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参数资料
| 型号： | PQ60525HTB04PYF |
| 厂商： | SYNQOR INC |
| 元件分类： | 电源模块 |
| 英文描述： | DC-DC REG PWR SUPPLY MODULE |
| 封装： | HALF-BRICK PACKAGE-11 |
| 文件页数： | 4/14页 |
| 文件大小： | 815K |
| 代理商： | PQ60525HTB04PYF |
Startup Inhibit Period: The Startup Inhibit Period ensures
that the converter will remain off for at least 200ms when it is
shut down for any reason. When an output short is present,
this generates a 5Hz "hiccup mode," which prevents the con-
verter 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 thresh-
old, the unit is disabled by the Input Under-Voltage Lockout fea-
ture. 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 can-
not 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.
FULL FEATURE APPLICATION NOTES
This section provides some basic application information for the
full-feature version of the
PowerQor series converter. The pin-out
configuration for these optional feature pins is shown on page
2, and the part numbering format is shown on the last page of
this specification sheet.
All units in this product family include back-drive protection to
simplify the use of multiple converters in a parallel or sequenc-
ing application. However, any voltage applied to the output of
the converter should be kept below 120% of the rated output
voltage of the converter.
In addition to back-drive protection, these units include the fol-
lowing features (pins):
Current Share (pin 3): The active current share feature
allows for N+1 and parallel applications. To achieve load shar-
ing, directly connect the I share pins of multiple units. The load
current will share equally among the multiple units (±5% at full
rated current). It is important that the Vin(-) pins of the sharing
units be directly connected and NOT placed outside of an EMI
filter or other impedance path. The voltage at the I Share pin
will range from 0 to 5 volts (at full rated current), referenced to
Product # PQ60120HTA14
Phone 1-888-567-9596
Doc.# 005-2HT612F Rev. D
9/9/04
Page 12
Half
Brick
Technical Specification
48Vin 12Vout 13.8A
Under-Voltage
Lockout Turn-On
Threshold
ON/OFF
(pos logic)
Figure F: Startup Inhibit Period (turn-on time not to scale)
Vout
Vin
200ms
(typical start-up
inhibit period)
t0
t1
t2
t
20ms (typical
turn on time)
ON
OFF
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