廬
廬
INNOVATION and EXCELLENCE
Single Output
UEP Models
High-Density, 2" x 1"
1-4.5 Amp, 11-18 Watt DC/DC's
Features
Models Include
3.3V @ 4.5A
5V @ 3.5A
12V @ 1.2A
15V @ 1A
Choice of 3 input ranges:
10-18V, 18-36V, 36-75V
Guaranteed ef鏗乧iencies to 86%
11-18 Watts in 1" x 2" package
340kHz synchronous-recti鏗乪r topologies
鈥?0 to +60/70擄C ambient w/o derating
Fully isolated (1500Vdc); I/O protected
Trim and On/Off Control
UL60950/EN60950 certi鏗乪d
CE mark (75V
IN
models)
The UEP 11-18Watt series DC/DC converter is an alternative pinout for DATEL鈥檚
鏗俛gship A-Series. An external pinout con鏗乬uration affords the design layout to be
oriented for optimal thermal performance thereby increasing available output power
as much as 20%. Available in a 1" x 2" package, these converters can deliver up to
18 Watts at the same ambient temperatures as their 15 Watt counterparts.
By combining a high-frequency (340kHz), high-ef鏗乧iency (to 88%), synchronous-
recti鏗乪r topology with the newest components and time-tested, fully automated,
SMT-on-pcb construction, these UEP Models are able to bring you 11-18W in the
standard 2" x 1" package from which most competitors can only get 5-10W. All
UEP鈥檚 deliver their full output power over ambient temperature ranges from 鈥?0擄C
to as high as +70擄C (model and input voltage dependent) without heat sinks or
supplemental forced-air cooling. Devices derate to +100擄C.
Output voltages are 3.3, 5, 12 or 15 Volts. Input voltage ranges are 10-18V
("D12" models), 18-36V ("D24" models) or 36-75V ("D48") models. All models fea-
ture input pi 鏗乴ters, input undervoltage and overvoltage lockout, input reverse-polarity
protection, output overvoltage protection, output current limiting, and continuous
short-circuit protection. Standard features also include On/Off Control and output-
trim. All models are certi鏗乪d to IEC950, UL60950 and EN60950 safety requirements
for OPERATIONAL insulation. "D48" models (36-75V inputs) are CE marked.
UEP 11-18W DC/DC鈥檚 are packaged in low-cost, light-weight, diallyl phthalate
(UL94V-0 rated) plastic packages with standoffs. EMC compliance is achieved via a
low-noise design rather than through expensive metal shielding.
+INPUT
+OUTPUT
SWITCH
CONTROL
鉃€
鈥揙UTPUT
鉃€
鈥揑NPUT
PWM
CONTROLLER
UVLO & OVLO
COMPARATORS
ON/OFF
CONTROL
OPTO
ISOLATION
REFERENCE &
ERROR AMP
TRIM
鉃€
1.5, 1.8, 2.5, 3.3V and 5V-output models use the synchronous-recti鏗乪r con鏗乬uration shown above.
12V and 15V-output models employ a standard, diode-recti鏗乧ation architecture.
Figure 1. Simpli鏗乪d Schematic
DATEL, Inc., Mans鏗乪ld, MA 02048 (USA) 路 Tel: (508)339-3000, (800)233-2765 Fax: (508)339-6356 路 Email: sales@datel.com 路 Internet: www.datel.com
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