TEA173X: Low Voltage Start-up Flyback Controllers Suitable for Fixed Frequency/CCM

Overview

This compact yet highly featured SMPS controller delivers good efficiency over the total load range and includes Over-Power compensation.

	TEA1733	TEA1738
Improved efficiency at low load		√
OVP via VCC		√
Adjustable OVP via PROTECT	√	√
Accurate, adjustable OVP via ISENSE
Overpower time-out	Adjustable	Adjustable
Frequency increase at peak power		√
Brown-in/brown-out protection	√	√
Package	SO8	SO8

Features

Large input voltage range (12 to 30 V)
High integration and small TSOP6 package
Enables no-load power consumption levels below 100 mW
6-pin controller with high/low input voltage compensation and maximum duty cycle protection
Very low supply currents during start-up and normal operation

Target Applications

Adapters for notebooks, netbooks, tablets, printers
Power supplies for LCD monitors, set-top boxes (STB), Blu-ray and DVD players

Features

Large input voltage range (12 to 30 V)
High integration and small TSOP6 package
Enables no-load power consumption levels below 100 mW
6-pin controller with high/low input voltage compensation and maximum duty cycle protection
Very low supply currents during start-up and normal operation

Target Applications

Adapters for notebooks, netbooks, tablets, printers
Power supplies for LCD monitors, set-top boxes (STB), Blu-ray and DVD players

Application Notes

TEA1733LT Block Diagram

TEA1733LT Block Diagram

TEA1733LT Block Diagram

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