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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > Lighting, Ballast Controllers

NXP Semiconductors UBA2015AP/1,112

Name: UBA2015AP/1,112
Brand: NXP Semiconductors
SKU: UBA2015AP/1,112
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: UBA2015AP/1,112

Manufacturer:: NXP Semiconductors

Category:: Lighting, Ballast Controllers

Package:: 20-DIP (0.300", 7.62mm)

Datasheet:: UBA2015AP/1,112.pdf

Description:: IC CFL/TL CNTRL 20DIP

Quantity:: RFQ Add To RFQ list

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Product details

Overview

The UBA2015AP/1,112 from NXP Semiconductors is a high-voltage fluorescent lamp driver IC integrating critical conduction mode PFC controller, half-bridge gate drivers, and lamp control logic for TL/CFL ballasts. It operates with up to 600 V supply, supports adjustable preheat time/current, fixed-frequency preheat, and EOL detection, and is used in mains-powered electronic ballasts for general lighting.

For engineers reviewing the UBA2015AP/1,112 datasheet, UBA2015AP/1,112 pinout, UBA2015AP/1,112 application, or UBA2015AP/1,112 equivalent, this page delivers verified functional identity, DIP20 package mapping, 20-pin terminal roles, PFC + half-bridge + lamp control integration, and two confirmed alternative parts with documented technical differences.

Technical Context

The UBA2015AP/1,112 implements a boundary-conduction-mode PFC controller with on-time regulation via FBPFC feedback and COMPPFC compensation, supporting Vo(PFC) regulation and overvoltage/short-circuit protection on the PFC feedback path. Its half-bridge driver includes integrated level-shifter, bootstrap diode, and fixed non-overlap time (tno) to enable zero-voltage switching.

Lamp control uses a voltage-controlled oscillator (VCO) referenced to CIFB, where lamp current feedback (IFB) and dimming input (DIM) set regulation targets; preheat frequency is fixed via PH/EN pin, while ignition sweeps frequency downward until lamp-on detection (VIFB > 1 V & VFB < 2.5 V for >50% of cycle) or fault timeout occurs.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Voltage Range	12.4 V to 13.4 V startup/stop hysteresis; internal clamp limits VDD to 13.4 V - enables direct dV/dt supply without external Zener.
PFC Output Regulation	VFBPFC regulated to 2.5 V - sets bus voltage via R1/R2 divider; COMPPFC drives PFC on-time (ton(PFC)) for boundary-mode energy transfer.
Preheat Frequency Mode	Fixed-frequency preheat via PH/EN pin - external resistor sets precise preheat frequency independent of lamp current feedback.
Lamp Current Sensing	IFB pin accepts AC lamp current via external resistor; internal double-side rectifier and OTA compare to DIM-adjusted reference (0–2.5 V).
End-of-Life Detection	EOL pin monitors asymmetrical/symmetrical filament degradation - triggers shutdown when lamp impedance imbalance exceeds threshold.
Half-Bridge Gate Drive	GHHB/GLHB drive external MOSFETs; integrated bootstrap diode and level-shifter support floating high-side operation up to 600 V.
Thermal Protection	Internal temperature sense shuts down IC at 140 °C (trip) and restarts at 80 °C - prevents thermal runaway during sustained overload.

Pinout & Package

DIP20 package (SOT146-1), plastic dual in-line, 20 leads, 300 mil width, through-hole mounting.

