UWE-15/5-Q12PB-C Murata Power Solutions Inc, UWE-15/5-Q12PB-C Datasheet - Page 21

• Manufacturer Part Number: UWE-15/5-Q12PB-C
• Description: CONV DC/DC 75W 15V 5A
• Manufacturer: Murata Power Solutions Inc
• Series: UWEr
• Type: Isolated with Remote On/Offr

Specifications of UWE-15/5-Q12PB-C

• Number Of Outputs: 1
• Output: 15V
• Power (watts): 75W
• Mounting Type: Through Hole
• Voltage - Input: 9 ~ 36V
• Package / Case: 8-DIP Module, 1/8 Brick
• 1st Output: 15 VDC @ 5A
• Size / Dimension: 2.30" L x 0.90" W x 0.38" H (58.4mm x 22.9mm x 9.7mm)
• Power (watts) - Rated: 75W
• Operating Temperature: -40°C ~ 85°C
• Efficiency: 91.5%
• Approvals: CAN, CSA, EN, IEC, UL
• Output Power: 75 W
• Input Voltage Range: 9 V to 36 V
• Input Voltage (nominal): 12 V
• Output Voltage (channel 1): 15 V
• Output Current (channel 1): 5 A
• Isolation Voltage: 1.5 KV
• Package / Case Size: Eighth Brick
• Product: Isolated
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• 3rd Output: -
• 2nd Output: -
• 4th Output: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 811-2235-5

On/Off Control is left open or is pulled high, as per Figure 4. Positive-polarity
devices are disabled when the On/Off Control is pulled low.
(or pulled high), and on when the On/Off Control is pulled low with respect to
–V
relay or an open-collector/open-drain drive circuit (optically isolated if appropri-
ate). The drive circuit should be able to sink appropriate current (see Performance
Specs) when activated and withstand appropriate voltage when deactivated.
Applying an external voltage to the On/Off Control when no input power is
applied to the converter can cause permanent damage to the converter.
Trimming Output Voltage
UWE converters have a trim capability that allows users to adjust the output
voltages. Adjustments to the output voltages can be accomplished via a trim pot
(Figure 6) or a single fi xed resistor as shown in Figures 7 and 8. A single fi xed
resistor can increase or decrease the output voltage depending on its connec-
tion. The resistor should be located close to the converter and have a TCR less
than 100ppm/°C to minimize sensitivity to changes in temperature. If the trim
function is not used, leave the trim pin fl oating.
Positive-polarity models (“P" part-number suffi x) are enabled when the
Negative-polarity devices (“N” suffi x) are off when the On/Off Control is open
IN
Dynamic control of the remote on/off function is facilitated with a mechanical
as shown in Figure 5.
Figure 5. Driving the Negative Polarity On/Off Control Pin
Figure 4. Driving the Positive Polarity On/Off Control Pin
ON/OFF CONTROL
-INPUT
O N /O F F
C O N TR O L
–I N P U T
+ Vcc
CONTROL
+ Vcc
www.murata-ps.com
applicable, will increase the output voltage in this confi guration. A resistor con-
nected from the Trim to the –Output, or –Sense where applicable, will decrease
the output voltage in this confi guration.
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). Power derating
is based on maximum output current and voltage at the converter’s output
pins. Use of trim and sense functions can cause output voltages to increase,
thereby increasing output power beyond the converter's specifi ed rating or
cause output voltages to climb into the output overvoltage region. Therefore:
A single resistor connected from the Trim to the +Output, or +Sense where
Trim adjustments greater than the specifi ed range can have an adverse
Figure 7. Trim Connections To Increase Output Voltages Using a Fixed Resistor
Figure 8. Trim Connections To Decrease Output Voltages
–INPUT
ON/OFF
CONTROL
+INPUT
–INPUT
ON/OFF
CONTROL
+INPUT
–INPUT
ON/OFF
CONTROL
+INPUT
Figure 6. Trim Connections Using A Trimpot
(V
OUT
at pins) x (I
OUT
14 Mar 2011 MDC_UWE Series.A28 Page 21 of 23
+OUTPUT
–OUTPUT
+OUTPUT
+OUTPUT
–OUTPUT
–OUTPUT
+SENSE
–SENSE
and Sense, in conjunction with trim adjust-
+SENSE
+SENSE
–SENSE
–SENSE
Eighth-Brick DC/DC Converters
TRIM
OUT
TRIM
TRIM
) <= rated output power
R2
R1
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UWE Series
TURNS
Wide Input, Isolated
20k:
5-20
LOAD
LOAD
LOAD