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STMicroelectronics LED6001TR
- Part No.:
- LED6001TR
- Manufacturer:
- STMicroelectronics
- Category:
- LED Drivers
- Package:
- 16-TSSOP (0.173", 4.40mm Width) Exposed Pad
- Datasheet:
-
LED6001TR.pdf
- Description:
- IC LED DRIVER CTRLR PWM 16HTSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,272
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Product details
Overview
LED6001TR from STMicroelectronics is a PWM-dimmable single-channel LED driver IC integrating a boost controller, high-side current sensing, and dual LDOs (3.3 V/5 V). It delivers up to 60 V output voltage with ±4% output current accuracy, supports boost/SEPIC/buck-boost topologies, and enables analog+PWM dimming for high-brightness LED strings in off-grid street lighting.
For engineers reviewing the LED6001TR datasheet, LED6001TR pinout, LED6001TR application, or LED6001TR equivalent, key selection criteria include input voltage range (5.5–36 V), adjustable switching frequency (100 kHz–1 MHz), high-side sensing (30–300 mV differential), thermal shutdown with autorestart, and fault reporting via open-drain XFAULT.
Technical Context
The LED6001TR implements peak current mode control with external MOSFET gate drive (GATE pin) and cycle-by-cycle overcurrent protection via CSNS. Its dual LDO architecture supplies both internal circuitry (LDO3, 3.3 V) and external gate drivers (VDR, 5 V), with independent UVLO thresholds (2.8 V / 4.6 V).
It features dedicated analog dimming (ADIM, 0.3–1.2 V linear control) and dual PWM functionality: PWMI for device enable + dimming input, and PWMO for direct N-MOSFET dimming switch control. Fault management includes open-load detection (OVFB), short-circuit detection (VFBN disconnection), and thermal shutdown (150 °C trip, 40 °C hysteresis).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 5.5 V to 36 V - supports wide-range DC sources including 12 V/24 V industrial rails and off-grid battery systems. |
| Output Voltage Capability | Up to 60 V - sufficient for driving 15–20 white LEDs in series under typical forward voltage conditions. |
| Current Sensing Accuracy | ±4% over temperature and production spread - ensures stable LED brightness without per-unit calibration. |
| Switching Frequency Range | 100 kHz to 1 MHz - adjustable via FSW resistor or external sync; avoids audible noise and optimizes EMI filter size. |
| Shutdown Current | <10 µA at TJ ≤ 25 °C - enables ultra-low-power standby in emergency lighting and battery-backed applications. |
| Dimming Interfaces | PWM (PWMI/PWMO) + analog (ADIM, 10:1 ratio) - allows hybrid dimming for flicker-free operation and fine-grained brightness control. |
| Fault Reporting | Open-drain XFAULT - asserts low on thermal shutdown, output overvoltage, or LED overcurrent, enabling system-level safety response. |
Pinout & Package
LED6001TR is housed in an HTSSOP-16 package with exposed thermal pad (TPAD), electrically connected to PGND/SGND, requiring PCB copper pour for thermal management.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PWMI | Enable & PWM dimming input | Dual-function digital input: ≥100 µs high pulse enables device and sets PWM duty; low >10 ms triggers shutdown. |
| FSW | Frequency setting/sync input | Resistor-to-ground sets fSW (100 kHz–1 MHz); tied to LDO3 fixes 600 kHz; accepts external clock for multi-device synchronization. |
| XFAULT | Fault indicator output | Open-drain output pulled low during thermal shutdown, OVFB trip, or LED overcurrent - requires external pull-up. |
| LDO3 | 3.3 V device supply | Internal LDO output powering analog/digital core; UVLO threshold 2.8 V; bypass with 1 µF MLCC near pin. |
| SGND | Analog reference ground | Return for COMP, ADIM, OVFB, CSNS; must be star-connected to avoid noise coupling into current sense path. |
| COMP | Loop compensation node | Transconductance amplifier output; RC network to SGND sets loop stability for boost/SEPIC/buck-boost configurations. |
| ADIM | Analog dimming control | Voltage input (0.3–1.2 V) linearly scales LED current reference; 0.3 V = 10%, 1.2 V = 100% full-scale output. |
| OVFB | OVP feedback input | Connects to resistor divider midpoint at LED string output; trips at 1.20 V threshold to protect against open-circuit failure. |
| CSNS | MOSFET current sense | Connects to MOSFET source; monitors switch current for OCP; slope compensation injected here to prevent subharmonic oscillation. |
| PWMO | PWM dimming output | Gate driver for external N-MOSFET in series with LED string; in-phase with PWMI, enabling enhanced PWM dimming without LED current ripple. |
