NXP TEA1521T

Description

The TEA152x family STARplug is a Switched Mode Power Supply (SMPS) controller IC that operates directly from the rectified universal mains. It is implemented in the high-voltage EZ-HV SOI process, combined with a low-voltage Bipolar Complementary Metal-Oxide Semiconductor (BiCMOS) process. The device includes a high-voltage power switch and a circuit for start-up directly from the rectified mains voltage.

A dedicated circuit for valley switching is built in, which makes a very efficient slim-line electronic power-plug concept possible.

In its most basic version of application, the TEA152x family acts as a voltage source. Here, no additional secondary electronics are required. A combined voltage and current source can be realized with minimum costs for external components. Implementation of the TEA152x family renders an efficient and low cost power supply system.

Features

• Designed for general purpose supplies up to 30 W

  -Integrated power switch:

  -TEA1520x: 48 Ω; 650 V

  -TEA1521x: 24 Ω; 650 V

  -TEA1522x: 12 Ω; 650 V

  -TEA1523P: 6.5 Ω; 650 V

• Operates from universal AC mains supplies (80 V to 276 V)
• Adjustable frequency for flexible design
• RC oscillator for load insensitive regulation loop constant
• Valley switching for minimum switch-on loss
• Frequency reduction at low power output makes low standby power possible -(< 100 mW)
• Adjustable overcurrent protection
• Undervoltage protection
• Temperature protection
• Short-circuit winding protection
• Simple application with both primary and secondary (opto) feedback
• Available in DIP8 and SO14 packages

Typical applications

• TV and monitor standby supplies
• Adapters
• CD(R)
• PC peripherals
• Microcontroller supplies in home applications and small portable equipment, etc.
• Chargers
• DVD
• Set Top Box (STB)

More information

• Datasheet
• IC product information