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Infineon Technologies IR21593
- Part No.:
- IR21593
- Manufacturer:
- Infineon Technologies
- Category:
- Lighting, Ballast Controllers
- Package:
- 16-DIP (0.300", 7.62mm)
- Datasheet:
-
IR21593.pdf
- Description:
- IC BALLAST CNTRL 230KHZ 16DIP
- Quantity:
- Payment:
- Shipping:
Inventory:1,139
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Product details
Overview
IR21593 from Infineon Technologies is a dimming fluorescent ballast controller and 600V half-bridge gate driver integrated in a single IC. It performs transformer-less lamp power sensing via phase control, closed-loop preheat current regulation (0.7 V threshold), programmable ignition-to-dim timing, and 0.5–5 VDC analog dimming control - enabling retrofit of non-dimming electronic ballasts for commercial lighting systems with single-lamp operation.
For engineers reviewing the IR21593 datasheet, IR21593 pinout, IR21593 application, or IR21593 equivalent, key selection criteria include its 30–230 kHz VCO frequency range (IR21593 variant), 1.0 µs deadtime, 15.6 V zener-clamped VCC, thermal shutdown at 165°C, and dual-package availability (16-pin SOIC/narrow-body and PDIP) for layout flexibility in compact ballast designs.
Technical Context
The IR21593 implements a voltage-controlled oscillator (VCO) architecture with externally programmable minimum frequency (via RFMIN resistor, 10–100 kΩ), where VCO frequency scales from 30 kHz to 230 kHz as VVCO rises from 0 V to 5 V. Its phase-control-based lamp power sensing eliminates external current transformers and enables precise regulation without high-side current sense resistors.
Preheat and ignition sequencing are managed by dedicated CPH and IPH pins: CPH charges at 1.3 µA typical during preheat, reaching 5.0 V threshold to trigger ignition detection; IPH sources 25 µA to set peak preheat current (VCSTHPH = 0.7 V). Fault handling includes latch-off on overcurrent (CS > 1.6 V), thermal shutdown (TJ > 165°C), and automatic restart after UVLO recovery.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCO freq. range | 30–230 kHz - sets half-bridge switching frequency for lamp resonance and power control |
| Deadtime (HO/LO) | 1.0 µs - prevents shoot-through in half-bridge power stage | VCC clamp voltage | 15.6 V - internal zener limits supply rail; requires ≥10 mA VCC bias current |
| Preheat current threshold | 0.7 V at CS pin - regulates filament heating current via external RIPH |
| Dimming input range | 0.5–5.0 VDC - linearly maps to lamp power output with MIN/MAX pin scaling |
| Thermal shutdown | 165°C - latches off outputs until fault clears and VCC recovers |
| Shutdown threshold | 2.0 V on SD pin - disables gate drivers during lamp removal or open-circuit fault |
Pinout & Package
IR21593 is available in 16-pin narrow-body SOIC and 16-pin PDIP packages. Both share identical pin mapping and thermal characteristics (RthJA = 115°C/W for SOIC, 75°C/W for PDIP).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (VDC) | Line input voltage detection | Senses rectified AC line presence; triggers UVLO if <3.0 V |
| 2 (VCO) | Voltage-controlled oscillator input | 0–5 V analog input sets switching frequency; discharge current varies by mode (1.0 µA preheat, 16 µA dim) |
| 3 (CPH) | Preheat timing capacitor | Charges at 1.3 µA to 5.0 V to end preheat and initiate ignition |
| 4 (DIM) | Dimming control input | 0.5–5.0 VDC analog interface; referenced to MIN/MAX pins for power range scaling |
| 5 (MAX) | Maximum lamp power setting | Voltage-controlled current source (0–750 µA) sets upper power limit |
| 6 (MIN) | Minimum lamp power setting | 1.0–3.0 V input defines lower dimming bound and FMIN reference |
| 7 (FMIN) | Minimum frequency setting | 4.6–6.25 V during normal operation; sets lowest VCO frequency via RFMIN resistor |
| 8 (IPH) | Peak preheat current reference | Sources 25 µA to set VCSTHPH = 0.7 V across RIPH for filament current control |
| 9 (LO) | Low-side gate driver output | Drives N-channel MOSFET gate; logic-level compatible, 500 mA sink/source |
| 10 (COM) | Signal ground | Common return for low-side circuitry and current sense reference |
| 11 (VCC) | Logic supply | 15.6 V zener-clamped; requires external 14 V ±0.25 V bias with ≥10 mA current |
