UHE-2.5/1000-D24-C Murata Power Solutions Inc, UHE-2.5/1000-D24-C Datasheet - Page 14

• Manufacturer Part Number: UHE-2.5/1000-D24-C
• Description: Module DC-DC 1-OUT 2.5V 10A 30W 6-Pin Case C-32
• Manufacturer: Murata Power Solutions Inc
• Type: Step Downr

Specifications of UHE-2.5/1000-D24-C

• Package: 6Case C-32
• Output Current: 10 A
• Output Voltage: 2.5 V
• Input Voltage: 24 V
• Number Of Outputs: 1
• Output Power: 30 W
• Switching Regulator: Yes

Features and Options
On/Off Control
The input-side, remote On/Off Control function (pin 4) can be ordered to operate
with either polarity:
and these devices are enabled when pin 4 is left open (or is pulled high, ap-
plying to +15V with respect to –Input, pin 2) as per Figure 4. Positive-polarity
devices are disabled when pin 4 is pulled low (0 to 0.8V with respect to –Input).
open (or pulled high, applying +3.5V to +15V), and on when pin 4 is pulled low
(0 to 0.8V) with respect to –V
mechanical relay or an open-collector/open-drain drive circuit (optically iso-
lated if appropriate). 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 pin 4 when no input power is
applied to the converter can cause permanent damage to the converter.
Trimming Output Voltage
UHE converters have a trim capability (pin 9) that allows users to adjust the
output voltages ±5% of V
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 connection. 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.
+Sense where applicable, will decrease the output voltage for all models with
the exception of the 1.2V models, which will increase the output voltage in this
confi guration. A resistor connected from the Trim (pin 9) to the –Output (pin 7),
Standard models are equipped with Positive-polarity (no part-number suffi x)
Optional Negative-polarity devices ("N" suffi x) are off when pin 4 is left
Dynamic control of the remote on/off function is best accomplished with a
A single resistor connected from the Trim (pin 9) to the +Output (pin 6), or
Figure 4. Driving the Positive Polarity On/Off Control Pin
Figure 5. Driving the Negative Polarity On/Off Control Pin
4
2
4
2
ON/OFF
CONTROL
–INPUT
OUT
ON/OFF
CONTROL
–INPUT
(±10% for T models). Adjustments to the output
IN
as shown in Figure 5.
+ Vcc
13V CIRCUIT
5V CIRCUIT
+ Vcc
www.murata-ps.com
or –Sense where applicable, will increase the output voltage for all models with
the exception of the 1.2V models, which will decrease the output voltage in this
confi guration.
Soldering Guidelines
Murata Power Solutions recommends the specifi cations below when installing these
converters. These specifi cations vary depending on the solder type. Exceeding these
specifi cations may cause damage to the product. Be cautious when there is high atmo-
spheric humidity. Your production environment may differ; therefore please thoroughly
review these guidelines with your process engineers.
For Sn/Ag/Cu based solders:
Maximum Preheat Temperature
Maximum Pot Temperature
Maximum Solder Dwell Time
For Sn/Pb based solders:
Maximum Preheat Temperature
Maximum Pot Temperature
Maximum Solder Dwell Time
Wave Solder Operations for through-hole mounted products (THMT)
Figure 7. Trim Connections To Decrease Output Voltages Using a Fixed Resistor
2
4
1
(for all models except 1.2V models which will decrease V
(for all models except 1.2V models which will increase V
2
4
1
2
4
1
Figure 8. Trim Connections To Increase Output Voltages
–INPUT
ON/OFF
CONTROL
+INPUT
–INPUT
ON/OFF
CONTROL
+INPUT
–INPUT
ON/OFF
CONTROL
+INPUT
Figure 6. Trim Connections Using A Trimpot
2-10 Amp, 12-30 Watt DC/DC Converters
28 Mar 2011 MDC_UHE_12-30W Series.B16 Page 14 of 16
+OUTPUT
–OUTPUT
+OUTPUT
Isolated, High Effi ciency, 1.6" × 2"
–OUTPUT
+OUTPUT
–OUTPUT
+SENSE
–SENSE
+SENSE
–SENSE
+SENSE
–SENSE
TRIM
TRIM
TRIM
6
5
9
8
7
6
5
9
8
7
6
5
9
8
7
115° C.
270° C.
7 seconds
105° C.
250° C.
6 seconds
R2
R1
TURNS
20k
5-22
email: [e-mail]
UHE Series
LOAD
LOAD
LOAD
OUT
OUT
)
)