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PDF TEA2262 Data sheet ( Hoja de datos )
| Número de pieza | TEA2262 | |
| Descripción | SWITCH MODE POWER SUPPLY CONTROLLER | |
| Fabricantes | ST Microelectronics | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de TEA2262 (archivo pdf) en la parte inferior de esta página. Total 9 Páginas | ||
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TEA2262
SWITCH MODE POWER SUPPLY CONTROLLER
. POSITIVE AND NEGATIVE OUTPUT CUR-
RENT UP TO 1A
. LOW START-UP CURRENT
. DIRECT DRIVE OF THE MOS POWER
TRANSISTOR
. TWO LEVELS TRANSISTOR CURRENT LIMI-
TATION
. DOUBLE PULSE SUPPRESSION
. SOFT-STARTING
. UNDER AND OVERVOLTAGE LOCK-OUT
. AUTOMATIC STAND-BY MODE
. LARGE POWER RANGE CAPABILITY IN
STAND-BY (Burst mode)
. INTERNAL PWM SIGNAL GENERATOR
DESCRIPTION
The TEA2262 is a monolithic integrated circuit for
the use in primary part of an off-line switching mode
power supply using a MOS power transistor.
All functions required for SMPS control under nor-
mal operating,transient or abnormal conditions are
provided.
The capability of working according to the ”master-
slave” concept, or according to the ”primary regu-
lation” mode makes the TEA2262 very flexible and
easy to use. This is particularly true for TV receiv-
ers wherethe IC provides an attractive and low cost
solution (no need of stand-by auxiliary power sup-
ply).
PIN CONNECTIONS
TRANSFORMER DEMAGNETIZATION
SENSING INPUT
SECONDARY PULSES INPUT
POWER TRANSISTOR
CURRENT LIMITATION INPUT
GROUND
IS
IN
I max.
GND
GROUND GND
ERROR AMPLIFIER INPUT (INVERTING)
E
ERROR AMPLIFIER OUTPUT
S
OVERLOAD INTEGRATION CAPACITOR C2
1
2
3
4
5
6
7
8
DIP16
(Plastic Package)
ORDER CODE : TEA2262
16 VCC POWER SUPPLY
15 V POSITIVE OUTPUT STAGE SUPPLY
14 OUT POWER OUTPUT
13 GND GROUND
12 GND GROUND
11 R0 OSCILLATOR RESISTOR
10 C0 OSCILLATOR CAPACITOR
9 C1 SOFT-START CAPACITOR
April 1996
1/9
1 page  
SIMPLIFIED APPLICATION DIAGRAMS
Figure 1 : Master-slave Concept
MAINS
INPUT
R
P2
C
V CC
TEA2262
SL AVE
P 1 : Output voltage adjusteme nt in normal mode
P 2 : Output voltage adjustement in stand- by
Figure 2 : Secondary Regulation (with optocoupler)
MAINS
INPUT
R
C
VCC
TEA2262
P : Output voltage adjustement
TEA2262
AUDIO
OUTPUT
STAGE
Muting
Control
P1
Synchronization
SCANNING
DEVICE
Remote
Stand- by
TEA5170
MAS TER
PWM
VOLTAGE
REGULATOR
Remote
Stand-by
µP
VCC
INFRA-RED
RECEIVER
Power primary ground
Secondary ground (isolated from mains)
AUDIO
OUTPUT
STAGE
Muting
Control
P Remote
SCANNING
Stand- by
DEVICE
VOLTAGE
REGULATOR
µP
VCC
INFRA-RED
RECEIVER
Power primary ground
Secondary ground (isolated from mains)
5/9
5 Page | ||
| Páginas | Total 9 Páginas | |
| PDF Descargar | [ Datasheet TEA2262.PDF ] | |
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