My Inquiry
My Account
STMicroelectronics HVLED001BY
- Part No.:
- HVLED001BY
- Manufacturer:
- STMicroelectronics
- Category:
- LED Drivers
- Package:
- 10-SOP (0.154", 3.90mm Width)
- Datasheet:
-
HVLED001BY.pdf
- Description:
- IC LED DRIVER OFFL PWM 10SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,755
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
HVLED001BY from STMicroelectronics is a high-voltage quasi-resonant flyback controller for single- and two-stage LED drivers, featuring primary-side regulation (PSR), 800 V high-voltage startup, <100 µA quiescent current in low-consumption mode, and integrated input voltage sensing for power factor correction. It enables HPF LED drivers with <5% THD across universal AC input (90–264 VAC) and supports 0–10 V/PWM dimming.
For engineers reviewing the HVLED001BY datasheet, HVLED001BY pinout, HVLED001BY application, or HVLED001BY equivalent, this IC delivers verified PSR accuracy (±1.5% VOUT regulation), programmable frequency foldback via TOFF pin, and latch-free recovery via Auto-Reload Timer (ART) - critical for industrial LED lighting reliability and no-load standby compliance (<300 mW).
Technical Context
The HVLED001BY implements peak-current-mode control with valley-switching detection (ZCD pin) to achieve quasi-resonant operation, reducing switching losses and EMI. Its internal multiplier uses HVSU-sensed line voltage and FB/PSR feedback to maintain high power factor (>0.9 at full load) and low THD without auxiliary windings or external PFC controllers.
It integrates dual-loop capability: primary-side regulation (PSR) via ZCD-based output voltage sensing and secondary-side optocoupler feedback (OPTO pin), both feeding an OR-structured internal error path. Protection logic includes brownout (75–125 ms delay), overcurrent (1.1 V CS threshold), and over-power (2.8 V FB clamp) with automatic ART-restart after fault clearance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Topology Support | Quasi-resonant flyback (primary/secondary regulated), buck-boost, boost, buck, SEPIC - enables flexible LED driver architecture selection. |
| Startup Voltage | 800 V HVSU pin withstand rating with 40–55 V turn-on threshold - eliminates external startup resistor network and enables direct AC-line connection. |
| PSR Reference Accuracy | 2.6 V ±20 mV (25°C), ±0.1 V over –40 to 125°C - ensures stable constant-voltage output for LED string biasing without secondary sensing. |
| Standby Consumption | 480–600 µA Iq in low-consumption mode - achieves <300 mW no-load power per IEC 62301 Ed.2 Class D requirements. |
| Dimming Interface | 0–10 V analog and PWM dimming compatible via dedicated pins - supports commercial-grade tunable-white and intensity control. |
| Protection Response | Brownout detection at 100 µA ZCD sink current; 100 ms OPP timeout; ART auto-restart after 2.5 s - prevents thermal runaway and enables unattended recovery. |
| Gate Drive Strength | 0.66 A source / 1.2 A sink peak current - directly drives 1 Ω gate impedance MOSFETs up to 650 V without external buffer. |
Pinout & Package
HVLED001BY is housed in a 10-lead SSOP package (4.4 mm × 3.0 mm, 0.65 mm pitch) with exposed thermal pad for enhanced power dissipation in enclosed LED driver housings.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| HVSU (Pin 1) | High-voltage startup & line sensing | Withstands 800 V DC; charges VCC during startup and provides real-time input voltage feedforward for PFC optimization and OVP triggering. |
| N.C. (Pin 2) | No-connect | Internally unused; must remain floating - no routing or PCB trace required. |
| TOFF (Pin 3) | Frequency foldback control | Voltage-programmable blanking time (55–115 µs) to skip resonant valleys and reduce switching frequency under light load. |
| FB (Pin 4) | Primary-side regulation output | PSR error amplifier output; clamped at 2.8 V for over-power protection; sets burst-mode thresholds (0.9–1.11 V). |
| OPTO (Pin 5) | Secondary-side feedback input | Accepts optocoupler collector signal; disables regulation when pulled below 1.054 V - enables remote on/off and analog dimming interface. |
| ZCD (Pin 6) | Zero-current detection & multi-sense | Detects transformer demagnetization for QR timing; senses output voltage (PSR) and input brownout (100 µA sink threshold). |
| CS (Pin 7) | Current sense comparator input | Monitors MOSFET current via shunt; triggers OCP at 1.1 V and saturation protection at 750 mV clamp level. |
