PD5036 Ver la hoja de datos (PDF) - Unspecified

Número de pieza

componentes Descripción

Fabricante

PD5036

TELEPHONE RING GENERATOR CONTROLLER

Unspecified 

SYNCHRONIZATION SIGNALS

BRC: The BRC out put c ontrols t he ri ng generat or’s out put pow er

bridge. The bridge converts the half s ine rec tified w ave t o a f ull s ine

wave at the output.

The BRC signal i s a l ogic l evel s quare wave at t he s ame f requency of

the output sine wave.

SYNC: The SYNC out put i s us ed t o s ynchronize out put ri nging rel ays

switching with the ri ng generat or’s out put vol tage zero c rossing. The

SYNC out put produc es a hi gh l ogic l evel pulse to indicate zero

crossing. The SYNC pulse rises a s hort time prior to the output signal’s

zero crossing in order to allow for the relay response time. Exact signal

timing are i ndicated i n t he E LECTRICAL CHA RACTERISTICS SYNC

OUTPUT parameters.

PD5036

TELEPHONE RING GENERATOR CONTROLLER

to SLIC Audio Line

O2

PD5019

Based Ring

Generator

O1

SYNC

Relay

VBAT = -48v

TIP

RING

Control

Zero crossing relay control utilizing the SYNC output

LOAD REGULATION

Load regulation refers t o t he degree of output voltage deviations as a

function of output rm s c urrent variations. The load regulation capability

of a ring generator built around t he P D5036 w ill be ef fected by a

number of design and component selection criteria:

♦ The quality of the transformers’ primary to secondary coupling and

winding leakage. Good coupling and low leakage will im prove load

regulation.

♦ Impedance of the transformer w inding and c ore l osses. Low

impedance and low core losses will improve load regulation.

♦ Input capacitor ESR. Low E SR w ill reduc e input v oltage ripple,

which will im prove t he input v oltage A/D sampling accuracy. Since

the input voltage A/D s ensing di rectly ef fects t he devi ce’s out put

voltage, high sampling accuracy will improve load regulation.

♦ FET dropout vol tage. Low m ain s witching and s ynchronous

switching FETs dropout voltage will improve load regulation.

♦ Output bridge transistor’s dropout voltage. Low dropout voltage will

improve load regulation.

In proper des ign, l oad regulation of 6% f or l oads varyi ng f rom 10% t o

100%, and 10% regulation f or l oads varyi ng f rom no l oad t o 100% of

the circuit’s rated load, can be achieved. Rat ed l oad is def ined as t he

equivalent loading that does not cause the PD5036 to decrease the ring

generator’s output voltage, or t rigger t he overl oad/short c ircuit

protection.

PowerDsine Ltd. Tel: +972-3-934-7663 • Fax: +972-3-934-7669 • Email: sales@powerdsine.com

PowerDsine Inc. Tel: +516-756-4680 • Fax: +516-756-4691• Email: pwrdsine@erols.com

Share Link: