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Infineon Technologies 111-3038PBF
- Part No.:
- 111-3038PBF
- Manufacturer:
- Infineon Technologies
- Category:
- OR Controllers, Ideal Diodes
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
111-3038PBF.pdf
- Description:
- IC OR CTRLR N+1 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,168
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Product details
Overview
IR5001S from Infineon Technologies is a universal active ORing controller and N-channel MOSFET driver in SO-8 package, designed for redundant DC power path management. It provides 130 ns typical turn-off delay, 3 A peak gate drive current, and supports continuous 100 V input voltage on INP/INN/Vline pins. Used in carrier-class telecom equipment for -48 V input ORing and reverse polarity protection.
For engineers reviewing the IR5001S datasheet, IR5001S pinout, IR5001S application, or IR5001S equivalent, key selection criteria include asymmetric comparator offset (-4.0 mV typ), UVLO hysteresis (2.3 V typ), FETst output threshold (-300 mV typ), and dual biasing options (Vline or external Vcc).
Technical Context
The IR5001S integrates a high-speed comparator with asymmetrical offset (-4.0 mV) and 31 mV hysteresis to prevent light-load oscillation, coupled with an internal 12.5 V shunt regulator on Vcc. Its Vline-to-Vcc regulation enables direct biasing from 36–75 V telecom buses without external components.
It features integrated 70 kΩ high-voltage resistors and clamps on INP/INN, allowing safe operation at up to 100 V continuous input. The FETch/FETst interface provides bidirectional status signaling for redundancy monitoring in parallel power systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Vline Range | -5 V to 100 V continuous - supports legacy -48 V and modern 100 V telecom rails without level-shifting circuitry |
| Turn-Off Delay | 130 ns typical - limits voltage sag during fault-induced reverse current in redundant DC systems |
| UVLO Hysteresis | 2.3 V typical - ensures stable startup/shutdown across temperature without external hysteresis networks |
| Comparator Offset | -4.0 mV typical - asymmetrical offset prevents oscillation at near-zero differential voltage conditions |
| FETst Threshold | -300 mV typical - enables precise detection of reverse current flow through N-FET drain-source path |
| Peak Gate Drive | 3 A sink/source - directly drives large Rds(on)-optimized N-channel ORing FETs without external buffers |
| Vcc Regulation | 12.5 V typical - powers internal circuitry and provides stable reference for gate drive under varying Vline |
Pinout & Package
SO-8 surface-mount package (θJA = 128°C/W); 8-pin layout with exposed thermal pad per Infineon PD60229 revB.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 Vline | IC power supply input | Bias source for internal shunt regulator; minimum 25 V required for operation; supports 36–75 V telecom bus |
| 2 Vcc | Regulated output / external bias input | Internally regulated ~12.5 V output; also accepts external bias via resistor when Vline < 25 V |
| 3 FETch | Status check input | Enables system-level interrogation of ORing FET state; used with FETst for redundancy handshake |
| 4 FETst | Status output | Active-low signal indicating FET conduction state; threshold -300 mV enables reverse-current detection |
| 5 INP | Comparator positive input | Connects to N-FET source; integrated 70 kΩ resistor + clamp enable direct 100 V-rated connection |
| 6 INN | Comparator negative input | Connects to N-FET drain; same HV protection as INP; differential sensing determines gate drive polarity |
| 7 Gnd | Signal and power ground | Common reference for all analog and digital functions; decoupling capacitor required on Vcc–Gnd |
| 8 Vout | N-FET gate driver output | Direct gate drive output with 3 A peak capability; logic-level compatible with standard N-channel MOSFETs |
Key Features
| Feature | Design Value |
|---|---|
| Asymmetrical comparator offset | -4.0 mV typical - eliminates need for external hysteresis compensation at light loads |
| Integrated 100 V input clamps | On INP, INN, and Vline - removes requirement for external TVS diodes in telecom-grade designs |
| Dual biasing architecture | Vline-direct or external Vcc-resistor - supports both high-voltage telecom and low-voltage industrial rails |
| FET status signaling pair | FETch/FETst bidirectional interface - enables real-time redundancy monitoring without additional microcontroller I/O |
| Short-circuit tolerant gate drive | Withstands continuous gate short - eliminates risk of driver latch-up during FET failure events |
Applications
| Telecom -48 V Input ORing | DC-DC Output ORing |
|---|---|
Use Scenario: Dual -48 V rectifier inputs feeding common backplane in carrier-grade switching systems. IC Role / Device Role / Timing Role: Active ORing controller managing N-FETs to isolate failed input while maintaining uninterrupted load power. Use Value: 130 ns turn-off delay minimizes voltage sag during input fault, preserving system uptime per GR-1089 compliance. | Use Scenario: Parallel 12 V outputs from redundant DC-DC converters powering baseband processing units. IC Role / Device Role / Timing Role: Output-side ORing controller ensuring seamless switchover between converters during overcurrent or thermal shutdown. Use Value: Asymmetric comparator offset prevents false turn-off during transient load steps, improving converter stability. |
| Reverse Polarity Protection | Redundant AC-DC Rectifier ORing |
