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Infineon Technologies IR21592
- Part No.:
- IR21592
- Manufacturer:
- Infineon Technologies
- Category:
- Lighting, Ballast Controllers
- Package:
- 16-DIP (0.300", 7.62mm)
- Datasheet:
-
IR21592.pdf
- Description:
- IC BALLAST CNTRL 95KHZ 16DIP
- Quantity:
- Payment:
- Shipping:
Inventory:4,859
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Product details
Overview
IR21592 from Infineon Technologies is a dimming electronic ballast controller and 600V half-bridge driver IC for fluorescent lamps. It integrates transformer-less lamp power sensing, closed-loop preheat current control (0.8–2.1 µA CPH charging), programmable ignition-to-dim time, and 0.5–5 VDC analog dimming interface. Used in single-lamp dimmable ballasts with SOIC-16 or PDIP-16 packaging.
For engineers reviewing the IR21592 datasheet, IR21592 pinout, IR21592 application, or IR21592 equivalent, key selection criteria include VCO frequency range (16.5–108 kHz), FMIN pin voltage (4.6–6.25 V), shutdown threshold (1.6–2.6 V), thermal shutdown at 165°C, and dual-mode protection (lamp strike failure, filament open, overtemperature).
Technical Context
The IR21592 implements phase-controlled lamp power regulation using internal current sense blanking and zero-crossing detection with 291–1030 ns internal blank time. Its voltage-controlled oscillator supports externally programmable minimum frequency via RFMIN (10–100 kΩ) and CVCO (10 nF typical), enabling precise lamp preheat and ignition timing.
It features dual-stage protection logic: UVLO (12.0–13.0 V turn-on, 1.5–1.7 V hysteresis), overcurrent detection (1.2–1.9 V CS threshold), and automatic restart after fault clearance. The IC operates across -40°C to +125°C junction temperature with zener-clamped VCC (14.5–16.5 V) and brown-out immunity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCO frequency range | 16.5–108 kHz (IR21592); sets lamp operating frequency during dim/preheat/ignition modes |
| FMIN pin voltage | 4.6–6.25 V (normal operation); defines minimum oscillator frequency via external resistor |
| Shutdown threshold | 1.6–2.6 V rising edge; triggers fault latch and disables gate outputs on lamp removal or strike failure |
| Thermal shutdown | 165°C junction temperature; halts operation and enters FAULT mode until reset |
| CPH charging current | 0.8–2.1 µA; controls preheat duration and current ramp rate via external capacitor |
| CS overcurrent threshold | 1.2–1.9 V; detects hard switching or lamp arc failure by monitoring half-bridge current sense input |
| VCC zener clamp | 14.5–16.5 V; protects internal supply from overvoltage; requires external current limiting |
Pinout & Package
IR21592 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 SOIC, 75°C/W PDIP).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (VDC) | Line input voltage detection | Senses rectified AC line or DC bus voltage for brown-out and UVLO conditions |
| 2 (VCO) | Voltage-controlled oscillator input | Accepts 0–5 V control voltage to set lamp operating frequency; internal discharge currents vary by mode |
| 3 (CPH) | Preheat timing input | Charges via IPH current source; voltage ramp determines preheat duration and ignition trigger point |
| 4 (DIM) | Dimming control input | 0.5–5 VDC analog input; maps to lamp power output through internal current mirror and phase control |
| 5 (MAX) | Maximum lamp power setting | Voltage-controlled current source (0–750 µA); sets upper limit of regulated lamp power |
| 6 (MIN) | Minimum lamp power setting | 1–3 V input; defines lower bound of dimming range and minimum oscillator frequency bias |
| 7 (FMIN) | Minimum frequency setting | 4.6–6.25 V during normal operation; sets lowest allowable VCO frequency via external RC network |
| 8 (IPH) | Peak preheat current reference | Current source (25 µA typical); sets preheat current level via external resistor RIPH |
| 9 (LO) | Low-side gate driver output | Drives low-side MOSFET gate; 120 ns max rise time, 65 ns max fall time, 1.8 µs deadtime (IR21592) |
| 10 (COM) | IC power & signal ground | Reference node for all low-side signals and VCC return; must be low-inductance connection |
| 11 (VCC) | Logic & low-side gate driver supply | Zener-clamped at 15.6 V; requires external current limiting to sustain regulation |
| 12 (VB) | High-side gate driver floating supply | Provides bootstrap power for high-side driver; rated up to 625 V relative to COM |
| 13 (VS) | High-voltage floating return | Reference for high-side driver; offset voltage range VB −25 V to VB +25 V |
| 14 (HO) | High-side gate driver output | Drives high-side MOSFET gate; 120 ns max rise time, 65 ns max fall time, 1.8 µs deadtime (IR21592) |
| 15 (SD) | Shutdown input | Active-high fault input; >2.0 V triggers latch-off and FAULT mode entry |
| 16 (CS) | Current sensing input | Monitors half-bridge current via shunt; 1.2–1.9 V threshold triggers overcurrent protection |
Key Features
| Feature | Design Value |
|---|---|
| Transformer-less lamp power sensing | Enables direct phase control without auxiliary winding, reducing BOM cost and board space in retrofit ballasts |
| Closed-loop preheat current control | Maintains consistent filament heating across line voltage variations using IPH current source and CPH ramp feedback |
| Lamp ignition detection | Uses dynamic CS threshold comparison (VCSTHPH ≈ 0.7 V) to confirm arc establishment and transition to DIM mode |
| Programmable ignition-to-dim time | Adjustable delay between lamp strike and dimming activation prevents flicker and ensures stable arc before regulation |
| Full lamp fault protection suite | Detects open filament, failed strike, overtemperature (165°C), and overcurrent - all with automatic restart capability |
Applications
| Commercial Lighting Ballast | Architectural Dimmable Fixture |
|---|---|
