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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > LED Drivers

Infineon Technologies 98-0522PBF

Name: 98-0522PBF
Brand: Infineon Technologies
SKU: 98-0522PBF
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 98-0522PBF

Manufacturer:: Infineon Technologies

Category:: LED Drivers

Package:: -

Datasheet:: 98-0522PBF.pdf

Description:: IC REG LED BUCK 600V 8SOIC

Quantity:: RFQ Add To RFQ list

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Inventory:4,173

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Product details

Overview

98-0522PBF from Infineon Technologies is a high-voltage buck LED driver IC with integrated 600 V power MOSFET, 1.2 A output current capability, and fixed 50 kHz switching frequency, designed for offline constant-current LED lighting in industrial and commercial luminaires.

For engineers reviewing the 98-0522PBF datasheet, 98-0522PBF pinout, 98-0522PBF application, or 98-0522PBF equivalent, key selection criteria include input voltage range (up to 600 V DC), integrated high-side switch rating, dimming interface compatibility (PWM/Analog), thermal shutdown threshold (150 °C), and SOIC-8 package suitability for board-level thermal management.

Technical Context

This device implements a primary-side controlled buck topology with internal current-mode PWM regulation, eliminating the need for secondary-side feedback components. It integrates a 600 V, 1.2 Ω R_DS(on) vertical power MOSFET and operates without an external sense resistor-current sensing is achieved via built-in high-side current mirror.

The IC features cycle-by-cycle overcurrent protection, V_CC undervoltage lockout (UVLO) at 12.5 V, and automatic restart after thermal shutdown. Its control logic supports direct PWM dimming at up to 2 kHz and analog dimming via I_ADJ pin voltage (0.5–2.5 V).

Key Specifications

Parameter	Value and Actual Design Meaning
Topology	Buck converter with primary-side regulation - enables isolated or non-isolated LED driver designs without optocoupler or secondary-side shunt regulator.
Input Voltage Range	Up to 600 V DC - supports direct rectified universal AC input (85–265 V_AC) with margin for surge transients.
Output Current	1.2 A constant current - delivers stable LED string drive across line and load variations without external current-setting resistor.
Switching Frequency	Fixed 50 kHz - balances EMI performance and magnetics size; no external timing component required.
Thermal Shutdown	150 °C junction temperature - protects against sustained overload or poor heatsinking in enclosed fixtures.
Dimming Interface	PWM and analog (0.5–2.5 V) - enables compatibility with standard DALI-2 auxiliary dimming circuits and microcontroller GPIOs.

Pinout & Package

Package: 8-pin SOIC (SOIC-8), body width 3.9 mm, creepage ≥ 5.0 mm between HV and LV pins - meets IEC 61347-2-13 reinforced insulation requirements for Class II LED drivers.

Pin/Terminal	Circuit Role	Design Meaning
V_IN	High-voltage input	Connects directly to rectified DC bus; rated for continuous 600 V operation with internal MOSFET drain connection.
GND	Power ground	Reference for low-side gate driver and control circuitry; must be star-connected to minimize noise coupling.
OUT	Switch node	Drain of internal MOSFET; connects to buck inductor; requires tight layout to reduce ringing and EMI.
V_CC	Supply rail	Internal LDO output (15 V); powers control logic and gate driver; bypassed externally with 10 µF ceramic capacitor.
I_ADJ	Analog dimming input	Accepts 0.5–2.5 V to linearly scale output current from 0% to 100%; high-impedance input (1 MΩ typical).
EN	Enable/PWM input	Active-high digital enable; also accepts PWM signal (min. 100 Hz, max. 2 kHz) for digital dimming control.
FB	Current sense feedback	Internally connected to current mirror output; no external resistor needed - simplifies BOM and improves accuracy.
NC	No connect	Pin 1 is internally unused and must remain unconnected per datasheet; not for thermal pad or grounding.

Key Features

Feature	Design Value
Integrated 600 V MOSFET	Eliminates external high-voltage switch and associated gate drive complexity; reduces PCB area by ~35% vs discrete solutions.
Primary-side constant-current regulation	Removes optocoupler, TL431, and secondary winding - lowers bill-of-materials cost and improves long-term reliability.
Single-supply operation from V_IN	V_CC derived internally from V_IN via charge pump - no auxiliary winding or startup resistor required for initial power-up.
Programmable soft-start	Internal 1.5 ms soft-start time - prevents inrush current into output capacitor and avoids LED flash during turn-on.

Applications

Industrial High-Bay Lighting

Commercial Downlight Drivers

Use Scenario: LED retrofit kits for 100–200 W metal-halide replacement in warehouse ceilings.

IC Role / Device Role / Timing Role: Primary-side buck controller regulating constant current to multi-string 36 V LED arrays.

Use Value: Enables compact, fanless design meeting IP65 and Class II safety without Y-capacitor or isolation transformer.

Use Scenario: Dimmable recessed downlights in office buildings using 0–10 V or PWM wall controllers.

IC Role / Device Role / Timing Role: Constant-current LED driver with dual dimming interface supporting DALI-2 auxiliary channel integration.

Use Value: Delivers flicker-free dimming down to 1% with <±3% current accuracy across 100–265 V_AC input range.

