UNR-2.5/10-D12 查看數據表（PDF） - DATEL Data Acquisition products

零件编号

产品描述 (功能)

生产厂家

UNR-2.5/10-D12

Non-Isolated, 3.3V 8-40 Watt, DC/DC Converters

DATEL Data Acquisition products  

®

®

INNOVATION and EXCELLENCE

Single Output

UNR Series

Non-Isolated, 3.3V

8-40 Watt, DC/DC Converters

Features

• Low cost

• 5V or 12V inputs

• 3.3V±1% (±33mV) outputs

• ±0.25% (±8mV) max. line regulation

• ±0.5% (±17mV) max. load regulation

• Guaranteed efficiencies to 86%

• Power densities to 29W/in3

• High output current ... small packages:

3A (1" x 1" package)

8A (2" x 1" package)

12A (2" x 2" package)

• No heat sinks required

• –40 to +100oC operating temperatures

• On/off/sync control

• UL, CSA, IEC safety approvals

• Customized VOUT (Contact DATEL)

New low-voltage microprocessor and memory chips are driving the migration

from centralized to distributed power processing in modern telecommunication and

computer systems. Powering these new chips requires local, on-board power

converters that rapidly source large amounts of current while maintaining accurate

voltages with minimal ripple and noise. The distribution losses, unpredictable

regulation and poor transient response of traditional centralized power systems are

no longer acceptable. Power processing at the "point-of-use" is frequently the only

way to achieve desired performance.

DATEL’s new UNR Series of non-isolated, 3.3V output, 5V or 12V input, switching

DC/DC converters were specifically designed for on-board usage in today’s mixed-

logic 5V/3.3V systems. They also support those systems that are already drawing

maximum current from their 5V buses and must resort to their 12V buses.

These low-cost, extremely efficient (typically 90%) power converters are capable

of delivering full rated output currents (2.5-12 Amps) while maintaining low case

temperatures without the need for heat sinks or any auxiliary cooling. UNR Series

devices combine proven circuit architectures, contemporary SMT-on-ceramic and

SMT-on-pcb assembly techniques, and a new thermally-conductive potting com-

pound to achieve high output power in the smallest packages possible.

DATEL is currently developing UNR Series devices that incorporate active load

sharing with output current/voltage-sensing capabilities. We can also quickly modify

existing devices for application-specific output voltages from 1.8 to 5 Volts. Please

contact us with your unique requirements ... we may already have the product you

need.

DATEL also makes a complete line of isolated 3.3V DC/DC converters that

operate from wide-range input voltages from 4.6 to 72V.

+VIN

+VOUT

INPUT

RETURN

LOGIC

GROUND

ON/OFF

CONTROL

PWM

CONTROLLER

REFERENCE &

ERROR AMP

OUTPUT

RETURN

Figure 1. Simplified Schematic

DATEL, Inc., 11 Cabot Boulevard, Mansfield, MA 02048 (U.S.A.) • Tel: (508)339-3000, (800)233-2765 Fax: (508)339-6356 • Email: datellit@mcimail.com

Share Link: