TEA1506T中文资料GreenChip (tm) II SMPS control IC数据手册恩XP规格书

描述 Description

The GreenChipTM 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
GreenChipTMII control IC.

特性 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.

应用 Application

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