No.:
Startup Inhibit Period: The Startup Inhibit Period ensures that
the converter will remain off for approximately 200ms when it is
shut down for any reason. When an output short is present, this
generates a 5Hz “hiccup mode,” which prevents the converter from
overheating. In all, there are seven ways that the converter can be
shut down, initiating a Startup Inhibit Period:
Input Under-Voltage Lockout
Input Over-Voltage Shutdown (not present in Quarter-brick)
Output Over-Voltage Protection
Over Temperature Shutdown
Current Limit
Short Circuit Protection
Turned off by the ON/OFF input
Figure F shows three turn-on scenarios, where a Startup Inhibit
Period is initiated at t0, t1, and t2:
Before time t0, when the input voltage is below the UVL threshold,
the unit is disabled by the Input Under-Voltage Lockout feature.
When the input voltage rises above the UVL threshold, the Input
Under-Voltage Lockout is released, and a Startup Inhibit Period is
initiated. At the end of this delay, the ON/OFF pin is evaluated,
and since it is active, the unit turns on.
At time t1, the unit is disabled by the ON/OFF pin, and it cannot be
enabled again until the Startup Inhibit Period has elapsed.
When the ON/OFF pin goes high after t2, the Startup Inhibit
Period has elapsed, and the output turns on within the typical Turn-
On Time.
Figure F: Startup Inhibit Period (turn-on time not
to scale)
200ms
Under-Voltage
Lockout Turn-On
Threshold
ON/OFF
(Positive
logic)
Vout
Vin
200ms
t0
t1
t2
t
ON
OFF
25 ms
(typical turn on time)
200ms
(typical turn
start-up inhibit
period time)
ON
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PQ50-1618(1007) | 制造商:Hirose 功能描述: 制造商:Hirose 功能描述:PQ50-1618(1007) |
| PQ50-1618(1007)(61) | 制造商:Hirose 功能描述:250-1002-4-61 EACH 制造商:Hirose 功能描述:PQ50-1618(1007)(61) |
| PQ50-1618(1007)(62) | 制造商:Hirose 功能描述:250-1002-4-62 EACH 制造商:Hirose 功能描述:PQ50-1618(1007)(62) |
| PQ50-1618(1007)(63) | 制造商:Hirose 功能描述:250-1002-4-63 EACH 制造商:Hirose 功能描述:PQ50-1618(1007)(63) |
| PQ50-1618(1007)(64) | 制造商:Hirose 功能描述:250-1002-4-64 EACH 制造商:Hirose 功能描述:PQ50-1618(1007)(64) |
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