參數資料
型號: CK2540-9ERD3TB1
英文描述: 150 Watt DC-DC and AC-DC Converters
中文描述: 150瓦的DC - DC和AC - DC轉換器
文件頁數: 27/34頁
文件大小: 605K
代理商: CK2540-9ERD3TB1
K Series Data Sheet
150 Watt DC-DC and AC-DC Converters
APR 26, 2006 revised to MAY 15, 2006
Page 27 of 34
www.power-one.com
Option D: Undervoltage Monitor
The input and/or output undervoltage monitoring circuit operates
independently of the built-in input undervoltage lockout circuit. A
logic "low" (JFET output) or "high" signal (NPN output) is
generated at pin 20 as soon as one of the monitored voltages
drops below the preselected threshold level
V
t. The return for
this signal is Vo1–. The D output recovers when the monitored
voltage(s) exceed(s)
V
t +
V
h. The threshold levels
V
tiand
V
to
are either adjustable by a potentiometer, accessible through a hole
in the front cover, or factory adjusted to a fixed value specified by
the customer.
Option D exists in various versions D0 - DD as shown in the
following table.
Table 19: Undervoltage monitor functions
Output type
Monitoring
Minimum adjustment range
of threshold level Vt
Vti
Typical hysteresis Vh[% of Vt]
for Vt min- Vt max
Vhi
-
JFET NPN V Vo1
D1
D5
Vto
Vho
2.5 - 0.6
no
yes
-
3.5 - 40 V
1
D2
D6
yes
no
V min- V max
V min- V max
-
1
-
3.4 - 0.4
-
D3
D7
yes
yes
1
(0.95 - 0.985 Vo1)
2
(0.95 - 0.985 Vo1)
2
3.5 - 40 V3
3.4 - 0.4
"0"
D4
D8
no
yes
-
"0"
D0
D9
no
yes
-
-
2.5 - 0.6
yes
no
V min- V max
V min- V max
V min- V max
V min- V max
3, 4
-
3.5 - 40 V3
3.4 - 0.4
-
yes
yes
3, 4
3.4 - 0.4
2.5 - 0.6
yes
yes
3, 4
(0.95 - 0.985 Vo1)
2
3.5 - 40 V
1
3.4 - 0.4
"0"
-
DD
yes
yes
1
3.4 - 0.4
2.5 - 0.6
1
Threshold level adjustable by potentiometer
2
Fixed value tracking if Vo1is adjusted via R-input, option P or sense lines.
3
The threshold level is permanently adjusted according to customer specification ±2% at 25 °C. Any value within the
specified range is possible, but causes a new customer-specific type designation.
4
Adjusted at Io nom
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