Overview
The TEA18363T is a controller IC designed for low-cost Switched Mode Power Supplies (SMPS), specifically intended for flyback topologies. Manufactured by NXP USA Inc., this GreenChip SMPS control IC is optimized for high efficiency across all power levels. It incorporates advanced features such as valley switching, frequency reduction, and burst mode operation to minimize power consumption and ensure high efficiency, even at low power levels.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Supply Voltage Range | Up to 30 V | V | |||
| Start-up Current Source (HV pin) | VHV > 10 V | 0.8 | 1.1 | mA | |
| Thermal Resistance (junction to ambient) | In free air; JEDEC test board | 91 | K/W | ||
| Thermal Resistance (junction to case) | In free air; JEDEC test board | 37.8 | K/W | ||
| Maximum Output Power | Up to 75 W | W | |||
| Package Type | SO8 (plastic small outline package; 8 leads; body width 3.9 mm) |
Key Features
- SMPS controller IC for low-cost applications
- Integrated high-voltage start-up and continuous VCC regulation during start-up and protection via the HV pin
- Reduced opto current in burst mode for low no-load power consumption
- Operating frequencies in all operating modes are outside the audible range
- Integrated X-capacitor discharge function (NXP patented)
- Adjustable soft start
- Valley switching for minimum switching losses
- Frequency reduction with fixed minimum peak current to maintain high efficiency at low output power levels
- Mains voltage independent OverPower Protection (OPP), OverTemperature Protection (OTP), and other protection features
Applications
The TEA18363T is suitable for applications requiring efficient and cost-effective power supply solutions up to 75 W. This includes a variety of consumer and industrial electronics that need reliable, high-efficiency power management. Examples include power adapters, set-top boxes, and other low to medium power electronic devices.
Q & A
- What is the primary application of the TEA18363T IC?
The TEA18363T is primarily used in low-cost Switched Mode Power Supplies (SMPS) for flyback topologies. - What is the maximum supply voltage range for the TEA18363T?
The maximum supply voltage range is up to 30 V. - What is the maximum output power supported by the TEA18363T?
The TEA18363T supports output power up to 75 W. - What are the key protection features of the TEA18363T?
The IC includes OverPower Protection (OPP), OverTemperature Protection (OTP), and other protection features such as continuous mode protection using demagnetization detection and accurate OverVoltage Protection (OVP). - How does the TEA18363T optimize efficiency at low power levels?
The IC optimizes efficiency at low power levels by switching to burst mode, reducing opto current, and using valley switching to minimize switching losses. - What is the thermal resistance of the TEA18363T from junction to ambient?
The thermal resistance from junction to ambient is typically 91 K/W. - What package type is the TEA18363T available in?
The TEA18363T is available in an SO8 package (plastic small outline package; 8 leads; body width 3.9 mm). - Does the TEA18363T have integrated X-capacitor discharge functionality?
Yes, the TEA18363T has an integrated X-capacitor discharge function, which is patented by NXP. - How does the TEA18363T handle overpower situations?
The TEA18363T includes mains voltage independent OverPower Protection (OPP) that limits the output power to a lower level in case of an overpower situation. - What is the typical supply current during normal operation and in burst mode?
The typical supply current during normal operation is 0.6 mA, and during the non-switching state in burst mode, it is 0.2 mA.
