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Infineon Technologies TDA4863GXUMA2
- Part No.:
- TDA4863GXUMA2
- Manufacturer:
- Infineon Technologies
- Category:
- PFC (Power Factor Correction)
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TDA4863GXUMA2.pdf
- Description:
- IC PFC CTRLR DCM 8DSO
- Quantity:
- Payment:
- Shipping:
Inventory:1,574
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Product details
Overview
TDA4863GXUMA2 from Infineon Technologies is a power factor correction (PFC) boost controller IC designed for active harmonic filtering in universal-input AC-DC front-ends. It delivers near-unity power factor (>0.99), <5% THD at 110 W output, and operates in discontinuous conduction mode (DCM) with zero-current detection. Used in offline SMPS for LED drivers, industrial power supplies, and consumer electronics with strict IEC 61000-3-2 compliance requirements.
For engineers reviewing the TDA4863GXUMA2 datasheet, TDA4863GXUMA2 pinout, TDA4863GXUMA2 application, or TDA4863GXUMA2 equivalent, key selection criteria include its 8-pin DSO package, integrated zero-current detector, 2.2 V VAOUT inhibit threshold, 12.5 V VCC turn-on threshold, and internal leading-edge blanking for MOSFET current-sense reliability.
Technical Context
The TDA4863GXUMA2 implements a transconductance voltage amplifier feeding a two-quadrant analog multiplier, where MULTIN accepts rectified line voltage and VSENSE monitors regulated DC bus voltage. Its internal RS flip-flop controls gate drive timing based on zero-current detection (DETIN) and current-sense comparator output.
Functional blocks include an undervoltage lockout (UVLO) with 10 V turn-on/8.5 V turn-off hysteresis, overvoltage regulator (OVR) clamping VAOUT at 5.4 V, and totem-pole GTDRV output capable of sourcing/sinking 200 mA with active shutdown. The 2 µs leading-edge blanking (LEB) suppresses switching noise on ISENSE.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Turn-on Threshold | 12.5 V - ensures reliable startup after bulk capacitor charging |
| VAOUT Inhibit Threshold | 2.2 V - disables GTDRV to prevent MOSFET overvoltage during regulation loss |
| THD @ 110 W | <5% - meets IEC 61000-3-2 Class C for lighting equipment |
| Zero Current Detection | Dedicated DETIN pin - enables precise DCM operation without external circuitry |
| LEB Duration | 2 µs - suppresses MOSFET turn-on spikes on ISENSE without delaying control loop |
| GTDRV Sink/Source | 200 mA - directly drives medium-power MOSFET gates without buffer stage |
| OVR Clamp Voltage | 5.4 V - protects multiplier output and prevents VAOUT runaway during overvoltage events |
Pinout & Package
Package: PG-DSO-8-3 (8-pin SOIC, 150 mil width, RoHS-compliant lead plating).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 VSENSE | Inverting input of transconductance error amplifier | Connects to DC bus via resistive divider; sets output voltage regulation point |
| 2 VAOUT | Error amplifier output / multiplier input | Integrator node clamped at 5 V; inhibits GTDRV if <2.2 V |
| 3 MULTIN | Multiplier second input | Accepts scaled rectified line voltage to shape sinusoidal input current |
| 4 ISENSE | MOSFET source current sense input | Internally clamped at −0.3 V; LEB suppresses turn-on spikes |
| 5 DETIN | Zero-current detector input | Monitors auxiliary winding voltage to detect inductor current zero-crossing |
| 6 GND | Analog and power ground reference | Common return for all internal circuits and external sense components |
| 7 GTDRV | Gate driver output | Totem-pole output with active low shutdown; drives MOSFET gate directly |
| 8 VCC | Positive supply input | UVLO-controlled supply; requires 100 nF ceramic + bulk electrolytic decoupling |
Key Features
| Feature | Design Value |
|---|---|
| Sinusoidal line-current shaping | Enables >0.99 power factor without external current programming circuitry |
| Integrated zero-current detector | Eliminates need for external comparator and timing components in DCM PFC designs |
| Active gate-driver shutdown | Forces GTDRV low during UVLO or fault conditions, preventing unintended MOSFET conduction |
| Internal leading-edge blanking | 2 µs fixed-duration blanking on ISENSE avoids false current-limit triggering at switch turn-on |
| Output overvoltage protection | Clamps VAOUT at 5.4 V to prevent uncontrolled multiplier output and MOSFET overvoltage |
Applications
| LED Driver Front-End | Industrial AC-DC Power Supply |
|---|---|
Use Scenario: 100–240 VAC input LED driver for street lighting meeting IEC 61000-3-2 Class C. IC Role / Device Role / Timing Role: Active PFC controller regulating boost stage to draw sinusoidal current and maintain 400 V DC bus. Use Value: Achieves <5% THD at full load and maintains >0.98 PF down to 20% load, reducing upstream filter size and EMI. | Use Scenario: 300 W industrial power supply with universal AC input and hold-up time requirement. IC Role / Device Role / Timing Role: DCM boost controller managing input current waveform and DC bus regulation before main PWM stage. Use Value: Enables compact magnetics design via DCM operation and eliminates need for external OVP/UVLO comparators. |
| Consumer Audio Power Supply | Office Equipment SMPS |
