My Inquiry
My Account
Texas Instruments TPS92411PDDAR
- Part No.:
- TPS92411PDDAR
- Manufacturer:
- Texas Instruments
- Category:
- LED Drivers
- Package:
- 8-PowerSOIC (0.154", 3.90mm Width)
- Datasheet:
-
TPS92411PDDAR.pdf
- Description:
- IC LED DRIVER OFFL 8SOPWRPAD
- Quantity:
- Payment:
- Shipping:
Inventory:2,500
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TPS92411PDDAR from Texas Instruments is a 100-V floating MOSFET switch IC designed for offline AC linear LED drivers in phase-dimmable luminaires. It features 2-Ω RDS(on), 200 µA quiescent current, ±4.9 µA RSNS threshold current, and integrated overvoltage protection (OVP) with 96 V falling threshold - enabling low-ripple current drive for LED stacks up to 70 W in 120 VAC systems.
For engineers reviewing the TPS92411PDDAR datasheet, TPS92411PDDAR pinout, TPS92411PDDAR application, or TPS92411PDDAR equivalent, key selection criteria include its floating VS-referenced architecture, slew-controlled switching for EMI reduction, OVP-enabled safety for open-LED fault conditions, and compatibility with discrete linear regulators or TPS92410-based designs.
Technical Context
The TPS92411PDDAR operates as a voltage-controlled floating switch referenced to its VS pin, not ground - requiring external RSET and RSNS resistors to set turn-off (VIN ≥ VRSET) and turn-on (VS ≤ VRSNS) thresholds. Its internal 100-V MOSFET enables direct shunting of LED current during AC line zero-cross transitions without inductive components.
Unlike self-contained LED drivers, it does not regulate current or voltage directly; instead, it coordinates with an external linear regulator or TPS92410 controller to achieve >0.9 power factor and <10% current ripple. The DDA (SO PowerPAD-8) package supports thermal dissipation for high-power operation up to 70+ W.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Switch Voltage Rating | 100 V max - supports direct connection to rectified 120 VAC mains (peak ~170 V) when used with blocking diode and proper OVP margin |
| RDS(on) | 2 Ω typical at 25°C - determines conduction loss and thermal rise during shunt mode; derates to ~2.5 Ω at 125°C |
| VIN Operating Range | 7.5 V to 94 V - defines functional input window for stable UVLO and OVP operation in TPS92411P variant |
| Quiescent Current (IQ) | 200 µA typical - enables ultra-low standby loss critical for Energy Star-compliant LED lamps |
| OVP Threshold | 96 V falling threshold (VIN–VS) - triggers internal switch closure to protect LEDs and capacitor during overvoltage events |
| UVLO Threshold | 6.5 V rising (VIN–VS) with 370 mV hysteresis - ensures reliable startup and prevents erratic switching near minimum line voltage |
| RSNS Threshold Current | –4.9 µA min - sets precise VS-pin voltage trip point for switch turn-on; enables accurate stack-voltage sequencing |
Pinout & Package
TPS92411PDDAR uses the SO PowerPAD (DDA) 8-pin package (4.89 mm × 3.90 mm), with exposed thermal pad electrically connected to VS and soldered to PCB for enhanced thermal performance (θJCbot = 15 °C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - RSET | Threshold reference input | Connects to VIN via resistor to set switch turn-off voltage (VRSET = 1.25 V); determines upper trip point for LED conduction |
| 2 - NC | No connect | Not internally bonded; must remain unconnected per datasheet |
| 3 - VIN | Positive supply input | Receives rectified AC voltage; powers internal circuitry and serves as reference for RSET and OVP/UVLO comparators |
| 4 - VS | Floating source / local ground | Reference node for all internal voltages; connects to LED string cathode or upstream TPS92411's DRAIN; requires low-impedance PCB routing |
| 5 - RSNS | Sense input | Monitors VS voltage relative to system ground via external resistor; triggers switch turn-on when VS drops below threshold |
| 6 - NC | No connect | Not internally bonded; must remain unconnected |
| 7 - NC | No connect | Not internally bonded; must remain unconnected |
| 8 - DRAIN | Switch output terminal | Drain of internal 100-V MOSFET; connects to LED string anode via blocking diode to enable current shunting |
Key Features
| Feature | Design Value |
|---|---|
| Slew-controlled switching | dv/dt(ON) = 1 V/µs, dv/dt(OFF) = 0.5 V/µs - minimizes high-frequency EMI generation without snubbers or shielding |
| Floating VS-referenced architecture | Enables series-stacked multi-channel LED control using multiple TPS92411PDDAR devices - each regulates its own voltage segment |
| Integrated overvoltage protection | Hardware OVP with 96 V falling threshold and hysteresis - eliminates need for external crowbar circuit in 120 VAC applications |
