TEA2262 데이터 시트보기 (PDF) - STMicroelectronics
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TEA2262 Datasheet PDF : 9 Pages
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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
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
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
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