Use Scenario: 24 V DC input to industrial PLC I/O module where accidental reverse connection must not damage downstream circuitry. IC Role / Device Role / Timing Role: Reverse polarity guard using N-FET in series with input rail; IR5001S disables FET if INN > INP. Use Value: Integrated 100 V clamps on INP/INN allow direct connection without external protection, reducing BOM count by 3 components. | Use Scenario: Dual 48 V AC-DC rectifiers supplying telecom shelf power with hot-swap capability. IC Role / Device Role / Timing Role: ORing controller enabling automatic load sharing and isolation of failed rectifier without manual intervention. Use Value: FETst output signals rectifier health to shelf management controller, enabling predictive maintenance alerts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar active ORing controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LTC4357 | Higher 250 ns turn-off delay; requires external Vcc bias; no integrated Vline regulator | Targeted at lower-voltage (≤36 V) industrial systems; lacks telecom-specific UVLO thresholds | Select when designing for 12–24 V DC systems with existing bias rails and less stringent fault response timing |
| TPS23521 | Designed for PoE PSE applications; includes IEEE 802.3at classification; no FETch/FETst interface | Optimized for powered device detection and current limiting, not ORing control | Choose only for Power over Ethernet infrastructure; not suitable for telecom ORing or reverse polarity use cases |
Compared with LTC4357 and TPS23521, the IR5001S uniquely combines telecom-grade UVLO (9.6 V ON / 7.2 V OFF), integrated Vline regulation, and FETch/FETst status signaling-making it the only option qualified for carrier-class -48 V redundant power systems requiring sub-150 ns fault response.
Availability
IR5001S is available at Aetrix Electronics and suitable for carrier-class telecommunications equipment, redundant DC-DC power supplies, and industrial reverse polarity protection requiring stable component supply and long-term lifecycle support.
Supply support for IR5001S 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 IR5001S belongs to Infineon's Active ORing Controller product line, engineered specifically for high-reliability telecom and datacom power systems requiring fast fault isolation, reverse polarity immunity, and seamless redundancy management.
FAQ
What is the minimum Vline voltage required to operate the IR5001S?
The IR5001S requires a minimum of 25 V applied to the Vline pin to bias the internal shunt regulator and ensure proper operation. Below this threshold, the IC must be powered via the Vcc pin using an external bias resistor and voltage source above 10.7 V, as specified in the UVLO ON threshold.
Can the IR5001S drive high-Rds(on) MOSFETs effectively?
Yes - the IR5001S delivers 3 A peak gate drive current and supports gate voltages up to 12.5 V, enabling robust turn-on of high-Rds(on) N-channel MOSFETs commonly used in telecom ORing to minimize conduction loss at high currents. Its fast 130 ns turn-off further ensures reliable fault handling regardless of FET size.
How does the FETst pin indicate reverse current condition?
The FETst pin asserts a logic-low signal when the voltage difference (INP – INN) falls below -300 mV (typical), indicating reverse current flow through the N-FET. This threshold is factory-trimmed and temperature-compensated, providing deterministic fault detection without software polling or external comparators.
Is external decoupling required on the Vcc pin?
Yes - a minimum 0.1 µF ceramic capacitor must be placed between Vcc and Gnd, as specified in the Absolute Maximum Ratings section. This stabilizes the internal shunt regulator, suppresses switching noise from Vout, and prevents UVLO chatter during transient load events on the gate drive output.
111-3038PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Type:
- N+1 ORing Controller
- FET Type:
- N-Channel
- Ratio - Input:Output:
- N:1
- Internal Switch(s):
- No
- Delay Time - ON:
- 27 µs
- Delay Time - OFF:
- 130 ns
- Current - Output (Max):
- -
- Current - Supply:
- 500 µA
- Voltage - Supply:
- 36V ~ 75V
- Applications:
- -48V Dist Power Systems
- Operating Temperature:
- 0°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
111-3038PBF FAQ
1.How can I place an order for 111-3038PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for 111-3038PBF 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 111-3038PBF reliable?
The price and inventory of 111-3038PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 111-3038PBF is usually 5 days.
3.What payment methods are accepted for 111-3038PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 111-3038PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 111-3038PBF?
111-3038PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 111-3038PBF 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 111-3038PBF?
For technical support, including 111-3038PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 111-3038PBF requirements.
6.How does Aetrix verify that 111-3038PBF is sourced from the original manufacturer or authorized distributors?
All 111-3038PBF 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 111-3038PBF meets industry standards.
7.What is the process for return or replacement of 111-3038PBF?
All 111-3038PBF units undergo pre-shipment inspection (PSI). If there is an issue with 111-3038PBF, 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 111-3038PBF part is unused and in its original packaging.
Return procedure for 111-3038PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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