EQ2320-7R POWER ONE, EQ2320-7R Datasheet - Page 18

• Manufacturer Part Number: EQ2320-7R
• Description: DC/DC Power Supply Dual-OUT 12V 9.2A 120W 15-Pin
• Manufacturer: POWER ONE
• Type: Step Downr

Specifications of EQ2320-7R

• Output Current: 9.2 A
• Output Voltage: 12 V
• Input Voltage: 65 to 150 V
• Number Of Outputs: 2
• Output Power: 120 W

Sense Lines
This feature allows for compensation of voltage drops at the
main output across connector contacts and load lines. If the
sense lines are connected at the load rather than directly at the
connector, the user must ensure that the differential voltages
(measured on the connector) ΔV
ΔV
table below.
Applying generously dimensioned cross-section load leads
help avoiding troublesome voltage drops. To minimize noise
BCD20011-G Rev AD, 22-Dec-09
Output Good Signal (Out-OK)
The isolated Out-OK output gives a status indication of the
converter and the output voltage. It can be used for control
functions such as data protection, central system monitoring or
as a part of a self-testing system. It can be connected to get a
centralized fault detection or may be used for other system-
specific applications at the primary or the secondary side of
the converter.
Connecting the Out-OK as per fig. 22, V
the V
V
V
In an error condition, if the output voltage is out of range due to
overload or an external overvoltage, V
The output is formed by an NPN transistor. The emitter (Out
OK–) can be connected to primary Vi– or secondary Vo1– to
get an open-collector output. In a configuration of several Q
Series converters, the Out OK pins can be series-connected in
order to get a system level signal (as shown in fig. 9). If one of
the converters fails, the series-connected output rises to high
impedance.
Fig. 22
Out OK function
Dimensioning of resistor value R
Table 10: Out-OK data
Characteristics
V
I
o1 nom
t1 low
OK
Note: Using the R-input or the option P, the monitor level is
tracking the programmed output voltage.
Caution: Out-OK is protected by an internal series
resistor and a Zener diode. To prevent damage, the
applied current I
OK
S –
o
(between Vo– and S–) do not exceed the values in the
Out-OK voltage Output okay, I
Out-OK current Output fail, V
corresponds to 0.95 - 0.98 V
or V
.
Output
control
circuit
o1
of the converter is within the range V
OK
Conditions
should be limited to ±10 mA.
®
06096a
1 k
20 V
22
24
OK
S+
p
OK
≥ ––––––
≤ 15 V
o1 nom
< 0.5 mA
(between Vo+ and S+) and
I
OK
0.5 mA
OK
V
OK
, V
p
will approach V
V
<1.0 V indicates that
OK
t1 high
min typ max Unit
+
V
R
p
p
to 1.02 – 1.05
0.8 1.0
t1 low
Out OK+
Out OK–
– V
25
p.
t1 high
Page 18 of 26
μA
V
.
pick-up, wire the sense lines parallel or twisted. For
unsymmetrical loads, we recommend connecting the sense
lines directly at the female connector.
To ensure correct operation, both sense lines must be
connected to their respective power output. With double-
output models, the sense lines must be connected to output 1
only. Caution should be exercised, if outputs are series-
connected, as the compensated voltage is effectively doubled.
Because the effective output voltage and output power are
increased by the sense lines, the minimum input voltage rises
proportionally to the compensated output voltage.
Test Jacks
Test jacks (for pin diameter 2 mm) are located at the front of the
converter monitoring the main output voltage at the sense line
terminals. The test sockets are short-circuit protected by
internal series resistors. Double-output models show the
sense line voltage of output 1 at the test sockets. 48Q models
have no test jacks.
LEDs
48Q models exhibit a green LED In-OK to monitor the input
voltage. BQ – GQ models have an additional LED Out-OK,
which is activated simultaneously to the Out-OK signal.
Table 11: Display status of LEDs
Table 12: Voltage compensation by sense lines
Nominal output
LED In OK
Caution: Sense lines should always be connected. Incorrectly
connected sense lines may cause an overvoltage at the ouput,
which could damage the output load and activate the second
control loop. The sense lines can handle only small currents.
Note: Sense line connection in a redundant configuration is shown
in fig. 10.
x = dependent on actual operating condition
3.3 V, 5.1 V
green
green
green
12 V, 15 V
voltage
off
off
24 V
66 – 132 Watt DC-DC Converter
LED Out OK
green
green
off
off
Δ Δ Δ Δ Δ V
≤ 0.5
≤ 1.0
≤ 1.0
x
S+
Q Series Data Sheet
Operating condition
normal operation
incorrect sense line connection
overtemperature
overload
output overvoltage
output undervoltage
not possible
no input voltage
input voltage too low
input voltage too high
inhibit input open/high
≤ 0.25
Δ Δ Δ Δ Δ V
≤ 0.5
≤ 1.0
S –
Δ Δ Δ Δ Δ V
www.power-one.com
Sum of
S+
≤ 0.5
≤ 1.0
≤ 2.0
+ Δ Δ Δ Δ Δ V
S–
Unit
V