Overview
The UBA2021T/N2,518 is a high-voltage integrated circuit (IC) designed by NXP Semiconductors to drive and control Compact Fluorescent Lamps (CFL) and fluorescent TL lamps. This IC is part of NXP's extensive portfolio of lighting and ballast controllers, known for their robust performance and comprehensive feature set. The UBA2021T/N2,518 integrates a driver circuit for an external half-bridge, an oscillator, and a control circuit for the entire lamp operation cycle, including start-up, preheating, ignition, and steady-state operation, along with various protection mechanisms.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| High Voltage Supply (VFS) | t < 0.5 s | - | - | 630 | V |
| Oscillator Start Voltage (VVS(start)) | - | - | 11.95 | V | |
| Oscillator Stop Voltage (VVS(stop)) | - | 10.15 | - | V | |
| Standby Current (IVS(standby)) | VVS = 11 V | - | 200 | µA | |
| Start Frequency (fstart) | - | - | 108 | kHz | |
| Preheat Time (tph) | CCP = 100 nF | - | 666 | ms | |
| Operating Temperature (Tamb) | - | -40 | 150 | °C | |
| Junction Temperature (Tj) | - | -40 | 150 | °C | |
| Package/Case | - | - | 14-SOIC (0.154, 3.90mm Width) | - |
Key Features
- Adjustable preheat and ignition time
- Adjustable preheat current
- Adjustable lamp power independent from mains voltage variations
- Overpower protection
- Lamp temperature stress protection at higher mains voltages
- Capacitive mode protection
- Protection against a drive voltage that is too low for the power MOSFETs
- Level shift and drive functions for external half-bridge power MOSFETs
Applications
The UBA2021T/N2,518 is primarily used in the control and driving of Compact Fluorescent Lamps (CFL) and fluorescent TL lamps. It is suitable for various lighting applications, including residential, commercial, and industrial lighting systems. The IC's robust design and comprehensive protection features make it ideal for use in environments where reliability and efficiency are critical.
Q & A
- What is the primary function of the UBA2021T/N2,518 IC?
The UBA2021T/N2,518 is designed to drive and control Compact Fluorescent Lamps (CFL) and fluorescent TL lamps, managing the entire lamp operation cycle including start-up, preheating, ignition, and steady-state operation.
- What is the maximum high voltage supply for the UBA2021T/N2,518?
The maximum high voltage supply (VFS) for the UBA2021T/N2,518 is 630 V.
- What are the operating temperature ranges for the UBA2021T/N2,518?
The operating temperature range for the UBA2021T/N2,518 is from -40°C to 150°C, and the junction temperature range is also from -40°C to 150°C.
- Does the UBA2021T/N2,518 support adjustable preheat and ignition times?
Yes, the UBA2021T/N2,518 allows for adjustable preheat and ignition times.
- What type of package does the UBA2021T/N2,518 come in?
The UBA2021T/N2,518 comes in a 14-SOIC package.[
- Is the UBA2021T/N2,518 RoHS compliant?
Yes, the UBA2021T/N2,518 is RoHS compliant.
- What are some of the protection features of the UBA2021T/N2,518?
The IC includes overpower protection, lamp temperature stress protection, capacitive mode protection, and protection against low drive voltage for the power MOSFETs.[
- Can the lamp power be adjusted independently of mains voltage variations?
Yes, the UBA2021T/N2,518 allows for adjustable lamp power that is independent from mains voltage variations.[
- What is the frequency range of the oscillator in the UBA2021T/N2,518?
The oscillator frequency range is from 41.21 kHz to 44.59 kHz.[
- Is the UBA2021T/N2,518 suitable for industrial lighting applications?
Yes, the UBA2021T/N2,518 is suitable for industrial lighting applications due to its robust design and comprehensive protection features.[
