New & Original Integrated Circuit Chip Plastic GreenChip SMPS control IC TEA1506T

GreenChip^TMII SMPS control IC

TEA1506P; TEA1506AP; 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^TMII control ICs, the TEA1506 has no internal high voltage start-up source and needs to be started by means of an external bleeder resistor.

GENERAL DESCRIPTION

The GreenChip^TM(1)II is the second generation of green Switched Mode Power Supply (SMPS) control ICs. A high level of integration leads to a cost effective power supply with a low number of external components.

The special built-in green functions allow the efficiency to be optimum at all power levels. This holds for quasi-resonant operation at high power levels, as well as fixed frequency operation with valley switching at medium power levels. At low power (standby) levels, the system operates at a reduced frequency and with valley detection.

Highly efficient and reliable supplies can easily be designed using the GreenChip^TMII control IC.

(1) GreenChip is a trademark of Koninklijke Philips Electronics N.V.

ORDERING INFORMATION

BLOCK DIAGRAM