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Infineon Technologies TDA4862HKLA1
- Part No.:
- TDA4862HKLA1
- Manufacturer:
- Infineon Technologies
- Category:
- PFC (Power Factor Correction)
- Package:
- -
- Datasheet:
-
TDA4862HKLA1.pdf
- Description:
- POWER FACTOR CONTROLLER
- Quantity:
- Payment:
- Shipping:
Inventory:4,000
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Product details
Overview
TDA4862HKLA1 from Infineon Technologies is a bipolar PFC controller IC designed for discontinuous-conduction-mode (DCM) boost preconverters in electronic ballasts and SMPS. It delivers power factor >0.99, integrates a ±1.4% trimmed 2.5 V reference, features zero-current detection, totem-pole gate driver (±1 A peak), and undervoltage lockout with hysteresis - enabling sinusoidal line-current shaping compliant with IEC 555.
For engineers reviewing the TDA4862HKLA1 datasheet, TDA4862HKLA1 pinout, TDA4862HKLA1 application, or TDA4862HKLA1 equivalent, key selection criteria include DCM boost control architecture, integrated multiplier-based unity-PF regulation, 0.8 MHz voltage amplifier GBW, 15 µs restart timer, and P-DIP-8-1 package compatibility with legacy world-standard PFC controllers.
Technical Context
The TDA4862HKLA1 implements one-quadrant analog multiplication between rectified AC line voltage (via MULTIN) and regulated DC output voltage (via VAOUT) to generate a sinusoidal current reference. Its zero-current detector (Schmitt-trigger with 0.6 V hysteresis) enables precise DCM timing, minimizing diode reverse-recovery losses.
Internal protection includes cycle-by-cycle current limiting, fast/slow overvoltage regulation (clamping VAOUT at 5 V), VCC zener clamp, and sinking gate drive activation during undervoltage mode. The voltage amplifier provides 80° phase margin and <20 Hz loop bandwidth when configured with external integrator capacitor.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Power Factor | >0.99 - Achieved via multiplier-based instantaneous line-voltage proportional current command in DCM boost topology. |
| Voltage Reference | 2.5 V ±1.4% - Internally trimmed; sets amplifier bias and defines VAOUT operating range (2.5–4.0 V). |
| Gate Driver Output | ±1 A peak - Totem-pole structure drives MOSFET gates directly; series 4 Ω resistors suppress cross-conduction. |
| Zero Current Detection | Schmitt trigger with 0.6 V hysteresis - Ensures accurate inductor current zero-crossing sensing via auxiliary winding. |
| Start-up Current | 75 µA typical - Enables low-power initial biasing using high-value start-up resistor without auxiliary supply. |
| Amplifier GBW | 0.8 MHz - Supports stable feedback loop design with >80° phase margin for output voltage regulation. |
| Restart Timer | 15 µs - Automatically re-enables switching if GTDRV remains inactive post-zero-current event, eliminating external oscillator. |
Pinout & Package
Packaged in P-DIP-8-1 (Plastic Dual-In-Line, 8-pin, standard 0.3-inch width), the TDA4862HKLA1 uses through-hole mounting with 2.54 mm pitch and meets JEDEC MS-001 standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 VSENSE | Inverting input of voltage amplifier | Connects to output voltage divider; forms integrator with external capacitor on VAOUT for slow-loop regulation. |
| 2 VAOUT | Voltage amplifier output | Drives multiplier input; clamped at 5 V internally; pulses suppressed below 2.2 V under no-load. |
| 3 MULTIN | Multiplier second input | Accepts scaled rectified line voltage (0–4.0 V); enables instantaneous current shaping proportional to line sine. |
| 4 ISENSE | Current sense negative input | Connects to MOSFET source shunt; internal RC filter suppresses turn-on spikes; clamped at –0.3 V. |
| 5 DETIN | Zero-current detector input | Receives auxiliary winding signal; Schmitt-trigger logic initiates next switching cycle at true inductor zero crossing. |
| 6 GND | Analog/digital ground reference | Common return for all signals; requires direct 0.1 µF ceramic bypass to VCC pin. |
| 7 GTDRV | Gate drive output | Totem-pole output driving MOSFET gate; sinks current during UVLO to ensure safe shutdown. |
| 8 VCC | Positive supply input | Operates 11–20 V; internal clamp protects against overvoltage; bypassed with ≥100 nF ceramic capacitor. |
Key Features
| Feature | Design Value |
|---|---|
| Sinusoidal line-current shaping | Enables IEC 555-compliant harmonic reduction by forcing boost inductor current to track rectified line voltage. |
| Discontinuous conduction mode (DCM) control | Eliminates need for slope compensation; zero-current detection ensures fixed-frequency-like behavior with variable on-time. |
| Integrated restart timer | 15 µs timeout eliminates external oscillator component in stand-alone PFC preconverter designs. |
| Low-startup-current operation | 75 µA standby current allows use of high-value start-up resistors, reducing power loss in offline supplies. |
| Fast overvoltage protection | VAOUT clamping and multiplier gain reduction respond within one switching cycle to load dump or arcing events. |
Applications
| Electronic Ballasts | Industrial SMPS |
|---|---|
Use Scenario: Fluorescent lamp ballast with universal input (90–264 VAC) requiring low THD and high efficiency. IC Role / Device Role / Timing Role: PFC preconverter controller regulating boost output to 400 VDC while enforcing sinusoidal line current. Use Value: Meets EN 61000-3-2 Class C limits; eliminates need for bulky input filters and reduces EMI design effort. | Use Scenario: 300 W industrial switch-mode power supply for PLC I/O modules with wide-input AC-DC conversion. IC Role / Device Role / Timing Role: Active harmonic filter controlling DCM boost stage to maintain PF >0.99 across full load and line range. Use Value: Enables single-stage PFC + LLC topology; avoids derating due to harmonic heating in upstream transformers and breakers. |
