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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > LED Drivers

STMicroelectronics HVLED815PF

Name: HVLED815PF
Brand: STMicroelectronics
SKU: HVLED815PF
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: HVLED815PF

Manufacturer:: STMicroelectronics

Category:: LED Drivers

Package:: 16-SOIC (0.154", 3.90mm Width)

Datasheet:: HVLED815PF.pdf

Description:: IC LED DRIVER OFFL PWM 16SO

Quantity:: RFQ Add To RFQ list

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Product details

Overview

HVLED815PF from STMicroelectronics is a high-voltage primary-switching LED driver IC integrating an 800 V avalanche-rugged 6 Ω Power MOSFET and a PSR-based PWM controller in SO16N package. It delivers ±3% constant LED current accuracy, quasi-resonant (QR) operation up to 166 kHz, and >0.9 power factor for offline AC-DC LED drivers up to 15 W - used in bulb replacement lamps and compact LED lighting systems.

For engineers reviewing the HVLED815PF datasheet, HVLED815PF pinout, HVLED815PF application, or HVLED815PF equivalent, key selection criteria include primary-sensing regulation without optocoupler, drain-source breakdown voltage (800 V), R_DS(on) (6 Ω typ.), thermal resistance (R_thJA = 110 °C/W), and QR valley-skipping/burst-mode load-adaptive control.

Technical Context

The HVLED815PF implements a current-mode quasi-resonant flyback controller with integrated 800 V/6 Ω MOSFET and patented primary sensing regulation (PSR). Its demagnetization detection (DMG pin) enables zero-voltage switching by triggering MOSFET turn-on at transformer valley points, while internal line feedforward (via CS pin resistors R_PF/R_OS) ensures mains-independent constant-current regulation.

It features multimode operation: QR mode at heavy load (hyperbolic f_sw vs. load), valley-skipping at medium/light load (piecewise-linear f_sw reduction), and controlled burst mode below ~100 Hz for ultra-low standby consumption. Protection includes open/short LED string detection, hiccup-mode OCP (V_CS = 1.0 V), and thermal shutdown (T_J = 150 °C).

Key Specifications

Parameter	Value and Actual Design Meaning
V_DSS	800 V - Withstands rectified 230 VAC mains peaks (≈325 V) with full safety margin and avalanche energy rating (50 mJ).
R_DS(on)	6 Ω (typ.) at T_J = 25°C - Enables efficient single-stage 15 W LED driving without external MOSFET or heatsink in SO16N.
Power Factor	>0.9 - Achieved via analog line feedforward on CS pin using R_PF/R_OS, eliminating active PFC stage.
Current Accuracy	±3% - Tight LED output current tolerance maintained across line/load/temperature via PSR and internal V_ILED reference (212 mV).
f_sw Max	166 kHz - Top-limited switching frequency prevents EMI excursions and ensures stable QR operation down to light loads.
Startup Voltage	V_START = 50 V (typ.) - High-voltage startup circuit draws 5.5 mA from DRAIN to charge VCC, enabling direct mains connection without auxiliary bias winding.
Thermal R_thJA	110 °C/W - Allows 0.9 W dissipation at T_A = 50°C in standard SO16N PCB layout; junction limited to 150°C.

Pinout & Package

Package: SO16N (16-pin small outline, exposed pad for thermal enhancement; pins 13–16 internally connected to DRAIN and metal frame).

Pin/Terminal	Circuit Role	Design Meaning
1 SOURCE	MOSFET source node	Return path for sense resistor (R_SENSE) and CS input; connects to primary ground and current sense feedback loop.
2 CS	Current sense & feedforward input	Monitors MOSFET current via R_SENSE; also receives line voltage feedforward via R_PF/R_OS to enable high PF operation.
3 VCC	IC supply rail	Bias voltage (11.5–23 V) supplied by HV startup generator or auxiliary winding; internal Zener clamps at 25 V.
4 GND	Signal & power ground	Common return for control logic, gate drive, and CS/ILED/DMG analog circuits; must be star-connected to minimize noise coupling.
5 ILED	Constant-current reference node	Connects external C_LED (10 µF); internal circuit develops 212 mV reference to regulate average LED current with ±3% accuracy.
6 DMG	Demagnetization & voltage monitor	Detects transformer valley (negative edge <70 mV) for QR turn-on; also samples output voltage for CV regulation and line feedforward.
7 COMP	Error amplifier output	Transconductance amplifier output (0.7–2.7 V range); compensation network between COMP and GND sets CV/CC loop stability.
8, 9–12 N.A./N.C.	No-connect / grounded terminals	Pins 8, 9, 10, 11 must be tied to GND; pin 12 is floating (no internal connection) for creepage clearance.
13–16 DRAIN	MOSFET drain terminals	High-side switch node connected to bulk capacitor and transformer primary; pins bonded to metal frame for thermal conduction.

