SIL25C Series
DC-DC CONVERTERS
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C Class Non-isolated
12 Vin single negative output
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NEW Product
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25 A current rating
Input voltage range: 10.2 Vdc to 13.8 Vdc
nominal output voltage: -5.05 Vdc
Industry leading value
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Cost optimized design
Excellent transient response
Output Voltage adjustability
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Supports silicon voltage migration
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Resulting in reduced design-in and qualification time
Designed in reliability: MTBF of 3 million hours
per Telcordia SR-332
Available RoHS compliant
The SIL25C Series is a new high density non-isolated dc-dc converter. The converter has
a wide input range (10.2 Vdc to 13.8 Vdc) and offers a -4.5 Vdc to -5.5 Vdc output voltage
range with a 25 A load. The series offers remote ON/OFF, overtemperature protection and
overcurrent protection as standard. The remote sense feature enables the SIL25C
compensate for voltage drops between the converters output and the load. With full
international safety approvals including EN60950 and UL/cUL60950 the SIL25C reduces
compliance costs and time to market.
2 YEAR WARRANTY
All specifications are typical at nominal input, full load at 25 °C ambient unless otherwise stated
SPECIFICATIONS
OUTPUT SPECIFICATIONS
Voltage adjustability
(See Note 1)
-4.5 Vdc to -5.5 Vdc
±3.0%
±1.0% max.
±1.0% max.
0 A/25 A
(See Note 2)
Deviation
100 mV pk-pk
50 mV rms
75 mV typ.
150 µs recovery to
within regulation band
INPUT SPECIFICATIONS (CONTD.)
Turn ON threshold
Turn OFF threshold
GENERAL SPECIFICATIONS
Efficiency
Switching frequency
Approvals and
standards (pending)
Material flammability
Weight
MTBF
Telcordia SR-332
90%
Fixed (2 phase) 250 kHz typ. per phase
(See Note 7)
TÜV Product Services
IEC60950, UL/cUL60950
UL94V-0
28.3 g (1 oz)
3,000,000 hours
10 Vdc
9.5 Vdc
Output setpoint accuracy Using 1.0% trim resistors
Line regulation
Load regulation
Min./max. load
Ripple and noise
5 Hz to 20 MHz
Transient response
(See Note 3)
Low line to high line
Full load to min. load
INPUT SPECIFICATIONS
Input voltage range
Input current
Input current (max.)
Input reflected ripple
Remote ON/OFF
Logic compatibility
ON
OFF
Start-up time
(See Note 5)
Power up
Remote ON/OFF
Nominal 12 V
No load
Remote OFF
(See Note 4)
(See Note 2)
10.2-13.8
+Vdc
400 mA
30 mA
14.2 A max. @ Io max.
and Vin = 10.8 V
300 mA (pk-pk)
Logic high
>2.4 Vdc
<1.2 Vdc
<10 ms
<10 ms
ENVIRONMENTAL SPECIFICATIONS
Thermal performance
(See Note 8)
Operating ambient,
temperature
Non-operating
-40 ºC to +80 ºC
-40 ºC to +125 ºC
PROTECTION
Short-circuit
Over-temperature
RECOMMENDED SYSTEM CAPACITANCE
Input capacitance
Output capacitance
(See Note 9)
(See Note 9)
3 x 270 µF
3 x 680 µF
Hiccup, non-latching
Hiccup, non-latching
International Safety Standard Approvals (pending)
UL/cUL CAN/CSA 22.2 No. TBD
UL60950 File No. TBD
TÜV Product Service (EN60950) Certificate No. TBD
CB report and certificate to TBD
File Name: sil25c_12_neg.pdf Rev (02): 16 Dec 2005
EMERSON-NETWORKPOWER [ EMERSON NETWORK POWER ]
