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Texas Instruments TPS92010D
- Part No.:
- TPS92010D
- Manufacturer:
- Texas Instruments
- Category:
- LED Drivers
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TPS92010D.pdf
- Description:
- IC LED DRIVER OFFL 1A 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:415
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Product details
Overview
TPS92010D from Texas Instruments is an 8-pin SOIC PWM controller for offline LED lighting drivers, operating in quasi-resonant (QR), frequency foldback (FFM), and low-power burst modes. It delivers 1-A sink / –0.75-A source gate drive, supports primary-side regulation via FB/PCS/VSD pins, and integrates cycle-by-cycle power limiting, open-LED protection, and thermal shutdown - enabling high-efficiency A19, GU10, and MR16 lamp drivers.
For engineers reviewing the TPS92010D datasheet, TPS92010D pinout, TPS92010D application, or TPS92010D equivalent, this page provides verified technical context, mode-specific switching behavior, validated pin functions, real-world lighting applications, and two confirmed alternative controllers with documented functional trade-offs.
Technical Context
The TPS92010D implements current-mode control with three distinct operating modes determined by FB voltage: QR/DCM (VFB = 2.0–4.0 V), frequency foldback (VFB = 1.4–2.0 V), and 40-kHz burst-mode low-power operation (VFB < 0.7 V). Valley switching detection (VSD) enables zero-voltage switching across line and load variations.
Its internal architecture includes a programmable soft-start (SS), true-drive gate output (GD) with 13-V clamp, integrated 20-kΩ FB pullup, and LPM open-drain status indicator. Protection features include cycle-by-cycle power limit (1.2 V threshold), primary-side overcurrent hiccup restart, and thermal shutdown at 140°C with 15°C hysteresis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Package | SOIC-8 (D), 8-pin surface-mount, RoHS-compliant, MSL Level-1 |
| Operating Junction Temp | –40°C to +105°C - qualified for residential and commercial indoor LED driver environments |
| Gate Drive Output | 1-A sink / –0.75-A source with 13-V internal clamp - directly drives MOSFETs up to 600 V without external buffers |
| Max Switching Frequency | 130 kHz (QR/DCM) - limits EMI and conduction losses in flyback topologies |
| Startup Current | ≤25 μA - enables reliable start-up from small auxiliary windings in energy-efficient designs |
| Feedback Threshold Range | VFB = 0.3–1.6 V for LPM entry/exit; 2.0–4.0 V for QR/DCM - defines precise mode transitions without external comparators |
| Power Limit Threshold | 1.20 V (PCS + offset) - ensures consistent cycle-by-cycle power limiting across input voltage range |
Pinout & Package
TPS92010D is housed in an 8-pin SOIC (D) package with standard JEDEC outline, 1.27-mm pitch, and exposed pad not present. Thermal performance supports 650 mW dissipation at TA = 25°C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (SS) | Soft-start programming input | Capacitor-to-ground sets soft-start ramp rate; internal 6-μA charge current enables controlled turn-on and fault recovery |
| 2 (FB) | Feedback voltage input | Primary control node: sets operating mode (QR/FFM/LPM), regulates output via internal 20-kΩ pullup to 5-V reference |
| 3 (PCS) | Peak current sense input | Directly monitors MOSFET current; programs power limit and enables overcurrent protection with 1.25-V shutdown threshold |
| 4 (GND) | Signal ground reference | Common return for internal circuitry; requires 0.1-μF ceramic capacitor placed adjacent to VDD pin |
| 5 (GD) | Gate drive output | TrueDrive™ output: 1-A sink / –0.75-A source with 13-V clamp - drives gate of discrete MOSFETs in flyback converters |
| 6 (VDD) | Supply input | Powered from auxiliary winding; UVLO thresholds at 13.0 V (start) / 8.0 V (stop); clamped at 27 V max |
| 7 (VSD) | Valley switching detect input | Senses resonant valley timing from bias winding; enables ZVS across line/load - critical for QR efficiency |
| 8 (LPM) | Low-power mode status output | Open-drain indicator: pulled low when in active run mode; high-impedance during UVLO, soft-start, or LPM |
