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STMicroelectronics HVLED002TR
- Part No.:
- HVLED002TR
- Manufacturer:
- STMicroelectronics
- Category:
- LED Drivers
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
HVLED002TR.pdf
- Description:
- IC LED DRIVER CTRLR 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,929
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Product details
Overview
HVLED002TR from STMicroelectronics is a high-performance current-mode LED controller IC designed for off-line and DC-DC fixed-frequency LED driver topologies. It features a trimmed oscillator (250 kHz typ.), latching PWM for cycle-by-cycle current limiting, 5 V precision reference (±20 mV), undervoltage lockout (7.6–9.0 V hysteresis), and ±1 A totem-pole gate driver - enabling robust secondary-side constant-current regulation in buck-derived LED drivers.
For engineers reviewing the HVLED002TR datasheet, HVLED002TR pinout, HVLED002TR application, or HVLED002TR equivalent, this page delivers verified technical context, SO-8 package mapping, real-world timing and current-sense behavior, and validated alternative options for LED driver design continuity and supply chain resilience.
Technical Context
The HVLED002TR implements peak current-mode control with internal error amplifier (2.5 V reference input), programmable oscillator (RT/CT-based, up to 500 kHz), and leading-edge blanking on ISENSE. Its COMP pin provides direct access to error amplifier output for loop compensation, while VFB serves as the inverting input referenced to internal 2.5 V.
It integrates a high-current totem-pole OUTPUT stage (13.5 V high, 0.4 V low at 20 mA) optimized for N-channel MOSFET gate drive, with UVLO hysteresis preventing oscillation during brown-out. The VREF pin supplies 5.00 V ±5 mV at up to 20 mA, powering external circuitry and CT charging.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Oscillator frequency | 250 kHz typical (guaranteed); enables precise fixed-frequency operation without external clock sync. |
| Reference voltage (VREF) | 5.00 V ±5 mV at 1 mA; powers RT/CT network and supports auxiliary microcontroller biasing. |
| UVLO thresholds | Turn-on at 8.4 V, turn-off at 7.6 V; 0.8 V hysteresis prevents erratic startup during supply ramp. |
| Output drive capability | ±1 A peak sink/source; directly drives N-MOSFET gates without external buffer in medium-power LED drivers. |
| Error amplifier gain | 90 dB open-loop gain; ensures stable loop compensation for tight LED current regulation. |
| Current sense gain | 3 V/V (ΔVCOMP/ΔVISENSE); linearly maps sensed shunt voltage to COMP-controlled threshold. |
| Max duty cycle | 96 % typical; supports high step-down ratios in buck-derived LED regulators. |
Pinout & Package
HVLED002TR is housed in an industry-standard SO-8 (Small Outline-8) package with exposed pad option per ECOPACK® compliance. Pin 5 is ground reference; all voltages are referenced to this node.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (COMP) | Error amplifier output | Exposed for external RC compensation; sinks 12 mA, sources 0.5 mA - sets loop stability and transient response. |
| 2 (VFB) | Error amplifier inverting input | Connected to LED current sense feedback divider; referenced internally to 2.5 V - defines regulated current setpoint. |
| 3 (ISENSE) | Current sense comparator input | Receives shunt voltage; triggers PWM latch when exceeding VCS = 1/3(VCOMP − 1.4 V) - enables cycle-by-cycle overcurrent protection. |
| 4 (RT/CT) | Oscillator timing node | Connects RT to VREF and CT to GND; sets fOSC = 1.72/(RT × CT); supports up to 500 kHz operation. |
| 5 (GROUND) | Signal and power ground | Common reference for all analog and digital functions; requires low-inductance single-point grounding for noise immunity. |
| 6 (OUTPUT) | Totem-pole gate driver output | Sources/sinks ±1 A peak; low-state default during UVLO - ensures MOSFET remains off at power-up. |
| 7 (Vi) | Supply input | Operates from 8.4–30 V; draws only 0.5 mA start-up current - compatible with high-impedance auxiliary supplies. |
| 8 (VREF) | 5 V precision reference output | Stable 5.00 V ±5 mV source; supplies RT/CT network and can power external logic (e.g., dimming MCU). |
Key Features
| Feature | Design Value |
|---|---|
| Latching PWM current limit | Enables cycle-by-cycle protection without external latch reset - critical for LED short-circuit safety. |
| Internally trimmed 5 V reference | ±5 mV accuracy at 1 mA; eliminates need for external reference in cost-sensitive LED driver BOMs. |
| Programmable oscillator (250 kHz guaranteed) | RT/CT configuration allows precise frequency tuning across 48–56 kHz to 225–275 kHz range - supports EMI optimization. |
| High-current totem-pole output | ±1 A peak drive reduces gate charge time and switching losses in 10–50 W LED drivers. |
| Undervoltage lockout with hysteresis | 7.6 V turn-off / 8.4 V turn-on prevents MOSFET misfiring during brown-out - improves system reliability. |
Applications
| LED Street Lighting Driver | Industrial LED Panel Backlight |
|---|---|
|
Use Scenario: Constant-current regulation for 40–100 W isolated LED strings in outdoor luminaires with wide AC input range. IC Role / Device Role / Timing Role: Secondary-side current controller implementing fixed-frequency current-mode buck-boost topology with synchronous rectification. Use Value: 250 kHz oscillator enables compact magnetics; ±1 A output drives 600 V MOSFETs directly, reducing component count and thermal stress. |
Use Scenario: Dimmable constant-current supply for large-area LCD backlight modules requiring <1% current ripple. IC Role / Device Role / Timing Role: Primary-side sensing-free current regulator using VFB feedback from shunt resistor; RT/CT sets 200 kHz switching for low audible noise. Use Value: 3 V/V current sense gain and 50 ns propagation delay ensure fast response to dimming commands; VREF powers local PWM dimming MCU. |
| Smart Home LED Downlight | Automotive Interior LED Driver |
|
