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Infineon Technologies IR2167STRPBF
- Part No.:
- IR2167STRPBF
- Manufacturer:
- Infineon Technologies
- Category:
- Lighting, Ballast Controllers
- Package:
- 20-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
IR2167STRPBF.pdf
- Description:
- IC PFC/BALLAST CNTL 47KHZ 20SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,925
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Product details
Overview
IR2167STRPBF from Infineon Technologies is a fully integrated 600V fluorescent lamp ballast control IC combining PFC, half-bridge driver, and lamp protection logic in a single SOIC-20 package. It implements critical conduction mode (CrCM) boost PFC without current-sense resistor, delivers programmable preheat/ignition timing, supports end-of-life detection via SD pin voltage thresholds (2.6–3.4V rising, 0.7–1.3V falling), and provides thermal shutdown at 160°C - used in electronic ballasts for T5/T8 linear fluorescent lamps.
For engineers reviewing the IR2167STRPBF datasheet, IR2167STRPBF pinout, IR2167STRPBF application, or IR2167STRPBF equivalent, key selection criteria include CrCM PFC operation without sense resistor, dual-mode oscillator (preheat/run/ignition ramp), filament sensing via CPH/RPH pins, VCC zener clamp at 15.6V, and fault latching with manual reset via SD pin cycling.
Technical Context
The IR2167STRPBF integrates a variable-frequency oscillator with externally programmable deadtime (via RDT), T-flip-flop-based 50% duty cycle control for half-bridge outputs (HO/LO), and a dedicated PFC gate driver with zero-crossing detection (ZX pin) and error amplifier (COMP pin). Its CrCM PFC section regulates DC bus voltage (VBUS threshold 4.0V typ.) while eliminating external current-sense resistors through internal current sampling.
Protection architecture includes sequential over-current fault counting (25–75 cycles before shutdown), dynamic restart on lamp exchange, capacitive-mode detection via CS pin behavior, brown-out monitoring (VDC thresholds 2.7–5.7V), and end-of-life detection using dual SD pin thresholds (1.0V/3.0V). All protections feed into a fault latch requiring SD or VCC cycling to reset.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Clamp | 15.6V internal zener - enables stable bias under varying input, eliminates need for external regulator |
| Oscillator Freq | 41–47kHz (RT=16.9kΩ, CT=470pF) - sets half-bridge switching frequency during run mode |
| PFC Mode | Critical Conduction Mode (CrCM) - achieves >0.98 PF and <10% THD without current-sense resistor |
| Thermal Shutdown | 160°C junction temperature - latches off outputs until SD or VCC is cycled |
| Preheat Control | RPH pin current 0–450µA - programs preheat time/frequency via external resistor |
| Ignition Ramp | CPH voltage ramps from 0V to 5.1V - controls frequency sweep from fMIN to fRUN during lamp ignition |
| Over-Current Fault | CS pin threshold 1.05–1.35V - triggers shutdown after 25–75 consecutive cycles above threshold |
Pinout & Package
IR2167STRPBF is housed in a 20-lead SOIC (wide body) package with creepage-enhanced spacing for 600V isolation. Pin functions are validated per Infineon PD60184 rev F datasheet and match physical lead assignments.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 VDC | DC bus voltage sense input | Detects rectified line voltage level; triggers UVLO if below 2.7V or OV if above 5.7V |
| 3 CPH | Preheat timing capacitor node | Charges at 3µA in preheat, 1µA in ignition; voltage threshold (4.1V/5.1V) determines mode transitions |
| 4 RPH | Preheat frequency programming resistor | Sinks 0–450µA to set preheat frequency; open circuit enables default preheat timing |
| 5 RT | Oscillator timing resistor | Sets base oscillator frequency; current sum includes RPH/RUN contributions depending on operating mode |
| 6 RUN | Run frequency programming resistor | Sinks 0–450µA to set run-mode frequency; open circuit enables default run frequency |
| 7 CT | Oscillator timing capacitor | 470pF typical; forms RC timebase with RT for sawtooth ramp generation (VCT = 1.8–4.4V) |
| 8 DT | Deadtime programming resistor | Sets HO/LO deadtime (2.0–2.6µs); 6.1kΩ yields typical 2.4µs deadtime |
| 9 OC | Over-current threshold programming | Adjusts CS pin trip point; sets sensitivity for hard-switching or lamp-strike failure detection |
| 10 LO | Low-side gate driver output | Drives low-side MOSFET with 0–100mV VOL, 85ns tr, 45ns tf into 1nF load |
| 11 COM | Power and signal ground reference | Common return for LO, CS, SD, COMP, ZX, VBUS, and logic circuits |
