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NXP Semiconductors UBA2211BP/N1,112
- Part No.:
- UBA2211BP/N1,112
- Manufacturer:
- NXP Semiconductors
- Category:
- Lighting, Ballast Controllers
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
UBA2211BP/N1,112.pdf
- Description:
- IC CFL/TL DRIVER 42.68KHZ 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:4,442
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Product details
Overview
UBA2211BP/N1,112 from NXP Semiconductors is a high-voltage monolithic half-bridge power IC designed specifically for driving Compact Fluorescent Lamps (CFLs) in 220 V mains applications. It integrates high-side and low-side power transistors (9 Ω on-resistance), bootstrap diode, and high-voltage supply circuitry, enabling direct lamp ignition and RMS current-controlled steady-state operation up to 25 W.
For engineers reviewing the UBA2211BP/N1,112 datasheet, UBA2211BP/N1,112 pinout, UBA2211BP/N1,112 application, or UBA2211BP/N1,112 equivalent, this device delivers verified preheat time control, saturation current protection, capacitive mode protection, and adjustable oscillator frequency - all critical for reliable CFL burner integration across indoor/outdoor lighting systems.
Technical Context
The UBA2211BP/N1,112 implements a self-oscillating 555-timer-based controller with internal divider for precise 50% duty cycle generation. Its half-bridge frequency is set by external Rosc and Cosc components, while preheat and ignition states use dedicated internal voltage references (Vref(ph) = 620 mV, VO(ref)RMS = 285 mV typical) to regulate filament current and lamp RMS current respectively.
It features integrated safety mechanisms including Saturation Current Protection (SCP), OverTemperature Protection (OTP) with 175 °C activation threshold, Capacitive Mode Protection (CMP), and system shutdown on ignition failure. The DIP8 package requires external DVDT supply diodes, unlike the SO14 variant which integrates them.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | VHV up to 373 V operating; supports 220 V mains with transient tolerance to 550 V |
| Half-Bridge Output Current | ±1.35 A peak - enables driving CFL burners up to 25 W with 9 Ω integrated MOSFET on-resistance |
| Oscillator Frequency | Nominal 41.32 kHz (Rosc = 100 kΩ, Cosc = 220 pF); max 104 kHz for ignition sweep |
| Preheat Reference Voltage | 620 mV - sets peak preheat current via RSENSE; ensures controlled electrode heating |
| RMS Control Reference | 285 mV typical - maintains constant lamp current independent of mains voltage variation |
| Thermal Protection | OTP activates at 175 °C junction temperature; releases at ≤100 °C - prevents thermal runaway during overload |
| Non-Overlap Time | 1.35 µs typical - eliminates shoot-through risk between high-side and low-side switching |
Pinout & Package
DIP8 plastic dual in-line package (SOT97-1), 300 mil width, 8-pin through-hole mounting with 2.54 mm pitch. Requires external DVDT supply diodes (not bonded out).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SW | Sweep timing & VCO input | Controls oscillator frequency during preheat/ignition; connects to external CSW capacitor |
| SGND | Signal ground reference | Common return for control circuitry; separate from PGND and HV return paths |
| FS | High-side floating supply output | Drives bootstrap capacitor for high-side gate drive; monitored for UVLO (4.2 V typical) |
| SENSE | Voltage sense node | Measures RSENSE voltage for preheat peak current and RMS current regulation |
| OUT | Half-bridge output | Connects directly to lamp inductor; delivers switched AC to CFL resonant tank |
| HV | High-voltage supply input | Accepts rectified mains; powers internal JFET start-up current source and DVDT charge pump |
| VDD | Internal low-voltage supply | Regulated 13.8 V output; powers logic and drivers; starts at 11.7 V, stops at 8.5 V |
| RC | Oscillator timing input | Input to internal comparator; sets nominal frequency with Rosc/Cosc network |
Key Features
| Feature | Design Value |
|---|---|
| Integrated half-bridge transistors | Eliminates need for external high-voltage MOSFETs and gate drivers in CFL ballast designs |
| Adjustable preheat time & current | Enables optimization of electrode heating duration and peak current via CSW and RSENSE selection |
| Lamp power independence from mains | RMS current control maintains stable lamp output despite ±10% mains fluctuation |
| Lamp inductor saturation protection | SCP dynamically increases frequency to limit switch current when inductor saturates |
| Capacitive mode detection & recovery | CMP discharges CSW to raise frequency and avoid destructive capacitive conduction during ignition/steady state |
Applications
| Indoor Residential Lighting | Outdoor Area Lighting |
|---|---|
Use Scenario: Integrated electronic ballast in screw-base CFL retrofit lamps for ceiling fixtures and table lamps. IC Role / Device Role / Timing Role: Half-bridge driver executing preheat → ignition → RMS-stabilized steady-state sequence. Use Value: Ensures >10,000-hour lamp life via controlled electrode heating and inductor saturation avoidance. | Use Scenario: Weatherproof CFL fixture for streetlights and parking lot illumination operating on 220 V AC mains. IC Role / Device Role / Timing Role: High-reliability lamp driver with OTP and CMP active under ambient temperature extremes. Use Value: Maintains consistent lumen output across −25 °C to +60 °C ambient via RMS current regulation. |
| Commercial Office Lighting | Industrial Task Lighting |
Use Scenario: Multi-lamp troffer fixtures in open-plan offices requiring flicker-free start and stable light output. IC Role / Device Role / Timing Role: Preheat timing controller and RMS current regulator ensuring uniform lamp ignition and brightness. Use Value: Reduces visible lamp-to-lamp variation by ±3% current matching across parallel ballasts. | Use Scenario: High-vibration CFL fixtures in factory environments where mechanical stress affects lamp reliability. IC Role / Device Role / Timing Role: Fault-tolerant driver with SCP and ignition-failure shutdown preventing catastrophic failure. Use Value: Extends mean time between failures (MTBF) by 40% compared to discrete half-bridge solutions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar CFL half-bridge driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| UBA2211AP/N1,112 | Higher 13.5 Ω on-resistance; 0.9 A max ignition current - lower power capability | Suitable only for ≤15 W CFLs; reduced thermal margin at full load | Select when lower cost and reduced lamp power justify trade-off in drive strength |
| UBA2211CP/N1,112 | Lower 6.6 Ω on-resistance; 1.85 A max ignition current - higher drive capability | Required for >20 W CFLs or high-inductance lamp configurations | Choose for maximum power scalability and robustness in demanding thermal environments |
Compared with UBA2211AP/N1,112, the UBA2211BP/N1,112 provides 50% higher ignition current and 33% lower on-resistance, enabling broader 15–25 W lamp coverage; versus UBA2211CP/N1,112, it offers better thermal efficiency at mid-power range without over-specifying drive capability.
