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Texas Instruments TPS92210D
- Part No.:
- TPS92210D
- Manufacturer:
- Texas Instruments
- Category:
- LED Drivers
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TPS92210D.pdf
- Description:
- IC LED DRIVER OFFL TRIAC 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,915
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Product details
Overview
TPS92210D from Texas Instruments is a natural power factor correction (PFC) LED lighting driver controller in an 8-pin SOIC package, implementing discontinuous conduction mode (DCM) or transition mode (TM) flyback control with cascoded MOSFET architecture. It delivers constant on-time modulation, transformer zero-energy detection for valley switching, and integrated primary-side current sensing without external sense resistors - enabling high-efficiency, TRIAC-dimmable residential LED drivers.
For engineers reviewing the TPS92210D datasheet, TPS92210D pinout, TPS92210D application, or TPS92210D equivalent, key selection criteria include its programmable overload response (latch-off vs. retry), 7.125–38 µs adjustable switching period, 0.3–3 A peak DRN current capability, and support for single-stage PFC in retrofit A19, GU10, and MR16 lighting designs.
Technical Context
The TPS92210D uses a cascoded MOSFET configuration where its internal low-voltage DRN-switch drives the source of an external high-voltage MOSFET, enabling low switching loss and eliminating reverse recovery loss in the output rectifier. Its valley-switching operation is triggered by TZE pin detection of transformer demagnetization, synchronized to a minimum 7.125 µs switching period.
Control is implemented via dual modulation: frequency modulation (FM) adjusts tSW between 7.125 µs and 38 µs based on FB current (145–195 µA range), while amplitude modulation (AM) varies peak DRN current from 0.3 A to 3 A using PCL resistor programming (24.3–100 kΩ). Overload protection is user-configurable via ROTM resistance threshold (100–150 kΩ boundary).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDD Operating Range | 9–20 V - powers internal circuitry; UVLO turn-on at 10.2 V ensures stable startup under brownout conditions |
| DRN Peak Current | 0.3–3.0 A - sets maximum primary inductor current per cycle; programmable via RPCL resistor |
| Switching Period Range | 7.125–38 µs - corresponds to 26.3–140.5 kHz frequency range; enables wide input voltage adaptation |
| TZE Threshold | 5–50 mV - detects transformer zero-energy point for valley switching; minimizes EMI and improves efficiency |
| OTM On-Time Programmability | 3.4–4.23 µs - fixed on-time set by ROTM resistor; enables natural PFC in DCM/TM flyback topologies |
| Thermal Shutdown | 165°C - protects against sustained overtemperature; 15°C hysteresis prevents oscillation near trip point |
| FB Regulation Voltage | 0.34–0.84 V - reference for optocoupler feedback; enables precise output voltage regulation |
Pinout & Package
TPS92210D is housed in an 8-pin SOIC (D) package with exposed pad not present; thermal performance characterized by θJA = 117.5°C/W on JEDEC-standard high-K board.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| FB (Pin 1) | Feedback current input | Regulated at 0.7 V; sinks 0–210 µA to command operating mode (FM/AM/LPM) and regulate output voltage |
| TZE (Pin 2) | Transformer zero-energy detector | Senses auxiliary winding voltage crossing; triggers valley switching and enables OVP via resistive divider ratio |
| PCL (Pin 3) | Peak current limit programming | Connects to GND via 24.3–100 kΩ resistor; sets peak primary current without external sense resistor |
| OTM (Pin 4) | On-time modulation input | Internally regulated at 3 V; resistor to GND programs constant on-time (3.4–4.23 µs); opto-coupler collector connection enables dimming |
| VCG (Pin 5) | Cascode gate bias supply | Provides 14 V regulated gate drive for external HV MOSFET; shunt-clamped during fault/startup |
| DRN (Pin 6) | Internal low-voltage MOSFET drain | Carries full peak primary current (≤3 A); connects to source of external HV MOSFET in cascode configuration |
| GND (Pin 7) | Power and signal return | Common return for DRN current, VDD bias, and VCG regulation; requires low-impedance PCB layout |