| 12 VCC | Logic supply input | 14–16.5V operation; internally clamped at 15.6V; supplies all logic and gate drivers |
| 13 VB | High-side floating supply | Connects to bootstrap capacitor; supports up to 625V offset relative to VS |
| 14 VS | High-side floating return | Reference for HO output; tied to source of high-side MOSFET; withstands -25V to +600V |
| 15 HO | High-side gate driver output | Drives high-side MOSFET; VHO = VS–0.3V to VB+0.3V; 85ns tr, 45ns tf |
| 16 SD | Shutdown and end-of-life input | Three-state detection: <1.0V (EOL), 1.0–3.0V (normal), >4.8V (fault/lamp removal) |
| 17 CS | Current sense input | Monitors half-bridge current; 1.2V threshold triggers over-current fault after configurable cycles |
| 18 ZX | PFC inductor zero-crossing detector | Input for CrCM PFC timing; 2.0V threshold with 300mV hysteresis ensures reliable turn-on |
| 19 COMP | PFC error amplifier compensation | Connects RC network to stabilize PFC loop; transconductance 90µmho typical |
| 20 VBUS | PFC bus voltage sense | 4.0V threshold detects regulated DC bus; bias current <0.1µA minimizes loading |
Key Features
| Feature | Design Value |
|---|---|
| No PFC current-sense resistor | Internal current sampling eliminates power loss and board space for shunt resistor in CrCM PFC stage |
| Programmable preheat & ignition | RPH/CPH/RT/CT allow independent tuning of preheat duration, ignition ramp rate, and run frequency |
| End-of-life lamp detection | SD pin interprets filament degradation via voltage decay (1.0V/3.0V thresholds), enabling safe shutdown |
| Capacitive-mode protection | CS pin under-current detection (<0.23V) identifies lamp non-strike or capacitive resonance failure |
| Micropower startup | 150µA quiescent current in UVLO mode extends hold-up time and reduces standby losses |
Applications
| Fluorescent Lamp Ballast | Commercial Lighting System |
|---|---|
|
Use Scenario: Electronic ballast driving T5/T8 linear fluorescent lamps in office ceiling fixtures. IC Role / Device Role / Timing Role: Ballast controller managing PFC regulation, preheat/ignition sequencing, and half-bridge drive timing. Use Value: Eliminates external PFC current sense resistor and enables lamp life monitoring via SD pin voltage decay. |
Use Scenario: Multi-lamp parallel ballast module in retail store lighting with centralized AC input. IC Role / Device Role / Timing Role: Primary timing and protection controller coordinating multiple lamp channels via shared VCC/VDC/SD lines. Use Value: Programmable deadtime (RDT) and ignition ramp (CPH) ensure consistent lamp starting across varying line voltages and temperatures. |
| Industrial Fluorescent Fixture | Lamp Replacement Diagnostic Module |
|
Use Scenario: High-reliability fluorescent fixture in factory environment with wide ambient temperature range (-40°C to +85°C). IC Role / Device Role / Timing Role: Fault-tolerant ballast manager implementing thermal shutdown (160°C), brown-out recovery, and automatic restart on lamp exchange. Use Value: Latch immunity and ESD protection (per datasheet) ensure robust operation in electrically noisy industrial settings. |
Use Scenario: Retrofit diagnostic board added to legacy magnetic ballast systems to monitor lamp health. IC Role / Device Role / Timing Role: End-of-life sensor interpreting SD pin voltage decay to trigger maintenance alerts before catastrophic lamp failure. Use Value: Dual SD thresholds (1.0V/3.0V) provide unambiguous detection of filament wear without external microcontroller. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fluorescent ballast control applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| IR2166STRPBF | Same pinout and core architecture but lacks end-of-life detection (no dual-threshold SD pin) and has fixed preheat timing. | Supports basic CrCM PFC and half-bridge drive but cannot replace IR2167 in lamp life monitoring applications. | Select when cost-sensitive designs omit EOL diagnostics and use fixed preheat profiles. |
| BD7950FJ-E2 (ROHM) | Integrated 600V half-bridge + PFC controller with I²C interface; requires external MCU for configuration; no CPH/RPH analog programming. | Enables digital tuning and telemetry but increases BOM count and firmware dependency versus IR2167's analog simplicity. | Select when system-level lamp data logging or adaptive control is required beyond analog-only operation. |
Compared with IR2166STRPBF, the IR2167STRPBF adds programmable preheat/ignition and EOL detection; compared with BD7950FJ-E2, it offers direct analog configuration without MCU overhead but lacks digital diagnostics.
