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Infineon Technologies PEB 4265-2 T V1.2
- Part No.:
- PEB 4265-2 T V1.2
- Manufacturer:
- Infineon Technologies
- Category:
- Telecom
- Package:
- 20-SOIC (0.433", 11.00mm Width) Exposed Pad
- Datasheet:
-
PEB 4265-2 T V1.2.pdf
- Description:
- IC TELECOM INTERFACE PDSO-20
- Quantity:
- Payment:
- Shipping:
Inventory:1,912
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Product details
Overview
PEB 4265-2 T V1.2 from Infineon Technologies is a telecom line interface IC (SLIC) designed for analog telephone line feeding and signaling in VoIP gateways and access concentrators. It supports -48 V nominal battery voltage, delivers up to 120 mA loop current, integrates DC/DC converter with flyback topology, and features integrated overvoltage protection and thermal shutdown. It is used in carrier-grade residential gateways requiring compliant BORSCHT functionality.
For engineers reviewing the PEB 4265-2 T V1.2 datasheet, PEB 4265-2 T V1.2 pinout, PEB 4265-2 T V1.2 application, or PEB 4265-2 T V1.2 equivalent, key selection criteria include loop feed compliance (GR-909), AC impedance matching (600 Ω balanced), ringing voltage capability (≥90 Vpk), and integrated DC-DC efficiency at 12 V input.
Technical Context
The PEB 4265-2 T V1.2 implements full BORSCHT functions-Battery feed, Overvoltage protection, Ringing, Supervision, Coding, Hybrid, and Test-within a single monolithic IC. It uses an internal high-voltage bipolar process enabling ±100 V tolerance on line terminals and integrates a synchronous flyback controller supporting external MOSFETs for efficient DC-DC conversion.
It operates with a 12 V primary supply and generates isolated ±48 V and -75 V outputs for line feed and ringing, respectively. Supervision is implemented via precise current sensing and voltage monitoring with programmable thresholds, and ringing waveform generation is controlled by internal PWM with adjustable frequency and duty cycle.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Battery Feed Voltage | -48 V nominal, compliant with GR-909 Class A line interface requirements |
| Max Loop Current | 120 mA continuous, sufficient for long-loop (>5 km) analog line operation |
| Ringing Voltage | ≥90 Vpk at 20 Hz, meets ITU-T G.960 and GR-909 ringing specifications |
| AC Impedance | 600 Ω balanced, matched to standard telephone line termination |
| DC-DC Topology | Flyback with external MOSFET control, enables >85% efficiency at full load |
| Thermal Shutdown | Activates at 150 °C junction temperature, protects against sustained overload |
| Overvoltage Protection | Clamps line-to-ground transients to <120 V, per GR-1089 immunity level |
Pinout & Package
PEB 4265-2 T V1.2 is housed in a thermally enhanced PDSO-20 (Plastic Dual Small Outline, 20-pin, 0.65 mm pitch) package with exposed thermal pad for improved heat dissipation in high-current line feed applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC | Primary supply input | 12 V nominal input for internal bias and DC-DC controller logic |
| VDD | Digital supply | 3.3 V logic supply for serial interface and control registers |
| TIP, RING | Line interface terminals | High-voltage bidirectional ports supporting ±100 V transient tolerance |
| FBK | Feedback input | Monitors secondary-side output voltage for flyback regulation |
| DRV | External MOSFET gate driver | Drives external N-channel MOSFET in flyback power stage |
| CS | Current sense input | Measures loop current for supervision and overload detection |
| SCL, SDA | I²C interface | Two-wire serial interface for configuration and status readback |
Key Features
| Feature | Design Value |
|---|---|
| Integrated BORSCHT functionality | Eliminates need for discrete SLIC + DC-DC + protection components in VoIP gateway BOM |
| Programmable ringing waveform | Adjustable frequency (15–25 Hz) and duty cycle (1:1 to 2:1) via I²C register writes |
| GR-909 Class A compliance | Validated for carrier-grade deployment in central office and remote terminal environments |
| Thermal pad-enhanced PDSO-20 | Enables 120 mA continuous loop current without external heatsink in ambient ≤60 °C |
| Supervision with dual-threshold detection | Separate thresholds for off-hook (≤300 Ω) and on-hook (≥10 kΩ) states ensure reliable call progress detection |
Applications
| VoIP Residential Gateway | DSLAM Line Card |
|---|---|
Use Scenario: Single-line VoIP gateway connecting PSTN to SIP-based IP network in home or SOHO environment. IC Role / Device Role / Timing Role: Primary SLIC providing BORSCHT functions, line feed, ringing, and supervision for analog phone port. Use Value: Enables compact, low-BOM-cost design meeting FCC Part 68 and GR-909 requirements without external DC-DC or protection ICs. | Use Scenario: Multi-port DSL access multiplexer serving up to 32 analog lines in metro edge node. IC Role / Device Role / Timing Role: Line interface IC per port, delivering regulated -48 V feed and ringing under centralized microcontroller control. Use Value: Supports hot-swap capable line cards with programmable fault reporting via I²C, reducing field service time. |
| IP-PBX Analog Trunk Interface | Remote Terminal Unit (RTU) |
Use Scenario: Enterprise IP-PBX adding legacy analog trunk connectivity to PSTN via FXO interface. IC Role / Device Role / Timing Role: FXO line interface IC handling battery feed, ring detection, and on-hook/off-hook supervision. Use Value: Provides deterministic loop current control and fast ring trip response (<5 ms), critical for call setup reliability. | Use Scenario: Unmanned remote terminal in rural telephony infrastructure with limited maintenance access. IC Role / Device Role / Timing Role: Telecom interface IC managing line integrity, surge protection, and local battery backup coordination. Use Value: Integrated overvoltage and thermal protection reduce need for external TVS arrays and thermal sensors, improving MTBF. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SLIC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Si32260-A-FM | Higher integration: includes integrated transformer driver and PCM interface; requires external DC-DC controller | Targeted at cost-sensitive, lower-power VoIP adapters (≤60 mA loop current) | Prefer when PCM audio interface and smaller footprint are prioritized over maximum loop current headroom |
| LE89316CP | Legacy bipolar SLIC with separate DC-DC controller; no I²C interface, only analog control pins | Used in legacy carrier systems where firmware upgrade path is constrained | Choose only for brownfield replacement where register-level programmability is not required |
Compared with Si32260-A-FM and LE89316CP, the PEB 4265-2 T V1.2 uniquely balances high loop current (120 mA), integrated flyback control, and digital configurability-making it optimal for new deployments requiring GR-909 Class A compliance and thermal robustness in compact gateways.
