SUPPLY CONTROLLER. TEA2261 Datasheet

TEA2261 CONTROLLER. Datasheet pdf. Equivalent

Part TEA2261
Description SWITCH MODE POWER SUPPLY CONTROLLER
Feature TEA2260 TEA2261 SWITCH MODE POWER SUPPLY CONTROLLER . . . . . . . . . . POSITIVE AND NEGATIVE CURR.
Manufacture ST Microelectronics
Datasheet
Download TEA2261 Datasheet

TEA2260 TEA2261 SWITCH MODE POWER SUPPLY CONTROLLER . . . . TEA2261 Datasheet
Recommendation Recommendation Datasheet TEA2261 Datasheet




TEA2261
TEA2260
TEA2261
SWITCH MODE POWER SUPPLY CONTROLLER
. POSITIVE AND NEGATIVE CURRENT UP TO
1.2A and – 2A
. LOW START-UP CURRENT
. DIRECT DRIVE OF THE POWER TRANSIS-
TOR
. TWO LEVELS TRANSISTOR CURRENT LIMI-
TATION
. DOUBLE PULSE SUPPRESSION
. SOFT-STARTING
. UNDER AND OVERVOLTAGE LOCK-OUT
. AUTOMATIC STAND-BY MODE RECOGNI-
TION
. LARGE POWER RANGE CAPABILITY IN
STAND-BY (Burst mode)
. INTERNAL PWM SIGNAL GENERATOR
DESCRIPTION
The TEA2260/61 is a monolithic integrated circuit
for the use in primary part of an off-line switching
mode power supply.
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 TEA2260/61 very flexible
and easy to use. This is particularly true for TV
receivers where the IC provides an attractive and
low cost solution (no need of stand-by auxiliary
power supply). See application note AN376/0490
for detailed information.
PIN CONNECTIONS
BATWING DIP 16
(Plastic Package)
ORDER CODES : TEA2260 - TEA2261
TRANSFORMER DEMAGNETIZATION SENSING INPUT IS
SECONDARY PULSES INPUT IN
POWER TRANSISTOR CURRENT LIMITATION INPUT IMAX
GROUND GND
GROUND GND
ERROR AMPLIFIER INPUT (INVERTING)
E
ERROR AMPLIFIER OUTPUT
S
OVERLOAD INTEGRATION CAPACITOR C2
1
2
3
4
5
6
7
8
16 VCC POWER SUPPLY
15 V+ POSITIVE OUTPUT STAGE SUPPLY
14 OUT POWER OUTPUT
13 GND GROUND
12 GND GROUND
11 R0 OSCILLATOT RESISTOR
10 C0 OSCILLATOR CAPACITOR
9 C1 SOFT-START CAPACITOR
June 1992
1/9



TEA2261
TEA2260 - TEA2261
SIMPLIFIED APPLICATION DIAGRAMS
Figure 1 : Master-slave Concept
MAINS
INPUT
R
P2
C
VCC
TEA2260/61
SLAVE
P1 : Output voltage adjustement in normal mode
P2 : Output voltage adjustement in stand-by
Figure 2 : Secondary Regulation (with optocoupler)
MAINS
INPUT
R
C
VCC
TEA2260/61
P : Output voltage adjustement
2/9
AUDIO
OUTPUT
STAGE
Muting
Control
P1 Synchronization SCANNING
DEVICE
Remote
Stand-by
TEA5170
MASTER
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)





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