Availability
UBA2211BP/N1,112 is available at Aetrix Electronics and suitable for indoor residential lighting, outdoor area lighting, and commercial office lighting requiring stable component supply and long-term production continuity.
Supply support for UBA2211BP/N1,112 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
NXP Semiconductors is a global semiconductor company headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and consumer applications.
The UBA2211 family was developed specifically for high-efficiency, integrated electronic ballasts targeting compact fluorescent lamp systems up to 25 W, emphasizing reliability, safety compliance, and ease of design-in.
FAQ
What is the maximum lamp power supported by UBA2211BP/N1,112?
The UBA2211BP/N1,112 supports Compact Fluorescent Lamps up to 25 W, as confirmed in the official NXP product data sheet Section 3. Its 1.35 A peak ignition current and 9 Ω integrated MOSFET on-resistance are optimized for this power range under 220 V mains conditions.
Does UBA2211BP/N1,112 require external diodes for the DVDT supply?
Yes, UBA2211BP/N1,112 in the DIP8 package (SOT97-1) does not integrate the DVDT supply diodes. As stated in Section 5 of the datasheet, these diodes must be mounted externally - unlike the SO14 variant which integrates them internally.
How is preheat time adjusted in UBA2211BP/N1,112?
Preheat time in UBA2211BP/N1,112 is set by the external capacitor CSW, with typical value 47 nF yielding 0.55 s (Section 10, Table 5). Equation 3 in the datasheet confirms Csw = tph × 1.5 s / 100 nF, allowing precise tuning based on lamp filament requirements.
What protection features are built into UBA2211BP/N1,112?
UBA2211BP/N1,112 integrates Saturation Current Protection (SCP), OverTemperature Protection (OTP), Capacitive Mode Protection (CMP), overpower control, and automatic system shutdown upon ignition failure - all detailed in Sections 2.4 and 7.9–7.12 of the datasheet.
Can UBA2211BP/N1,112 operate directly from rectified 220 V AC mains?
Yes, UBA2211BP/N1,112 is designed for 220 V mains operation. Its HV pin accepts up to 373 V DC operating voltage and withstands 550 V transients for 10 minutes, making it compatible with standard bridge-rectified 220 V AC inputs as shown in Figure 8 of the datasheet.
UBA2211BP/N1,112 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Type:
- CFL/TL Driver
- Frequency:
- 40.05kHz ~ 42.68kHz
- Voltage - Supply:
- 10.7V ~ 13.8V
- Current - Supply:
- -
- Current - Output Source/Sink:
- 1.35A
- Dimming:
- No
- Operating Temperature:
- -40°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 8-DIP
UBA2211BP/N1,112 FAQ
1.How can I place an order for UBA2211BP/N1,112 through Aetrix?
Please submit a Request for Quotation (RFQ) for UBA2211BP/N1,112 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for UBA2211BP/N1,112 reliable?
The price and inventory of UBA2211BP/N1,112 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for UBA2211BP/N1,112 is usually 5 days.
3.What payment methods are accepted for UBA2211BP/N1,112?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UBA2211BP/N1,112 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for UBA2211BP/N1,112?
UBA2211BP/N1,112 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your UBA2211BP/N1,112 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for UBA2211BP/N1,112?
For technical support, including UBA2211BP/N1,112 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UBA2211BP/N1,112 requirements.
6.How does Aetrix verify that UBA2211BP/N1,112 is sourced from the original manufacturer or authorized distributors?
All UBA2211BP/N1,112 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that UBA2211BP/N1,112 meets industry standards.
7.What is the process for return or replacement of UBA2211BP/N1,112?
All UBA2211BP/N1,112 units undergo pre-shipment inspection (PSI). If there is an issue with UBA2211BP/N1,112, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The UBA2211BP/N1,112 part is unused and in its original packaging.
Return procedure for UBA2211BP/N1,112:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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