Overview
The TEA1733BT/N2,118 is a Switched Mode Power Supply (SMPS) controller IC developed by NXP Semiconductors. This GreenChip SMPS control IC is designed for low-cost applications, particularly in flyback topologies. It operates in fixed frequency mode and incorporates several features to enhance efficiency and reliability. The IC is suitable for a wide range of power supply solutions up to 75 watts, making it a versatile component for various electronic devices.
Key Specifications
| Parameter | Conditions | Typical Value | Unit |
|---|---|---|---|
| Input Voltage Range | - | 12 V to 30 V | V |
| Switching Frequency | - | 91.5 kHz | kHz |
| Start-up Voltage | - | 20.6 V | V |
| Undervoltage Lockout Threshold | - | 12.2 V | V |
| Power Rating | - | Up to 75 W | W |
| Operating Temperature Range | - | -40°C to 150°C | °C |
| Package Type | - | 8-SOIC (0.154", 3.90mm Width) | - |
| Fault Protection | - | Current Limiting, Over Power, Over Temperature, Over Voltage | - |
Key Features
- Fixed frequency operation with frequency jitter to reduce ElectroMagnetic Interference (EMI)
- Slope compensation for Continuous Conduction Mode (CCM) operation
- OverPower Protection (OPP) and adjustable OverCurrent Protection (OCP) trip level
- Input UnderVoltage Protection (UVP) and OverVoltage Protection (OVP), output OVP, and OverTemperature Protection (OTP) with minimal external components
- Frequency reduction with fixed minimum peak current to maintain high efficiency at low output power levels
- Adjustable soft start operation
- Two protection inputs for various protection mechanisms
- Low power consumption in Power-down mode (10 μA typical)
Applications
The TEA1733BT/N2,118 is suitable for all applications requiring efficient and cost-effective power supply solutions up to 75 watts. This includes a variety of electronic devices such as consumer electronics, industrial power supplies, and other equipment that require reliable and efficient power management.
Q & A
- What is the primary function of the TEA1733BT/N2,118 IC?
The TEA1733BT/N2,118 is a Switched Mode Power Supply (SMPS) controller IC designed for flyback topologies.
- What is the input voltage range of the TEA1733BT/N2,118?
The input voltage range is from 12 V to 30 V.
- What is the typical switching frequency of the TEA1733BT/N2,118?
The typical switching frequency is 91.5 kHz.
- What types of protection mechanisms are integrated into the TEA1733BT/N2,118?
The IC includes OverPower Protection (OPP), Input UnderVoltage Protection (UVP), OverVoltage Protection (OVP), output OVP, and OverTemperature Protection (OTP).
- How does the TEA1733BT/N2,118 manage efficiency at low output power levels?
The IC reduces frequency with a fixed minimum peak current to maintain high efficiency at low output power levels.
- What is the package type of the TEA1733BT/N2,118?
The package type is 8-SOIC (0.154", 3.90mm Width).
- What is the operating temperature range of the TEA1733BT/N2,118?
The operating temperature range is from -40°C to 150°C.
- How does the TEA1733BT/N2,118 reduce ElectroMagnetic Interference (EMI)?
The IC uses frequency jitter to reduce EMI.
- What is the power consumption in Power-down mode?
The power consumption in Power-down mode is typically 10 μA.
- What are some common applications of the TEA1733BT/N2,118?
Common applications include consumer electronics, industrial power supplies, and other equipment requiring efficient power management up to 75 watts.
