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Texas Instruments TPS92410D
- Part No.:
- TPS92410D
- Manufacturer:
- Texas Instruments
- Category:
- LED Drivers
- Package:
- 14-SOIC (0.154", 3.90mm Width), 13 Leads
- Datasheet:
-
TPS92410D.pdf
- Description:
- IC LED DRIVER OFFL TRIAC 13SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:380
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Product details
Overview
TPS92410D from Texas Instruments is a high-voltage linear LED controller IC designed for offline AC-driven LED lighting systems. It regulates average LED current via external linear MOSFET gate drive (GDL), supports 9.5–450 VIN, integrates multiplier-based PFC control, analog dimming (ADIM), thermal foldback (TSNS), and overvoltage protection (DOV) - enabling compact, inductorless LED drivers for retrofit bulbs and low-power luminaires.
For engineers reviewing the TPS92410D datasheet, TPS92410D pinout, TPS92410D application, or TPS92410D equivalent, this page delivers verified functional context, validated pin roles, real-world dimmer compatibility, thermal foldback design thresholds, and precise CS regulation behavior under PFC vs. dimmer-detect modes.
Technical Context
The TPS92410D implements a transconductance error amplifier (gM = 43.3 µS) with COMP pin compensation to stabilize current regulation against line and load variations. Its internal multiplier accepts rectified AC voltage at MULT to dynamically scale CS reference, achieving >0.95 power factor and low THD without inductors.
In forward-phase dimmer detection mode, CPS and CDD pins use programmable RC time constants (e.g., 15 ms / 150 ms) to distinguish intentional triac edges from noise; upon detection, it switches from sinusoidal current tracking to constant-current regulation to maintain dimmer hold current.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VIN Range | 9.5 V to 450 V - supports universal AC input (120/230 VAC) and DC up to 450 V without external pre-regulation. |
| VREF | 3.0 V ±1.5% - precision reference for ADIM/TSNS biasing and thermal foldback threshold setting. |
| CS Regulation Voltage | 1.5 V (PFC mode) or 0.1 V (DOV fault mode) - sets linear MOSFET current via RCS resistor; scales linearly with ADIM/TSNS voltage. |
| Thermal Shutdown | 175°C with 10°C hysteresis - disables GDL output to protect MOSFET and PCB during sustained overheating. |
| DOV Threshold | 1.5 V ±0.12 V - triggers overvoltage protection when MOSFET drain exceeds programmed level; reduces CS to 100 mV to limit dissipation. |
| ADIM Dimming Range | 0–1.5 V input → 0–1.291 V CS reference; <40 mV forces GDL shutdown - enables microcontroller or 0–10 V dimmer interface with hard-off capability. |
| GDL Output Drive | 8.2 V VOH / 0.45 V VOL @ ±1 mA - directly drives N-channel linear MOSFET gate without level-shifting circuitry. |
Pinout & Package
TPS92410D uses a 13-pin High-Voltage SOIC package (8.65 mm × 6.00 mm) with creepage-optimized spacing for 700 VIN absolute maximum rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | High-voltage supply input | Direct connection to rectified AC line; powers internal bias regulator and enables operation down to 9.5 V. |
| GDL | Gate drive output | Drives external linear MOSFET gate; capable of sourcing/sinking >2.5 mA to switch high-Ciss devices. |
| CS | Current sense input | Monitors voltage across RCS resistor; sets linear current via feedback to transconductance amplifier. |
| DOV | Drain overvoltage monitor | Accepts resistor divider from MOSFET drain; triggers protection when voltage exceeds 1.5 V threshold. |
| ADIM | Analog dimming input | 0–1.5 V control input; linearly scales CS reference; <40 mV disables GDL for LED turn-off. |
| TSNS | Thermal sense input | Connects to NTC thermistor divider; initiates current foldback when voltage drops below ADIM level. |
| MULT | Multiplier AC input | Receives rectified line voltage sample; enables PFC by modulating CS reference proportional to line waveform. |
| COMP | Error amplifier output | Compensation node for loop stability; requires 4.7 µF capacitor to ground per TI design guidelines. |