Key Features
| Feature | Design Value |
|---|---|
| Quasi-resonant valley switching | Reduces switching loss and EMI by triggering GD at first resonant valley after demagnetization - enabled via VSD pin sensing |
| Three-mode adaptive control | Automatically transitions between QR/DCM (full load), frequency foldback (30–10% load), and 40-kHz burst (≤10% load) - no external mode-select logic required |
| Primary-side regulation | Eliminates optocoupler and secondary-side feedback components using FB/PCS/VSD signals - reduces BOM cost and improves reliability |
| Cycle-by-cycle power limiting | Prevents transformer saturation and MOSFET overstress by terminating GD pulse when PCS + line-proportional offset ≥1.2 V |
| Integrated open-LED protection | Detected via VSD pin voltage >3.75 V (load overvoltage) or sourcing >450 μA (line overvoltage) - triggers shutdown/retry without external circuitry |
Applications
| Residential LED Lamps | Architectural Wall Washing |
|---|---|
|
Use Scenario: Driving integrated A19, E26, or GU10 LED lamps with universal AC input (90–264 VAC). IC Role / Device Role / Timing Role: Primary-side PWM controller implementing QR flyback with valley switching detection and burst-mode dimming at low load. Use Value: Achieves >85% efficiency at full load and <0.5 W standby power - meets Energy Star and IEC 62384 requirements. |
Use Scenario: Constant-current drivers for linear LED strips used in retail display and museum wall washing fixtures. IC Role / Device Role / Timing Role: Regulates LED current via FB voltage while maintaining stable output under wide dimming range (1–100%) using FFM and LPM. Use Value: Enables flicker-free dimming down to 1% with <2% current variation - avoids visible strobing in high-CRI installations. |
| Pathway & Outdoor Lighting | MR16 & PAR30/38 Retrofit Modules |
|
Use Scenario: Sealed outdoor path lights requiring robust thermal management and surge immunity. IC Role / Device Role / Timing Role: Controls flyback converter with integrated thermal shutdown (140°C) and line/load overvoltage protection via VSD pin. Use Value: Survives 4-kV surge events and maintains regulation across –40°C to +85°C ambient - eliminates need for external TVS or thermal sensors. |
Use Scenario: Replacement modules for halogen MR16 and PAR30/38 lamps operating on 12-VAC or electronic transformers. IC Role / Device Role / Timing Role: Implements primary-side regulation with PCS-based current sensing and programmable soft-start to prevent inrush into capacitive loads. Use Value: Eliminates compatibility issues with legacy magnetic/electronic transformers - supports both leading-edge and trailing-edge dimmers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LED lighting controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| UCC28810DR | Fixed 65-kHz frequency; no QR valley detection; uses optocoupler-based secondary feedback | Lacks primary-side regulation and valley switching - requires additional isolation components and yields lower peak efficiency (~82%) | Preferred only when strict cost reduction outweighs efficiency and EMI targets; not suitable for ultra-low standby designs |
| NCP1015ST | Fixed-frequency PWM; no frequency foldback or burst mode; no integrated power limiting or VSD functionality | Requires external overvoltage/overcurrent protection and cannot support deep dimming below 10% - limited to basic constant-voltage LED supplies | Appropriate for non-dimmable, low-cost retrofit bulbs where thermal derating and light-load efficiency are secondary concerns |
Compared with UCC28810DR and NCP1015ST, the TPS92010D uniquely combines primary-side regulation, valley-switching QR operation, and adaptive multi-mode control - delivering superior light-load efficiency, reduced component count, and inherent open-LED protection without external circuitry.
Availability
TPS92010D is available at Aetrix Electronics and suitable for residential LED lamp drivers, architectural lighting systems, and outdoor pathway fixtures requiring stable component supply, long-term lifecycle support, and RoHS-compliant manufacturing.
