2

TET2000 Series

tech.support@psbel.com

TET

2000

-

12

-

086

x

A

Option Code

Product Family Power Level

Dash

V1 Output

Dash

Width

Airflow

Input

TET Front-End

2000 W

12 V

86 mm

A: AC

Blank:

Standard model

The TET2000-12-086 Series is a fully DSP controlled, highly efficient front-end power supply. It incorporates resonant-soft-switching

technology and interleaved power trains to reduce component stresses, providing increased system reliability and very high

efficiency. With a wide input operating voltage range and minimal linear derating of output power with respect to ambient

temperature, the TET2000-12-86NA maximizes power availability in demanding server, switch, and router applications. The power

supply is fan cooled and ideally suited for server integration with a matching airflow path.

The PFC stage is digitally controlled using a state-of-the-art digital signal processing algorithm to guarantee best efficiency and

unity power factor over a wide operating range.

The DC-DC stage uses soft switching resonant techniques in conjunction with synchronous rectification. An active OR-ing device

on the output ensures no reverse load current and renders the supply ideally suited for operation in redundant power systems.

The always-on +12V standby output provides power to external power distribution and management controllers. Its protection with

an active OR-ing device provides for maximum reliability.

Status information is provided with front-panel LED. In addition, the power supply can be monitored and controlled (i.e. fan speed

setpoint) via I2C communication interface with Power Management Bus protocol. It allows full monitoring of the supply, including

input and output voltage, current, power, and inside temperatures. The same I2C bus supports the bootloader to allow field update

of the firmware in the DSP controllers.

Cooling is managed by a fan, controlled by the DSP controller. The fan speed is adjusted automatically depending on the actual

power demand and supply temperature and can be overridden through the I2C buses.

Logic Signals

V1Sense+

L

+12V

SB

Aux

Converter

GND

V1

Vsb

N

PFC

DC

DC

Digital

Prim

Controls

V1Sense-

I2C

Filter

PE

Communication Bus

Digital

Sec

Controls

EEPROM

FAN

Figure 1. TET2000-12-086 Series Block Diagram

Stresses in excess of the absolute maximum ratings may cause performance degradation, adversely affect long-term reliability and

cause permanent damage to the supply.

PARAMETER

CONDITIONS / DESCRIPTION

MIN

MAX

UNITS

Vi maxc

Maximum Input

Continuous

264

VAC