UWE-15/5-Q12P-C Murata Power Solutions Inc, UWE-15/5-Q12P-C Datasheet - Page 22

• Manufacturer Part Number: UWE-15/5-Q12P-C
• Description: DC/DC TH Q12-15V UWE
• Manufacturer: Murata Power Solutions Inc
• Series: UWEr
• Type: Isolated with Remote On/Offr

Specifications of UWE-15/5-Q12P-C

• Output: 15V
• Number Of Outputs: 1
• 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
• Product: Isolated
• 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: C77
• Output Type: Isolated
• Output Voltage: 15 V
• 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: 811-2227-5

tolerances and factory-adjusted output accuracy. V
On/Off Enable Control Ground Bounce Protection
To improve reliability, if you use a small signal transistor or other external
circuit to select the Remote On/Off control, make sure to return the LO side
directly to the –Vin power input on the DC/DC converter. To avoid ground
bounce errors, do not connect the On/Off return to a distant ground plane or
current-carrying bus. If necessary, run a separate small return wire directly to
the –Vin terminal. There is very little current (typically 1-5 mA) on the On/Off
control however, large current changes on a return ground plane or ground bus
can accidentally trigger the converter on or off. If possible, mount the On/Off
transistor or other control circuit adjacent to the converter.
Do not connect
control transistor
through remote
power bus
Note: Resistor values are in k:. Adjustment accuracy is subject to resistor
R
R
R
R
R
T
T
T
T
T
UP
UP
UP
UP
UP
On/Off
Control
Transistor
(k:) =
(k:) =
(k:) =
(k:) =
(k:) =
Figure 9. On/Off Enable Control Ground Bounce Protection
13.3(V
20.4(V
49.6(V
62.9(V
101(V
Trim Up
V
V
V
V
V
O
O
O
O
O
O
O
O
O
O
– 3.3
– 1.226)
– 12
– 15
– 24
– 5
– 1.226)
– 1.226)
– 1.226)
– 1.226)
Ground plane or power return bus
Trim Equations
3.3 Volt Output
–10.2
–10.2
–10.2
–10.2
–10.2
12 Volt Output
15 Volt Output
24 Volt Output
5 Volt Output
Preferred location
of On/Off control
adjacent to -Vin
terminal
R
R
R
R
R
T
T
T
T
T
DOWN
DOWN
DOWN
DOWN
DOWN
O
= desired output voltage.
(k:) =
(k:) =
(k:) =
(k:) =
(k:) =
Trim Down
Install separate
return wire for
On/Off control
with remote
transistor
3.3 – V
12 – V
15 – V
24 – V
5 – V
16.31
25.01
60.45
76.56
124.2
DC/DC Converter
www.murata-ps.com
O
O
O
O
O
+ Vin
On/Off Enable
-Vin return
–10.2
–10.2
–10.2
–10.2
–10.2
through low value resistors. Nevertheless, if the sense function is not used for
remote regulation the user should connect the +Sense to +V
–V
tion, thereby overcoming moderate IR drops in pcb conductors or cabling.
The remote sense lines carry very little current and therefore require minimal
cross-sectional-area conductors. The sense lines are used by the feedback
control-loop to regulate the output. As such, they are not low impedance points
and must be treated with care in layouts and cabling. Sense lines on a pcb
should be run adjacent to dc signals, preferably ground. In cables and discrete
wiring applications, twisted pair or other techniques should be implemented.
age at the DC/DC and the sense voltage at the DC/DC provided that:
the Sense pin. Therefore, excessive voltage differences between V
Sense in conjunction with trim adjustment 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
UWE’s specifi ed rating or cause output voltages to climb into the output over-
voltage region. Also, the use of Trim Up and Sense combined may not exceed
+10% of V
Remote Sense Note: The Sense and V
OUT
UWE series converters have a sense feature to provide point of use regula-
UWE series converters will compensate for drops between the output volt-
Output overvoltage protection is monitored at the output voltage pin, not
at the DC/DC converter pins.
OUT
[V
(V
–INPUT
ON/OFF
CONTROL
+INPUT
OUT
OUT
. Therefore, the designer must ensure:
(+) –V
at pins) x (I
Figure 10. Remote Sense Circuit Confi guration
OUT
(–)] –[Sense(+) –Sense (–)] d 5% V
OUT
) d rated output power
14 Mar 2011 MDC_UWE Series.A28 Page 22 of 23
+OUTPUT
–OUTPUT
+SENSE
–SENSE
TRIM
Eighth-Brick DC/DC Converters
OUT
Contact and PCB resistance
Contact and PCB resistance
lines are internally connected
Sense Current
losses due to IR drops
losses due to IR drops
Sense Return
email: [e-mail]
I
OUT
UWE Series
Wide Input, Isolated
I
OUT
Return
OUT
OUT
and –Sense to
LOAD
OUT
and