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UCH-3.3/35-D24PB-C

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18
UCH-5/10-D48 UCH-5/20-D24 UCH-5/30-D48 UCH-12/4.2-D48 UCH-12/12.5-D48 UCH-15/6.7-D48
Input
Input voltage range See ordering guide.
Start-up threshold, Volts 34 16 35 35 35 35
Undervoltage
shutdown, V
33 15 34 33.5 33.5 33
Overvoltage shutdown none
Refl ected (back) ripple cur-
rent, mA pk-pk
15 20 15 20 20 20
Input Current
Full load conditions See ordering guide.
Inrush transient, A
2
sec 0.05
Output short circuit, mA 50
Low line (VIN = min.), Amps 1.54 6.17 4.63 1.51 4.47 3.06
Standby mode, mA
(Off, UV, OT shutdown)
4104 1
Internal input fi lter type Pi L-C Pi L-C
External recommended fast
blow fuse, Amps
10 10 7.5 10 7.5
Reverse polarity
protection
None. Install external fuse.
Remote On/Off Control
Positive logic
(P model suffi x)
OFF = Ground pin to +1V max.
ON = Open or +3.5 to +15V max
Negative logic
(N model suffi x)
OFF = Open or +2.5V to +15V max.
ON = –0.1V to +0.8V max
Current, mA 1
Output
Voltage output range See ordering guide.
Voltage output accuracy ±1% of VNOM.
Adjustment range –10 to +10% of VNOM.
Temperature coeffi cient
over oper. Temp. range
±0.02% of V
OUT range per °C
Minimum loading No minimum loading.
Remote sense
compensation
+10%.
Ripple/noise
(20 MHz bandwidth)
See ordering guide.
Line/Load regulation See ordering guide.
Effi ciency See ordering guide.
Maximum capacitive loading,
Low ESR <0.02 max.,
resistive load, F
10,000 10,000 max. 20,000 max. 5000 10,000 1,000
17
www.murata-ps.com/support
Single Output UCH Models
Isolated, “Half-Brick”
1.8−15V Output DC/DC Converters
MDC_UCH Models.C01 Page 4 of 18
UCH-1.8/40-D48 UCH-2.5/40-D48 UCH-3.3/10-D24 UCH-3.3/10-D48 UCH-3.3/15-D48 UCH-3.3/35-D24 UCH-3.3/30-D48
Isolation Voltage
Input to Output, Volts min. 2250
Input to baseplate, Volts min. 1500
Baseplate to output, Volts min. 1500
Isolation resistance, MΩ 100
Isolation capacitance, pF 1000
Isolation safety rating Basic insulation
Current limit inception (98% of
V
OUT, after warmup), Amps
59 max. 49 15 15 19 40 35
Short circuit protection method Current limiting, hiccup autorestart. Remove overload for recovery.
Short circuit current, Amps 5
Short circuit duration Output may be shorted continuously to ground (no damage).
Overvoltage protection, Volts
(via magnetic feedback)
2.7 max. 3.75 max. 4.95 V max 4.62 max. 4.95 max.
Prebiased Startup Starts if external voltage is less than VNOM.
Dynamic characteristics
Dynamic load response
(50-75-50% load step)
100 µSec to ±1%
of fi nal value
100 µSec to ±1%
of fi nal value
200 µSec to ±1%
of fi nal value
200 µSec to ±1%
of fi nal value
200 µSec to ±1%
of fi nal value
200 µSec to ±1%
of fi nal value
200 µSec to ±1%
of fi nal value
Start-up time
VIN to VOUT regulated, mSec 10 max.
Remote On/Off to VOUT
regulated, mSec
10 max.
Switching frequency, KHz 360 420 ± 40 330 ± 40
Environmental
Calculated MTBF 1.6M hrs. TBD 1.8M hrs. TBD
Operating ambient temperature
range, °C (with derating)
−40 to +85 (See Derating Curves)
Operating PC board
temperature, °C
−40 to +110
Storage temperature range, °C −55 to +125
Thermal protection/shutdown, °C +115 +115 +120
Relative humidity To +85°C/85%, non-condensing
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 ca-
tions may cause damage to the product. Your production environment may differ; therefore please thoroughly review these guidelines with your process engineers.
Wave Solder Operations for through-hole mounted products (THMT)
For Sn/Ag/Cu based solders: For Sn/Pb based solders:
Maximum Preheat Temperature 115° C. Maximum Preheat Temperature 105° C.
Maximum Pot Temperature 270° C. Maximum Pot Temperature 250° C.
Maximum Solder Dwell Time 7 seconds Maximum Solder Dwell Time 6 seconds
www.murata-ps.com/support
Single Output UCH Models
Isolated, “Half-Brick”
1.8−15V Output DC/DC Converters
MDC_UCH Models.C01 Page 5 of 18
UCH-5/10-D48 UCH-5/20-D24 UCH-5/30-D48 UCH-12/4.2-D48 UCH-12/12.5-D48 UCH-15/6.7-D48
Isolation Voltage
Input to Output, Volts min. 2250
Input to baseplate, Volts min. 1500
Baseplate to output, Volts min. 1500
Isolation resistance, MΩ 100
Isolation capacitance, pF 1000
Isolation safety rating Basic insulation
Miscellaneous
Current limit inception (98% of VOUT,
after warmup), Amps
13 26 35 5.4 14.5 7.4
Short circuit protection method Current limiting, hiccup autorestart. Remove overload for recovery.
Short circuit current, Amps 5
Short circuit duration Output may be shorted continuously to ground (no damage).
Overvoltage protection, Volts
(via magnetic feedback)
7.75 max. 7.5 max. 7.5 18 max. 16.8 max. 17.5
Prebiased Startup Starts if external voltage is less than VNOM.
Dynamic characteristics
Dynamic load response
(50-75-50% load step)
200 µSec to ±1%
of fi nal value
200 µSec to ±1%
of fi nal value
200 µSec to ±1%
of fi nal value
250 µSec to ±1%
of fi nal value
250 µSec to ±1%
of fi nal value
250 µSec to ±1%
of fi nal value
Start-up time
VIN to VOUT regulated, mSec 10 max.
Remote On/Off to VOUT
regulated, mSec
10 max.
Switching frequency, KHz 300 ± 30 330 ± 40 300 ± 30 335 ± 35 335 ± 35 350 ± 40
Environmental
Calculated MTBF 1.6M hours TBD 1.9M hours 1.6M hours TBD
Operating ambient temperature
range, °C (with derating)
−40 to +85 (See Derating Curves)
Operating PC board
temperature, °C
−40 to +110
Storage temperature range, °C −55 to +125
Thermal protection/shutdown, °C +120 +115
Relative humidity To +85°C/85%, non-condensing
www.murata-ps.com/support
Single Output UCH Models
Isolated, “Half-Brick”
1.8−15V Output DC/DC Converters
MDC_UCH Models.C01 Page 6 of 18
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18

UCH-3.3/35-D24PB-C

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