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Texas Instruments TPS92210DR
- Part No.:
- TPS92210DR
- Manufacturer:
- Texas Instruments
- Category:
- LED Drivers
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TPS92210DR.pdf
- Description:
- IC LED DRIVER OFFL TRIAC 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,062
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Product details
Overview
TPS92210DR from Texas Instruments is a natural power factor correction (PFC) LED lighting driver controller in an 8-pin SOIC package, featuring cascoded MOSFET architecture, valley-switching operation via transformer zero-energy detection (TZE), and programmable constant on-time control. It delivers up to 3 A peak DRN current, supports TRIAC-dimmable residential LED retrofit designs (A19, GU10, MR16), and operates across –40°C to 125°C junction temperature.
For engineers reviewing the TPS92210DR datasheet, TPS92210DR pinout, TPS92210DR application, or TPS92210DR equivalent, key selection considerations include its integrated primary-side current sensing (no external sense resistor), user-configurable overload response (latch-off vs. retry mode), valley-switching timing accuracy (tWAIT(TZE) = 2.4 µs typ), and compatibility with single-stage flyback topologies for high-efficiency AC/DC LED drivers.
Technical Context
The TPS92210DR implements a constant-on-time (COT) PWM modulation algorithm that varies switching frequency and primary peak current while maintaining discontinuous conduction mode (DCM) or transition mode (TM) across input line and load conditions. Its cascode architecture uses an internal 90 mΩ low-voltage MOSFET (DRN-to-GND path) driven by a fixed VCG bias voltage (14 V regulated) to control an external high-voltage MOSFET.
Transformer zero-energy detection at the TZE pin enables valley switching with 2.4 µs wait time after zero-crossing detection (TZE(TH) = 5–50 mV), reducing EMI and improving efficiency. Overload protection is programmed via ROTM (100–150 kΩ threshold), and open-LED fault detection is implemented through output overvoltage monitoring at TZE (OVP threshold = 5.0 V).
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 |
| DRN Peak Current | 3.0 A max - sets maximum primary-side energy transfer per cycle; enables >30 W LED driver designs |
| Switching Frequency Range | 26–140 kHz - determined by tSW(HF) = 7.5 µs and tSW(LF) = 34 µs; supports DCM/TM operation across universal AC input |
| TZE Zero-Crossing Threshold | 5–50 mV - precise low-level detection enables reliable valley switching; minimizes turn-on loss in external HV MOSFET |
| PCL Programming Range | 24.3–100 kΩ - sets peak primary current via internal current mirror; eliminates need for external sense resistor |
| OTM On-Time Modulation | ROTM = 76–383 kΩ - configures constant on-time (3.8 µs typ) and selects latch-off vs. retry fault response |
| Thermal Shutdown | 165°C with 15°C hysteresis - protects against sustained overtemperature; ensures safe recovery before restart |
Pinout & Package
TPS92210DR 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 high-K board. Pin functions are validated per TI SLUS989B Rev. September 2012.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| FB (Pin 1) | Feedback current input | Regulated at 0.7 V; IFB = 10 µA sets operating mode; connects to optocoupler emitter for isolated regulation |
| TZE (Pin 2) | Transformer zero-energy detector | Detects demagnetization via auxiliary winding divider; triggers valley switching and enables OVP (5.0 V threshold) |
| PCL (Pin 3) | Peak current limit programming | Resistor to GND (24.3–100 kΩ) sets IPEAK(pri); internal current mirror replaces external sense resistor |
| OTM (Pin 4) | On-time modulation & fault control | ROTM resistor programs constant on-time (3.8 µs); optocoupler collector connection enables dimming and fault latching |
| VCG (Pin 5) | Cascode gate bias supply | 14 V shunt-regulated output; drives external HV MOSFET gate; requires 33–200 nF ceramic bypass capacitor |
| DRN (Pin 6) | Internal low-V MOSFET drain | Carries full peak primary current (≤3 A); connects to source of external HV MOSFET; RDS(on) = 90 mΩ typ |
| GND (Pin 7) | Power and signal reference | Common return for DRN current, VDD bias, VCG regulation, and all analog circuits; must be quiet ground plane |
| VDD (Pin 8) | Bias supply input | 9–20 V input; UVLO hysteresis = 2.2 V; internal VDD switch enables startup from DRN during initial charge |
Key Features
| Feature | Design Value |
|---|---|
| Fully integrated primary-side current sensing | Eliminates external sense resistor via internal current mirror; reduces BOM cost and PCB area |
| Valley-switching operation | Enabled by TZE pin with 2.4 µs wait time; reduces switching loss and EMI in external HV MOSFET |
| Programmable overload response | ROTM resistor selects latch-off (≥150 kΩ) or retry (≤100 kΩ) mode; supports surge-tolerant LED driver designs |
| Natural PFC in single-stage flyback | Constant on-time control + DCM operation yields >0.9 PF without active PFC stage; simplifies AC/DC architecture |
| Open-LED protection | Implemented via TZE-based OVP (5.0 V threshold); prevents overvoltage damage during LED string failure |
Applications
| TRIAC-Dimmable A19 Bulb Driver | GU10/MR16 Retrofit Driver |
|---|---|
|
Use Scenario: Residential LED replacement bulb with leading-edge TRIAC dimmer compatibility and universal AC input (90–265 VAC). IC Role / Device Role / Timing Role: Primary-side controller implementing constant-on-time DCM flyback with valley switching and optocoupler feedback. Use Value: Achieves >0.9 power factor and <15% THD without active PFC; enables compact, thermally constrained bulb form factor. |
Use Scenario: Low-profile directional LED lamp (GU10, MR16) requiring high efficiency (>85%), dimming compatibility, and robust surge immunity. IC Role / Device Role / Timing Role: Cascode-based controller managing external HV MOSFET with TZE-synchronized turn-on and PCL-programmed current limiting. Use Value: Eliminates current sense resistor and secondary-side feedback components; reduces bill-of-materials and improves reliability. |
| Architectural Wall Sconce Driver | Commercial Troffer Downlight |
|
