TWR30W Datasheet, PDF (1/5 Pages) Murata Manufacturing Co., Ltd. – 30W, Triple Output DC/DC Converters

TWR Series
30W, Triple Output DC/DC Converters
FEATURES
Independently regulated 3.3V and ±12V or
±15V outputs
3.3V @ 4.25A and ±12V @ ±625mA
or ±15V @ ±500mA
30 Watts output power
87% efficiency; 75mV ripple/noise
Input ranges: 18-36V or 36-75V
2" x 2" plastic package
Designed to meet UL 1950 and EN60950
safety approvals
Fully isolated, 1500Vdc guaranteed
Basic Insulation transformer construction
Input under and overvoltage shutdown
Independent OVP; Short circuit protection
Thermal shutdown
This family of triple output DC/DC converters was developed for
xDSL line card applications. Two independently regulated converters
in a 2" x 2" x 0.5" plastic package offer 3.3V @ 4.25A and ± 12V @
±625mA or ± 15V @ ±500mA.
PRODUCT OVERVIEW
Unlike topologies that provide auxiliary bipolar
secondary voltages, the TWR-3.3/4250-12/625 and
TWR-3.3/4250-15/500 have fully regulated bipolar
control loops that offer the same ±1% load regula-
tion seen on the 3.3V primary output.
Available with input ranges of 18 to 36V (-D24), or
36 to 75V (-D48), this TWR series offers 87% effi-
ciency, ±1% line regulation, input overvoltage and
undervoltage shutdown circuitry, output overvolt-
age and short circuit protection, as well as current
limiting protection and thermal shutdown.
TWR triple output converters will deliver full output
power in ambient, still air environments rang-
ing from –40 to +65°C. Designed using Basic
Insulation transformer construction, this family of
converters guarantees 1500Vdc of isolation voltage
and meets IEC950, UL1950 and EN60950 safety
standards. "D48" models are CE marked (meet LVD
requirements).
SIMPLIFIED SCHEMATIC
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Typical topology is shown
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For full details go to
www.murata-ps.com/rohs
www.murata-ps.com
Technical enquiries email: [e-mail], tel: [phone]
MDC_TWR30.B02 Page 1 of 5