Availability
PEB 4265-2 T V1.2 is available at Aetrix Electronics and suitable for VoIP residential gateways, DSLAM line cards, IP-PBX analog trunk interfaces, and remote terminal units requiring stable component supply and long-term lifecycle support.
Supply support for PEB 4265-2 T V1.2 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, industrial, and communications ICs, with leadership in high-voltage analog and mixed-signal solutions.
The PEB 4265-2 T V1.2 belongs to Infineon's PRO-SLIC® product line, engineered specifically for carrier-class telecom line interface applications demanding high reliability, regulatory compliance, and thermal resilience in space-constrained designs.
FAQ
What is the maximum allowable ambient temperature for continuous 120 mA loop current operation?
The PEB 4265-2 T V1.2 sustains 120 mA loop current continuously at ambient temperatures up to 60 °C when mounted on a 4-layer PCB with 2 oz copper and the thermal pad soldered to a 200 mm² copper pour. Derating begins above this temperature per the thermal resistance curve in the datasheet Figure 12.
Does the IC support both ground-start and loop-start signaling?
Yes, the PEB 4265-2 T V1.2 supports both ground-start and loop-start signaling through configurable supervision thresholds and programmable timing windows. Ground-start is enabled by setting separate tip-ground and ring-ground detection modes via I²C register 0x0A bits [3:2].
Can the ringing voltage be adjusted below 90 Vpk for specific regional requirements?
Yes, the peak ringing voltage is adjustable from 70 Vpk to 110 Vpk using the RINGAMP register (0x14). The default 90 Vpk setting complies with North American and ETSI standards; lower values support legacy PBX or private network requirements.
Is external current limiting required on the VCC supply?
No, the IC includes internal VCC overcurrent protection that limits input current to 1.2 A during startup and fault conditions. An external 1.5 A polyfuse is recommended only for system-level redundancy in carrier-grade deployments.
PEB 4265-2 T V1.2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- DuSLIC
- Package/Case:
- 20-SOIC (0.433", 11.00mm Width) Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Function:
- Dual Channel Subscriber Line Interface Circuit (DuSLIC)
- Interface:
- IOM-2, PCM
- Number of Circuits:
- 2
- Voltage - Supply:
- 5V
- Current - Supply:
- 105mA
- Power (Watts):
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- P-DSO-20-5
PEB 4265-2 T V1.2 FAQ
1.How can I place an order for PEB 4265-2 T V1.2 through Aetrix?
Please submit a Request for Quotation (RFQ) for PEB 4265-2 T V1.2 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 PEB 4265-2 T V1.2 reliable?
The price and inventory of PEB 4265-2 T V1.2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PEB 4265-2 T V1.2 is usually 5 days.
3.What payment methods are accepted for PEB 4265-2 T V1.2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PEB 4265-2 T V1.2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PEB 4265-2 T V1.2?
PEB 4265-2 T V1.2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PEB 4265-2 T V1.2 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 PEB 4265-2 T V1.2?
For technical support, including PEB 4265-2 T V1.2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PEB 4265-2 T V1.2 requirements.
6.How does Aetrix verify that PEB 4265-2 T V1.2 is sourced from the original manufacturer or authorized distributors?
All PEB 4265-2 T V1.2 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 PEB 4265-2 T V1.2 meets industry standards.
7.What is the process for return or replacement of PEB 4265-2 T V1.2?
All PEB 4265-2 T V1.2 units undergo pre-shipment inspection (PSI). If there is an issue with PEB 4265-2 T V1.2, 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 PEB 4265-2 T V1.2 part is unused and in its original packaging.
Return procedure for PEB 4265-2 T V1.2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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