DC-DC CONVERTERS High Current, High Efficiency, Low Profile 1
2 YEAR WARRANTY
NEW Product
All specifications are typical at nominal input, full load at 25 °C ambient unless otherwise stated
SPECIFICATIONS
File Name: quarter_brick_single.pdf Rev (07): 17 Nov 2005
Quarter-Brick Series
Single output
International Safety Standard Approvals
UL/cUL CAN/CSA 22.2 No. 60950-00 : UL 60950
File No. E135734/60950
VDE Certificate No. 10401-3336-0197
EMC CHARACTERISTICS
Immunity:
ESD air enclosure EN61000-4-2 8 kV/6 kV(O/P within spec.)
Radiated field enclosure EN61000-4-3 10 V/m (O/P within spec.)
Conducted EN61000-4-6 10 V (O/P within spec.)
Input transients 100 V, 100 ms
GENERAL SPECIFICATIONS
Basic insulation Input/output 2250 Vdc
Switching frequency Fixed 480 kHz
Approvals and (See Note 3) EN60950-1 VDE
standards UL/cUL 60950
Material flammability UL94V-0
Weight 37 g (1.30 oz)
MTBF Telcordia Tech SR-332 3,866,933 hours
ENVIRONMENTAL SPECIFICATIONS
Thermal performance Operating ambient, -40 °C to +85 °C
temperature
Non-operating -55 °C to +125 °C
PROTECTION
Short-circuit Continuous
Overvoltage Non-latching
Thermal 125 ºC hot spot temperature
with automatic recovery
Patent No. 6,765,810
Other Patents Pending
OUTPUT SPECIFICATIONS
Voltage adjustability 80% to 110%
Minimum load 0%
Overshoot At turn-on and turn-off None
Undershoot None
Transient response 70 mV,
(See Note 1) typ. deviation
20 µs recovery
INPUT SPECIFICATIONS
Input voltage range 24 V nominal 18-36 Vdc
48 V nominal 36-75 Vdc
Input current No load 85 mA to 150 mA
Remote OFF 5 mA
Active high remote ON/OFF
Logic compatibility Open collector ref to -input
ON Open circuit or >2.4 Vdc
OFF <0.4 Vdc
Undervoltage lockout Power up 35.5 V (typ.)
Power down 33.5 V (typ.)
Start-up time Power up 10 ms (typ.)
(See Note 2) Remote ON/OFF 10 ms (typ.)
• Ultra high efficiency topology
•
Unprecedented useable output power levels
•
High power density (200 W/in
3
) open-frame technology
• Wide ambient temperature range, -40 ºC to +85 ºC
• 80% to 110% output trim
• Monotonic start-up in normal and prebiased loads
• Basic insulation system
• Overvoltage and overtemperature protection
• Secondary side control, no optocouplers,
fast transient response
• 100 V, 100 ms input transient rated
• Available RoHS compliant
This is a new high efficiency, open-frame, low profile, single board, isolated dc-dc converter
series in an industry standard quarter-brick package that provides up to 200 W of output power.
The series delivers very high output current at low voltages, and excellent useable power for
today’s high performance applications. The series features two input voltage ranges of 18 Vdc
to 36 Vdc and 36 Vdc to 75 Vdc and is available with output voltages of 1.2 V, 1.5 V, 1.8 V,
2.5 V, 3.3 V and 5 V. The output voltage is adjustable from 80% to 110% of the nominal value.
The series also has a remote ON/OFF capability. Overcurrent, overvoltage and overtemperature
protection features are included as standard. Full international safety approval including
EN60950-1 VDE and UL/cUL60950, reduces compliance costs and time to market.