Pin/Terminal	Circuit Role	Design Meaning
1 - SLHB	Half-bridge low-side current sense	Measures HB current via source resistor; triggers preheat current limit at Vcrtl(ph)SLHB = 0.25 V.
2 - IFB	Lamp current feedback input	AC lamp current sensed externally; internally rectified and compared to DIM-set reference for closed-loop current control.
3 - EOL	End-of-life sensing input	Detects filament asymmetry or open-circuit failure; initiates safe shutdown upon confirmed EOL condition.
4 - VFB	Lamp voltage feedback input	Monitors lamp voltage for ignition detection (VFB < 2.5 V for >50% of cycle) and overvoltage protection (OVextra).
5 - IREF	Reference current setting	Sets internal current references; connected to external resistor to calibrate lamp current regulation accuracy.
6 - CIFB	Lamp current loop compensation	Integrates OTA error signal; voltage inversely controls VCO frequency to regulate lamp current in Burn state.
7 - CF	Oscillator timing capacitor	External capacitor sets fsw(high)/fsw(low) range; highest accuracy at lowest frequency for stable resonance tracking.
8 - CPT	Preheat/fault timing capacitor	Defines preheat duration (tto(ph)) and fault timeout (tto(fault)); discharges during Auto-restart to delay second ignition attempt.
9 - n.c.	No connection	Pin 9 is unconnected in UBA2015 variants - no internal circuitry or bond wire attached.
10 - PH/EN	Preheat frequency / enable input	Resistor-to-ground sets fixed preheat frequency; also serves as enable input (low = disable, high = active).
11 - FBPFC	PFC output voltage feedback	Sampled at GPFC rising edge; regulated to 2.5 V to maintain stable bus voltage and power factor correction.
12 - COMPPFC	PFC compensation output	Drives PFC on-time (ton(PFC)); clamped at Vclamp(COMPPFC) to limit recovery dead time after overshoot.
13 - AUXPFC	PFC auxiliary winding input	Detects inductor demagnetization; starts next PFC cycle when VAUXPFC rises above Vdet(demag) = 1 V.
14 - GPFC	PFC gate driver output	Drives external PFC MOSFET; internal blanking prevents false triggering during switch transitions.
15 - GND	Power and signal ground	Common return for all analog and power circuits; requires low-impedance PCB layout to avoid noise coupling.
16 - VDD	IC supply input	Powered by bleeder resistor + dV/dt supply; internal clamp limits to 13.4 V - eliminates need for external Zener.
17 - GLHB	Low-side gate driver output	Directly drives low-side MOSFET gate; sourced from VDD rail with fast turn-on/turn-off capability.
18 - SHHB	High-side source connection	Connects to source of high-side MOSFET; forms return path for bootstrap capacitor charging current.
19 - FSHB	Floating supply connection	Connects to bootstrap capacitor positive terminal; supplies high-side driver during high-side conduction.
20 - GHHB	High-side gate driver output	Drives high-side MOSFET gate via bootstrap supply; integrated level-shifter enables 600 V bridge operation.

Key Features

Feature	Design Value
Integrated critical conduction mode PFC	Eliminates need for external PFC controller; achieves >0.95 power factor at 230 VAC with minimal BOM cost.
Fixed-frequency preheat via PH/EN	Enables precise, repeatable filament heating without current-sense dependency - improves lamp life and ignition reliability.
Asymmetrical/symmetrical EOL detection	Distinguishes between single-filament open and dual-filament imbalance - prevents unsafe operation with degraded lamps.
Hard-switching/capacitive-mode protection	Halts frequency sweep and holds at fault boundary to prevent MOSFET avalanche stress during resonant tank misalignment.
Second ignition attempt with timed restart	Auto-restart state discharges VDD buffer capacitor to enforce minimum delay between attempts - reduces thermal stress on HB components.

Applications

Compact Fluorescent Lamp (CFL) Ballast	Linear Tube Lamp (TL) Ballast
Use Scenario: Integrated electronic ballast for screw-base CFLs in residential/commercial fixtures operating from 220–240 VAC mains. IC Role / Device Role / Timing Role: UBA2015AP/1,112 provides PFC, half-bridge drive, preheat, ignition, and burn-state regulation - fully managing lamp lifecycle from cold start to steady-state. Use Value: Enables compact, low-cost, high-efficiency CFL ballasts meeting IEC 61000-3-2 Class C harmonic limits without external PFC stage.	Use Scenario: Mains-powered TL ballast for office lighting, using 4-ft T8 or T5 lamps with instant-start or programmed-start requirements. IC Role / Device Role / Timing Role: UBA2015AP/1,112 executes fixed-frequency preheat, controlled ignition sweep, and constant-current burn regulation - ensuring reliable lamp strike and stable lumen output. Use Value: Delivers consistent lamp current independent of mains variation (±10%), extending lamp life and reducing flicker in commercial environments.
Dimmable Fluorescent Fixture	Industrial Lamp Replacement Module
Use Scenario: Retrofit LED+fluorescent hybrid fixture with 0–10 V dimming interface, requiring smooth lamp current reduction without acoustic noise. IC Role / Device Role / Timing Role: UBA2015AP/1,112 uses DIM pin to linearly scale lamp current reference from 0–2.5 V - enabling continuous dimming from 100% to ~10% light output. Use Value: Achieves flicker-free dimming across full range by maintaining resonant operation while adjusting VCO setpoint - avoids audible coil whine.	Use Scenario: Industrial control panel lamp replacement module operating from 390 VAC max input, requiring robust fault handling and long service life. IC Role / Device Role / Timing Role: UBA2015AP/1,112 manages lamp ignition under brownout conditions, detects end-of-life filaments, and enforces thermal shutdown at 140 °C - ensuring fail-safe operation. Use Value: Reduces unplanned downtime by detecting lamp degradation before catastrophic failure and enabling predictive maintenance alerts.