Use Scenario: Indoor architectural lighting fixture with long lifetime requirement, thermal management constraints, and flicker-free dimming. IC Role / Device Role / Timing Role: Feedback-controlled COT modulator using FB pin current and OTM pin for dimming interface and fault handling. Use Value: Supports smooth 1–10 V or PWM dimming integration; thermal shutdown (165°C) ensures safety in enclosed fixtures. |
Use Scenario: Office troffer with multi-string LED load, EMI compliance requirements, and need for production scalability. IC Role / Device Role / Timing Role: Single-stage PFC LED driver IC enabling DCM operation with programmable tSW range (26–140 kHz). Use Value: Meets EN55015 Class B conducted EMI limits via valley switching and frequency modulation; supports volume manufacturing with SOIC-8 footprint. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LED driver controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| UCC28810DR | Fixed-frequency CCM flyback controller with active PFC; no valley switching; requires external current sense resistor | Targets higher-power (>50 W), lower-THD commercial lighting where CCM operation is preferred | Choose UCC28810DR when active PFC and tighter THD control are required; avoid for space-constrained retrofit bulbs |
| NCP1015ST | Fixed-frequency DCM flyback controller; no integrated PFC; no TZE or valley switching; simpler FB regulation only | Suitable for non-dimmable, low-cost LED tubes or signage where PF > 0.7 is acceptable | Choose NCP1015ST for cost-sensitive, non-PFC applications; lacks overload programmability and natural PFC capability of TPS92210DR |
Compared with UCC28810DR and NCP1015ST, the TPS92210DR uniquely combines natural PFC, valley switching, and resistor-programmable fault response in a single SOIC-8 package-enabling compact, high-efficiency, dimmable LED drivers without external sense resistors or complex compensation networks.
Availability
TPS92210DR is available at Aetrix Electronics and suitable for TRIAC-dimmable LED bulb designs, architectural wall sconces, and commercial troffer downlights requiring stable component supply, long-lifecycle support, and consistent parametric performance across production batches.
Supply support for TPS92210DR 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 TPS92210DR belongs to TI's Natural PFC LED Lighting Controller product line, engineered specifically for single-stage, high-efficiency, dimmable AC/DC LED drivers targeting residential and commercial retrofit applications.
FAQ
What is the recommended startup resistor value for TPS92210DR?
The TPS92210DR startup resistor (RSU) is typically ~10 MΩ to provide ~6 µA bleed current from the bulk AC line. This charges the VCG capacitor to initiate bias; exact value depends on input voltage range and desired startup time. TI recommends verifying RSU selection using the VCG clamp voltage (16 V during startup) and minimum VDD turn-on threshold (10.2 V) to ensure reliable cold-start behavior across –40°C to 125°C.
Does TPS92210DR require an external current sense resistor?
No, the TPS92210DR does not require an external current sense resistor. It uses an internal current mirror to scale the primary current flowing through the DRN pin (RDS(on) = 90 mΩ typ) and compare it against the PCL pin current. The peak primary current is set by connecting a resistor (24.3–100 kΩ) from PCL to GND-eliminating power loss, board space, and cost associated with discrete sense resistors.
How is overload protection configured on TPS92210DR?
Overload protection on the TPS92210DR is configured using the ROTM resistor connected from OTM to GND. Values below 100 kΩ select retry mode (750 ms delay); values above 150 kΩ select latch-off mode. The threshold is 100–150 kΩ. This allows designers to match fault response to system requirements-retry for transient surges, latch-off for sustained overloads-without firmware or external logic.
What is the function of the TZE pin on TPS92210DR?
The TZE pin on the TPS92210DR detects transformer demagnetization by monitoring the auxiliary winding voltage through a resistive divider. It triggers valley switching with a 2.4 µs wait time after zero-crossing (TZE(TH) = 5–50 mV), minimizing switching loss. It also serves as the input for output overvoltage protection, with a fixed 5.0 V threshold that latches faults if exceeded-providing dual functionality in one pin.
Can TPS92210DR support both constant-on-time and peak-current-mode control?
Yes, the TPS92210DR supports both modes. Constant-on-time control is enabled by connecting a resistor (ROTM) to the OTM pin; peak-current-mode control uses the FB pin to inject error current into the modulator. The device automatically adapts its switching behavior-frequency modulation in COT mode, amplitude modulation in peak-current mode-based on external component configuration and feedback signal routing.
TPS92210DR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- 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
TPS92210DR FAQ
1.How can I place an order for TPS92210DR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS92210DR 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 TPS92210DR reliable?
The price and inventory of TPS92210DR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS92210DR is usually 5 days.
3.What payment methods are accepted for TPS92210DR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS92210DR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS92210DR?
TPS92210DR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS92210DR 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 TPS92210DR?
For technical support, including TPS92210DR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS92210DR requirements.
6.How does Aetrix verify that TPS92210DR is sourced from the original manufacturer or authorized distributors?
All TPS92210DR 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 TPS92210DR meets industry standards.
7.What is the process for return or replacement of TPS92210DR?
All TPS92210DR units undergo pre-shipment inspection (PSI). If there is an issue with TPS92210DR, 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 TPS92210DR part is unused and in its original packaging.
Return procedure for TPS92210DR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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