| VDD (Pin 8) | Bias supply input | Accepts 9–20 V; includes UVLO (10.2 V turn-on); powers internal logic and drivers |
Key Features
| Feature | Design Value |
|---|---|
| Natural PFC implementation | Enables single-stage, high-efficiency AC-DC conversion in DCM/TM without active PFC controller or boost stage |
| Valley-switching operation | Reduces switching loss and EMI by turning on MOSFET at transformer zero-current point detected via TZE pin |
| Primary-side current sensing | Eliminates external current-sense resistor via internal RDS(on) mirror; reduces BOM cost and board space |
| User-programmable fault response | ROTM resistor selects latch-off (≥150 kΩ) or retry (≤100 kΩ) behavior during sustained overload |
| TRIAC dimmer compatibility | Supports leading-edge phase-cut dimming via OTM pin interface and fast startup timing (≤240 µs starter timeout) |
Applications
| Residential LED Retrofit Lamps | TRIAC-Dimmable Downlights |
|---|---|
Use Scenario: Retrofitting incandescent A19/E27 bulbs with LED modules in existing residential wiring. IC Role / Device Role / Timing Role: Primary-side flyback controller implementing natural PFC and valley switching in DCM. Use Value: Achieves >0.9 PF and <15% THD without boost stage; supports legacy TRIAC dimmers via OTM-based dimming interface. | Use Scenario: Commercial downlight fixtures requiring smooth dimming, high reliability, and compact form factor. IC Role / Device Role / Timing Role: Constant-on-time controller regulating LED current via primary-side sensing and TZE-triggered switching. Use Value: Eliminates optocoupler secondary-side feedback loop; reduces component count and improves long-term stability. |
| Architectural Wall Sconces | Pathway & Outdoor Lighting |
Use Scenario: Low-power wall-mounted sconces with tight thermal constraints and aesthetic housing requirements. IC Role / Device Role / Timing Role: Discontinuous conduction mode controller with thermal shutdown (165°C) and low idle current (900 µA). Use Value: Maintains safe junction temperature in enclosed housings; extends lifetime via robust overtemperature protection. | Use Scenario: Outdoor-rated pathway lights exposed to wide ambient temperature swings (–40°C to +125°C). IC Role / Device Role / Timing Role: Wide-junction-temperature controller (–40°C to +125°C) with line surge ruggedness and open-LED detection. Use Value: Ensures reliable startup and operation across industrial-grade temperature range; prevents LED string failure due to open-circuit conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LED lighting driver controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| UCC28810DR | Fixed-frequency DCM controller with integrated 600-V MOSFET; no cascode architecture; lacks TZE-based valley switching | Designed for lower-cost, non-dimmable LED drivers; no TRIAC dimmer support | Choose UCC28810DR when integrated HV MOSFET simplifies layout and dimming is not required |
| NCP1015ST100T3G | Fixed-frequency PWM controller with external current sense; no natural PFC capability; no programmable fault response | Targeted at basic offline SMPS; requires external PFC stage for high PF compliance | Choose NCP1015ST100T3G only when natural PFC is unnecessary and cost-driven BOM optimization is critical |
Compared with UCC28810DR and NCP1015ST100T3G, the TPS92210D uniquely combines cascoded drive, transformer zero-energy detection, and programmable overload response - making it the only option among the three that supports TRIAC-dimmable, single-stage natural PFC designs with valley switching for highest efficiency.
Availability
TPS92210D is available at Aetrix Electronics and suitable for residential LED retrofit lamps (A19/E27), TRIAC-dimmable downlights, architectural wall sconces, and outdoor pathway lighting requiring stable component supply and long-lifecycle support.
Supply support for TPS92210D 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 company specializing in analog, embedded processing, and power management ICs, with leadership in energy-efficient power conversion solutions.
The TPS92210D belongs to TI's LED lighting driver controller product line, designed specifically for high-efficiency, single-stage natural PFC flyback topologies in residential and commercial solid-state lighting applications.
FAQ
What is the primary function of the TPS92210D in an LED lighting system?
