My Inquiry
My Account
Infineon Technologies IR21593S
- Part No.:
- IR21593S
- Manufacturer:
- Infineon Technologies
- Category:
- Lighting, Ballast Controllers
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
IR21593S.pdf
- Description:
- IC BALLAST CNTRL 230KHZ 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,495
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
IR21593S from Infineon Technologies is a dimming ballast controller and 600V half-bridge driver IC for fluorescent lamp electronic ballasts. 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 dimming interface. Used in single-lamp dimmable ballasts with SOIC-16 packaging.
For engineers reviewing the IR21593S datasheet, IR21593S pinout, IR21593S application, or IR21593S equivalent, key selection criteria include VCO frequency range (30–230 kHz), HO/LO deadtime (1.0 µs), thermal shutdown at 165°C, and lamp fault protection including open-filament and no-strike detection.
Technical Context
The IR21593S implements phase-controlled lamp power regulation using a voltage-controlled oscillator (VCO) with externally programmable minimum frequency (via RFMIN, 10–100 kΩ). Its architecture supports preheat, ignition, and dim modes via state transitions triggered by CPH voltage thresholds (4.3–5.7 V), CS overcurrent (1.2–1.9 V), and SD shutdown (1.6–2.6 V).
It features dual gate drivers: high-side output HO referenced to VB/VS (600 V offset capability) and low-side LO referenced to COM, with integrated current-sense blanking, zener-clamped VCC (14.5–16.5 V), and micro-power startup. Protection includes brown-out, over-temperature (165°C), and automatic restart after fault clearance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCO Frequency Range | 30–230 kHz - sets half-bridge switching frequency for lamp power regulation and EMI control |
| HO/LO Deadtime | 1.0 µs - prevents shoot-through during high/low-side switching transitions |
| Thermal Shutdown | 165°C - disables outputs and enters FAULT mode to prevent junction damage |
| Dim Input Range | 0.5–5.0 VDC - maps linearly to lamp power output for analog dimming compatibility |
| Current Sense Threshold | 1.2–1.9 V - triggers overcurrent protection during lamp strike or filament failure |
| VCC Zener Clamp | 14.5–16.5 V - regulates internal supply without external regulator; limits max VCC stress |
| CPH Charging Current | 0.8–2.1 µA - controls preheat ramp rate and duration via external capacitor |
Pinout & Package
IR21593S is housed in a 16-pin narrow-body SOIC package (body width 3.9 mm, JEDEC MS-012AC), surface-mount compatible with standard reflow profiles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (VDC) | Line input voltage detection | Senses rectified AC line or DC bus voltage to enable UVLO and bus OK validation |
| 2 (VCO) | Voltage-controlled oscillator input | Accepts external CVCO capacitor and RFMIN resistor to set min/max frequency range |
| 3 (CPH) | Preheat timing input | Integrates IPH current to generate preheat ramp; threshold at 4.3–5.7 V triggers ignition |
| 4 (DIM) | Dimming control input | 0.5–5 VDC analog input controlling lamp power level in DIM mode |
| 5 (MAX) | Maximum lamp power setting | Voltage-controlled current source (0–750 µA) setting upper power limit |
| 6 (MIN) | Minimum lamp power setting | 1–3 V input defining lowest dimmable power level |
| 7 (FMIN) | Minimum frequency setting | 4.6–6.25 V during operation; sets lower bound of VCO frequency sweep |
| 8 (IPH) | Peak preheat current reference | Sources 25 µA to RIPH to set preheat current threshold (VCSTHPH = IIPH × RIPH) |
| 9 (LO) | Low-side gate driver output | Drives external N-channel MOSFET gate referenced to COM |
| 10 (COM) | IC power & signal ground | Reference node for LO, CS, SD, and logic circuitry |
| 11 (VCC) | Logic & low-side supply | 14–16.5 V zener-clamped supply powering internal logic and LO driver |
| 12 (VB) | High-side floating supply | Connects to bootstrap capacitor; supplies HO driver stage |
| 13 (VS) | High-side floating return | Reference for HO output; tracks half-bridge midpoint under 600 V offset |
| 14 (HO) | High-side gate driver output | Drives external high-side N-channel MOSFET gate referenced to VS |
| 15 (SD) | Shutdown input | Active-high (1.6–2.6 V) latch disabling all outputs during fault or lamp removal |
| 16 (CS) | Current sensing input | Monitors half-bridge current via sense resistor; 1.2–1.9 V threshold triggers protection |
Key Features
| Feature | Design Value |
|---|---|
| Transformer-less lamp power sensing | Uses phase control on VDC input to derive lamp power without auxiliary winding or transformer |
| Closed-loop preheat current control | Maintains precise filament heating via IPH-referenced CS threshold and CPH ramp timing |
| Lamp ignition detection | Identifies successful strike by detecting CS voltage drop after CPH > 5.1 V, enabling mode transition |
| Programmable ignition-to-dim time | Adjustable delay between ignition completion and dim mode entry via external RC network |
| Full lamp fault protection suite | Covers open filament, no-strike, over-temperature (165°C), brown-out, and short-circuit conditions |
Applications
| Commercial Lighting Ballast | Architectural Dimmable Fixture |
|---|---|
Use Scenario: Single-tube T5/T8 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 flicker-free dimming down to 1% with stable lamp power control across line voltage variations (±10%) and temperature (-25°C to +60°C). | Use Scenario: Recessed downlight in retail display with DALI-compatible 0–10 V dimming input. IC Role / Device Role / Timing Role: Core timing and protection controller coordinating HO/LO gate drive, current sensing, and fault latching. Use Value: Provides automatic restart after lamp replacement and maintains consistent color temperature during dimming via regulated preheat and ignition timing. |
| Hospitality Lighting System | Industrial Task Lighting |
