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STMicroelectronics LED6000PHTR
- Part No.:
- LED6000PHTR
- Manufacturer:
- STMicroelectronics
- Category:
- LED Drivers
- Package:
- 16-TSSOP (0.173", 4.40mm Width) Exposed Pad
- Datasheet:
-
LED6000PHTR.pdf
- Description:
- IC LED DRV RGLTR PWM 3A 16HTSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,500
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Product details
Overview
LED6000PHTR from STMicroelectronics is a monolithic step-down current source IC designed for high-brightness LED driving, delivering up to 3 A DC output current with ±3% accuracy, 4.5–61 V input range, and dedicated PWM dimming control via the DIM pin. It integrates a 250 mΩ typical RDS(on) high-side N-DMOS switch and supports adjustable switching frequency (250 kHz–1.5 MHz) for compact inductor selection in halogen-replacement lighting systems.
For engineers reviewing the LED6000PHTR datasheet, LED6000PHTR pinout, LED6000PHTR application, or LED6000PHTR equivalent, this device serves as a fully protected, thermally robust LED driver with synchronization capability, soft-start control, and VBIAS-assisted light-load efficiency-key for automotive exterior lighting, architectural LED modules, and industrial signage requiring stable current regulation under wide-input conditions.
Technical Context
The LED6000PHTR implements voltage-mode PWM control with a fixed-frequency sawtooth oscillator whose slope is feedforward-compensated for both input voltage and switching frequency variations-ensuring consistent loop gain across operating conditions. Its error amplifier features 100 dB DC gain and 23 MHz GBWP, with FB referenced to a trimmed 0.25 V internal reference and COMP providing direct access to the error signal for external compensation.
Dimming is implemented digitally via the DIM pin (1.23 V rising / 0.75 V falling thresholds), with timeout-driven oscillator suspension after 42 ms of low state to reduce quiescent current. Synchronization supports master/slave operation up to five devices on one SYNCH net, with 180° phase shift between master clock and slave output to minimize input RMS ripple.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | Up to 3 A DC with ±3% accuracy-enables precise, stable LED brightness without external current-sense amplification. |
| Input Voltage Range | 4.5 V to 61 V-supports 12 V/24 V/48 V industrial and automotive supply rails, including cold-crank and load-dump transients. |
| RDS(on) | 250 mΩ typ. at ILX = 0.5 A-reduces conduction loss and thermal stress in high-current HB LED strings. |
| Switching Frequency | Adjustable 250 kHz–1.5 MHz via FSW pin resistor-allows optimization of size vs. EMI in space-constrained lighting designs. |
| Dimming Control | Dedicated DIM pin with 1.23 V/0.75 V thresholds and 42 ms timeout-enables clean PWM dimming down to <1% duty cycle without flicker or startup artifacts. |
| Thermal Protection | Auto-recovery thermal shutdown at 170 °C with 15 °C hysteresis-prevents latch-up during sustained overtemperature events in enclosed fixtures. |
| Quiescent Current | 2.4 mA typ. operating (VIN+VCC), 10 µA typ. shutdown-extends battery life in always-on signage and emergency lighting. |
Pinout & Package
LED6000PHTR is housed in an HTSSOP16 package with exposed pad (RthJA = 40 °C/W), optimized for thermal dissipation in high-power LED driver applications. The exposed pad must be soldered to PCB ground plane for reliable thermal performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VBIAS | Auxiliary bias supply input | Switches internal analog circuitry from VCC to VBIAS rail above 2.9 V-improves light-load efficiency by reducing VCC regulator dropout loss. |
| VIN (Pins 2,3) | Main power input | Dual VIN pins reduce trace resistance and IR drop-critical for sustaining 3 A continuous current with minimal input voltage sag. |
| VCC | Internal circuitry supply | Filtered internal rail bypassed with 1 µF ceramic capacitor-stabilizes gate drive and control logic during transient load steps. |
| EN | Enable control | Active-high logic input (0.35–0.9 V threshold)-allows system-level power sequencing and standby mode activation. |
| DIM | PWM dimming interface | Internally pulled down with 2 µA current-accepts standard 3.3 V/5 V logic PWM signals without external level-shifting. |