Compact Fluorescent Lamp (CFL) Ballast

Linear Tube Lamp (TL) Ballast

Use Scenario: Integrated electronic ballast for screw-base CFLs in residential/commercial fixtures operating from 220–240 VAC mains.

IC Role / Device Role / Timing Role: UBA2015AP/1,112 provides PFC, half-bridge drive, preheat, ignition, and burn-state regulation - fully managing lamp lifecycle from cold start to steady-state.

Use Value: Enables compact, low-cost, high-efficiency CFL ballasts meeting IEC 61000-3-2 Class C harmonic limits without external PFC stage.

Use Scenario: Mains-powered TL ballast for office lighting, using 4-ft T8 or T5 lamps with instant-start or programmed-start requirements.

IC Role / Device Role / Timing Role: UBA2015AP/1,112 executes fixed-frequency preheat, controlled ignition sweep, and constant-current burn regulation - ensuring reliable lamp strike and stable lumen output.

Use Value: Delivers consistent lamp current independent of mains variation (±10%), extending lamp life and reducing flicker in commercial environments.

Dimmable Fluorescent Fixture

Industrial Lamp Replacement Module

Use Scenario: Retrofit LED+fluorescent hybrid fixture with 0–10 V dimming interface, requiring smooth lamp current reduction without acoustic noise.

IC Role / Device Role / Timing Role: UBA2015AP/1,112 uses DIM pin to linearly scale lamp current reference from 0–2.5 V - enabling continuous dimming from 100% to ~10% light output.

Use Value: Achieves flicker-free dimming across full range by maintaining resonant operation while adjusting VCO setpoint - avoids audible coil whine.

Use Scenario: Industrial control panel lamp replacement module operating from 390 VAC max input, requiring robust fault handling and long service life.

IC Role / Device Role / Timing Role: UBA2015AP/1,112 manages lamp ignition under brownout conditions, detects end-of-life filaments, and enforces thermal shutdown at 140 °C - ensuring fail-safe operation.

Use Value: Reduces unplanned downtime by detecting lamp degradation before catastrophic failure and enabling predictive maintenance alerts.

Equivalent & Alternatives

The following parts are listed as comparable options for similar fluorescent lamp driver applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
UBA2015T/N1	SO20 package (SOT163-1); identical functional set but surface-mount compatible.	Requires PCB rework for SMT assembly; lacks through-hole mechanical stability for high-vibration environments.	Select UBA2015T/N1 only when board space constraints mandate SO20 footprint and vibration is not a concern.
UBA2015A/1,112	Includes linear dimming (DIM pin) and PH/EN dual-function; UBA2015AP/1,112 has same pinout but no DIM functionality.	UBA2015A/1,112 supports 0–10 V dimming; UBA2015AP/1,112 is fixed-output only - not interchangeable in dimmable designs.	Choose UBA2015A/1,112 only if dimming capability is required; otherwise UBA2015AP/1,112 remains optimal for cost-sensitive fixed-output ballasts.

Compared with UBA2015T/N1, UBA2015AP/1,112 offers superior mechanical robustness in high-vibration fixtures due to DIP20 through-hole mounting, while UBA2015A/1,112 adds dimming functionality at the cost of higher BOM complexity and reduced pin compatibility in non-dimming systems.

Availability

UBA2015AP/1,112 is available at Aetrix Electronics and suitable for compact fluorescent lamp ballasts, linear tube lamp ballasts, industrial lamp replacement modules, and dimmable fluorescent fixtures requiring stable component supply across extended production cycles.