Use Scenario: Corridor lighting in hotel with occupancy sensor-linked dimming and scheduled power cycling. IC Role / Device Role / Timing Role: Fault-resilient ballast manager handling frequent on/off cycles and lamp aging compensation. Use Value: Extends lamp life by 35% through programmable preheat current (via IPH/RIPH) and soft-start ignition sequence. | Use Scenario: High-bay warehouse lighting exposed to wide ambient temperature swings (-20°C to +55°C). IC Role / Device Role / Timing Role: Thermal-protected ballast controller with junction temperature monitoring and shutdown at 165°C. Use Value: Prevents catastrophic failure during sustained high-temp operation while maintaining lamp output within ±5% tolerance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dimming ballast controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| IR21592S | VCO range 16.5–108 kHz; 1.8 µs HO/LO deadtime; higher ICCFMIN (5.6 mA) | Optimized for lower-frequency ballasts requiring longer preheat and reduced EMI | Select when system EMI limits require <100 kHz operation or legacy non-dimming ballast adaptation is prioritized |
| IRS2166DSTRPBF | Integrated 600 V half-bridge + PFC controller; 16-pin SOIC; no separate VDC pin | Supports active PFC front-end; requires different layout and feedback topology | Choose when designing new ballasts with universal input (90–265 VAC) and mandatory PFC compliance |
Compared with IR21592S and IRS2166DSTRPBF, the IR21593S delivers higher-frequency operation (up to 230 kHz) for compact magnetics, tighter deadtime control (1.0 µs), and dedicated VDC-based line monitoring-making it optimal for retrofit dimmable ballasts where size, EMI, and compatibility with existing non-dimming designs are critical.
Availability
IR21593S is available at Aetrix Electronics and suitable for commercial lighting ballasts, architectural dimmable fixtures, hospitality lighting systems, and industrial task lighting requiring stable component supply and long-term lifecycle support.
Supply support for IR21593S 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 IR2159x series belongs to Infineon's fluorescent ballast controller product line, designed specifically for energy-efficient, dimmable electronic ballasts with integrated protection and analog dimming interface compatibility.
FAQ
What is the function of the CPH pin on the IR21593S?
The CPH pin integrates preheat timing via external capacitor charging with IPH current (0.8–2.1 µA). When CPH voltage reaches 4.3–5.7 V, the IC transitions from PREHEAT to IGNITION mode. During faults, CPH discharges to 0 V, ensuring safe restart behavior and preventing uncontrolled preheat.
How does the IR21593S implement lamp ignition detection?
Ignition detection occurs when CS voltage drops below VIPH after CPH exceeds 5.1 V - indicating successful lamp strike and plasma conduction. This triggers state transition to DIM mode. The internal latch ensures reliable detection even with noisy current sense waveforms due to zero-crossing blanking (291–1030 ns).
Can the IR21593S operate without a bootstrap capacitor on VB?
No. The VB pin supplies the high-side driver stage and must be connected to a bootstrap capacitor charged via an external diode from VCC. Without this, HO cannot drive the high-side MOSFET gate above VS, resulting in half-bridge failure and immediate CS overcurrent fault.
What is the role of the VDC pin in system protection?
The VDC pin monitors rectified AC line or DC bus voltage. If VDC falls below 3.0 V, the IC enters UVLO mode, disabling outputs and resetting internal state. This prevents erratic operation during brown-out or power-down events and ensures clean restart when bus voltage recovers above 5.1 V.
IR21593S Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 16-SOIC (0.154", 3.90mm Width)
- 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:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
IR21593S FAQ
1.How can I place an order for IR21593S through Aetrix?
Please submit a Request for Quotation (RFQ) for IR21593S 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 IR21593S reliable?
The price and inventory of IR21593S are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IR21593S is usually 5 days.
3.What payment methods are accepted for IR21593S?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IR21593S transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for IR21593S?
IR21593S orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your IR21593S 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 IR21593S?
For technical support, including IR21593S datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IR21593S requirements.
6.How does Aetrix verify that IR21593S is sourced from the original manufacturer or authorized distributors?
All IR21593S 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 IR21593S meets industry standards.
7.What is the process for return or replacement of IR21593S?
All IR21593S units undergo pre-shipment inspection (PSI). If there is an issue with IR21593S, 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 IR21593S part is unused and in its original packaging.
Return procedure for IR21593S:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
IR21593S Tags
-
HV833MG-G
Microchip Technology
-
HV857MG-G
Microchip Technology
-
MIC4826YMM-TR
Microchip Technology
-
HV823LG-G
Microchip Technology
-
IR2156STRPBF
Infineon Technologies
-
BTS712204ESAXUMA1
Infineon Technologies
-
UC3872DW
Texas Instruments
-
MAX14514ETD+
Analog Devices Inc./Maxim Integrated
-
MAX14521EETG+
Analog Devices Inc./Maxim Integrated
-
HV857LMG-G
Microchip Technology
-
HV860K7-G
Microchip Technology
-
MIC4832YMM
Microchip Technology
Tech Hub
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
Engineering guide to Raspberry Pi alternatives, covering chip-level differences, Orange Pi, ROCK, Jetson, Banana Pi, NanoPi, Compute Module, Pico, GPIO, camera, HAT compatibility, and replacement risks…
Engineering guide to dynamic load response testing for high-current buck converters, covering load step setup, slew rate, Vcore undershoot, overshoot, recovery time, probe location, output capacitors a…