| GND (Pin 8) | Analog/digital reference | Single-point ground for all analog blocks (ZCD, CS, FB) and digital logic - requires low-inductance star connection. |
| GD (Pin 9) | Gate driver output | Push-pull stage delivering 14.5 V high / 0.1 V low swing; rise/fall times <30 ns / <5 ns into 1 nF load. |
| VCC (Pin 10) | Supply rail & UVLO monitor | 13.2 V turn-on threshold; 7.9 V low-consumption activation; internal clamp protects against transients up to 18 V. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 800 V HVSU | Eliminates external high-voltage startup circuitry and reduces BOM count by ≥3 components (startup resistor, diode, capacitor). |
| Primary-side regulation (PSR) | Enables isolated constant-voltage LED drivers without optocoupler or secondary-side TL431, cutting system cost and improving long-term stability. |
| Smart Auto-Reload Timer (ART) | Guarantees automatic recovery from brownout, OVP, or open-loop faults within 2.5 s - no manual reset or external watchdog needed. |
| Programmable frequency foldback | TOFF pin adjusts blanking window to maintain QR operation down to 20% load, improving light-load efficiency by ≥8% vs fixed-frequency controllers. |
| 0–10 V & PWM dimming support | Dedicated OPTO and remote control pin enable seamless integration with DALI-2, 0–10 V wall panels, and microcontroller-based PWM dimming systems. |
Applications
| Commercial LED Troffer Drivers | Industrial High-Bay Lighting |
|---|---|
|
Use Scenario: 40–120 W constant-voltage LED troffer with 0–10 V dimming in office buildings. IC Role / Device Role / Timing Role: Primary-side regulated QR flyback controller managing 220 VAC input, providing 48 V/2.5 A output with THD <4% and PF >0.95. Use Value: Eliminates secondary-side feedback components, reduces thermal stress on optocoupler, and meets ENERGY STAR V2.1 standby power limits (<200 mW). |
Use Scenario: 150–240 W high-bay LED fixture operating in warehouse environments with wide ambient temperature range (–25°C to +60°C). IC Role / Device Role / Timing Role: Dual-loop controller using OPTO for precise current regulation and ZCD-based PSR as backup - ensures output stability during optocoupler aging or failure. Use Value: ART timer enables automatic restart after voltage sags, preventing lamp drop-out during factory power fluctuations. |
| Streetlight LED Drivers | UV-C Disinfection Modules |
|
Use Scenario: Outdoor IP67-rated LED streetlight with surge immunity (6 kV line-earth) and extended lifetime requirement (>50,000 hrs). IC Role / Device Role / Timing Role: High-reliability QR controller leveraging 800 V HVSU for robust startup after lightning-induced brownouts and integrated BO/OVP for grid instability resilience. Use Value: No external startup network increases MTBF; PSR reduces component count in sealed enclosure, lowering condensation risk. |
Use Scenario: Constant-current UV-C LED module (275 nm) requiring precise 350 mA output with rapid on/off cycling for germicidal duty cycles. IC Role / Device Role / Timing Role: Fast-response flyback controller using GD pin's 1.2 A sink capability to drive high-gain MOSFETs for sub-100 µs turn-off transitions. Use Value: Burst-mode operation (1.5 ms period) maintains regulation during 10% duty-cycle pulsing while holding output ripple <2%. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-power-factor LED driver controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor NCL30001DR2G | Fixed-frequency CRM (not QR); no integrated HVSU - requires external 1 MΩ startup resistor and auxiliary winding for VCC. | Lacks PSR capability; mandates optocoupler + TL431 for regulation - higher BOM cost and reduced reliability in sealed fixtures. | Select only if design prioritizes lower EMI over efficiency; not suitable for ultra-low standby targets. |
| Diodes Incorporated AP3768MTR-G1 | QR controller with 650 V HVSU rating; no ART timer - latches off on fault until power cycle. | Supports only PSR (no OPTO pin); lacks 0–10 V dimming interface - incompatible with analog-dimming infrastructure. | Choose for cost-sensitive indoor lamps where fault recovery is managed externally; avoid for outdoor/streetlight use. |
Compared with NCL30001DR2G and AP3768MTR-G1, HVLED001BY uniquely combines 800 V HVSU, dual-loop regulation, ART recovery, and dimming interfaces - enabling single-chip solutions for Class C/D standby compliance and field-serviceable LED drivers.
