TEA1532

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TEA1532 数据手册

TEA1532

GreenChip II SMPS control IC

Rev. 01 — 28 May 2004

Preliminary data sheet

1. General description

The GreenChip™II is the second generation of green Switched Mode Power Supply

(SMPS) controller ICs. Its high level of integration allows the design of a cost effective

power supply with a very low number of external components.

The TEA1532 can also be used in ﬁxed frequency, Continuous Conduction Mode (CCM)

converter designs for low voltage, high current applications. At low power (standby) levels,

the system operates in cycle skipping mode which minimizes the switching losses during

standby.

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 in cycle skipping mode with valley detection.

The proprietary high voltage BCD800 process makes direct start-up possible from the

rectiﬁed universal mains voltage in an effective and green way. A second low voltage

BICMOS IC is used for accurate, high speed protection functions and control.

The TEA1532 enables highly efﬁcient and reliable supplies to be designed easily.

2. Features

2.1 Distinctive features

■ Universal mains supply operation (70 V to 276 V AC)

■ High level of integration, resulting in a very low external component count

■ Fixed frequency Continuous Conduction Mode (CCM) operation capability

■ Quasi-Resonant (QR) Discontinuous Conduction Mode (DCM) operation capability.

2.2 Green features

■ Valley or zero voltage switching for minimum switching losses in QR operation

■ Cycle skipping mode at very low loads; input power <300 mW at no-load operation for

a typical adapter application

■ On-chip start-up current source.

2.3 Protection features

■ Safe restart mode for system fault conditions

■ Zero current switch-on in QR mode

■ Undervoltage protection (foldback during overload)

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型号	品牌	获取价格	描述	数据表
TEA1532AP	NXP	获取价格	暂无描述
TEA1532AT	NXP	获取价格	IC 2 A SWITCHING CONTROLLER, 75 kHz SWITCHING FREQ-MAX, PDSO8, 3.90 MM, PLASTIC, SO-8, Swi
TEA1532AT/N1/DG,11	NXP	获取价格	HV start-up flyback controller suitable for fixed frequency/CCM as well as DCM/QR mode SOI
TEA1532BT	NXP	获取价格	GreenChip II SMPS control IC
TEA1532BT/N1	NXP	获取价格	TEA1532BT/N1
TEA1532BT/N1,118	NXP	获取价格	TEA1532BT - GreenChip™II SMPS control IC
TEA1532CT	NXP	获取价格	GreenChip II SMPS control IC
TEA1532CT/N1,118	NXP	获取价格	HV start-up flyback controller suitable for fixed frequency/CCM as well as DCM/QR mode SOI
TEA1532P	NXP	获取价格	GreenChip SMPS control IC
TEA1532P/N1,112	NXP	获取价格	TEA1532P - GreenChip™II SMPS control IC DIP