UQQ-15/5.6-Q12NB-C Murata Power Solutions Inc, UQQ-15/5.6-Q12NB-C Datasheet - Page 15

• Manufacturer Part Number: UQQ-15/5.6-Q12NB-C
• Description: DC/DC Converters & Regulators valid
• Manufacturer: Murata Power Solutions Inc

Specifications of UQQ-15/5.6-Q12NB-C

• Product: Isolated
• Output Power: 84 W
• Input Voltage Range: 9 V to 36 V
• Input Voltage (nominal): 12 V
• Number Of Outputs: 1
• Output Voltage (channel 1): 15 V
• Output Current (channel 1): 5.6 A
• Isolation Voltage: 2 KV
• Package / Case Size: Quarter Brick
• Output Type: Isolated Single
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Input Reverse-Polarity Protection
If the input-voltage polarity is accidentally reversed, an internal diode will
become forward biased and likely draw excessive current from the power
source. If the source is not current limited or the circuit appropriately fused, it
could cause permanent damage to the converter.
Input Fusing
Certain applications and/or safety agencies may require the installation of
fuses at the inputs of power conversion components. Fuses should also be
used if the possibility of a sustained, non-current-limited, input-voltage polarity
reversal exists. For MPS UQQ Series DC/DC Converters, fast-blow fuses are
recommended with values no greater than twice the maximum input current.
Trimming Output Voltage
UQQ converters have a trim capability (pin 6) that enables users to adjust the
output voltage from +10% to –20% (refer to the trim equations). Adjustments
to the output voltage can be accomplished with a single fi xed resistor as shown
in Figures 5 and 6. A single fi xed resistor can increase or decrease the output
voltage depending on its connection. Resistors should be located close to
the converter and have TCR’s less than 100ppm/°C to minimize sensitivity to
changes in temperature. If the trim function is not used, leave the trim pin open.
Standard UQQ’s have a "positive trim" where a single resistor connected from
the Trim pin (pin 6) to the +Sense (pin 7) will increase the output voltage. A
resistor connected from the Trim Pin (pin 6) to the –Sense (pin 5) will decrease
the output voltage.
Trim adjustments greater than the specifi ed +10%/–20% can have an adverse
affect on the converter’s performance and are not recommended. Excessive
voltage differences between V
ment of the output voltage, can cause the overvoltage protection circuitry to
activate (see Performance Specifi cations for overvoltage limits).
Temperature/power derating is based on maximum output current and voltage
at the converter’s output pins. Use of the trim and sense functions can cause
output voltages to increase, thereby increasing output power beyond the UQQ’s
specifi ed rating, or cause output voltages to climb into the output overvoltage
region. Therefore:
The Trim pin (pin 6) is a relatively high impedance node that can be susceptible
to noise pickup when connected to long conductors in noisy environments.
(V
OUT
at pins) x (I
OUT
) d rated output power
OUT
and Sense, in conjunction with trim adjust-
www.murata-ps.com
Figure 5. Trim Connections To Increase Output Voltages Using Fixed Resistors
Figure 6. Trim Connections To Decrease Output Voltages Using Fixed Resistors
Wide Input Range Single Output DC/DC Converters
R
R
R
R
R
T
T
T
T
T
UP
UP
UP
UP
UP
(k ) =
(k ) =
(k ) =
(k ) =
(k ) =
1
2
3
1
2
3
–INPUT
ON/OFF
CONTROL
+INPUT
–INPUT
ON/OFF
CONTROL
+INPUT
Trim Up
101 × (V
13.3(V
20.4(V
62.9(V
49.6(V
V
V
V
V
V
O
O
O
O
UQQ-3.3/25-Q12, UQQ-3.3/25-Q48
O
O
O
O
O
– 3.3
– 5
– 12
– 15
O
– 24
UQQ-12/8-Q12, UQQ-12/8-Q48
– 1.226)
– 1.226)
– 1.226)
UQQ-5/17-Q12, UQQ-5/20-Q48
– 1.226)
– 1.226)
+OUTPUT
–OUTPUT
+OUTPUT
–OUTPUT
+SENSE
–SENSE
+SENSE
–SENSE
UQQ-15/7-Q12
UQQ-24/4-Q12
TRIM
TRIM
–10.2
–10.2
–10.2
–10.2
–10.2
25 Mar 2011 MDC_UQQ.B01 Page 15 of 18
8
7
6
5
8
7
4
6
5
4
R
TRIM DOWN
R
R
R
R
R
T
T
T
T
T
DOWN
DOWN
DOWN
DOWN
DOWN
R
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UQQ Series
TRIM UP
(k ) =
(k ) =
(k ) =
(k ) =
(k ) =
Trim Down
3.3 – V
15 – V
24 – V
12 – V
5 – V
60.45
76.56
124.2
16.31
25.01
LOAD
LOAD
O
O
O
O
O
–10.2
–10.2
–10.2
–10.2
–10.2