| LED Drivers | UPS Input Stages |
Use Scenario: High-bay LED lighting system with constant-power dimming and universal AC input. IC Role / Device Role / Timing Role: Front-end PFC controller delivering regulated 380 VDC bus to downstream buck-boost LED current regulator. Use Value: Maintains >0.95 PF at 10% load via VAOUT pulse suppression logic, supporting deep-dimming compliance. | Use Scenario: Online UPS with bidirectional AC-DC/DC-AC stages requiring clean input current draw during battery charging. IC Role / Device Role / Timing Role: Input-stage PFC controller ensuring sinusoidal charging current regardless of battery state-of-charge. Use Value: Prevents upstream breaker tripping caused by harmonic-rich charging currents in multi-unit installations. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar PFC controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ICE1PCS01G | CMOS-based, continuous conduction mode (CCM) control; higher integration (built-in HV start-up); no internal zero-current detector. | Requires external ZCD circuitry for DCM operation; optimized for higher-power (>500 W) CCM designs with lower THD at light load. | Select for new CCM designs needing higher efficiency above 25% load; not drop-in for TDA4862HKLA1 DCM layouts. |
| TDA4863 | Pin-compatible successor with improved ESD rating (4 kV HBM), enhanced VCC clamp (22 V), and tighter VAOUT offset (±5 mV). | Direct replacement with identical DCM functionality and layout; supports same ballast/SMPS applications with extended reliability. | Prefer for new designs requiring higher robustness; retains full schematic and PCB compatibility with TDA4862HKLA1. |
Compared with ICE1PCS01G and TDA4863, the TDA4862HKLA1 offers proven DCM-specific architecture with integrated zero-current detection and minimal external components, making it optimal for cost-sensitive, medium-power (<300 W) ballast and SMPS where layout simplicity and IEC 555 compliance are primary.
Availability
TDA4862HKLA1 is available at Aetrix Electronics and suitable for electronic ballasts, industrial SMPS, LED drivers, and UPS input stages requiring stable component supply and long-term obsolescence management.
Supply support for TDA4862HKLA1 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 TDA4862HKLA1 belongs to Infineon's legacy bipolar PFC controller product line, engineered specifically for cost-effective, high-reliability DCM boost preconverters in lighting and industrial power supplies.
FAQ
What is the recommended external capacitor value between VSENSE and VAOUT?
A 10 nF to 100 nF ceramic capacitor is typically used to form the integrator with the voltage amplifier. This sets loop bandwidth below 20 Hz for stable output voltage regulation across line cycles. Larger values increase phase margin but reduce transient response; smaller values improve dynamics but risk instability. Layout must minimize trace inductance between pins 1 and 2.
Can TDA4862HKLA1 operate with 230 VAC nominal input without hardware changes?
Yes - the TDA4862HKLA1 regulates boost output voltage independently of input line voltage. With appropriate resistor dividers on VSENSE and MULTIN, it supports universal input (90–264 VAC) without switches or jumper settings. Output voltage is set by the VSENSE divider ratio, not line voltage.
How does the zero-current detector interface with the boost inductor auxiliary winding?
DETIN connects to an auxiliary winding wound on the same core as the boost inductor, with polarity such that voltage polarity reverses at inductor current zero crossing. An external series resistor (typically 10–47 Ω) limits current into the internal 5 V clamp. No external comparator or optocoupler is needed - the internal Schmitt trigger directly drives timing logic.
Is there a minimum load requirement to maintain regulation stability?
No minimum load is required. When output load drops near zero, VAOUT falls below 2.2 V and GTDRV pulses are fully suppressed - entering a burst-mode-like state. Regulation resumes immediately upon load reappearance. This behavior prevents overvoltage during no-load or light-load conditions without external circuitry.
TDA4862HKLA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Mode:
- -
- Frequency - Switching:
- -
- Current - Startup:
- -
- Voltage - Supply:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
TDA4862HKLA1 FAQ
1.How can I place an order for TDA4862HKLA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TDA4862HKLA1 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 TDA4862HKLA1 reliable?
The price and inventory of TDA4862HKLA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TDA4862HKLA1 is usually 5 days.
3.What payment methods are accepted for TDA4862HKLA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TDA4862HKLA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TDA4862HKLA1?
TDA4862HKLA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TDA4862HKLA1 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 TDA4862HKLA1?
For technical support, including TDA4862HKLA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TDA4862HKLA1 requirements.
6.How does Aetrix verify that TDA4862HKLA1 is sourced from the original manufacturer or authorized distributors?
All TDA4862HKLA1 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 TDA4862HKLA1 meets industry standards.
7.What is the process for return or replacement of TDA4862HKLA1?
All TDA4862HKLA1 units undergo pre-shipment inspection (PSI). If there is an issue with TDA4862HKLA1, 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 TDA4862HKLA1 part is unused and in its original packaging.
Return procedure for TDA4862HKLA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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