2003 Sep 09
2
GreenChip
II SMPS control IC
TEA1506
TEA1506T; TEA1506AT
FEATURES
Distinctive features
•
Universal mains supply operation (70 to 276 V AC)
•
High level of integration; giving a low external
component count.
Green features
•
Valley or zero voltage switching for minimum switching
losses
•
Efficient quasi-resonant operation at high power levels
•
Frequency reduction at low power standby for improved
system efficiency (
≤
3 W)
•
Cycle skipping mode at very low loads.
Protection features
•
Safe restart mode for system fault conditions
•
Continuous mode protection by means of
demagnetization detection (zero switch-on current)
•
Accurate and adjustable overvoltage protection (latched
in TEA1506; safe restart in TEA1506A)
•
Short winding protection
•
Undervoltage protection (foldback during overload)
•
Overtemperature protection
•
Low and adjustable overcurrent protection trip level
•
Soft (re)start.
APPLICATIONS
Besides typical application areas, i.e. TV and monitor
supplies, the device can be used in adapters and chargers
and all applications that demand an efficient and
cost-effective solution up to 150 W. Unlike the other
GreenChip
II control ICs, the TEA1506 has no internal
high voltage start-up source and needs to be started by
means of an external bleeder resistor.
MDB504
TEA1506P
TEA1506AP
1
2
3
4
8
7
6
5
Fig.1 Basic application diagram.
TEA1506P; TEA1506AP;
2ÿ
Содержание SY33
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