Features; Applications; Distinctive Features; Green Features - TCL SY33 Service Manual

2ÿ TEA1506
GreenChip™II SMPS control IC

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.
2003 Sep 09
TEA1506P; TEA1506AP;
TEA1506T; TEA1506AT

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.
1
2
TEA1506AP
3
4
Fig.1 Basic application diagram.
2
8
7
TEA1506P
6
5
MDB504