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Infineon Technologies IR1167BSTRPBF
- Part No.:
- IR1167BSTRPBF
- Manufacturer:
- Infineon Technologies
- Category:
- Gate Drivers
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
IR1167BSTRPBF.pdf
- Description:
- IC GATE DRVR LOW-SIDE 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,598
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Product details
Overview
IR1167BSTRPBF from Infineon Technologies (formerly International Rectifier) is a secondary-side synchronous rectifier controller IC for flyback converters, supporting DCM/CrCM/CCM operation with 200 V drain-sense capability, 14.5 V gate-drive clamp, 40 ns turn-off propagation delay, and 7 A peak sink current. It drives N-channel MOSFETs to replace Schottky diodes in high-efficiency AC-DC adapters and server SMPS.
For engineers reviewing the IR1167BSTRPBF datasheet, IR1167BSTRPBF pinout, IR1167BSTRPBF application, or IR1167BSTRPBF equivalent, key selection criteria include gate-drive clamp voltage (14.5 V), drain-sense voltage rating (200 V), propagation delays (60 ns on / 40 ns off), UVLO thresholds (9.7 V off / 10.5 V on), and compatibility with <1 W standby designs per Energy Star requirements.
Technical Context
This IC implements differential drain-to-source voltage sensing to detect zero-current crossing and control MOSFET switching timing in isolated flyback topologies. Its internal comparator features programmable blanking (9–25 µs), double-pulse suppression, and three-turn-on threshold modes dependent on OVT pin state.
The driver stage delivers 2 A source / 7 A sink peak current with internally clamped 14.5 V high-side gate drive, enabling fast turn-on/turn-off of paralleled N-MOSFETs. UVLO hysteresis (1.55 V typical) and micropower start-up (<200 µA) support robust low-power operation across 11.3–20 V VCC range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VD Rating | 200 V max drain-sense voltage enables direct connection to primary-referred secondary winding without external divider |
| Gate Drive Clamp | 14.5 V (IR1167B variant) limits MOSFET VGS to prevent overdrive and ensure safe SOA operation |
| Turn-off Delay | 40 ns typ. ensures precise zero-current switching timing to minimize reverse conduction loss |
| Peak Sink Current | 7 A supports rapid discharge of large gate capacitances in paralleled MOSFET configurations |
| VCC Range | 11.3 V to 20 V accommodates wide input variations in auxiliary winding-derived supplies |
| Quiescent Current | 2.2 mA typ. at 400 kHz enables compliance with <1 W no-load standby power targets |
| Min On Time | 240 ns typ. prevents shoot-through in high-frequency CrCM/CCM operation with tight duty cycles |
Pinout & Package
IR1167BSTRPBF is housed in an 8-lead SOIC package (SOIC-8N), surface-mount compatible with standard reflow profiles and IPC-7351B footprint IPC7351SOIC8_N.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC (Pin 1) | Supply input | Accepts 11.3–20 V bias; powers internal regulator and gate driver; includes UVLO detection |
| VD (Pin 5) | Drain sense input | Differential high-voltage input referenced to VS; senses MOSFET drain for ZCD detection |
| VS (Pin 6) | Source sense input | Low-side reference for VD; connects to MOSFET source node to enable accurate VDS monitoring |
| MOT (Pin 3) | Driver output | High-current gate driver output (2 A source / 7 A sink); directly drives N-MOSFET gate |
| OVT (Pin 2) | Overvoltage threshold select | Configures comparator trip points: grounded = -7 mV, floating = -10.5 mV, tied to VCC = -15 mV |
| EN (Pin 4) | Enable control | Active-high logic input (2.15–3.2 V high threshold); disables driver when pulled low or open |
| GND (Pin 7) | Power ground | Reference return for all analog and power circuits; must be low-inductance connection to PCB ground plane |
| VGATE (Pin 8) | Gate drive return | Separate Kelvin return for gate loop; minimizes noise coupling into sensitive sensing paths |
Key Features
| Feature | Design Value |
|---|---|
| Differential VDS sensing | Enables accurate zero-current detection across temperature and process variation without auxiliary winding |
| Programmable blanking window | 9–25 µs adjustable via RMOT resistor to suppress false triggering during transformer ringing |
| Triple-threshold comparator | Three selectable turn-on thresholds via OVT pin simplify design across varying leakage and layout parasitics |
| Ultra-low quiescent current | 2.2 mA typical operating current allows full functionality while meeting sub-1W standby requirements |
| Integrated gate drive clamp | 14.5 V fixed clamp eliminates need for external Zener, reducing BOM count and improving reliability |
Applications
| LCD & PDP TV Power Supplies | Server SMPS Units |
|---|---|
Use Scenario: 24–48 V output, multi-rail flyback converter delivering <1 W standby power under Energy Star v6.0. IC Role / Device Role / Timing Role: Secondary-side SR controller detecting VDS zero-crossing to switch N-MOSFET synchronously with primary-side PWM. Use Value: Reduces rectifier conduction loss by >40% vs. Schottky diode, enabling 89%+ efficiency at 20% load. | Use Scenario: High-density 12 V/24 V flyback used in redundant server PSU front-end stages. IC Role / Device Role / Timing Role: Controls paralleled N-MOSFETs on secondary side to maintain tight regulation and low thermal rise at 500 kHz switching. Use Value: 7 A sink current ensures <50 ns MOSFET turn-off even with 10 nF total gate charge, minimizing reverse recovery loss. |
| Telecom AC-DC Adapters | ATX Auxiliary Power Supplies |