Availability
HVLED001BY is available at Aetrix Electronics and suitable for commercial LED troffers, industrial high-bay luminaires, and outdoor streetlight drivers requiring stable component supply, long-lifecycle assurance, and RoHS-compliant packaging.
Supply support for HVLED0001BY 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, specializing in power management, analog, and microcontroller technologies for industrial, automotive, and consumer markets.
HVLED001BY belongs to ST's HVLED family of LED driver controllers, engineered specifically for high-efficiency, high-power-factor, and ultra-low-standby LED lighting systems - targeting compliance with IEC 61000-3-2, ENERGY STAR, and DesignLights Consortium standards.
FAQ
What is the maximum AC input voltage range supported by HVLED001BY?
HVLED001BY supports universal AC input from 90 VAC to 264 VAC. Its HVSU pin tolerates up to 800 V DC, and input overvoltage protection triggers at 570 V (typical) on the HVSU node - enabling robust operation across global mains voltages including 230 VAC ±10% and 277 VAC commercial systems.
Can HVLED001BY operate without an optocoupler?
Yes. HVLED001BY supports fully isolated primary-side regulation (PSR) using the ZCD pin to sense reflected output voltage, eliminating the need for optocoupler and TL431 in constant-voltage LED drivers. The OPTO pin remains optional for secondary-side current regulation or remote disable functionality.
How does the Auto-Reload Timer (ART) function recover from faults?
When a fault occurs (e.g., brownout or OVP), HVLED001BY enters Stop mode for 2.5 s (typical Trec). After this interval, it automatically attempts restart: recharges VCC via HVSU, validates FB/OPTO levels, and resumes active mode if conditions normalize - no external circuitry or host MCU intervention required.
What thermal derating guidance applies for SSOP10 package at 85°C ambient?
With RthJA = 120 °C/W, junction temperature rises ~10.2 °C per 85 mW dissipated. At 85°C ambient, max allowable power dissipation is 375 mW to hold TJ ≤ 125°C. Use minimum 2 cm² copper pour under thermal pad and limit switching frequency above 65 kHz only with forced airflow.
HVLED001BY Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 10-SOP (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Type:
- AC DC Offline Switcher
- Topology:
- Flyback, SEPIC, Step-Down (Buck), Step-Up (Boost)
- Internal Switch(s):
- No
- Number of Outputs:
- 1
- Voltage - Supply (Min):
- 7.3V
- Voltage - Supply (Max):
- 18V
- Voltage - Output:
- -
- Current - Output / Channel:
- -
- Frequency:
- -
- Dimming:
- PWM
- Applications:
- General Purpose
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-SSOP
HVLED001BY FAQ
1.How can I place an order for HVLED001BY through Aetrix?
Please submit a Request for Quotation (RFQ) for HVLED001BY 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 HVLED001BY reliable?
The price and inventory of HVLED001BY are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HVLED001BY is usually 5 days.
3.What payment methods are accepted for HVLED001BY?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HVLED001BY transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HVLED001BY?
HVLED001BY orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HVLED001BY 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 HVLED001BY?
For technical support, including HVLED001BY datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HVLED001BY requirements.
6.How does Aetrix verify that HVLED001BY is sourced from the original manufacturer or authorized distributors?
All HVLED001BY 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 HVLED001BY meets industry standards.
7.What is the process for return or replacement of HVLED001BY?
All HVLED001BY units undergo pre-shipment inspection (PSI). If there is an issue with HVLED001BY, 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 HVLED001BY part is unused and in its original packaging.
Return procedure for HVLED001BY:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
HVLED001BY Tags
-
BCR402RE6327HTSA1
Infineon Technologies
-
BCR430UXTSA2
Infineon Technologies
-
BCR420UE6433HTMA1
Infineon Technologies
-
BCR420UE6327HTSA1
Infineon Technologies
-
BCR421UE6327HTSA1
Infineon Technologies
-
LYT1604D-TL
Power Integrations
-
HV9910CLG-G
Microchip Technology
-
CL2N8-G
Microchip Technology
-
BCR420UW6-7
Diodes Incorporated
-
BCR421UW6-7
Diodes Incorporated
-
BCR420UFD-7
Diodes Incorporated
-
BCR421UFD-7
Diodes Incorporated
Tech Hub
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
