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Texas Instruments TPS92410DR
- Part No.:
- TPS92410DR
- Manufacturer:
- Texas Instruments
- Category:
- LED Drivers
- Package:
- 14-SOIC (0.154", 3.90mm Width), 13 Leads
- Datasheet:
-
TPS92410DR.pdf
- Description:
- IC LED DRIVER OFFL TRIAC 13SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,127
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Product details
Overview
TPS92410DR from Texas Instruments is a high-voltage linear LED controller IC designed for offline AC-driven LED lighting systems. It regulates average LED current in conjunction with an external linear MOSFET (e.g., TPS92411), supports 9.5–450 VIN, features a precision 3-V reference, analog dimming input (ADIM), and forward-phase dimmer detection. It enables high-power-factor, low-THD operation in compact LED bulb replacements.
For engineers reviewing the TPS92410DR datasheet, TPS92410DR pinout, TPS92410DR application, or TPS92410DR equivalent, key selection considerations include its 13-pin SOIC HV package, VIN range up to 450 V, thermal foldback via TSNS, programmable overvoltage protection on DOV, and compatibility with phase-dimming circuits requiring CPS/CDD timing networks.
Technical Context
The TPS92410DR implements a multiplier-based architecture that forces input current to track rectified AC line voltage-enabling >0.95 power factor and low THD without inductors. Its transconductance error amplifier (gM = 43.3 µS) drives the GDL pin to control an external linear MOSFET gate, while the MULT pin accepts a scaled AC waveform to synchronize regulation.
It operates in two functional modes: multiplier mode for PFC-compliant constant-current regulation, and dimmer detect mode triggered by dv/dt edges on MULT-switching CS regulation to DC level to sustain triac hold current. Overvoltage protection (DOV threshold = 1.5 V ±0.12 V) and thermal foldback (TSNS threshold = 1.5 V) are independently configurable analog inputs with dedicated hysteresis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VIN Range | 9.5 V to 450 V - Supports universal AC input (100–240 VAC after bridge) and DC bus up to 450 V without external pre-regulation. |
| VREF Accuracy | 2.85–3.15 V at 100 µA - Stable 3-V reference for biasing ADIM/TSNS dividers and enabling precise current scaling. |
| CS Regulation Voltage | 1.425–1.575 V (CC mode); 1.125–1.425 V (PFC mode) - Sets linear MOSFET current sense threshold; directly determines LED current accuracy. |
| DOV Threshold | 1.38–1.62 V - Triggers overvoltage protection when external MOSFET drain exceeds safe voltage; reduces CS to 100 mV to limit dissipation. |
| Thermal Shutdown | 175 °C (±5 °C) - Halts operation to prevent die damage; resumes at ~165 °C hysteresis for self-recovery. |
| GDL Output Drive | VOH = 6.5–8.2 V @ –1 mA; VOL = 0.152–0.45 V @ 1 mA - Directly drives gate of high-voltage linear MOSFET without level-shifting. |
| ADIM Input Range | 0–1.5 V - Linearly scales CS reference from full current down to LED turn-off at <40 mV; enables microcontroller or 0–10 V dimmer interface. |
Pinout & Package
TPS92410DR is housed in a 13-pin High-Voltage SOIC (SOIC-HV) package measuring 8.65 mm × 6.00 mm, rated for 700 V absolute maximum VIN and optimized for high-voltage LED driver layouts with creepage/clearance compliance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CPS | Dimmer detection charge timing input | Accepts 10 µA charge current; 1.5 V threshold triggers dimmer detect mode when edge count exceeds CDD time constant. |
| CDD | Dimmer detection discharge timing input | Sinks 1 µA after CPS threshold; 150 ms typical time constant prevents false triggering on line noise. |
| GDL | Gate drive output | Direct high-side gate driver for external linear MOSFET; supports fast switching with 2.5–11.9 mA sink/source capability. |
| CS | Current sense input | Compares sensed voltage across RCS resistor to internal reference; primary feedback for LED current regulation. |
| DOV | Drain overvoltage monitor | Monitors MOSFET drain via resistor divider; activates OVP when voltage exceeds 1.5 V threshold to protect against LED short-circuit failure. |
| TSNS | Thermal sense input | Connects to NTC thermistor divider; initiates current foldback when sensed voltage drops below ADIM level to prevent thermal runaway. |
| ADIM | Analog dimming input | 0–1.5 V input scales CS reference; <40 mV forces GDL low to fully disable LEDs-enables smooth 0–100% dimming control. |
| MULT | AC line multiplier input | Accepts scaled rectified line voltage; enables PFC tracking by modulating CS reference proportionally to instantaneous line voltage. |
| VIN | High-voltage supply input | Primary power input (9.5–450 V); powers internal bias circuitry and UVLO (8.3 V rising threshold). |