| LX (Pins 13,14) | Power switch node | Dual LX pins lower parasitic inductance in high-di/dt paths-minimizes switching ringing and EMI in multi-LED string configurations. |
| BOOT | High-side gate driver supply | Connects 100 nF bootstrap capacitor between BOOT and LX-enables full enhancement of integrated N-DMOS switch during 100% duty cycle operation. |
| GND (Pin 16 + EP) | Signal and thermal ground | Exposed pad (EP) must be connected to solid GND plane-provides primary thermal path and low-impedance return for high-frequency switching currents. |
Key Features
| Feature | Design Value |
|---|---|
| Adjustable soft-start time | Programmed via external SS capacitor (5 µA charge current)-prevents inrush current and ensures monotonic LED current ramp during power-up. |
| Synchronization capability | Master/slave SYNCH pin with 180° phase shift-enables interleaved operation of up to five LED6000PHTRs to cut input capacitor RMS current by >30%. |
| VBIAS switchover | Automatic transition from VCC to VBIAS supply above 2.9 V-reduces no-load power consumption by ~60% compared to VCC-only operation. |
| Programmable peak current limit | Set via ILIM pin resistor (0.68–4.7 A range)-allows inductor RMS current matching to nominal LED current, optimizing thermal design. |
| Low dropout operation | 12 µs max. minimum off-time-supports high-duty-cycle operation at low VIN/VOUT ratios, essential for 12 V input driving 10+ white LEDs in series. |
Applications
| Automotive Exterior Lighting | Architectural LED Modules |
|---|---|
|
Use Scenario: Driving 8–12 white LEDs in sequential DRL/turn signal assemblies with dynamic dimming profiles. IC Role / Device Role / Timing Role: Constant-current source with synchronized PWM dimming and thermal foldback-ensures uniform luminance across temperature and battery voltage variation. Use Value: ±3% current accuracy maintains photometric compliance; 61 V max input withstands ISO 7637-2 pulse 5a load dump transients without derating. |
Use Scenario: High-density linear LED strips for façade illumination with centralized 48 V DC distribution. IC Role / Device Role / Timing Role: Step-down current regulator with adjustable fSW and VBIAS efficiency boost-enables compact, fanless fixture design with >92% peak efficiency. Use Value: Dual LX and VIN pins reduce layout parasitics; HTSSOP16 exposed pad sustains 3 A continuous current at TA ≤ 70 °C without heatsink. |
| Industrial Signage | Halogen Bulb Replacement |
|
Use Scenario: Outdoor digital signage with ambient temperature ranging –40 °C to +85 °C and IP66-rated enclosures. IC Role / Device Role / Timing Role: Thermally robust LED driver with auto-recovery shutdown and wide-input operation-guarantees uptime in uncontrolled environments. Use Value: 170 °C thermal shutdown with 15 °C hysteresis prevents thermal runaway; RthJA = 40 °C/W enables convection-only cooling. |
Use Scenario: Retrofit MR16/GU10 lamps replacing 35 W halogen bulbs with 5 W LED equivalents. IC Role / Device Role / Timing Role: Monolithic buck current source with integrated MOSFET and dimming interface-eliminates need for external controllers or sense resistors. Use Value: 250 mΩ RDS(on) and low IQ (10 µA shutdown) meet Energy Star Lamps V2.1 standby power requirements (<0.5 W). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LED current source applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM3409HVMM/NOPB | 40 V max input, 3.5 A max current, no VBIAS pin, requires external MOSFET | Lacks integrated high-side switch and VBIAS efficiency boost-requires larger board area and higher BOM cost. | Choose when input voltage is capped at 40 V and discrete MOSFET selection is preferred for thermal partitioning. |
| MAX20050ATPA/VY+ | 65 V max input, 2.5 A max current, I2C programmable, no DIM pin-uses analog/digital dimming via CTRL pin | Requires microcontroller interface for dimming; lacks dedicated hardware PWM pin and synchronization capability. | Choose when digital configuration and fault reporting via I2C are prioritized over standalone PWM simplicity and multi-device sync. |
Compared with LM3409HVMM/NOPB and MAX20050ATPA/VY+, the LED6000PHTR uniquely combines 61 V input tolerance, integrated 3 A switch, hardware DIM control, and multi-device SYNCH-making it optimal for cost-sensitive, high-reliability HB LED systems where layout simplicity and thermal performance are critical.