The TPS92210D serves as a natural power factor correction (PFC) LED lighting driver controller that implements discontinuous conduction mode (DCM) or transition mode (TM) flyback control. It regulates LED current using primary-side sensing, enables valley switching via TZE detection, and supports TRIAC dimming through OTM pin modulation - all within a single-stage topology. The TPS92210D eliminates the need for external current-sense resistors and provides programmable fault responses for robust operation in retrofit A19 and downlight applications.
How does the TPS92210D achieve natural power factor correction?
The TPS92210D achieves natural PFC by operating in discontinuous conduction mode (DCM) with constant on-time control, where peak primary current scales linearly with bulk input voltage. This creates a quasi-resistive input impedance, yielding power factors above 0.9 without an active boost stage. The on-time is programmed via the OTM pin resistor (ROTM), and valley switching - triggered by TZE pin detection of transformer demagnetization - further enhances efficiency and reduces EMI. The TPS92210D thus enables single-stage, high-PF AC-DC conversion ideal for residential LED retrofit designs.
Can the TPS92210D be used with TRIAC dimmers, and how is dimming implemented?
Yes, the TPS92210D supports leading-edge TRIAC dimming through its OTM pin interface. Dimming is implemented by connecting the optocoupler collector to the OTM pin via a resistor, allowing the feedback signal to modulate the constant on-time and adjust LED current accordingly. The controller's fast startup (<240 µs) and low idle current (900 µA in LPM) ensure compatibility with legacy dimmers, while its programmable overload response prevents flicker during dimmer phase-cut transitions. This makes the TPS92210D suitable for dimmable A19, GU10, and MR16 lamp designs.
What protection features does the TPS92210D provide, and how are they configured?
The TPS92210D integrates open-LED detection (via TZE-based OVP), overcurrent protection (programmed by RPCL resistor), thermal shutdown (165°C with 15°C hysteresis), line surge ruggedness, and advanced overload handling. Overload response - either latch-off or retry mode - is configured by selecting ROTM resistor value: ≥150 kΩ enables latch-off, ≤100 kΩ enables retry. Output overvoltage protection is set by the TZE resistive divider ratio, and FB pin current thresholds define modulation ranges. These protections are fully configurable without external components, ensuring robust operation in real-world lighting environments.
What is the role of the cascoded MOSFET architecture in the TPS92210D?
The cascoded MOSFET architecture in the TPS92210D uses its internal low-voltage DRN switch to drive the source of an external high-voltage MOSFET, while the VCG pin supplies a regulated 14 V gate bias to the HV device. This configuration eliminates reverse recovery loss in the output rectifier, reduces switching losses, and enables fast turn-off independent of gate-drain charge. It also allows the TPS92210D to perform primary-side current sensing via RDS(on) mirroring - removing the need for external sense resistors. The cascode design is fundamental to the TPS92210D's high efficiency and compact BOM in single-stage LED drivers.
TPS92210D Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Bulk
- Product Status:
- Active
- Type:
- AC DC Offline Switcher
- Topology:
- Flyback
- Internal Switch(s):
- No
- Number of Outputs:
- 1
- Voltage - Supply (Min):
- 9V
- Voltage - Supply (Max):
- 20V
- Voltage - Output:
- -
- Current - Output / Channel:
- -
- Frequency:
- -
- Dimming:
- Triac
- Applications:
- Lighting
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
TPS92210D FAQ
1.How can I place an order for TPS92210D through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS92210D 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 TPS92210D reliable?
The price and inventory of TPS92210D are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS92210D is usually 5 days.
3.What payment methods are accepted for TPS92210D?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS92210D transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS92210D?
TPS92210D orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS92210D 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 TPS92210D?
For technical support, including TPS92210D datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS92210D requirements.
6.How does Aetrix verify that TPS92210D is sourced from the original manufacturer or authorized distributors?
All TPS92210D 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 TPS92210D meets industry standards.
7.What is the process for return or replacement of TPS92210D?
All TPS92210D units undergo pre-shipment inspection (PSI). If there is an issue with TPS92210D, 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 TPS92210D part is unused and in its original packaging.
Return procedure for TPS92210D:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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