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NXP Semiconductors UBA2211CP/N1,112
- Part No.:
- UBA2211CP/N1,112
- Manufacturer:
- NXP Semiconductors
- Category:
- Lighting, Ballast Controllers
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
UBA2211CP/N1,112.pdf
- Description:
- IC CFL/TL DRIVER 42.68KHZ 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:3,593
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Product details
Overview
UBA2211CP/N1,112 from NXP Semiconductors is a high-voltage monolithic half-bridge power IC designed specifically for driving Compact Fluorescent Lamps (CFLs) up to 25 W in mains-powered lighting systems. It integrates high-side and low-side power transistors (6.6 Ω on-resistance), bootstrap diode, and high-voltage supply circuitry. Its RMS current control, adjustable preheat timing, and lamp inductor saturation protection enable reliable cold-start ignition and extended burner lifetime in indoor/outdoor CFL ballasts.
For engineers reviewing the UBA2211CP/N1,112 datasheet, UBA2211CP/N1,112 pinout, UBA2211CP/N1,112 application, or UBA2211CP/N1,112 equivalent, this device delivers verified lamp current regulation, integrated safety protections (SCP, OTP, CMP), and DIP8-compatible layout with external DVDT diodes - critical for cost-sensitive, high-reliability CFL driver design.
Technical Context
The UBA2211CP/N1,112 implements a self-oscillating 555-timer-based controller with internal divider for precise 50% duty cycle generation. Its frequency sweep during ignition (2.5× nominal) targets lamp resonance, while RMS current control maintains constant lamp current independent of mains voltage variation.
Preheat mode uses peak voltage across RSENSE to regulate filament current via VSW(ph); steady-state operation squares VSENSE and compares it to VO(ref)RMS to enforce RMS equivalence. Integrated Saturation Current Protection (SCP) dynamically adjusts frequency and conduction time to prevent inductor saturation damage during transient overloads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Half-bridge output current | ±1.85 A max - supports higher-power CFL burners requiring robust ignition current |
| On-resistance (HS/LS) | 6.6 Ω typ - enables efficient operation at 220 V mains with reduced conduction loss |
| RMS reference voltage | 262–308 mV - sets stable lamp current via external RSENSE without mains dependency |
| Preheat reference voltage | 620 mV - defines peak filament current during controlled preheat phase |
| Non-overlap time | 1.05–1.65 μs - prevents shoot-through by ensuring MOSFET dead-time compliance |
| Operating temperature | −40 °C to +150 °C - supports industrial-grade thermal reliability in enclosed luminaires |
| High-voltage rating (HV pin) | 550 V max transient - withstands mains surge events per IEC 61000-4-5 |
Pinout & Package
DIP8 plastic dual in-line package (SOT97-1), 300 mil width, through-hole mountable. Requires external DVDT supply diodes (not bonded out).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SW | Sweep timing & VCO input | Controls oscillator frequency sweep during preheat and ignition phases |
| SGND | Signal ground | Reference node for all analog sensing and control circuits |
| FS | High-side floating supply output | Drives bootstrap capacitor for high-side gate drive; monitored for UVLO |
| SENSE | Voltage sense input | Measures RMS and peak voltage across RSENSE for current regulation |
| OUT | Half-bridge output | Connects directly to lamp inductor; carries full bridge switching current |
| HV | High-voltage supply input | Accepts rectified mains; powers internal JFET start-up current source |
| VDD | Internal low-voltage supply | Regulated 13.8 V output powering logic and drivers; hysteresis ensures clean start/stop |
| RC | Oscillator timing input | Sets nominal frequency via Rosc/Cosc; internal comparator thresholds define VSW edges |
Key Features
| Feature | Design Value |
|---|---|
| Integrated half-bridge transistors | Monolithic 6.6 Ω HS/LS switches eliminate discrete MOSFET selection and layout complexity |
| Adjustable preheat time & current | Configurable via CSW and RSENSE to match filament thermal mass and extend electrode life |
| Lamp power independence | RMS current control maintains constant lamp current across ±15% mains variation |
| Saturation Current Protection (SCP) | Real-time current monitoring prevents inductor saturation failure during lamp aging or end-of-life |
| Capacitive Mode Protection (CMP) | Frequency adjustment avoids destructive capacitive-mode operation during ignition or lamp failure |
Applications
| Indoor Residential CFL Ballast | Outdoor Streetlight CFL Driver |
|---|---|
Use Scenario: Driving 18–25 W spiral CFL lamps in ceiling fixtures with 220 V AC mains input. IC Role / Device Role / Timing Role: Half-bridge power controller managing preheat, ignition, and RMS-stabilized steady-state operation. Use Value: Ensures consistent light output and >10,000-hour lamp life via controlled electrode heating and inductor saturation avoidance. | Use Scenario: Powering 20 W CFL modules in weatherproof streetlight housings exposed to wide ambient temperature swings. IC Role / Device Role / Timing Role: Mains-connected lamp driver with OTP and SCP enabling reliable cold-start down to −25 °C. Use Value: Maintains stable lamp current despite voltage sags and surges, reducing field failures in unregulated grid environments. |
| Commercial Office Lighting Retrofit | Emergency Exit Sign CFL Module |
Use Scenario: Replacing magnetic ballasts in existing T5-based office troffers using compact CFL retrofit lamps. IC Role / Device Role / Timing Role: Integrated half-bridge IC providing EMI-compliant switching and soft-start sequencing. Use Value: Eliminates flicker and audible noise during startup while meeting EN 55015 conducted emission limits. | Use Scenario: Battery-backed CFL illumination in UL 924-certified exit signs requiring fail-safe ignition under low-voltage DC conditions. IC Role / Device Role / Timing Role: High-voltage controller operating from boosted DC bus derived from NiCd battery pack. Use Value: Minimum glow time control ensures electrode readiness before ignition, preventing failed starts during emergency activation. |
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 |
|---|---|---|---|
| UBA2211BP/N1 | 9.3 Ω HS on-resistance; 1.35 A max ignition current - lower drive capability | Suitable for ≤15 W CFLs; reduced thermal stress in low-power designs | Select UBA2211BP/N1 when lamp power and peak current requirements are lower and board space allows same DIP8 footprint |
| UBA2211AP/N1 | 13.5 Ω HS on-resistance; 0.9 A max ignition current - lowest drive tier | Optimized for ≤11 W CFLs; higher conduction loss but simpler thermal management | Choose UBA2211AP/N1 for cost-sensitive, low-wattage applications where ignition margin is less critical |
Compared with UBA2211BP/N1 and UBA2211AP/N1, the UBA2211CP/N1,112 provides highest ignition current and lowest on-resistance, enabling direct drive of 25 W CFLs without external current boosting - reducing BOM count and improving system efficiency at full load.
