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Infineon Technologies IR2155PBF
- Part No.:
- IR2155PBF
- Manufacturer:
- Infineon Technologies
- Category:
- Gate Drivers
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
IR2155PBF.pdf
- Description:
- IC GATE DRVR HALF-BRIDGE 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:3,674
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Product details
Overview
IR2155PBF from Infineon Technologies is a self-oscillating high-voltage half-bridge gate driver IC for N-channel MOSFETs and IGBTs, featuring 600 V offset voltage tolerance, 50% duty cycle, 210 mA/420 mA output drive capability, and 1.2 µs typical deadtime. It drives high-side switches in offline SMPS using bootstrap configuration.
For engineers reviewing the IR2155PBF datasheet, IR2155PBF pinout, IR2155PBF application, or IR2155PBF equivalent, key selection criteria include floating channel operation up to +600 V, programmable oscillator frequency (19.4–106 kHz), undervoltage lockout thresholds (VCCUV± = 7.4–9.2 V), matched propagation delays, and micropower startup current (125 µA typ.).
Technical Context
The IR2155PBF integrates a 555-timer–like programmable oscillator with RT/CT inputs, generating fixed-frequency square waves to control both high- and low-side outputs. Its HVIC process enables robust floating channel operation referenced to VS, supporting bootstrap gate drive for high-side N-MOSFETs in half-bridge topologies.
Internal deadtime insertion (0.5–2.25 µs) prevents shoot-through, while matched propagation delays ensure precise 50% duty cycle timing. The device includes dual UVLO circuits - one for VCC (7.4–9.2 V hysteresis) and one for VBS (7.3–9.2 V hysteresis) - with independent startup currents (IQCCUV = 70–150 µA, IQBSUV = 55–125 µA).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VOFFSET | 600 V max - supports high-side switching directly from rectified line voltages up to 600 V DC |
| Duty Cycle | 48–52 % - tightly controlled for symmetrical half-bridge operation and transformer reset |
| IO+/IO− | 210 mA / 420 mA - sufficient peak current to charge/discharge gate capacitance of medium-power MOSFETs |
| Deadtime | 0.5–2.25 µs typ. - prevents cross-conduction in half-bridge by enforcing non-overlapping HO/LO drive |
| fOSC | 19.4–106 kHz - programmable via RT (7.04–35.7 kΩ) and CT (1 nF typical), enabling flexible SMPS design |
| VCLAMP | 14.4–16.8 V - internal zener clamp sets nominal VCC supply at ~15.6 V when driven from high-impedance source |
| IQCCUV | 70–150 µA - ultra-low startup current enables direct connection to rectified AC line without auxiliary winding |
Pinout & Package
IR2155PBF is housed in an 8-lead PDIP package with creepage/clearance rated for 600 V operation. Pin assignments are validated per Infineon's official lead diagram (01-3003 01).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RT | Oscillator timing resistor input | Controls oscillator frequency; output is in phase with LO for synchronous timing reference |
| CT | Oscillator timing capacitor input | Together with RT, sets fOSC per f = 1 / [1.4 × (RT + 150 Ω) × CT]; defines switching period |
| VB | High-side floating supply | Provides bias for high-side driver stage; referenced to VS, not COM |
| HO | High-side gate drive output | Drives gate of high-side N-MOSFET; floats with VS up to +600 V relative to COM |
| VS | High-side floating supply return | Reference node for VB and HO; connects to source of high-side switch |
| VCC | Low-side and logic supply | Fixed 12–15.6 V supply for logic and low-side driver; internally clamped |
| LO | Low-side gate drive output | Drives gate of low-side N-MOSFET; referenced to COM, in phase with RT signal |
| COM | Low-side return | Common ground reference for VCC, LO, RT, CT, and logic circuitry |
Key Features
| Feature | Design Value |
|---|---|
| Floating channel with +600 V offset tolerance | Enables direct high-side drive in offline half-bridge converters without level-shifting ICs or isolated supplies |
| Programmable oscillator with RT/CT interface | Eliminates external clock generator; frequency set by two passive components with ±3% accuracy |
| Matched propagation delays for HO/LO | Ensures precise 50% duty cycle symmetry critical for transformer-coupled forward and push-pull topologies |
| Dual independent UVLO (VCC and VBS) | Prevents erratic switching during brownout by disabling outputs until both supplies exceed lockout thresholds |
| Micropower startup current (125 µA typ.) | Allows direct VCC derivation from rectified line via high-value resistor, avoiding auxiliary winding complexity |
Applications
| AC-DC Off-line SMPS | Half-Bridge Induction Heating |
|---|---|
Use Scenario: 100–500 W universal-input flyback or forward converter powering industrial control systems. IC Role / Device Role / Timing Role: Self-oscillating gate driver controlling high- and low-side MOSFETs in half-bridge configuration; provides fixed-frequency PWM with built-in deadtime. Use Value: Reduces BOM count by integrating oscillator, level shift, and matched drivers - no external clock or timing IC required. | Use Scenario: Medium-power resonant induction heater driving series-resonant tank at 20–100 kHz. IC Role / Device Role / Timing Role: Half-bridge driver with programmable frequency and tight deadtime control to maintain zero-voltage switching (ZVS) across load variations. Use Value: Internal deadtime (1.2 µs typ.) prevents shoot-through during high di/dt switching, improving reliability in thermally demanding environments. |
| LED Driver for High-Voltage AC Input | DC-DC Isolated Forward Converter |