Availability
IR2167STRPBF is available at Aetrix Electronics and suitable for commercial lighting systems, industrial fluorescent fixtures, and lamp replacement diagnostic modules requiring stable component supply and long-term lifecycle support.
Supply support for IR2167STRPBF 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 IR2167STRPBF belongs to Infineon's ballast control IC product line, designed specifically for high-efficiency, self-protected electronic fluorescent lamp drivers with integrated PFC and analog programmability.
FAQ
What is the purpose of the CPH pin and how does it affect lamp starting?
The CPH pin is the preheat timing capacitor node that charges at 3µA during preheat mode and 1µA during ignition ramp mode. Its voltage threshold (4.1V) triggers transition from preheat to ignition, and 5.1V signals completion of ignition ramp. This analog-controlled ramp ensures controlled filament heating and smooth frequency sweep to avoid acoustic resonance, directly determining lamp start reliability and electrode life.
How does the IR2167STRPBF implement PFC without a current-sense resistor?
The IR2167STRPBF uses internal current sampling within the PFC gate driver path, synchronized to the ZX (zero-crossing) input, to detect inductor current zero crossings and regulate switch conduction time. This eliminates the need for an external shunt resistor while maintaining CrCM operation, reducing power loss, PCB area, and thermal stress in the PFC stage.
Can the IR2167STRPBF be used with LED drivers or other lamp types?
No - the IR2167STRPBF is specifically architected for fluorescent lamp ballasting: its state machine (preheat/ignition/run/fault), filament sensing (CPH/RPH), and end-of-life detection (SD pin thresholds) are optimized for gas-discharge lamp physics. It lacks the constant-current regulation, dimming interfaces, or thermal feedback loops required for LED drivers.
What happens when the thermal shutdown threshold is exceeded?
When junction temperature exceeds 160°C, the IR2167STRPBF enters FAULT Mode: half-bridge outputs (HO/LO) and PFC driver disable, COMP pin pulls to 0V, CPH discharges to 0V, and quiescent current drops to ~150µA. Recovery requires cycling the SD pin (high then low) or dropping VCC below 9.5V to reset the internal fault latch.
IR2167STRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 20-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- PFC/Ballast Controller
- Frequency:
- 41kHz ~ 47kHz
- Voltage - Supply:
- 10.4V ~ 16.5V
- Current - Supply:
- 10 mA
- Current - Output Source/Sink:
- -
- Dimming:
- No
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-SOIC
IR2167STRPBF FAQ
1.How can I place an order for IR2167STRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for IR2167STRPBF 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 IR2167STRPBF reliable?
The price and inventory of IR2167STRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IR2167STRPBF is usually 5 days.
3.What payment methods are accepted for IR2167STRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IR2167STRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for IR2167STRPBF?
IR2167STRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your IR2167STRPBF 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 IR2167STRPBF?
For technical support, including IR2167STRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IR2167STRPBF requirements.
6.How does Aetrix verify that IR2167STRPBF is sourced from the original manufacturer or authorized distributors?
All IR2167STRPBF 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 IR2167STRPBF meets industry standards.
7.What is the process for return or replacement of IR2167STRPBF?
All IR2167STRPBF units undergo pre-shipment inspection (PSI). If there is an issue with IR2167STRPBF, 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 IR2167STRPBF part is unused and in its original packaging.
Return procedure for IR2167STRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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