| Input undervoltage lockout | 6.5 V rising threshold with 370 mV hysteresis - prevents malfunction during brownout or startup transients |
| Low IQ operation | 200 µA typical bias current - reduces no-load power consumption to <15 mW at 90 V, supporting Energy Star Tier 2 requirements |
Applications
| Phase-Dimmable A19 Bulbs | Commercial Downlights |
|---|---|
|
Use Scenario: 11.5-W, 120 VAC, TRIAC-dimmable LED replacement bulb with three stacked LED strings (20 V / 40 V / 80 V). IC Role / Device Role / Timing Role: TPS92411PDDAR acts as a floating shunt switch that sequences conduction across LED stacks based on rectified line voltage thresholds. Use Value: Achieves >0.95 power factor and <5% current ripple without magnetics, meeting IEC 61000-3-2 Class C harmonic limits. |
Use Scenario: 70-W, 120 VAC recessed downlight with cascaded TPS92411PDDAR devices driving high-voltage LED arrays. IC Role / Device Role / Timing Role: Each TPS92411PDDAR controls one segment of a multi-string topology, turning ON/OFF to maintain constant current during AC half-cycles. Use Value: Enables compact, fanless design with 120 lm/W efficacy and flicker index <0.01 - compliant with IEEE 1789-2015 low-risk recommendations. |
| Industrial Panel Lighting | Outdoor Area Luminaires |
|
Use Scenario: 36-W, 230 VAC IP65-rated panel light using discrete linear regulator + TPS92411PDDAR for dimmable operation. IC Role / Device Role / Timing Role: TPS92411PDDAR provides OVP-protected shunt switching synchronized to line zero-cross, eliminating transformer dependency. Use Value: Reduces BOM count by 40% vs. flyback solution and achieves –40°C to +85°C ambient operation without derating. |
Use Scenario: 50-W, 120 VAC streetlight with dual TPS92411PDDAR devices managing parallel LED branches under varying temperature and line conditions. IC Role / Device Role / Timing Role: Coordinates current steering between branches using RSNS/RSET resistor networks calibrated for thermal drift compensation. Use Value: Maintains ±3% current regulation across –30°C to +70°C ambient and extends LED lifetime to >50,000 hours L70. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar floating-switch LED driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS92411DDAR | No overvoltage protection; 100 V absolute max rating vs. 96 V OVP threshold in TPS92411PDDAR | Suitable only where external OVP or strict LED stack voltage control (<90 V) is implemented | Select TPS92411DDAR only if cost sensitivity outweighs safety-critical OVP requirement and layout allows tight voltage margining |
| NCP3065DR2G | Non-floating buck controller with external MOSFET; requires inductor, lacks slew control and OVP | Used in isolated or non-dimmable constant-current supplies; incompatible with direct AC line shunt topology | Choose NCP3065DR2G only for DC-input or transformer-fed designs where magnetic components are acceptable |
Compared with TPS92411PDDAR, TPS92411DDAR removes hardware OVP but retains identical pinout and thermal specs, while NCP3065DR2G requires full redesign with inductor, feedback network, and separate protection circuitry - making neither a drop-in replacement.
Availability
TPS92411PDDAR is available at Aetrix Electronics and suitable for phase-dimmable LED bulbs, commercial downlights, and outdoor area luminaires requiring stable component supply, long-lifecycle assurance, and consistent parametric performance across production batches.
Supply support for TPS92411PDDAR 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 lighting control ICs and energy-efficient power solutions.
The TPS92411 product line delivers floating-switch LED driver ICs optimized for offline AC linear topologies - enabling high-power-factor, low-EMI, inductor-free LED drivers for residential, commercial, and industrial lighting.
FAQ
What is the primary function of the TPS92411PDDAR in an LED driver circuit?
The TPS92411PDDAR functions as a floating 100-V MOSFET switch that shunts LED current during AC line zero-cross intervals. It does not regulate current directly but works with an external linear regulator or TPS92410 to sequence conduction across stacked LED strings. Its role is to steer current away from LEDs to charge bypass capacitors, then redirect current through LEDs to recharge those capacitors - achieving low-ripple, high-PF operation without inductors. This behavior is fundamental to the TPS92411PDDAR's architecture and distinguishes it from conventional LED driver ICs.
How does the OVP feature in TPS92411PDDAR differ from the standard TPS92411DDAR?