Use Scenario: Universal-input (90–264 VAC), 12 V/3 A adapter for telecom base station management modules. IC Role / Device Role / Timing Role: Synchronous rectifier driver operating in CrCM to meet IEC 62368-1 creepage/clearance and efficiency mandates. Use Value: 200 V VD rating allows direct sensing without resistive divider, saving space and improving transient response. | Use Scenario: +5 VSB rail in ATX PSUs requiring <0.5 W no-load consumption and fast wake-up response. IC Role / Device Role / Timing Role: Enables ultra-low IQ operation with 200 µA start-up current and sleep mode activation via EN pin. Use Value: Micropower start-up and 150–200 µA sleep current ensure CECP Tier 2 compliance without auxiliary LDO. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar secondary-side synchronous rectifier controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| UCC24612DR | Higher VD rating (250 V), integrated adaptive dead-time control, 3.3 V logic-compatible EN | Supports higher primary-side voltages and variable-frequency LLC; requires external VCC bootstrap | Preferred for new designs targeting >200 V reflected transients or LLC-derived secondaries |
| SRK1001TR | Fixed 12 V gate clamp, lower peak sink (4 A), no OVT pin configuration | Simpler layout but less flexible threshold tuning; limited to DCM-only flyback with low leakage | Cost-sensitive DCM-only adapters where 200 V VD margin and multi-mode operation are not required |
Compared with UCC24612DR and SRK1001TR, IR1167BSTRPBF offers unique 14.5 V gate clamp and triple-threshold OVT flexibility for optimizing noise immunity in high-leakage CrCM/CCM flybacks, while maintaining lowest system component count among 200 V-rated SR controllers.
Availability
IR1167BSTRPBF is available at Aetrix Electronics and suitable for LCD TV power supplies, server SMPS units, and telecom AC-DC adapters requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for IR1167BSTRPBF 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 global semiconductor leader specializing in power management, automotive, and industrial control solutions, with legacy expertise from International Rectifier's high-voltage analog IC portfolio.
IR1167BSTRPBF belongs to the SMARTRECTIFIER™ family of secondary-side SR controllers, designed specifically to replace Schottky diodes in isolated flyback converters while achieving sub-1 W standby power and >90% full-load efficiency.
FAQ
What is the function of the OVT pin on IR1167BSTRPBF?
The OVT pin selects one of three comparator turn-on thresholds: –7 mV (OVT = GND), –10.5 mV (OVT floating), or –15 mV (OVT = VCC). This allows designers to compensate for transformer leakage inductance and PCB layout parasitics without changing external components, ensuring reliable zero-current detection across operating conditions.
Can IR1167BSTRPBF drive multiple paralleled MOSFETs?
Yes - its 7 A peak sink current and 2 A source current support driving multiple N-channel MOSFETs in parallel. The VGATE and GND pins use separate Kelvin connections to minimize gate-loop inductance, preserving timing accuracy and preventing oscillation during high di/dt transitions in multi-FET configurations.
How does IR1167BSTRPBF achieve <1 W standby compliance?
It achieves sub-1 W standby through 200 µA start-up current, 150–200 µA sleep current when EN is low, and 2.2 mA typical operating current at 400 kHz. Combined with minimal external component count and no need for auxiliary bias windings, it meets Energy Star v6.0 and CECP Tier 2 requirements without additional circuitry.
Is IR1167BSTRPBF pin-compatible with IR1167ASTRPBF?
Yes - both share identical SOIC-8 pinout, electrical characteristics, and functional block diagram. The only difference is gate-drive clamp voltage: IR1167A uses 10.7 V, IR1167B uses 14.5 V. This allows direct substitution where higher VGS is needed for low-RDS(on) MOSFETs, with no layout or schematic changes required.
IR1167BSTRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- SmartRectifier™
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Driven Configuration:
- Low-Side
- Channel Type:
- Single
- Number of Drivers:
- 1
- Gate Type:
- N-Channel MOSFET
- Voltage - Supply:
- 12V ~ 18V
- Logic Voltage - VIL, VIH:
- 2V, 2.15V
- Current - Peak Output (Source, Sink):
- 2A, 7A
- Input Type:
- Non-Inverting
- High Side Voltage - Max (Bootstrap):
- -
- Rise / Fall Time (Typ):
- 18ns, 10ns
- Operating Temperature:
- -25°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
IR1167BSTRPBF FAQ
1.How can I place an order for IR1167BSTRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for IR1167BSTRPBF 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 IR1167BSTRPBF reliable?
The price and inventory of IR1167BSTRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IR1167BSTRPBF is usually 5 days.
3.What payment methods are accepted for IR1167BSTRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IR1167BSTRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for IR1167BSTRPBF?
IR1167BSTRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your IR1167BSTRPBF 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 IR1167BSTRPBF?
For technical support, including IR1167BSTRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IR1167BSTRPBF requirements.
6.How does Aetrix verify that IR1167BSTRPBF is sourced from the original manufacturer or authorized distributors?
All IR1167BSTRPBF 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 IR1167BSTRPBF meets industry standards.
7.What is the process for return or replacement of IR1167BSTRPBF?
All IR1167BSTRPBF units undergo pre-shipment inspection (PSI). If there is an issue with IR1167BSTRPBF, 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 IR1167BSTRPBF part is unused and in its original packaging.
Return procedure for IR1167BSTRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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