| VREF | Precision 3-V reference output | Sources ≤200 µA; used to bias ADIM/TSNS dividers and set thermal foldback thresholds. |
| GND | Signal ground reference | Common return for all analog and digital circuitry; must be low-impedance path to minimize noise coupling. |
Key Features
| Feature | Design Value |
|---|---|
| Multiplier-based PFC | Enables >0.95 power factor and low THD without inductors by forcing input current to track rectified AC voltage. |
| Forward-phase dimmer detection | Uses CPS/CDD RC timing to reliably detect triac edges and switch to constant-current mode, preventing misfire. |
| Programmable overvoltage protection | DOV pin allows user-defined MOSFET drain voltage limit; reduces CS to 100 mV during fault to preserve partial LED output. |
| Thermal foldback with NTC interface | TSNS pin accepts thermistor divider to progressively reduce LED current as temperature rises, avoiding thermal shutdown. |
| Analog dimming with hard-off | ADIM pin provides 0–1.5 V control range and automatic GDL disable below 40 mV - no external logic required for full off. |
Applications
| LED Light Bulb Replacement | Dimmable Indoor Luminaires |
|---|---|
|
Use Scenario: Retrofit A19/E26 LED bulb operating directly from 120 VAC mains with TRIAC dimmer compatibility. IC Role / Device Role / Timing Role: TPS92410D acts as linear current controller, using MULT to track rectified line and GDL to drive series-connected MOSFET+LED string. Use Value: Eliminates magnetic/inductor-based topology, reducing size/cost while maintaining >0.95 PF and smooth dimming down to 10% light output. |
Use Scenario: Wall-mounted LED fixture with 0–10 V analog dimming interface and thermal derating for enclosed housings. IC Role / Device Role / Timing Role: TPS92410D serves as analog-dimming linear regulator, using ADIM for brightness control and TSNS for automatic current reduction above 85°C. Use Value: Enables single-chip thermal management and dimming without MCU, ensuring safe operation in thermally constrained enclosures. |
| Low-Power Outdoor Signage | Emergency Lighting Drivers |
|
Use Scenario: Small outdoor LED sign powered from 230 VAC with surge protection and wide ambient temperature range (−40°C to +85°C). IC Role / Device Role / Timing Role: TPS92410D functions as robust linear controller, leveraging UVLO (8.3 V rising) and thermal shutdown (175°C) for reliability in unregulated environments. Use Value: Withstands cold-start conditions and transient surges; DOV protection prevents MOSFET failure during LED short-circuit events. |
Use Scenario: Battery-backed emergency light using DC input (e.g., 36 V from 3S Li-ion) with fail-safe thermal monitoring. IC Role / Device Role / Timing Role: TPS92410D operates in DC mode (MULT unused), regulating LED current via CS while TSNS monitors heatsink temperature. Use Value: Provides precise current regulation and graceful thermal derating - critical for maintaining minimum lumen output during extended runtime. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar linear LED controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS92411D | Complementary direct-drive switch IC; requires TPS92410D for control - not standalone replacement. | Used only with TPS92410D in dual-chip linear driver architecture; cannot replace TPS92410D's regulation functions. | Select TPS92411D only when building full TPS92410D+TPS92411D reference design; not a functional substitute. |
| AL8862SP-13 | Single-chip buck-boost LED driver with integrated MOSFET; 30 V max input; no HV linear topology. | Requires inductor; limited to low-voltage DC inputs; lacks PFC, dimmer detection, and DOV protection. | Choose AL8862SP-13 for cost-sensitive, low-power DC-fed designs where size and BOM count outweigh PFC needs. |
Compared with TPS92410D, TPS92411D is a dependent companion chip rather than an alternative, while AL8862SP-13 offers integrated switching but sacrifices AC-line compatibility, PFC, and MOSFET-level protection - making TPS92410D uniquely suited for inductorless, high-voltage, dimmable linear LED drivers.
