TEA2260 Просмотр технического описания (PDF) - STMicroelectronics
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TEA2260 Datasheet PDF : 11 Pages
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TEA2261/0
SWITCH MODE POWER SUPPLY CONTROLLER
s Positive and Negative Current up to 1.2A and -
2A
s Low Start-Up Current
s Direct Drive of the Power Transistor
s Two Levels Transistor Current Limitation
s Double Pulse Suppression
s Soft-Starting
s Under and Overvoltage Lock-out
s Automatic Stand-By Mode Recognition
s Large Power Range Capability in Stand-By
(Burst Mode)
s 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 “mas-
ter-slave” concept, or according to the “primary
regulation” 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 auxilia-
ry power supply). See application note AN376/
0490 for detailed information.
Figure 1. Pin Connections
TRANSFORMER DEMAGNETIZATION SENSING INPUT IS
1
SECONDARY PULSES INPUT IN
2
POWER TRANSISTOR CURRENT LIMITATION INPUT IMAX
3
GROUND GND
4
GROUND GND
5
ERROR AMPLIFIER INPUT (INVERTING)
E
6
ERROR AMPLIFIER OUTPUT
S
7
OVERLOAD INTEGRATION CAPACITOR C2
8
BATWING DIP16
(Plastic Package)
ORDER CODES:
TEA2261/0
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
October 2003
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