PRIMARY CIRCUIT. TEA2028B Datasheet

TEA2028B CIRCUIT. Datasheet pdf. Equivalent

Part TEA2028B
Description SWITCH MODE POWER SUPPLY PRIMARY CIRCUIT
Feature TEA2028B COLOR TV SCANNING AND POWER SUPPLY PROCESSOR SMPS CONTROL ERROR AMPLIFIER AND PHASE MODULA.
Manufacture ST Microelectronics
Datasheet
Download TEA2028B Datasheet

TEA2028B COLOR TV SCANNING AND POWER SUPPLY PROCESSOR SMPS TEA2028B Datasheet
Recommendation Recommendation Datasheet TEA2028B Datasheet




TEA2028B
TEA2028B
COLOR TV SCANNING AND POWER SUPPLY PROCESSOR
DEFLECTION
. CERAMIC 500kHz RESONATOR FRE-
QUENCY REFERENCE
. NO LINE AND FRAME OSCILLATOR AD-
JUSTMENT REFERENCE
. DUAL PLL FOR LINE DEFLECTION
. HIGH PERFORMANCE SYNCHRONIZATION
. SUPER SANDCASTLE OUTPUT
. FRAME BLANKING WITH SAFETY CIRCUIT
. VIDEO IDENTIFICATION CIRCUIT
. AUTOMATIC 50/60Hz STANDARD IDENTIFI-
CATION
. EXCELLENT INTERLACING CONTROL
. SPECIAL PATENTED FRAME SYNCHRO DE-
VICE FOR VCR OPERATION
. FRAME SAW-TOOTH GENERATOR
SMPS CONTROL
. ERROR AMPLIFIER AND PHASE MODULA-
TOR
. SYNCHRONIZATION WITH HORIZONTAL
DEFLECTION
. SECURITY CIRCUIT AND START-UP PROC-
ESSOR
. OUTPUT PULSES ARE SENT TO THE PRI-
MARY SMPS IC TEA2261 THROUGH A LOW
COST SYNCHRO PULSE TRANSFORMER
PIN CONNECTIONS
DESCRIPTION
The TEA2028B is a complete (horizontal and ver-
tical) deflection processor with secondary to pri-
mary SMPS control for color TV sets.
DIP28
(Plastic Package)
ORDER CODE : TEA2028B
LINE MONOSTABLE CAPACITOR
SAFETY FRAME BLANKING INPUT
FRAME SAW-TOOTH OUTPUT
FRAME BLANKING OUTPUT
FRAME RAMP GENERATOR
GROUND POWER
SWITCH MODE POWER SUPPLY OUTPUT
V CC
S.M.P.S. INPUT REGULATION
HORIZONTAL OUTPUT
S. SANDCASTLE OUTPUT
HORIZONT AL FLYBACK INPUT
HORIZO NTAL SAW-TOOTH
CURRENT REFERENCE
1
2
3
4
5
6
7
8
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10
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12
13
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28 SAFETY INPUT
27 VIDEO INPUT
26 H. SYNCHRO CAPACITOR (tip level)
25 VIDEO IDENTIFICATION CAPACITOR
24 MUTING + 50/60Hz IDENT. OUTPUT
23 V.C.R. INPUT
www.DataSheet4U.com22 PHASE COMPARATOR Φ1 CAPACITOR
21 GROUND SUBSTRAT
20 FRAME SYNCHRO ADJ USTMENT CAPACITOR
19 V.C.O. INPUT
18 V.C.O. OUTPUT
17 V.C.O. 90° REF.
16 PHASE COMPARATOR Φ2 CAPACITOR
15 STARTING AND SAFETY CAPACITOR
August 1993
www.DataSheet4U.com
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TEA2028B
TEA2028B
BLOCK DIAGRAM
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