TEA19361T is a member of the GreenChip series controller IC used for switching power supplies. It is designed to be used independently or in conjunction with USB PD or smart charging controllers (such as the TEA190x series) to use a flyback topology on the secondary end. The built-in green energy-saving feature enables the system to operate efficiently at various power levels.
TEA19361T is compatible with multiple output voltage applications, providing a wide output voltage range of 5 V to 20 V in constant voltage (CV) mode. When used with secondary controller ICs such as the TEA190x series, it supports constant current (CC) mode with output voltages as low as 3V.
At high power levels, the flyback converter operates in quasi resonant (QR) mode. At lower power levels, the controller switches to frequency down (FR) during discontinuous conduction mode (DCM) operation. The peak current is limited to the minimum level. The valley switch is used for all working modes.
At very low power levels, the controller uses burst mode to regulate the output power. The integration of special optocoupler current reduction regulation reduces the average optocoupler current of all modes to the lowest level. This reduction ensures low power consumption, high efficiency, and excellent no-load power performance. Due to the fact that the switching frequency of this mode is never less than fsw (min) and the burst repetition rate can be adjusted to a low value, it can minimize the noise that can be recognized by the human ear to the greatest extent possible. During the non switching phase of the sudden working mode, the internal IC power supply current will decrease to the minimum value to further optimize efficiency.
TEA19361T includes a series of secure restart protections. One of these protections is precise over power protection (OPP). If the output is short circuited, the system will stop switching and restart. Then limit the output power to a lower level.
TEA19361T is manufactured using high-voltage silicon on insulator (SOI) technology. SOI technology combines the advantages of low-voltage technology (precision, high-speed protection, functionality, and control). However, it also maintains high voltage capability (high voltage start-up, low standby power consumption, and power on/off inductance measurement at the input).
TEA19361T uses the minimum number of external components to achieve low-cost, efficient, and reliable power supply, meeting power requirements of up to 75 W.
GreenChip SMPS primary side control IC with QR/DCM operation,
TEA19361T NXP,
features
SMPS controller IC supports intelligent charging applications and multi output voltage applications
Wide output range (CV mode from 5 V to 20 V, CC mode from 3 V to 20 V, direct charging mode from 3 V to 6 V)
Adopting a small SO10 package
Suitable for mobile charger applications that require low common mode noise (CMN) distortion (compliant with IEC EN62684 specification)
Adaptive dual power supply achieves maximum efficiency across the entire output voltage range
Integrated high-voltage starting source
It has continuous VCC regulation capability during startup and provides protection through high-voltage pins, allowing the use of the minimum VCC capacitance value
Reduced photocurrent achieves low no-load power (20 mW at 5 V output)
Fast transient response from 0 to full load
Minimum human ear recognizable noise and output voltage ripple in all operating modes
Integrated soft start
Low power supply current during normal operation (0.6 mA under no-load)
Low power supply current (0.2 mA) during non switching phase in hiccup mode
Bottom switch can minimize switch losses to the greatest extent possible
Maintain a fixed minimum peak current during frequency reduction to maintain high efficiency at low output power
Overpower protection (OPP) compensation for mains voltage
Over temperature protection (OTP)
Integrated over power timeout function
Integrated restart timer for system failure conditions
Ensure continuous protection mode through demagnetization detection
Accurate Overvoltage Protection (OVP)
Universal secure restart protection input; Used for system over temperature protection (OTP)
The longest protection for the drive
Power on/off protection
Battery chargers for smartphones and media tablets
Battery charger for mobile devices with touchpad display screen