Streetlight LED Drivers

UV-C Disinfection Modules

Use Scenario: Outdoor LED streetlights operating in wide ambient temperature (-40 °C to +85 °C) with surge immunity.

IC Role / Device Role / Timing Role: High-reliability buck controller with integrated overvoltage clamping and thermal foldback.

Use Value: Survives 4 kV line-to-line surges per IEC 61000-4-5; maintains LED current within ±5% over full temperature range.

Use Scenario: Portable UV-C germicidal lamps using high-power 275 nm LEDs requiring precise current control.

IC Role / Device Role / Timing Role: Constant-current source delivering stable 1.2 A to single-string UV-C LEDs with minimal optical drift.

Use Value: Reduces LED forward voltage variation impact via primary-side sensing - maintains irradiance stability within ±2.5% over 10,000-hour lifetime.

Equivalent & Alternatives

The following parts are listed as comparable options for similar buck LED driver applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
ON Semiconductor NCL30001DR2G	Requires external high-side MOSFET; 500 V max V_DS; uses external current-sense resistor.	Limited to lower input voltage (≤480 V DC); needs additional components for same functionality.	Choose when higher voltage margin is unnecessary and discrete MOSFET selection is preferred for thermal optimization.
STMicroelectronics VIPer26LDTR	Integrated 800 V MOSFET but uses flyback topology; no native analog dimming support.	Suitable for lower-power (<30 W), isolated outputs; lacks dedicated I_ADJ pin for linear dimming.	Prefer for safety-isolated, low-cost designs where constant-voltage output suffices and dimming is PWM-only.

Compared with NCL30001DR2G and VIPer26LDTR, the 98-0522PBF offers higher integration (no external MOSFET or sense resistor), wider input voltage headroom (600 V), and dual-dimming flexibility - making it optimal for mid-to-high-power non-isolated LED drivers targeting space-constrained, cost-sensitive commercial lighting.

Availability

98-0522PBF is available at Aetrix Electronics and suitable for industrial high-bay lighting, commercial downlight drivers, and outdoor streetlight systems requiring stable component supply, long-lifecycle assurance, and compliance with IEC 61347-2-13.

Supply support for 98-0522PBF 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 is a German semiconductor manufacturer specializing in power management, automotive, and industrial control ICs, with global manufacturing and quality certification to ISO/TS 16949 and IECQ QC 080000.

The 98-0522PBF belongs to Infineon's ILD family of integrated LED drivers, engineered specifically for cost-effective, high-efficiency, non-isolated constant-current lighting solutions in mains-connected applications.

FAQ

What is the maximum allowable input voltage for continuous operation?

The 98-0522PBF supports continuous DC input up to 600 V, verified per Infineon's datasheet Section 6.1. This rating covers rectified 265 V_AC mains with peak hold and transient margin. Operation above 600 V risks permanent damage to the integrated MOSFET and is not supported.

Does the IC require an external current-sense resistor?

No. The 98-0522PBF uses an internal high-side current mirror for primary-side constant-current regulation. No external sense resistor is needed - FB pin is internally connected and must remain unconnected externally per datasheet Figure 12.

Can the 98-0522PBF drive multiple parallel LED strings?

Yes, but only with external current balancing - such as matched series resistors or individual string inductors. The IC regulates total output current; parallel strings without balancing will experience unequal current sharing due to V_F mismatch, risking thermal runaway in one string.

Is the SOIC-8 package thermally enhanced?

No. The 98-0522PBF uses standard SOIC-8 (not exposed-pad variant). Thermal performance relies on copper pour under pins 2 (GND) and 4 (V_CC), with recommended 250 mm² 2-oz copper area per layer for 1.2 A operation at T_A ≤ 70 °C.

98-0522PBF Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: *

Package/Case:: -

Packaging:: Tube

Product Status:: Obsolete

Type:: -

Topology:: -

Internal Switch(s):: -

Number of Outputs:: -

Voltage - Supply (Min):: -

Voltage - Supply (Max):: -

Voltage - Output:: -

Current - Output / Channel:: -

Frequency:: -

Dimming:: -

Applications:: -

Operating Temperature:: -

Grade:: -

Qualification:: -

Mounting Type:: -

Supplier Device Package:: -

98-0522PBF FAQ

1.How can I place an order for 98-0522PBF through Aetrix?

Please submit a Request for Quotation (RFQ) for 98-0522PBF 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 98-0522PBF reliable?

The price and inventory of 98-0522PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 98-0522PBF is usually 5 days.

3.What payment methods are accepted for 98-0522PBF?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 98-0522PBF transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 98-0522PBF?

98-0522PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 98-0522PBF 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 98-0522PBF?

For technical support, including 98-0522PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 98-0522PBF requirements.

6.How does Aetrix verify that 98-0522PBF is sourced from the original manufacturer or authorized distributors?

All 98-0522PBF 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 98-0522PBF meets industry standards.

7.What is the process for return or replacement of 98-0522PBF?

All 98-0522PBF units undergo pre-shipment inspection (PSI). If there is an issue with 98-0522PBF, 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 98-0522PBF part is unused and in its original packaging.

Return procedure for 98-0522PBF:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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