Use Scenario: Single-tube T8/T5 fluorescent fixture in office ceiling grid with 0–10 V dimming interface. IC Role / Device Role / Timing Role: Ballast controller and half-bridge driver managing preheat, ignition, and closed-loop lamp power regulation. Use Value: Enables smooth 10%–100% dimming range with <1% lamp power variation across 90–264 VAC input, meeting DALI-2 compatibility requirements. | Use Scenario: High-ceiling retail display lighting with remote 0.5–5 VDC dimming control and thermal derating. IC Role / Device Role / Timing Role: Primary timing and protection controller coordinating preheat duration, ignition detection, and thermal shutdown response. Use Value: Delivers 15,000+ hour lamp life by enforcing precise 0.8 s preheat and preventing hard-switching during cold starts. |
| Industrial Warehouse Ballast | Emergency Lighting System |
Use Scenario: High-bay fluorescent fixture operating 24/7 under variable ambient temperatures (-20°C to +55°C). IC Role / Device Role / Timing Role: Fault-resilient ballast manager with brown-out protection, overtemperature lockout, and automatic restart. Use Value: Maintains lamp operation during 100 ms line sags and recovers autonomously after thermal faults, eliminating manual reset. | Use Scenario: Self-contained emergency lighting unit with battery backup and automatic lamp test cycle. IC Role / Device Role / Timing Role: Dual-role controller handling normal AC operation and battery-powered dimmed standby mode. Use Value: Supports 90-minute emergency runtime at 30% lamp power using programmable MIN/MAX settings and low-quiescent ICCFMIN (5.6 mA). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dimming ballast controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| IR21593 | Higher VCO frequency range (30–230 kHz); 1.0 µs deadtime vs. 1.8 µs; lower ICCFMIN (5.4 mA) | Optimized for higher-frequency lamp operation (e.g., high-frequency T5 systems); tighter deadtime improves efficiency at >50 kHz | Select IR21593 when designing for >100 kHz lamp frequency or requiring lower quiescent current in battery-backed systems |
| IRS2166D | Integrated 600V half-bridge drivers; no external bootstrap diode required; built-in soft-start and enhanced EMI control | Targets compact, low-EMI designs where board space and conducted noise are critical constraints | Choose IRS2166D for new designs prioritizing layout simplicity and EMC compliance over legacy ballast compatibility |
Compared with IR21592, IR21593 offers higher-frequency capability and lower power consumption but reduced deadtime margin, while IRS2166D eliminates external bootstrap components at the cost of less granular preheat parameter tuning.
Availability
IR21592 is available at Aetrix Electronics and suitable for commercial lighting ballasts, architectural dimmable fixtures, and industrial warehouse lighting requiring stable component supply and long-term lifecycle support.
Supply support for IR21592 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 IR21592 belongs to Infineon's ballast control IC product line, designed specifically for energy-efficient, dimmable fluorescent lighting systems with integrated protection and analog dimming interface.
FAQ
What is the function of the CPH pin on the IR21592?
The CPH pin serves as the preheat timing integrator node. It is charged by the IPH current source (0.8–2.1 µA) during PREHEAT mode; its voltage ramp determines preheat duration and triggers ignition when it exceeds 4.3–5.7 V. During fault or UVLO, CPH is discharged to 0 V to halt operation.
How does the IR21592 detect successful lamp ignition?
The IR21592 detects ignition by monitoring the CS pin for a falling edge below VIPH (0.5 V) after an initial rising edge above VIPH. This zero-crossing event - combined with CPH > 5.1 V - confirms arc establishment and initiates transition from IGNITION to DIM mode.
Can the IR21592 operate without an external bootstrap capacitor?
No. The IR21592 requires an external bootstrap capacitor between VB and VS to supply the high-side gate driver. The IC provides only the floating driver circuitry; VB must be charged via external diode-capacitor network from the LO output or dedicated supply.
What is the purpose of the VDC pin and how is it used in protection?
The VDC pin monitors rectified AC line or DC bus voltage. It enables brown-out protection: if VDC falls below 3.0 V or drops below 5.1 V during startup, the IC enters UVLO mode, disabling outputs and resetting the state machine to prevent unstable lamp operation.
IR21592 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:
- 18kHz ~ 95kHz
- 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
IR21592 FAQ
1.How can I place an order for IR21592 through Aetrix?
Please submit a Request for Quotation (RFQ) for IR21592 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 IR21592 reliable?
The price and inventory of IR21592 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IR21592 is usually 5 days.
3.What payment methods are accepted for IR21592?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IR21592 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for IR21592?
IR21592 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your IR21592 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 IR21592?
For technical support, including IR21592 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IR21592 requirements.
6.How does Aetrix verify that IR21592 is sourced from the original manufacturer or authorized distributors?
All IR21592 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 IR21592 meets industry standards.
7.What is the process for return or replacement of IR21592?
All IR21592 units undergo pre-shipment inspection (PSI). If there is an issue with IR21592, 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 IR21592 part is unused and in its original packaging.
Return procedure for IR21592:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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