| PGND | Power ground | Return for VDR, GATE, and CSNS; must be low-inductance connection near power MOSFET source and sense resistor quiet terminal. |
| GATE | External MOSFET driver | Drives high-side P-MOSFET gate; 3 Ω pull-up / 1 Ω pull-down resistance enables fast switching with 15 ns rise time (CL = 3.3 nF). |
| VIN | Main supply input | Input for both LDOs; requires 1 µF MLCC to PGND; supports 5.5–36 V DC with 40 V absolute max rating. |
| VFBN / VFBP | High-side current sense inputs | Differential pair across external sense resistor; 30–300 mV common-mode range; rejects ground bounce in high-noise LED string environments. |
| TPAD | Thermal pad | Electrically tied to PGND/SGND; must be soldered to large copper area for Rth,JA ≤ 45 °C/W (2s2p layout). |
Key Features
| Feature | Design Value |
|---|---|
| Integrated dual-LDO power supply | On-chip 3.3 V (20 mA) and 5 V (40 mA) regulators eliminate external bias supplies and reduce BOM count. |
| Topology flexibility | Supports boost, SEPIC, and floating buck-boost - enables single IC solution across indoor, outdoor, and off-grid LED lighting designs. |
| High-side current sensing | Enables P-MOSFET high-side switch configuration, providing inherent protection against LED+ short-to-ground faults. |
| Programmable soft-start | Fixed 3.5 ms internal soft-start prevents inrush current and stabilizes startup in high-capacitance LED string applications. |
| Multi-fault detection | Simultaneous monitoring of thermal, OVP, LED overcurrent, open-load, and short-circuit conditions via single XFAULT pin. |
Applications
| Indoor & Architectural Lighting | Off-Grid Street Lighting |
|---|---|
Use Scenario: Constant-current LED drivers powering recessed downlights and linear architectural strips in commercial buildings. IC Role / Device Role / Timing Role: Primary LED current regulator with analog dimming for DALI-compatible smooth brightness control and PWM for scene switching. Use Value: ±4% current accuracy ensures consistent lumen output across fixtures; HTSSOP-16 thermal pad enables compact heatsinkless designs. | Use Scenario: Solar-powered LED street luminaires operating from 12–24 V battery banks with variable input and long cable runs. IC Role / Device Role / Timing Role: Boost controller maintaining regulated LED current despite wide VIN variation (5.5–36 V) and ambient temperature swings (−40 to +125 °C). Use Value: 10 µA shutdown current extends battery life; thermal autorestart prevents permanent shutdown during summer heat buildup. |
| Emergency Lighting Systems | Gaming Machine Illumination |
Use Scenario: Self-contained emergency exit signs with backup battery, requiring fail-safe LED operation during AC loss. IC Role / Device Role / Timing Role: Fault-aware LED driver that asserts XFAULT on open-circuit LED string or thermal overload, triggering system alarm and battery switchover. Use Value: Integrated open-load detection eliminates need for external comparators; UVLO on both LDOs ensures clean power sequencing during brownout recovery. | Use Scenario: High-reliability RGB LED backlighting in casino slot machines requiring precise color mixing and flicker-free animation. IC Role / Device Role / Timing Role: Single-channel constant-current driver with hybrid PWM+analog dimming for simultaneous brightness and color balance control. Use Value: PWMO-driven external MOSFET enables true zero-current PWM dimming without current ripple; 1 MHz max fSW suppresses audible coil whine. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LED driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM3409MH/NOPB | Adjustable current sense threshold (50–500 mV); no integrated LDOs; requires external 5 V bias; no analog dimming pin. | Targeted at high-efficiency boost-only LED drivers where board space allows discrete bias generation. | Choose when higher current sense flexibility is needed and external LDOs are acceptable; lacks ADIM and XFAULT integration. |
| MAX16832ATP+ | Fixed 200 kHz fSW; no external sync; only PWM dimming; no high-side sensing - uses low-side sense with shunt to PGND. | Suitable for cost-sensitive indoor lighting where topology is fixed and thermal constraints are moderate. | Choose for simpler BOM and lower cost where analog dimming and topology flexibility are not required. |
Compared with LM3409MH/NOPB and MAX16832ATP+, LED6001TR provides integrated dual-LDOs, analog dimming, high-side sensing, and multi-topology support - reducing external components and enhancing fault resilience in demanding off-grid and safety-critical lighting.