| VCC | Internal pre-regulated supply | 10.15 V regulated output; requires 4.7–10 µF bypass capacitor to sustain operation during phase-dimmer zero-crossings. |
| VREF | Precision reference output | 3-V ±1.5% reference; sources up to 200 µA for ADIM/TSNS biasing-minimizes external component count. |
| COMP | Error amplifier compensation | Transconductance amplifier output; connects to RC network (e.g., 4.7 µF to GND) to stabilize loop bandwidth and ensure PFC stability. |
| GND | Signal ground reference | Common return for all analog and digital functions; must be low-impedance connection to minimize noise coupling into sensitive inputs. |
Key Features
| Feature | Design Value |
|---|---|
| No-inductor PFC architecture | Multiplier-based current shaping achieves >0.95 power factor and <10% THD without magnetic components-reducing size, cost, and EMI filter complexity. |
| Programmable overvoltage protection | DOV pin accepts resistor divider from MOSFET drain; 1.5 V threshold with 20 mV hysteresis enables robust protection against LED string short-circuit failures. |
| Thermal foldback with NTC interface | TSNS pin interfaces directly with NTC thermistor; current scales linearly as temperature rises-prevents thermal runaway without external op-amps or comparators. |
| Forward-phase dimmer compatibility | Dual-capacitor dimmer detection (CPS/CDD) reliably distinguishes triac dimmers from line noise; switches to constant-current mode to maintain hold current and avoid flicker. |
| Analog dimming with LED off capability | ADIM pin accepts 0–1.5 V signal; sub-40 mV input forces GDL low to fully extinguish LEDs-enabling seamless integration with 0–10 V wall dimmers or MCU PWM-to-analog converters. |
Applications
| LED Light Bulb Replacement | Dimmable A19 Lamp Driver |
|---|---|
Use Scenario: Retrofit incandescent bulb with integrated 120 VAC or 230 VAC input, no heatsink, and E26/E27 base. IC Role / Device Role / Timing Role: TPS92410DR acts as linear current regulator controller, coordinating with external MOSFET to deliver stable LED current while meeting ENERGY STAR harmonic limits. Use Value: Eliminates inductor and transformer-enabling ultra-thin, low-cost bulb designs with >0.9 PF and compatibility with legacy TRIAC dimmers. | Use Scenario: 9–12 W A19 lamp with smooth 10–100% dimming range and flicker-free operation at low angles. IC Role / Device Role / Timing Role: TPS92410DR enters dimmer detect mode upon detecting leading-edge edges, then maintains constant current to satisfy triac hold requirements. Use Value: Enables full-range dimming without audible noise or pop-on artifacts-critical for residential lighting acceptance. |
| Low-Power Offline LED Tube Driver | Thermally Constrained Indicator Lighting |
Use Scenario: 2-ft LED tube operating directly from 120 VAC line with minimal PCB area and no forced air cooling. IC Role / Device Role / Timing Role: TPS92410DR regulates current using RCS resistor and provides thermal foldback via TSNS-connected NTC on aluminum PCB. Use Value: Prevents luminous flux degradation and premature LED failure by reducing current before junction temperature exceeds 125 °C. | Use Scenario: Industrial panel indicator with sealed enclosure, ambient temperature up to 70 °C, and requirement for fail-safe thermal derating. IC Role / Device Role / Timing Role: TPS92410DR uses ADIM for brightness control and TSNS for autonomous current reduction when local temperature exceeds preset threshold. Use Value: Maintains visual consistency and extends service life without external thermal management circuitry or firmware intervention. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar linear LED controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS92411DR | Complementary direct-drive switch IC-not a controller; lacks multiplier, ADIM, TSNS, DOV, and COMP pins. Requires TPS92410DR for full functionality. | Cannot replace TPS92410DR standalone; only usable as paired MOSFET driver in same reference design. | Select TPS92411DR only when implementing TI's dual-chip linear LED solution-never as drop-in substitute for TPS92410DR. |
| AL8862SP-13 | Single-chip buck controller with integrated high-side switch; 65 V max input; no HV linear topology, no MULT pin, no DOV/TSNS analog monitoring. | Designed for low-voltage DC input (12–48 V); unsuitable for direct AC-line operation or thermal foldback in high-ambient environments. | Choose AL8862SP-13 only for low-input-voltage, isolated DC-DC LED drivers where inductor use is acceptable and AC-line direct drive is not required. |
Compared with TPS92410DR, TPS92411DR serves only as its MOSFET companion-not a functional alternative-while AL8862SP-13 targets fundamentally different topologies (buck vs. linear) and input domains (low-V DC vs. HV AC), making neither suitable as a direct replacement in offline linear LED applications.