Use Scenario: High-fidelity audio amplifier power supply requiring low-noise, low-THD AC-DC conversion. IC Role / Device Role / Timing Role: PFC front-end controller ensuring clean, sinusoidal line draw while minimizing audible switching noise coupling. Use Value: Internal LEB and 2.2 V VAOUT inhibit prevent current-sense false triggering, preserving dynamic response during transient loads. | Use Scenario: Laser printer power supply needing robust startup under cold-cranking and brownout conditions. IC Role / Device Role / Timing Role: Primary PFC controller with UVLO hysteresis (10 V/8.5 V) and low-startup-current design. Use Value: 12.5 V VCC turn-on threshold ensures reliable initiation after bulk capacitor reaches regulation, avoiding repeated restart attempts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar power factor controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ICE2PCS01 | Fixed-frequency CCM controller with integrated 650 V MOSFET; no zero-current detection | Requires continuous conduction mode design; higher EMI, larger boost inductor | Select when board space allows larger magnetics and system prioritizes cost over THD performance |
| UCC28019 | 8-pin DIP PFC controller with similar DCM architecture but 1.5 V ISENSE threshold vs. TDA4863's 1.0 V | Higher current-sense loss at light load; requires recalibration of sense resistor network | Select when existing layout uses DIP-8 footprint and design tolerates ~0.5% higher THD at 20% load |
Compared with ICE2PCS01 and UCC28019, the TDA4863GXUMA2 provides superior THD performance in universal-input DCM applications due to its dedicated DETIN pin, lower ISENSE threshold (1.0 V), and tighter VAOUT regulation window-enabling smaller EMI filters and higher efficiency below 30% load.
Availability
TDA4863GXUMA2 is available at Aetrix Electronics and suitable for LED driver front-ends, industrial AC-DC power supplies, and office equipment SMPS requiring stable component supply and long-term lifecycle support.
Supply support for TDA4863GXUMA2 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
Infineon Technologies AG is a German semiconductor manufacturer specializing in power management, automotive, and industrial control ICs, with global R&D and manufacturing infrastructure.
The TDA4863 belongs to Infineon's legacy PFC controller product line, engineered specifically for cost-sensitive, high-efficiency DCM boost converters in universal-input offline power supplies.
FAQ
What is the minimum recommended VCC bypass capacitance for stable TDA4863GXUMA2 operation?
A 100 nF ceramic capacitor must be placed directly between VCC and GND, adjacent to the IC. An additional bulk electrolytic capacitor (≥10 µF) is required to sustain startup and handle low-frequency ripple. The ceramic capacitor absorbs fast current spikes from GTDRV switching, while the electrolytic maintains VCC above the 8.5 V UVLO turn-off threshold during line dips.
How does the TDA4863GXUMA2 achieve near-unity power factor without digital control?
It uses an analog transconductance error amplifier and two-quadrant multiplier to multiply the scaled rectified line voltage (MULTIN) with the error-amplified DC bus voltage (VAOUT). This generates a reference current waveform that is inherently sinusoidal and in-phase with the line voltage, forcing the boost inductor current to follow it via peak-current-mode control and zero-current detection.
Can the TDA4863GXUMA2 be used in continuous conduction mode (CCM)?
No - the IC is architected exclusively for discontinuous conduction mode (DCM) operation. Its zero-current detector (DETIN pin) and internal timing logic assume inductor current fully resets each cycle. Attempting CCM operation results in erratic GTDRV timing, loss of regulation, and potential overvoltage on the boost MOSFET due to missing valley-switching control.
What is the purpose of the 2.2 V VAOUT inhibit threshold?
This threshold disables GTDRV output when VAOUT falls below 2.2 V, indicating loss of DC bus regulation - such as during output short-circuit or severe overvoltage. It prevents uncontrolled MOSFET conduction that could cause thermal runaway or damage to the boost diode and output capacitor, acting as a fast analog fault response independent of the restart timer.
TDA4863GXUMA2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Mode:
- Discontinuous Conduction (DCM)
- Frequency - Switching:
- -
- Current - Startup:
- 20 µA
- Voltage - Supply:
- 12.5V ~ 20V
- Operating Temperature:
- -40°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PG-DSO-8-3
TDA4863GXUMA2 FAQ
1.How can I place an order for TDA4863GXUMA2 through Aetrix?
Please submit a Request for Quotation (RFQ) for TDA4863GXUMA2 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 TDA4863GXUMA2 reliable?
The price and inventory of TDA4863GXUMA2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TDA4863GXUMA2 is usually 5 days.
3.What payment methods are accepted for TDA4863GXUMA2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TDA4863GXUMA2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TDA4863GXUMA2?
TDA4863GXUMA2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TDA4863GXUMA2 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 TDA4863GXUMA2?
For technical support, including TDA4863GXUMA2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TDA4863GXUMA2 requirements.
6.How does Aetrix verify that TDA4863GXUMA2 is sourced from the original manufacturer or authorized distributors?
All TDA4863GXUMA2 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 TDA4863GXUMA2 meets industry standards.
7.What is the process for return or replacement of TDA4863GXUMA2?
All TDA4863GXUMA2 units undergo pre-shipment inspection (PSI). If there is an issue with TDA4863GXUMA2, 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 TDA4863GXUMA2 part is unused and in its original packaging.
Return procedure for TDA4863GXUMA2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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