1. General description
The GreenChip III is the third generation of green Switched Mode Power Supply (SMPS)
controller ICs. The TEA1751(L)T (TEA1751T and TEA1751LT) combines a controller for
Power Factor Correction (PFC) and a flyback controller. Its high level of integration allows
the design of a cost-effective power supply with a very low number of external
components.
The special built-in green functions provide high efficiency at all power levels. This applies
to quasi-resonant operation at high power levels, quasi-resonant operation with valley
skipping, as well as to reduced frequency operation at lower power levels. At low power
levels, the PFC switches off to maintain high efficiency.
During low power conditions, the flyback controller switches to frequency reduction mode
and limits the peak current to 25 % of its maximum value. This will ensure high efficiency
at low power and good standby power performance while minimizing audible noise from
the transformer.
The TEA1751(L)T is a MultiChip Module, (MCM), containing two chips. The proprietary
high voltage BCD800 process which makes direct start-up possible from the rectified
universal mains voltage in an effective and green way. The second low voltage SIlicon On
Insulator (SIOI) is used for accurate, high speed protection functions and control.
The TEA1751(L)T enables highly efficient and reliable supplies with power requirements
up to 250 W, to be designed easily and with a minimum number of external components.
2. Features
2.1 Distinctive features
Integrated PFC and flyback controller.
Universal mains supply operation (70 V (AC) to 276 V (AC)).
Dual boost PFC with accurate maximum output voltage (NXP patented).
High level of integration, resulting in a very low external component count and a
cost-effective design.
2.2 Green features
On-chip start-up current source.
TEA1751T; TEA1751LT
GreenChip III SMPS control IC
Rev. 02 23 December 2009
Product data sheet
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相关代理商/技术参数
TEA1751T/N1518
制造商:NXP Semiconductors 功能描述:IC SMPS SOIC-16
TEA1752LT
制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:GreenChip III SMPS control IC
TEA1752LT/N1,518
功能描述:DC/DC 开关控制器 IC CTLR SMPS SW MODE
RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK
TEA1752LT/N1/S1518
制造商:NXP 功能描述: 制造商:NXP Semiconductors 功能描述:
TEA1752T
制造商:未知厂家 制造商全称:未知厂家 功能描述:The TEA1752T and TEA1752LT combine a controller for Power Factor Correction (PFC) and a flyback controller.
TEA1752T/1791/DB/90W,598
制造商:NXP Semiconductors 功能描述:- Boxed Product (Development Kits) 制造商:NXP Semiconductors 功能描述:90W notebook adapter Ref
TEA1752T/N1,518
功能描述:DC/DC 开关控制器 IC CTLR SMPS SW MODE RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK
TEA1753
制造商:未知厂家 制造商全称:未知厂家 功能描述:The GreenChip III is the third generation of green Switched Mode Power Supply (SMPS) controller ICs.