Availability
UBA2211CP/N1,112 is available at Aetrix Electronics and suitable for indoor residential lighting, outdoor streetlight ballasts, and commercial office retrofit projects requiring stable component supply and long-term manufacturing continuity.
Supply support for UBA2211CP/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 specializing in secure connectivity solutions for automotive, industrial, and consumer applications.
The UBA2211 family was developed to simplify high-efficiency, high-reliability CFL driver design across diverse mains voltages and burner powers - targeting cost-sensitive, energy-efficient lighting markets prior to LED dominance.
FAQ
What is the maximum lamp power supported by the UBA2211CP/N1,112?
The UBA2211CP/N1,112 supports Compact Fluorescent Lamps up to 25 W, as confirmed in the official NXP product data sheet Section 3. Its 1.85 A maximum ignition current and 6.6 Ω on-resistance are optimized for this power range in 220 V mains applications. Higher wattages require external current boosting or alternative topologies not supported by the UBA2211CP/N1,112.
Does the UBA2211CP/N1,112 require external DVDT supply diodes?
Yes, the UBA2211CP/N1,112 uses the DIP8 package (SOT97-1), which 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 (UBA2211CT/N1) where they are bonded internally. Failure to install them will prevent proper VDD charge pump operation.
How is preheat time configured for the UBA2211CP/N1,112?
Preheat time for the UBA2211CP/N1,112 is set by the external capacitor CSW connected to pin SW, with typical value calculated as Csw = tph × 1.5 s / 100 nF (Section 7.5). For example, a 47 nF capacitor yields ~0.55 s preheat time. The UBA2211CP/N1,112's fixed 620 mV preheat reference voltage ensures repeatable filament current regardless of component tolerances.
What protection features are built into the UBA2211CP/N1,112?
The UBA2211CP/N1,112 integrates Saturation Current Protection (SCP), OverTemperature Protection (OTP), Capacitive Mode Protection (CMP), overpower control, and automatic shutdown on ignition failure. These are active across all operating states - including start-up, preheat, ignition, and steady-state - as detailed in Sections 2.4 and 7.9–7.12 of the datasheet.
Can the UBA2211CP/N1,112 operate from 110 V AC mains?
No, the UBA2211CP/N1,112 is specified exclusively for 220 V mains operation, as explicitly stated in Section 2.1 ("UBA2211C: 220 V mains; 6.6 Ω; 1.85 A maximum ignition current"). Its HV pin absolute maximum rating (550 V) and internal start-up threshold (VDD(start) = 10.7–12.7 V) assume rectified 220 V input (~310 V DC). Operation from 110 V mains would result in insufficient VDD charging and failure to exit start-up state.
UBA2211CP/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:
- 1.85A
- Dimming:
- No
- Operating Temperature:
- -40°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 8-DIP
UBA2211CP/N1,112 FAQ
1.How can I place an order for UBA2211CP/N1,112 through Aetrix?
Please submit a Request for Quotation (RFQ) for UBA2211CP/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 UBA2211CP/N1,112 reliable?
The price and inventory of UBA2211CP/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 UBA2211CP/N1,112 is usually 5 days.
3.What payment methods are accepted for UBA2211CP/N1,112?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UBA2211CP/N1,112 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for UBA2211CP/N1,112?
UBA2211CP/N1,112 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your UBA2211CP/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 UBA2211CP/N1,112?
For technical support, including UBA2211CP/N1,112 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UBA2211CP/N1,112 requirements.
6.How does Aetrix verify that UBA2211CP/N1,112 is sourced from the original manufacturer or authorized distributors?
All UBA2211CP/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 UBA2211CP/N1,112 meets industry standards.
7.What is the process for return or replacement of UBA2211CP/N1,112?
All UBA2211CP/N1,112 units undergo pre-shipment inspection (PSI). If there is an issue with UBA2211CP/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 UBA2211CP/N1,112 part is unused and in its original packaging.
Return procedure for UBA2211CP/N1,112:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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