The TPS92411PDDAR includes hardware overvoltage protection that activates when (VIN – VS) falls below 96 V, forcing the internal switch ON to clamp voltage and protect downstream LEDs and capacitors. The TPS92411DDAR lacks this circuit entirely and relies on external protection or strict voltage margining to stay within its 105 V absolute maximum rating. This makes TPS92411PDDAR mandatory for applications where open-LED faults or line surges could exceed 94 V - a key differentiator confirmed in TI's SLUSBQ6B datasheet Section 7.3.1.
Can TPS92411PDDAR be used with 230 VAC inputs?
Yes, TPS92411PDDAR supports 230 VAC inputs when paired with appropriate blocking diodes, RC snubbers, and LED stack voltage design - as validated in TI's Figure 13 and Section 8.2.2. The device's 100 V switch rating applies to (VIN – VS), not line-to-line voltage; with proper topology (e.g., bridge rectifier + cascode FET), it safely handles peak rectified voltages up to ~325 V. Designers must ensure the maximum (VIN – VS) across the TPS92411PDDAR never exceeds 94 V during normal operation and stays below 105 V under transient conditions.
What is the purpose of the VS pin on the TPS92411PDDAR?
The VS pin serves as the floating source reference for the internal MOSFET and all internal comparators - it is not ground. In operation, VS connects to the cathode of the LED string (or upstream device's DRAIN), establishing a local return path. All voltage thresholds (RSET, RSNS, UVLO, OVP) are measured relative to VS, enabling series stacking of multiple TPS92411PDDAR devices across high-voltage LED arrays. This floating architecture is essential to the TPS92411PDDAR's ability to manage segmented conduction without level-shifting circuitry.
Why does TPS92411PDDAR require external RSET and RSNS resistors?
TPS92411PDDAR uses external RSET and RSNS resistors to set precise, application-specific switching thresholds: RSET defines the VIN voltage at which the switch turns OFF (enabling LED conduction), while RSNS defines the VS voltage at which it turns ON (shunting current to capacitors). These resistors allow designers to calibrate trip points for exact LED stack voltages, temperature drift, and line variations - a flexibility not possible with fixed-threshold ICs. The values are calculated using TI-provided equations (SLUSBQ6B Eq. 1–2) and directly impact power factor, ripple, and dimming compatibility in the final TPS92411PDDAR implementation.
TPS92411PDDAR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-PowerSOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- AC DC Offline Switcher
- Topology:
- Flyback, Step-Down (Buck), Step-Up (Boost)
- Internal Switch(s):
- Yes
- Number of Outputs:
- 1
- Voltage - Supply (Min):
- 7.5V
- Voltage - Supply (Max):
- 94V
- Voltage - Output:
- -
- Current - Output / Channel:
- -
- Frequency:
- -
- Dimming:
- -
- Applications:
- Lighting
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SO PowerPad
TPS92411PDDAR FAQ
1.How can I place an order for TPS92411PDDAR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS92411PDDAR 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 TPS92411PDDAR reliable?
The price and inventory of TPS92411PDDAR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS92411PDDAR is usually 5 days.
3.What payment methods are accepted for TPS92411PDDAR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS92411PDDAR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS92411PDDAR?
TPS92411PDDAR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS92411PDDAR 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 TPS92411PDDAR?
For technical support, including TPS92411PDDAR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS92411PDDAR requirements.
6.How does Aetrix verify that TPS92411PDDAR is sourced from the original manufacturer or authorized distributors?
All TPS92411PDDAR 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 TPS92411PDDAR meets industry standards.
7.What is the process for return or replacement of TPS92411PDDAR?
All TPS92411PDDAR units undergo pre-shipment inspection (PSI). If there is an issue with TPS92411PDDAR, 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 TPS92411PDDAR part is unused and in its original packaging.
Return procedure for TPS92411PDDAR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPS92411PDDAR Tags
-
BCR402RE6327HTSA1
Infineon Technologies
-
BCR430UXTSA2
Infineon Technologies
-
BCR420UE6433HTMA1
Infineon Technologies
-
BCR420UE6327HTSA1
Infineon Technologies
-
BCR421UE6327HTSA1
Infineon Technologies
-
LYT1604D-TL
Power Integrations
-
HV9910CLG-G
Microchip Technology
-
CL2N8-G
Microchip Technology
-
BCR420UW6-7
Diodes Incorporated
-
BCR421UW6-7
Diodes Incorporated
-
BCR420UFD-7
Diodes Incorporated
-
BCR421UFD-7
Diodes Incorporated
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
