SMPS ICs for low-power systems

 

 

General description

The TEA152x family STARplug is a Switched Mode Power Supply (SMPS) controller IC

that operates directly from the recti?ed universal mains. It is implemented i the

high-voltage EZ-HV SOI process, combined with a low-voltage BiCMOS process. The

device includes a high-voltage power switch and a circuit for start-up directly from the

recti?ed mains voltage.

A dedicated circuit for valley switching is built in, which makes a very ef?cient slim-line

electronic power plug concept possible.

I its most basic versio of application, the TEA152x family acts as a voltage source.

Here, no additional secondary electronics are required. A combined voltage and current

source ca be realized with minimum costs for external components. Implementatio of

the TEA152x family renders a ef?cient and low cost power supply system.

 

 

 

2. Features

 Designed for general purpose supplies up to 30 W

 Integrated power switch:

u TEA1520x: 48 ?; 650 V

u TEA1521x: 24 ?; 650 V

u TEA1522x: 12 ?; 650 V

u TEA1523P: 6.5 ?; 650 V

 Operates from universal AC mains supplies (80 V to 276 V)

 Adjustable frequency for ?exible design

 RC oscillator for load insensitive regulatio loop constant

 Valley switching for minimum switch-o loss

 Frequency reductio at low power output makes low standby power possible

(< 100 mW)

 Adjustable overcurrent protection

 Undervoltage protection

 Temperature protection

 Short-circuit winding protection

 Simple applicatio with both primary and secondary (opto) feedback

 Available i DIP8 and SO14 packages

 

 

 

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