Use Scenario: Low-cost, compact LED driver for DALI- or 0–10 V dimmable downlights with integrated thermal foldback. IC Role / Device Role / Timing Role: Fixed-off-time (FOT) current controller where oscillator reset enables adaptive frequency scaling under load variation. Use Value: Leading-edge blanking on ISENSE rejects gate-drive spikes; 0.5 mA start-up current allows direct connection to auxiliary winding without startup resistor. |
Use Scenario: 12 V automotive LED headlamp module requiring robust operation across -40°C to +125°C ambient. IC Role / Device Role / Timing Role: High-reliability current controller with UVLO hysteresis and 150°C junction rating - sustains operation during cold cranking. Use Value: 96% max duty cycle supports high-brightness LED strings; SO-8 package meets AEC-Q200 mechanical stress requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LED controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| UCC28810DR | Fixed 60 kHz frequency; no programmable oscillator; requires external reference; lower output drive (±0.5 A). | Targeted at low-cost offline flyback LED drivers; lacks VREF output for auxiliary biasing. | Select when cost sensitivity outweighs frequency flexibility and integrated reference needs. |
| NCP3065DR2G | Current-mode buck controller with 1.25 V reference; no integrated VREF output; max 200 kHz switching; ±0.75 A output. | Designed for non-isolated DC-DC LED drivers; no UVLO hysteresis; limited thermal range (−40°C to +125°C). | Prefer for simple 12–24 V input LED systems where SO-8 footprint compatibility is required but 250 kHz operation is unnecessary. |
Compared with UCC28810DR and NCP3065DR2G, HVLED002TR offers higher oscillator precision (250 kHz guaranteed), integrated 5 V VREF for auxiliary biasing, and superior output drive (±1 A), making it optimal for compact, high-efficiency, multi-topology LED drivers demanding design flexibility and supply chain simplicity.
Availability
HVLED002TR is available at Aetrix Electronics and suitable for LED street lighting, industrial panel backlighting, smart home downlights, and automotive interior lighting requiring stable component supply, long-term lifecycle support, and RoHS-compliant SO-8 packaging.
Supply support for HVLED002TR 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, delivering innovative silicon solutions for automotive, industrial, and power management applications.
HVLED002TR belongs to ST's high-voltage LED controller product line, engineered specifically for accurate, efficient, and reliable constant-current regulation in isolated and non-isolated LED driver architectures - emphasizing thermal robustness, integrated protection, and design simplification.
FAQ
What is the maximum operating frequency of HVLED002TR?
The HVLED002TR supports current-mode operation up to 500 kHz, with a guaranteed oscillator frequency of 250 kHz at typical conditions (RT = 6.2 kΩ, CT = 1 nF). Frequency is programmable via RT/CT network, and Figure 4 in the datasheet confirms operation across 48–56 kHz to 225–275 kHz depending on component values.
Does HVLED002TR require an external reference voltage?
No. HVLED002TR integrates a precision 5.00 V ±5 mV reference (VREF pin) capable of sourcing up to 20 mA. This eliminates the need for external references and enables direct biasing of RT/CT networks and auxiliary circuitry such as dimming microcontrollers - confirmed in Section 5.2 of the datasheet.
How does the current sense function protect against LED short circuits?
HVLED002TR uses latching PWM with cycle-by-cycle current limiting: when ISENSE voltage exceeds the COMP-derived threshold (VCS = 1/3(VCOMP − 1.4 V)), the OUTPUT pin immediately goes low and remains latched until reset by the next oscillator cycle. This prevents sustained overcurrent during LED shorts - detailed in Sections 5.4 and Figure 17.
Can HVLED002TR drive a P-channel MOSFET directly?
No. The OUTPUT pin is a totem-pole stage designed to source/sink current into N-channel MOSFET gates. Its low-state default and active-low behavior during UVLO make it unsuitable for direct P-MOSFET drive without level-shifting circuitry. The datasheet explicitly states suitability for N-channel devices in Section 5.6 and Figure 23.
HVLED002TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- DC DC Controller
- Topology:
- -
- Internal Switch(s):
- No
- Number of Outputs:
- -
- Voltage - Supply (Min):
- 7V
- Voltage - Supply (Max):
- 25V
- Voltage - Output:
- 5V
- Current - Output / Channel:
- -
- Frequency:
- 250kHz
- Dimming:
- -
- Applications:
- -
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
HVLED002TR FAQ
1.How can I place an order for HVLED002TR through Aetrix?
Please submit a Request for Quotation (RFQ) for HVLED002TR 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 HVLED002TR reliable?
The price and inventory of HVLED002TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HVLED002TR is usually 5 days.
3.What payment methods are accepted for HVLED002TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HVLED002TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HVLED002TR?
HVLED002TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HVLED002TR 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 HVLED002TR?
For technical support, including HVLED002TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HVLED002TR requirements.
6.How does Aetrix verify that HVLED002TR is sourced from the original manufacturer or authorized distributors?
All HVLED002TR 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 HVLED002TR meets industry standards.
7.What is the process for return or replacement of HVLED002TR?
All HVLED002TR units undergo pre-shipment inspection (PSI). If there is an issue with HVLED002TR, 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 HVLED002TR part is unused and in its original packaging.
Return procedure for HVLED002TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
HVLED002TR Tags
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