UHP-3-3-30-D48 Datasheet, PDF (1/4 Pages) List of Unclassifed Manufacturers – Single Output UHP Models

PRELIMINARY
®
®
INNOVATION and EXCELLENCE
Single Output
UHP Models
3.3 Volts @ 30 Amps
100 Watt, DC/DC Converters
Features
s Regulated 3.3V output @ 30 Amps
s Input range: 36V-75V
s Open frame: 2.3" x 2.4" x 0.47"
s Industry-standard package/pinout
s Light weight: 2.24 ounces (63.5g)
s Remose sense, Trim, On/Off Control
s High efficiency: 89%
s _{Fully isolated, 1500Vdc guaranteed}
s _{Input under and overvoltage shutdown}
s _{Output overvoltage protection}
s _{Short circuit protection; thermal shutdown}
s _{UL1950 and EN60950 safety approvals}
s _{CE mark}
DATEL's fully isolated UHP series of DC/DC converters affords users a practical
solution for their low-voltage/high-current applications. With an input voltage range of
36 to 75 Volts, the UHP-3.3/30-D48 delivers 30 Amps of output current from a fully
regulated 3.3V output. Using both surface-mount technology and planar magnetics,
these converters are manufactured on a 2.3" x 2.4" open-frame package with an
industry-standard pinout configuration.
UHP converters utilize a full-bridge, fixed-frequency topology along with syn-
chronous output rectification to achieve a high efficiency of 89%. This efficiency,
coupled with the open-frame package that allows unrestricted air flow, reduces
internal component temperatures thereby allowing operation at elevated ambient
temperatures.
These DC/DC's provide output trim, sense pins and primary side on/off control
(available with positive or negative logic) or sync. Standard features also include
input overvoltage and undervoltage shutdown circuitry, output overvoltage protec-
tion, output short-circuit and current limiting protection and thermal shutdown. All
devices meet IEC950, UL1950 and EN60950 safety standards and carry the CE
mark (meet LVD) requirements). CB reports are available on request.
+INPUT
–INPUT
PRIMARY
SWITCH
CONTROL
PWM
CONTROLLER
UV & OV
COMPARATORS
THERMAL
SHUTDOWN
SECONDARY
SWITCH
CONTROL
OPTO
ISOLATION
REFERENCE &
ERROR AMP
+3.3V OUTPUT
OUTPUT
RETURN
+SENSE
–SENSE
Figure 1. Simplified Schematic
DATEL, Inc., Mansfield, MA 02048 (USA) · Tel: [phone] Fax: [phone] · Email: [e-mail] · Internet: www.datel.com