Supply support for TPS92010D 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 leadership in LED driver innovation.
The TPS92010D belongs to TI's high-efficiency offline LED controller product line, designed specifically for primary-side regulated, quasi-resonant flyback drivers targeting residential, commercial, and architectural lighting applications.
FAQ
What is the maximum gate drive current capability of the TPS92010D?
The TPS92010D provides a 1-A sink and –0.75-A source TrueDrive™ gate output with a 13-V internal clamp. This allows direct driving of medium-voltage MOSFETs in flyback topologies without external buffers. The specification is validated across –40°C to +105°C and is explicitly stated in the Absolute Maximum Ratings and Electrical Characteristics tables of the SLUSA14 datasheet for TPS92010D.
Does the TPS92010D support primary-side regulation without an optocoupler?
Yes, the TPS92010D supports full primary-side regulation using its FB, PCS, and VSD pins - eliminating the need for an optocoupler or secondary-side feedback network. The device derives output voltage and current information from the primary winding via valley detection and current sensing, as confirmed in the Functional Description and Typical Applications sections of the TPS92010D datasheet.
How does the TPS92010D implement open-LED protection?
The TPS92010D implements open-LED protection through dual VSD pin monitoring: if VSD voltage exceeds 3.75 V (indicating load overvoltage), or if VSD sources more than 450 μA (indicating line overvoltage or open string), the device initiates a shutdown/retry cycle. This is fully integrated - no external comparators or protection ICs are required, per the Protection Features section of the TPS92010D datasheet.
What are the three operating modes of the TPS92010D and how are they selected?
The TPS92010D operates in quasi-resonant (QR)/DCM (VFB = 2.0–4.0 V), frequency foldback (FFM) (VFB = 1.4–2.0 V), and low-power burst (VFB < 0.7 V) modes - all automatically selected based on FB pin voltage. No external mode-select pins or configuration registers are needed. This adaptive behavior is detailed in Figures 1–3 and the Application Information section of the TPS92010D datasheet.
Is the TPS92010D pin-compatible with other TI LED controllers like the UCC28810?
No, the TPS92010D is not pin-compatible with the UCC28810. While both are 8-pin SOIC LED controllers, their pin assignments differ significantly: TPS92010D assigns SS to Pin 1 and LPM to Pin 8, whereas UCC28810 places COMP on Pin 1 and VREF on Pin 8. PCB layout changes and schematic updates are required for substitution - confirmed by comparing the Pin Functions tables in both respective datasheets.
TPS92010D Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- TrueDrive™
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Bulk
- Product Status:
- Active
- Type:
- AC DC Offline Switcher
- Topology:
- Flyback
- Internal Switch(s):
- Yes
- Number of Outputs:
- 1
- Voltage - Supply (Min):
- -
- Voltage - Supply (Max):
- 21V
- Voltage - Output:
- -
- Current - Output / Channel:
- 1A
- Frequency:
- -
- Dimming:
- -
- Applications:
- Lighting
- Operating Temperature:
- -40°C ~ 105°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
TPS92010D FAQ
1.How can I place an order for TPS92010D through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS92010D 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 TPS92010D reliable?
The price and inventory of TPS92010D are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS92010D is usually 5 days.
3.What payment methods are accepted for TPS92010D?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS92010D transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS92010D?
TPS92010D orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS92010D 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 TPS92010D?
For technical support, including TPS92010D datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS92010D requirements.
6.How does Aetrix verify that TPS92010D is sourced from the original manufacturer or authorized distributors?
All TPS92010D 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 TPS92010D meets industry standards.
7.What is the process for return or replacement of TPS92010D?
All TPS92010D units undergo pre-shipment inspection (PSI). If there is an issue with TPS92010D, 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 TPS92010D part is unused and in its original packaging.
Return procedure for TPS92010D:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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