| 12 (VB) | High-side floating supply | Provides bootstrap power for HO driver; rated up to 625 V relative to COM |
| 13 (VS) | High-side floating return | Reference node for HO output; offset from VB by up to ±25 V |
| 14 (HO) | High-side gate driver output | Drives high-side N-channel MOSFET; 600 V rated, 500 mA sink/source |
| 15 (SD) | Shutdown input | Active-high fault latch: >2.0 V disables both gate drivers until reset |
| 16 (CS) | Current sense input | Monitors half-bridge current; 1.6 V threshold triggers overcurrent protection |
Key Features
| Feature | Design Value |
|---|---|
| Transformer-less lamp power sensing | Phase-control algorithm eliminates current transformer, reducing BOM cost and board space in compact ballasts |
| Programmable preheat time & current | CPH capacitor + IPH current source enable precise filament warm-up (e.g., 0.5–2 s) before ignition |
| Lamp ignition detection | CPH voltage rise above 5.0 V confirms successful strike; avoids repeated ignition attempts |
| Full lamp fault protection suite | Integrated detection of open filament, no-strike, overtemperature (165°C), and overcurrent (1.6 V CS threshold) |
| Micro-power startup & brown-out immunity | UVLO thresholds (12.5 V turn-on, 1.6 V hysteresis) ensure reliable operation during AC line dips |
Applications
| Commercial Office Lighting | Hotel Room Dimmable Ballasts |
|---|---|
Use Scenario: Fluorescent T8/T5 fixtures in open-plan offices requiring smooth 10–100% dimming and energy compliance (e.g., ASHRAE 90.1). IC Role / Device Role / Timing Role: Ballast controller and half-bridge driver managing preheat, ignition, dimming, and fault response. Use Value: Enables Class A dimming performance with <1% flicker and <50 ms response to dim command changes using only 0.5–5 VDC interface. | Use Scenario: Guest room lighting with wall-mounted 0–10 V dimmers and occupancy sensors for adaptive ambiance control. IC Role / Device Role / Timing Role: Primary lamp power regulator implementing programmable ignition-to-dim delay (e.g., 0.8 s) to prevent audible lamp buzz. Use Value: Eliminates need for external microcontroller; MIN/MAX pins allow field-adjustable dimming range without firmware change. |
| Hospital Corridor Emergency Lighting | Industrial Warehouse High-Bay Fixtures |
Use Scenario: Dual-lamp emergency ballasts with battery backup, requiring reliable cold-start at -20°C and lamp fault isolation. IC Role / Device Role / Timing Role: Fault-tolerant controller executing preheat at reduced current (via IPH scaling) and auto-restart after lamp replacement. Use Value: Thermal shutdown (165°C) and brown-out protection ensure continuous operation during generator switchover or voltage sags. | Use Scenario: High-bay T5HO fixtures in warehouses with 277 VAC line voltage and frequent on/off cycling. IC Role / Device Role / Timing Role: Half-bridge driver with 600 V VB rating and 1.0 µs deadtime ensuring robustness against voltage transients and Miller-induced shoot-through. Use Value: Internal current sense blanking (400 ns) prevents false overcurrent trips during switching transitions under high dV/dt conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dimming ballast controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| IRS2166D | Integrated 600 V half-bridge + PFC controller; lacks separate DIM/MIN/MAX pins; uses digital I²C interface | Requires MCU for dimming commands; supports multi-lamp configurations but higher system complexity | Choose IRS2166D when PFC integration and digital control are required; IR21593 preferred for analog-only, single-lamp simplicity |
| UCC3305 | Non-dimming ballast controller; no VCO dimming interface or programmable preheat; fixed 40–120 kHz frequency | Designed for cost-sensitive non-dimmable fixtures; no lamp power regulation or ignition detection | Choose UCC3305 only for fixed-output applications where dimming and closed-loop control are unnecessary |
Compared with IRS2166D and UCC3305, the IR21593 uniquely combines analog dimming precision, transformer-less power sensing, and full fault protection in a pin-strapped configuration - making it optimal for retrofit-ready, single-lamp commercial dimming ballasts without MCU dependency.
