TEA1506 Просмотр технического описания (PDF) - Philips Electronics

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производитель

TEA1506

GreenChip™II SMPS control IC

Philips Electronics 

Philips Semiconductors

GreenChip™II SMPS control IC

Product specification

TEA1506P; TEA1506AP;

TEA1506T; TEA1506AT

APPLICATION INFORMATION

A converter with the TEA1506 consists of an input filter, a transformer with a third winding (auxiliary), and an output stage

with a feedback circuit.

Capacitor CVCC (at pin VCC) buffers the supply voltage of the IC, which is powered via the resistor RS during start-up and

via the auxiliary winding during operation.

A sense resistor converts the primary current into a voltage at pin Isense. The value of this sense resistor defines the

maximum primary peak current.

handbook, full pagVewmidatihns

Ci

CVCC

CCTRL

RCTRL

RS

VCC 1

8 DRAIN

GND 2 TEA1506P 7 HVS n.c.

CTRL

TEA1506AP

3

6

DRIVER

DEM

4

5 Isense RSS

RDEM

CSS

Vi

Do

Vo

Np

Ns

Co

power

MOSFET

Rsense Dmicro

VµC

Naux

Cmicro

MICRO-

CONTROLLER

Rreg1

Rreg2

MDB508

2003 Sep 09

Fig.12 Flyback configuration with secondary sensing.

15

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