®
®
INNOVATION and EXCELLENCE
Triple Output
TPB Models
High-Efficiency, Smaller-Package
25-40 Watt, DC/DC Converters
Features
■ 25/30/35/40W output power
■ Standard pinout! Smaller size!
■ New 2" x 3" package fits 3" x 3" footprint
■ Output voltages: +5V/±12V or +5V/±15V
■ Four input voltage ranges:
10-36V, 18-36V
18-72V, 36-72V
■ High efficiencies (to 86%)
■ Fully isolated, 750Vdc guaranteed
■ Thermal shutdown
■ VOUT trim and on/off control
■ Safety approvals pending
■ Modifications and customs for OEM's
DATEL’s TPB Model, 25-40 Watt, triple-output DC/DC power converters bring you
efficient "on-board" power processing in a cost-effective smaller package with a
standard pinout.The 2" x 3" TPB "footprint" conforms with the industry-standard pinout
and pin geometries of most 3" x 3" devices (a 33% space savings) while delivering as
much as 60% more power (40W vs. 25W).
Applicable to a wide range of telecom, computer and other OEM applications, TPB
Model DC/DC’s operate from four input voltage ranges (10-36V for "Q12" models, 18-
36V for "D24" models, 18-72V for "Q48" models, and 36-72V for "D48" models).
Available output voltages are +5 and ±12V or +5 and ±15V.
For improved reliability and affordability, DATEL uses contemporary, high-speed,
automatic-assembly techniques to construct the TPB’s traditional, field-proven, SMT-on-
pcb designs. Devices employ corrosion-resistant steel cases with heavy zinc top plates
(traditionally referred to as baseplates). Heat generating transformer cores and power
semiconductors are mounted directly to the baseplates, which also have threaded
inserts for add-on heat sinks or pcb mounting.Temperature derating information is
provided for operation with and without heat sinks and forced air flow.
All devices feature input pi filters, input overvoltage shutdown, output overvoltage
protection, output current limiting, and thermal shutdown. All units are temperature
cycled, burned in and automatically tested prior to shipment. UL, CSA, EN and IEC
compliance testing is currently under way as are full EMI/EMC characterizations.
+VIN
+12V (+15V)
–VIN
ON/OFF
CONTROL
(SYNC)
CASE
PWM
CONTROLLER
OPTO
ISOLATION
REFERENCE &
ERROR
AMPLIFIER
Figure 1. Simplified Schematic
–12V (–15V)
+5V
COMMON
TRIM
DATEL, Inc., Mansfield, MA 02048 (USA) • Tel: (508)339-3000, (800)233-2765 Fax: (508)339-6356 • Email: sales@datel.com • Internet: www.datel.com