Use Scenario: Constant-current LED driver accepting 85–265 VAC input with integrated PFC-less topology. IC Role / Device Role / Timing Role: Gate driver for high-side switch in buck-derived half-bridge LED current regulator; operates directly from rectified line. Use Value: 600 V offset rating and micropower startup allow direct VCC derivation from bulk capacitor - no auxiliary supply needed. | Use Scenario: Telecom or server DC-DC module converting 48 V input to 12 V/20 A output using forward topology with active clamp. IC Role / Device Role / Timing Role: Synchronized half-bridge driver for primary-side switches; matched delays ensure accurate duty cycle delivery to transformer. Use Value: Propagation delay matching (<10 ns typical) minimizes timing skew, preserving transformer volt-second balance and preventing saturation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar self-oscillating half-bridge driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| IR2153PBF | No internal oscillator; requires external RC or crystal timing; lower VOFFSET (600 V same), identical pinout | Suitable where external frequency control or synchronization is required | Choose when precise frequency locking or multi-phase interleaving is needed |
| IRS2153DPbF | Integrated bootstrap diode; higher IO+ (260 mA); same oscillator architecture and 600 V rating | Better suited for high-duty-cycle or high-frequency (>100 kHz) designs with reduced external component count | Prefer when simplifying bootstrap network and increasing gate drive margin is critical |
Compared with IR2155PBF, IR2153PBF offers external timing flexibility but adds component count, while IRS2153DPbF reduces bill-of-materials by integrating the bootstrap diode - both retain 600 V capability but differ in oscillator autonomy and drive strength.
Availability
IR2155PBF is available at Aetrix Electronics and suitable for AC-DC off-line SMPS, half-bridge induction heating, and high-voltage LED driver applications requiring stable component supply and long-term industrial availability.
Supply support for IR2155PBF 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 industrial standards.
The IR2155PBF belongs to Infineon's legacy high-voltage gate driver product line, designed specifically for cost-sensitive, self-oscillating half-bridge power conversion in industrial and consumer off-line power supplies.
FAQ
What is the maximum allowable dV/dt on the VS pin?
The IR2155PBF is rated for 50 V/ns dV/dt immunity on the VS pin under recommended operating conditions. This specification ensures reliable operation during fast high-side switching transients in half-bridge configurations without false triggering or latch-up, provided PCB layout minimizes parasitic inductance in the VS return path.
Can IR2155PBF drive IGBTs directly?
Yes - the IR2155PBF can directly drive N-channel IGBTs with gate-emitter threshold voltages ≤ 5 V and gate charge requirements compatible with its 210 mA/420 mA peak output current. For high-Qg IGBTs, external gate resistors must be selected to limit peak current and control turn-on/turn-off speed within safe SOA limits.
How is VCC supplied in typical applications?
VCC is typically derived from the rectified AC line via a high-value resistor (e.g., 220 kΩ) and decoupled with a 1 µF capacitor to COM. The internal 15.6 V zener clamp regulates VCC, so no external regulator is needed - but the supply must be high-impedance to avoid exceeding the clamp's power rating.
Is IR2155PBF RoHS-compliant?
Yes - the "PBF" suffix denotes lead-free (Pb-free) construction per RoHS Directive 2011/65/EU. The device uses matte tin lead finish and meets JEDEC J-STD-020 moisture sensitivity level 3, with reflow profile compliance verified per Infineon's packaging documentation.
IR2155PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Driven Configuration:
- Half-Bridge
- Channel Type:
- Synchronous
- Number of Drivers:
- 2
- Gate Type:
- IGBT, N-Channel MOSFET
- Voltage - Supply:
- 10V ~ 20V
- Logic Voltage - VIL, VIH:
- -
- Current - Peak Output (Source, Sink):
- 250mA, 500mA
- Input Type:
- RC Input Circuit
- High Side Voltage - Max (Bootstrap):
- 600 V
- Rise / Fall Time (Typ):
- 80ns, 45ns
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 8-PDIP
IR2155PBF FAQ
1.How can I place an order for IR2155PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for IR2155PBF 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 IR2155PBF reliable?
The price and inventory of IR2155PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IR2155PBF is usually 5 days.
3.What payment methods are accepted for IR2155PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IR2155PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for IR2155PBF?
IR2155PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your IR2155PBF 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 IR2155PBF?
For technical support, including IR2155PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IR2155PBF requirements.
6.How does Aetrix verify that IR2155PBF is sourced from the original manufacturer or authorized distributors?
All IR2155PBF 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 IR2155PBF meets industry standards.
7.What is the process for return or replacement of IR2155PBF?
All IR2155PBF units undergo pre-shipment inspection (PSI). If there is an issue with IR2155PBF, 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 IR2155PBF part is unused and in its original packaging.
Return procedure for IR2155PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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