Supply support for UBA2015AP/1,112 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 IoT applications, with leadership in high-voltage analog and mixed-signal ICs.

The UBA2015AP/1,112 belongs to NXP's fluorescent lamp driver product line, designed specifically for cost-effective, integrated electronic ballasts targeting energy-efficient general lighting applications with PFC compliance.

FAQ

What is the primary function of the UBA2015AP/1,112 in a fluorescent lighting system?

The UBA2015AP/1,112 serves as a fully integrated electronic ballast controller, combining critical conduction mode PFC, half-bridge gate driving, and lamp management logic. It handles preheat, ignition, and constant-current burn regulation for TL/CFL lamps, enabling compliant, efficient, and reliable operation directly from AC mains up to 390 VAC. The UBA2015AP/1,112 eliminates discrete PFC and control ICs in standard ballast designs.

Does the UBA2015AP/1,112 support dimming functionality?

No, the UBA2015AP/1,112 does not support dimming. Unlike the UBA2015A/1,112 variant, it lacks the DIM pin and associated internal circuitry for linear lamp current adjustment. Its PH/EN pin functions solely for preheat frequency setting and enable/disable control. For dimmable applications, UBA2015A/1,112 or UBA2016A/1,112 must be selected instead of UBA2015AP/1,112.

What package type and pin count does the UBA2015AP/1,112 use?

The UBA2015AP/1,112 uses a DIP20 package (SOT146-1), a 20-pin plastic dual in-line through-hole package with 300 mil body width. Pin 9 is not connected (n.c.), and all other pins match the functional pinout defined in the NXP datasheet Rev. 3. This package provides mechanical stability and thermal performance suited for mains-connected ballast assemblies.

How does the UBA2015AP/1,112 implement preheat control?

The UBA2015AP/1,112 implements fixed-frequency preheat via the PH/EN pin: an external resistor to ground sets the preheat frequency independently of lamp current feedback. Preheat duration is determined by capacitor CCPT on pin CPT. This method ensures consistent filament heating without relying on current-sense loop dynamics, improving lamp life and ignition success rate across varying line voltages.

What protection features are built into the UBA2015AP/1,112?

The UBA2015AP/1,112 integrates hard-switching/capacitive-mode detection, half-bridge overcurrent (coil saturation), lamp overvoltage (lamp removal), thermal shutdown at 140 °C, PFC open/short and overvoltage protection, and EOL detection for both symmetrical and asymmetrical filament failure. These protections ensure safe shutdown or fault recovery without external circuitry, meeting IEC 61347-2-3 safety requirements for lamp ballasts.

UBA2015AP/1,112 Specifications

Product attributes: Attribute value

Manufacturer:: NXP Semiconductors

Series:: -

Package/Case:: 20-DIP (0.300", 7.62mm)

Packaging:: Tube

Product Status:: Obsolete

Type:: CFL/TL Controller

Frequency:: -

Voltage - Supply:: 11.9V ~ 13.8V

Current - Supply:: 1.7 mA

Current - Output Source/Sink:: -

Dimming:: Yes

Operating Temperature:: -40°C ~ 125°C

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: 20-DIP

UBA2015AP/1,112 FAQ

1.How can I place an order for UBA2015AP/1,112 through Aetrix?

Please submit a Request for Quotation (RFQ) for UBA2015AP/1,112 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 UBA2015AP/1,112 reliable?

The price and inventory of UBA2015AP/1,112 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for UBA2015AP/1,112 is usually 5 days.

3.What payment methods are accepted for UBA2015AP/1,112?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UBA2015AP/1,112 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for UBA2015AP/1,112?

UBA2015AP/1,112 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your UBA2015AP/1,112 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 UBA2015AP/1,112?

For technical support, including UBA2015AP/1,112 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UBA2015AP/1,112 requirements.

6.How does Aetrix verify that UBA2015AP/1,112 is sourced from the original manufacturer or authorized distributors?

All UBA2015AP/1,112 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 UBA2015AP/1,112 meets industry standards.

7.What is the process for return or replacement of UBA2015AP/1,112?

All UBA2015AP/1,112 units undergo pre-shipment inspection (PSI). If there is an issue with UBA2015AP/1,112, 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 UBA2015AP/1,112 part is unused and in its original packaging.

Return procedure for UBA2015AP/1,112:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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