Availability
LED6001TR is available at Aetrix Electronics and suitable for indoor architectural lighting, off-grid street lighting, and emergency LED lighting requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for LED6001TR 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 automotive ICs with strong manufacturing control and AEC-Q100 qualification capabilities.
The LED6001TR belongs to ST's LED driver product line, designed specifically for single-string, high-brightness LED applications requiring robust fault protection, topology flexibility, and hybrid dimming in industrial and outdoor lighting environments.
FAQ
What is the minimum recommended bypass capacitance for LDO3 and VDR pins?
A 1 µF X7R MLCC placed as close as possible to each pin (LDO3–SGND and VDR–PGND) is required per the datasheet. This ensures stable LDO regulation, minimizes noise coupling into the current sense path, and meets start-up timing specifications (100 µs typical). Larger values may delay start-up but improve ripple rejection.
Can LED6001TR drive a buck-boost topology without floating ground?
No - the LED6001TR supports only floating-load buck-boost configurations, where the LED string is isolated from PGND. True non-isolated buck-boost requires a different controller architecture. The device's high-side sensing and gate drive are optimized for topologies where the LED cathode connects to PGND (boost) or floats (SEPIC/floating buck-boost).
How does the slope compensation work on the CSNS pin?
The LED6001TR injects a 50 µA sawtooth current into the CSNS pin, summing with the MOSFET source current through the sense resistor. This creates a composite voltage (vCSNS) that adds ramp compensation to prevent subharmonic oscillation above 50% duty cycle. External RSLOPE is calculated using Equation 3 in the datasheet to match inductor downslope.
Is the PWMO output capable of driving a logic-level N-MOSFET directly?
Yes - PWMO has 3–8 Ω pull-down and 14–22 Ω pull-up resistance, delivering 50–120 ns rise/fall times into 3.3 nF load. It can directly drive small-signal logic-level N-MOSFETs (e.g., DMN3025LSD) used for series LED dimming. For larger gate charges, a buffer stage is recommended to maintain timing integrity.
LED6001TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 16-TSSOP (0.173", 4.40mm Width) Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- DC DC Controller
- Topology:
- SEPIC, Step-Down (Buck), Step-Up (Boost)
- Internal Switch(s):
- No
- Number of Outputs:
- 1
- Voltage - Supply (Min):
- 5.5V
- Voltage - Supply (Max):
- 36V
- Voltage - Output:
- -
- Current - Output / Channel:
- -
- Frequency:
- 100kHz ~ 1MHz
- Dimming:
- Analog, PWM
- Applications:
- -
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- Automotive
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-HTSSOP
LED6001TR FAQ
1.How can I place an order for LED6001TR through Aetrix?
Please submit a Request for Quotation (RFQ) for LED6001TR 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 LED6001TR reliable?
The price and inventory of LED6001TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LED6001TR is usually 5 days.
3.What payment methods are accepted for LED6001TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LED6001TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LED6001TR?
LED6001TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LED6001TR 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 LED6001TR?
For technical support, including LED6001TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LED6001TR requirements.
6.How does Aetrix verify that LED6001TR is sourced from the original manufacturer or authorized distributors?
All LED6001TR 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 LED6001TR meets industry standards.
7.What is the process for return or replacement of LED6001TR?
All LED6001TR units undergo pre-shipment inspection (PSI). If there is an issue with LED6001TR, 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 LED6001TR part is unused and in its original packaging.
Return procedure for LED6001TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LED6001TR Tags
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BCR402RE6327HTSA1
Infineon Technologies
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BCR430UXTSA2
Infineon Technologies
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BCR420UE6433HTMA1
Infineon Technologies
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BCR420UE6327HTSA1
Infineon Technologies
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BCR421UE6327HTSA1
Infineon Technologies
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LYT1604D-TL
Power Integrations
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HV9910CLG-G
Microchip Technology
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CL2N8-G
Microchip Technology
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BCR420UW6-7
Diodes Incorporated
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BCR421UW6-7
Diodes Incorporated
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BCR420UFD-7
Diodes Incorporated
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BCR421UFD-7
Diodes Incorporated
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