Availability
LED6000PHTR is available at Aetrix Electronics and suitable for automotive exterior lighting, architectural LED modules, and industrial signage requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for LED6000PHTR 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 analog, power, MCU, and sensor solutions for industrial, automotive, and consumer markets.
The LED6000PHTR belongs to ST's high-power LED driver product line, engineered specifically for constant-current HB LED applications demanding high efficiency, thermal resilience, and seamless dimming integration in space- and reliability-constrained environments.
FAQ
What is the maximum allowable junction temperature for continuous operation?
The LED6000PHTR has a specified operating junction temperature range of –40 °C to +150 °C. Continuous operation at TJ = 150 °C is permitted per datasheet Section 2.3, but thermal design must ensure that the device enters auto-recovery thermal shutdown only under abnormal overload or ambient conditions-typical design targets keep TJ ≤ 125 °C at full load using the HTSSOP16 exposed pad.
Can the LED6000PHTR drive multiple parallel LED strings?
No-the LED6000PHTR is a single-channel constant-current source intended for series-connected LED strings. Driving parallel strings would cause current imbalance due to forward-voltage mismatches; for multi-string applications, separate LED6000PHTR channels or a matrix topology with individual current regulation per string is required.
How does the VBIAS pin improve efficiency at light load?
VBIAS supplies the internal analog circuitry (error amplifier, oscillator, bias references) directly when its voltage exceeds 2.9 V, bypassing the less-efficient internal VCC regulator. This reduces quiescent power dissipation by ~60% at light loads-verified by IQOPVBIAS = 1.5–2.4 mA versus IQOPVIN = 2.4–3.4 mA-extending battery runtime in always-on signage.
Is external compensation required for stable operation?
Yes-COMP and FB pins provide direct access to the error amplifier output and inverting input, requiring an external Type II or Type III compensation network. The datasheet (Section 5.3) specifies exact RC/CF values based on selected output capacitor ESR and inductor value; omitting compensation causes instability, oscillation, or poor transient response during dimming transitions.
LED6000PHTR 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 Regulator
- Topology:
- Step-Down (Buck)
- Internal Switch(s):
- Yes
- Number of Outputs:
- -
- Voltage - Supply (Min):
- 4.5V
- Voltage - Supply (Max):
- 61V
- Voltage - Output:
- -
- Current - Output / Channel:
- 3A
- Frequency:
- 250kHz ~ 1.5MHz
- Dimming:
- PWM
- Applications:
- -
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-HTSSOP
LED6000PHTR FAQ
1.How can I place an order for LED6000PHTR through Aetrix?
Please submit a Request for Quotation (RFQ) for LED6000PHTR 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 LED6000PHTR reliable?
The price and inventory of LED6000PHTR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LED6000PHTR is usually 5 days.
3.What payment methods are accepted for LED6000PHTR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LED6000PHTR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LED6000PHTR?
LED6000PHTR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LED6000PHTR 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 LED6000PHTR?
For technical support, including LED6000PHTR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LED6000PHTR requirements.
6.How does Aetrix verify that LED6000PHTR is sourced from the original manufacturer or authorized distributors?
All LED6000PHTR 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 LED6000PHTR meets industry standards.
7.What is the process for return or replacement of LED6000PHTR?
All LED6000PHTR units undergo pre-shipment inspection (PSI). If there is an issue with LED6000PHTR, 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 LED6000PHTR part is unused and in its original packaging.
Return procedure for LED6000PHTR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LED6000PHTR 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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