Availability
TPS92410D is available at Aetrix Electronics and suitable for LED light bulb replacement, dimmable indoor luminaires, low-power outdoor signage, and emergency lighting drivers requiring stable component supply across industrial and consumer production programs.
Supply support for TPS92410D 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
Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and power management technologies, with decades of expertise in LED driver innovation.
The TPS92410D belongs to TI's high-voltage linear LED controller product line, engineered specifically for compact, inductorless AC/DC LED drivers that demand high power factor, TRIAC dimmer compatibility, and robust thermal/overvoltage protection.
FAQ
What is the minimum input voltage required for TPS92410D to start up?
The TPS92410D features an undervoltage lockout (UVLO) with a rising threshold of 8.3 V on the VIN pin. Once VIN exceeds this level, the device powers up and begins regulating current. The 2.15 V hysteresis ensures stable operation during line sags. Below 5.85 V (falling threshold), TPS92410D shuts down completely to prevent erratic behavior.
How does TPS92410D achieve power factor correction without an inductor?
TPS92410D achieves high power factor (>0.95) by using its internal multiplier circuit: the MULT pin samples rectified AC line voltage, and the error amplifier dynamically adjusts the CS reference to force input current to follow the AC waveform. This active linear PFC eliminates the need for magnetic components while maintaining low THD in 120/230 VAC applications.
Can TPS92410D be used with reverse-phase (ELV) dimmers?
No - TPS92410D's dimmer detection circuit is explicitly designed for forward-phase (TRIAC) dimmers only. Its CPS/CDD timing and edge-detection logic respond to leading-edge transitions. Reverse-phase (electronic low-voltage) dimmers produce trailing-edge edges and are incompatible; using them may result in flicker, dropout, or failure to detect dimming commands.
What happens to the LED current when the DOV pin triggers overvoltage protection?
When DOV protection activates due to excessive MOSFET drain voltage (e.g., LED short), TPS92410D reduces the CS regulation voltage from its nominal 1.5 V down to 100 mV. This lowers LED current proportionally - preserving partial light output while limiting MOSFET power dissipation. Recovery is automatic once drain voltage falls below the hysteresis threshold (1.48 V).
Is a heatsink required for the external MOSFET when using TPS92410D?
Yes - because TPS92410D drives a linear MOSFET, all power dissipated in the LED string appears as heat in the MOSFET. For example, a 6.6 W LED load at 120 VAC may require >2 W MOSFET dissipation. Thermal foldback (via TSNS) helps manage temperature, but proper heatsinking remains essential to keep junction temperature below 150°C and avoid triggering thermal shutdown in the TPS92410D.
TPS92410D Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width), 13 Leads
- Packaging:
- Tube
- Product Status:
- Active
- Type:
- AC DC Offline Switcher
- Topology:
- -
- Internal Switch(s):
- No
- Number of Outputs:
- 1
- Voltage - Supply (Min):
- 9.5V
- Voltage - Supply (Max):
- 450V
- Voltage - Output:
- -
- Current - Output / Channel:
- -
- Frequency:
- -
- Dimming:
- Analog, TRIAC
- Applications:
- -
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 13-SOIC
TPS92410D FAQ
1.How can I place an order for TPS92410D through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS92410D 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 TPS92410D reliable?
The price and inventory of TPS92410D are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS92410D is usually 5 days.
3.What payment methods are accepted for TPS92410D?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS92410D transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS92410D?
TPS92410D orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS92410D 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 TPS92410D?
For technical support, including TPS92410D datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS92410D requirements.
6.How does Aetrix verify that TPS92410D is sourced from the original manufacturer or authorized distributors?
All TPS92410D 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 TPS92410D meets industry standards.
7.What is the process for return or replacement of TPS92410D?
All TPS92410D units undergo pre-shipment inspection (PSI). If there is an issue with TPS92410D, 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 TPS92410D part is unused and in its original packaging.
Return procedure for TPS92410D:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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