Key Features

Feature	Design Value
Integrated 800 V Power MOSFET	Eliminates external high-voltage switch and associated gate drive complexity; supports direct rectified-mains operation up to 15 W.
Primary Sensing Regulation (PSR)	Removes optocoupler, secondary shunt regulator, and secondary current sense - reduces BOM count and improves reliability in sealed LED lamps.
Quasi-Resonant Valley-Skipping	Reduces switching losses and EMI by turning on MOSFET at transformer zero-current points; adapts valley count dynamically as load decreases.
Open/Short LED String Protection	Automatically detects LED string open-circuit (via DMG monitoring) or short-circuit (via CS overcurrent) and enters safe hiccup or shutdown mode.
Self-Supply Operation	Internal HV startup generator recharges VCC during each MOSFET off-time when auxiliary winding voltage drops - ensures stable CC regulation under all loads.

Applications

Smart Bulb Replacement

Commercial Downlight Driver

Use Scenario: Retrofit A19/E26 LED bulbs replacing incandescent lamps in residential sockets.

IC Role / Device Role / Timing Role: Primary-side QR flyback controller with integrated MOSFET and PSR feedback - replaces discrete controller + MOSFET + optocoupler solution.

Use Value: Enables compact, cost-optimized 10–15 W design meeting ENERGY STAR® and IEC 61000-3-2 Class C harmonic limits via >0.9 PF.

Use Scenario: Fixed-output 12–24 V, 350–700 mA LED drivers for recessed downlights in office retail spaces.

IC Role / Device Role / Timing Role: Constant-current LED driver with automatic open/short protection - maintains safe operation during LED failure in inaccessible fixtures.

Use Value: Eliminates secondary-side sensing components, reducing assembly cost and improving long-term reliability in thermally constrained enclosures.

Dimmable GU10 Lamp

Industrial Panel Indicator

Use Scenario: TRIAC-dimmable GU10 LED lamps requiring high PF and flicker-free dimming down to 10%.

IC Role / Device Role / Timing Role: QR controller with adaptive valley-skipping and burst mode - sustains stable regulation across wide dimming range without audible noise.

Use Value: Maintains ±3% current accuracy and >0.9 PF even at minimum dim level, complying with EN 61000-3-3 flicker requirements.

Use Scenario: Status indicator LEDs on industrial HMIs and control panels powered directly from 230 VAC mains.

IC Role / Device Role / Timing Role: Compact, isolated LED driver with built-in short-circuit protection - prevents system fault propagation during LED failure.

Use Value: Self-contained solution fits within tight board space; open/short detection avoids false alarms or uncontrolled brightness drift.

Equivalent & Alternatives

The following parts are listed as comparable options for similar primary-sensing LED driver applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
ON Semiconductor NCL30002	800 V MOSFET, PSR, QR, but no integrated HV startup; requires external bias winding.	Lacks self-supply capability - unsuitable for applications where auxiliary winding voltage collapses under CC regulation.	Select when auxiliary winding is robust and board space allows external startup circuit.
Diodes Incorporated AL1676	700 V MOSFET, PSR, QR, 5% current accuracy, no line feedforward - PF ≈ 0.6–0.7.	Lower PF limits compliance with strict harmonic standards; less accurate current regulation affects color consistency in multi-LED arrays.	Select for cost-sensitive, non-certified indoor lighting where PF > 0.6 suffices.