Availability
IR21593 is available at Aetrix Electronics and suitable for commercial office lighting, hotel room dimmable ballasts, and hospital corridor emergency lighting requiring stable component supply and long-term lifecycle support.
Supply support for IR21593 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 9001 and IATF 16949.
The IR21593 belongs to Infineon's legacy ballast control product line, designed specifically for analog-dimming fluorescent lighting systems requiring high reliability, thermal resilience, and minimal external components in cost-sensitive commercial fixtures.
FAQ
What is the difference between IR21592 and IR21593?
The IR21593 features a wider VCO frequency range (30–230 kHz) versus IR21592 (16.5–108 kHz), shorter deadtime (1.0 µs vs. 1.8 µs), and optimized current-sense blanking for higher-frequency lamp operation. Both share identical pinout, protection features, and dimming interface, but IR21593 targets faster-switching, higher-efficiency ballasts.
How is lamp preheat current regulated?
Lamp preheat current is regulated by the IPH pin sourcing 25 µA into an external resistor (RIPH); the resulting voltage drop across RIPH sets the peak current threshold (VCSTHPH = 0.7 V). For example, RIPH = 27 kΩ yields 0.7 V, corresponding to ~26 mA preheat current in typical configurations.
Can IR21593 drive two lamps simultaneously?
No - the IR21593 is designed exclusively for single-lamp operation. Its current sense (CS), preheat (CPH/IPH), and ignition detection circuits are calibrated for one lamp's electrical signature. Driving multiple lamps would cause inaccurate preheat timing, failed ignition detection, and improper power regulation.
What happens during a lamp removal event?
When a lamp is removed, the SD pin voltage rises above 2.0 V due to lack of load current, triggering immediate latch-off of both HO and LO outputs. The device enters FAULT mode with 240 µA quiescent current, CPH = 0 V, and oscillator disabled until VCC drops below UVLO threshold and recovers - preventing uncontrolled half-bridge switching.
IR21593 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 16-DIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Type:
- Ballast Controller
- Frequency:
- 30kHz ~ 230kHz
- Voltage - Supply:
- 12V ~ 16.5V
- Current - Supply:
- 10 mA
- Current - Output Source/Sink:
- -
- Dimming:
- Yes
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 16-DIP
IR21593 FAQ
1.How can I place an order for IR21593 through Aetrix?
Please submit a Request for Quotation (RFQ) for IR21593 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 IR21593 reliable?
The price and inventory of IR21593 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IR21593 is usually 5 days.
3.What payment methods are accepted for IR21593?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IR21593 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for IR21593?
IR21593 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your IR21593 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 IR21593?
For technical support, including IR21593 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IR21593 requirements.
6.How does Aetrix verify that IR21593 is sourced from the original manufacturer or authorized distributors?
All IR21593 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 IR21593 meets industry standards.
7.What is the process for return or replacement of IR21593?
All IR21593 units undergo pre-shipment inspection (PSI). If there is an issue with IR21593, 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 IR21593 part is unused and in its original packaging.
Return procedure for IR21593:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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