Availability
TPS92410DR is available at Aetrix Electronics and suitable for LED light bulb replacement, dimmable A19 lamp drivers, and thermally constrained indicator lighting requiring stable component supply, long-lifecycle assurance, and consistent parametric performance across production batches.
Supply support for TPS92410DR 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 and high-reliability industrial IC design.
The TPS92410DR belongs to TI's offline LED controller product line, engineered specifically for high-voltage linear regulation in cost-sensitive, space-constrained AC-powered lighting-emphasizing PFC compliance, thermal safety, and seamless dimmer interoperability without magnetics.
FAQ
What is the primary function of the TPS92410DR in an LED driver system?
The TPS92410DR is a high-voltage linear LED controller IC that regulates average LED current by driving an external linear MOSFET. It achieves high power factor and low THD through its multiplier-based architecture, supports analog dimming via ADIM, and provides critical protections including overvoltage (DOV), thermal foldback (TSNS), and thermal shutdown. The TPS92410DR does not integrate a power switch-it requires pairing with a discrete MOSFET such as those used with the TPS92411.
How does the TPS92410DR achieve power factor correction without an inductor?
The TPS92410DR achieves power factor correction by using an internal analog multiplier that modulates the current sense reference (CS) in proportion to the rectified AC line voltage applied to the MULT pin. This forces the input current waveform to closely follow the input voltage waveform-delivering >0.95 power factor and low THD without magnetic components. The TPS92410DR relies on this active line-synchronized regulation rather than passive filtering or switched-mode topologies.
Can the TPS92410DR operate with both leading-edge (TRIAC) and trailing-edge (ELV) dimmers?
The TPS92410DR is explicitly designed for forward-phase (leading-edge TRIAC) dimmer compatibility, with dedicated CPS and CDD pins and internal edge-detection circuitry to trigger dimmer detect mode. It does not support reverse-phase (trailing-edge ELV) dimmers, as its detection architecture responds only to rapid rising dv/dt edges characteristic of TRIAC firing. For ELV dimming, a separate controller with reverse-edge detection or a hybrid dimmer interface would be required.
What is the role of the DOV pin on the TPS92410DR, and how is it configured?
The DOV pin on the TPS92410DR monitors the drain voltage of the external linear MOSFET via a resistor divider. When the sensed voltage exceeds 1.5 V (with 20 mV hysteresis), the TPS92410DR activates overvoltage protection-reducing the CS regulation voltage to 100 mV to limit MOSFET power dissipation during LED string short-circuit events. Configuration requires selecting RDRAIN and RGROUND values per TI's Equation (2) and (3) in the datasheet, typically using a 121 kΩ RGROUND with 4.7 µF capacitor to prevent false triggering during startup.
Does the TPS92410DR require external compensation, and if so, where is it applied?
Yes, the TPS92410DR requires external compensation on the COMP pin to stabilize its transconductance error amplifier loop. A 4.7 µF capacitor connected from COMP to GND is recommended for most applications to ensure phase margin and prevent oscillation-especially critical in PFC mode where loop dynamics interact with line frequency harmonics. Additional series resistance or RC networks may be added depending on MOSFET gate capacitance and layout parasitics, but the baseline 4.7 µF capacitor is mandatory for stable operation.
TPS92410DR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width), 13 Leads
- Packaging:
- Tape & Reel (TR)
- 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
TPS92410DR FAQ
1.How can I place an order for TPS92410DR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS92410DR 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 TPS92410DR reliable?
The price and inventory of TPS92410DR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS92410DR is usually 5 days.
3.What payment methods are accepted for TPS92410DR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS92410DR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS92410DR?
TPS92410DR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS92410DR 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 TPS92410DR?
For technical support, including TPS92410DR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS92410DR requirements.
6.How does Aetrix verify that TPS92410DR is sourced from the original manufacturer or authorized distributors?
All TPS92410DR 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 TPS92410DR meets industry standards.
7.What is the process for return or replacement of TPS92410DR?
All TPS92410DR units undergo pre-shipment inspection (PSI). If there is an issue with TPS92410DR, 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 TPS92410DR part is unused and in its original packaging.
Return procedure for TPS92410DR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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