Compared with NCL30002 and AL1676, HVLED815PF uniquely combines 800 V ruggedness, integrated HV startup, >0.9 PF, and ±3% current accuracy - making it optimal for certified, compact, self-sustaining LED lamp designs where reliability and regulatory compliance are critical.

Availability

HVLED815PF is available at Aetrix Electronics and suitable for smart bulb replacement, commercial downlight drivers, dimmable GU10 lamps, and industrial panel indicators requiring stable component supply and long-term lifecycle support.

Supply support for HVLED815PF 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

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing microcontrollers, power ICs, sensors, and analog devices for industrial, automotive, and consumer markets.

HVLED815PF belongs to ST's HVLED family of offline LED drivers - engineered specifically for cost-sensitive, high-reliability AC-DC LED lighting applications demanding integrated high-voltage switching, PSR feedback, and regulatory-compliant power factor.

FAQ

What is the purpose of the DMG pin in HVLED815PF?

The DMG pin serves dual functions: it detects transformer demagnetization via negative-going edges to enable quasi-resonant zero-voltage switching, and it samples the auxiliary winding voltage at valley end to provide output voltage feedback for constant-voltage regulation. Its internal clamping (−60 mV to 3.3 V) and arming logic (110 mV threshold) ensure noise-immune timing synchronization without external components.

How does HVLED815PF achieve >0.9 power factor without active PFC?

HVLED815PF achieves high power factor through analog line feedforward applied to the CS pin using external resistors R_PF and R_OS. This modulates the MOSFET peak current in phase with the rectified AC input voltage, shaping input current to closely follow voltage waveform - delivering >0.9 PF in single-range configurations (Figure 1 of DS9147) without additional PFC stages or controllers.

Can HVLED815PF operate without an auxiliary winding?

No - an auxiliary winding is mandatory. It supplies the IC via the VCC pin during normal operation and provides the DMG signal for QR timing and output voltage sampling. While the internal HV startup generator enables initial power-up from DRAIN, sustained operation and CV/CC regulation depend on auxiliary winding energy transfer; omitting it causes regulation failure and potential overvoltage.

What protection features does HVLED815PF include for LED string faults?

HVLED815PF provides comprehensive LED string protection: open-circuit detection via DMG pin monitoring (loss of demagnetization signal triggers shutdown), short-circuit detection via CS pin overcurrent (hiccup-mode OCP at V_CS = 1.0 V), and thermal shutdown at T_J = 150°C. All protections are fully integrated - no external comparators or timers required - ensuring fail-safe behavior in sealed lamp housings.

HVLED815PF Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

Package/Case:: 16-SOIC (0.154", 3.90mm Width)

Packaging:: Tube

Product Status:: Discontinued at Digi-Key

Type:: AC DC Offline Switcher

Topology:: Flyback

Internal Switch(s):: Yes

Number of Outputs:: 1

Voltage - Supply (Min):: 11.5V

Voltage - Supply (Max):: 23V

Voltage - Output:: -

Current - Output / Channel:: -

Frequency:: 166kHz

Dimming:: PWM

Applications:: -

Operating Temperature:: -40°C ~ 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 16-SO

HVLED815PF FAQ

1.How can I place an order for HVLED815PF through Aetrix?

Please submit a Request for Quotation (RFQ) for HVLED815PF 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 HVLED815PF reliable?

The price and inventory of HVLED815PF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HVLED815PF is usually 5 days.

3.What payment methods are accepted for HVLED815PF?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HVLED815PF transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for HVLED815PF?

HVLED815PF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your HVLED815PF 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 HVLED815PF?

For technical support, including HVLED815PF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HVLED815PF requirements.

6.How does Aetrix verify that HVLED815PF is sourced from the original manufacturer or authorized distributors?

All HVLED815PF 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 HVLED815PF meets industry standards.

7.What is the process for return or replacement of HVLED815PF?

All HVLED815PF units undergo pre-shipment inspection (PSI). If there is an issue with HVLED815PF, 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 HVLED815PF part is unused and in its original packaging.

Return procedure for HVLED815PF:

1.Submit a request within 90 days.

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

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