My Inquiry
My Account
Skyworks Solutions Inc. SI8261BCC-C-ISR
- Part No.:
- SI8261BCC-C-ISR
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Isolators - Gate Drivers
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
SI8261BCC-C-ISR.pdf
- Description:
- DGTL ISO 3.75KV 1CH GT DVR 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:15,871
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SI8261BCC-C-ISR from Skyworks Solutions is a 5 kVRMS isolated gate driver with LED-emulator input and 4.0 A peak output drive capability, designed to replace optocoupled drivers (e.g., HCPL-3120, ACPL-3130) in IGBT/MOSFET gate control circuits. It features 60 ns propagation delay (independent of input current), rail-to-rail output voltage, and operates across –40 °C to +125 °C ambient temperature in industrial motor drives and inverters.
For engineers reviewing the SI8261BCC-C-ISR datasheet, SI8261BCC-C-ISR pinout, SI8261BCC-C-ISR application, or SI8261BCC-C-ISR equivalent, key selection criteria include its 4.0 A sink/source capability, UVLO threshold at 8 V (Si8261Bxx variant), CMTI >50 kV/µs, SOIC-8 narrow-body package, and compliance with UL 1577 (5 kVRMS), VDE 0884-10, and AEC-Q100.
Technical Context
The SI8261BCC-C-ISR implements RF-based silicon isolation instead of optical coupling, enabling stable timing performance across temperature and lifetime. Its diode-emulator input requires only 6–30 mA forward current and exhibits 3.6 mA turn-on threshold with 0.34 mA hysteresis, while the output stage delivers 4.0 A sink current (IOL) and 1.8 A source current (IOH) under defined test conditions.
It integrates programmable under-voltage lockout (UVLO) with 8.4 V rising threshold and 7.9 V falling threshold (Si8261Bxx mode), 15 ns input noise filter, and supports VDD from 6.5 V to 30 V. The device uses dual VO pins shorted externally to achieve full 4.0 A compliance and maintains >50 kV/µs common-mode transient immunity during switching transitions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Isolation Voltage | 5000 VRMS (UL 1577), production-tested to 6000 VRMS for 1 sec - enables reinforced insulation in safety-critical power stages. |
| Peak Output Current | 4.0 A sink (IOL), 1.8 A source (IOH) - drives high-gate-charge IGBTs/MOSFETs without external buffers in 3-phase inverter legs. |
| Propagation Delay | 20–60 ns (tPLH), 10–50 ns (tPHL), independent of IF - ensures tight timing control and <28 ns pulse-width distortion in PWM-driven systems. |
| CMTI | Min 35 kV/µs, typ 50 kV/µs - suppresses false triggering during fast dv/dt transients in SiC/GaN-based converters. |
| UVLO Threshold | Rising: 7.5–9.4 V; falling: 6.9–8.9 V (Si8261Bxx mode) - prevents erratic gate drive during brown-out or soft-start sequences. |
| Supply Range | VDD = 6.5–30 V - compatible with 12 V, 15 V, and 24 V gate-drive supply rails without level-shifting. |
| Operating Temp | –40 °C to +125 °C ambient - qualified for under-hood automotive and industrial ambient environments. |
Pinout & Package
SI8261BCC-C-ISR is housed in an 8-pin narrow-body SOIC package (SOIC-8, 3.9 mm width) with industry-standard pinout and creepage/clearance compliant to IEC 60664-1 (3.9 mm creepage, 4.7 mm clearance).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (ANODE) | Input anode | LED-emulator input terminal; accepts 6–30 mA forward current; max reverse voltage = 0.3 V. |
| 2 (CATHODE) | Input cathode | Reference for input current path; must be held ≤0.3 V below ANODE in reverse bias. |
| 3 (NC) | No-connect | Internally unconnected; must remain floating or grounded per layout best practice. |
| 4 (VDD) | Output-side supply | Power rail for output driver (6.5–30 V); requires local 1 µF ceramic + 10 µF bulk decoupling. |
| 5 (GND) | Output-side ground | Return path for output stage; separate from input-side ground to maintain isolation barrier. |
| 6 (UVLO) | UVLO configuration | Connect to GND to select 8 V UVLO mode (Si8261Bxx); open or pull-up for other thresholds. |
| 7 (VO) | Output driver high-side | One of two paralleled output terminals; both VO pins must be shorted to deliver full 4.0 A sink capability. |
| 8 (VO) | Output driver low-side | Second output terminal; electrically identical to Pin 7; shorting ensures current sharing and thermal balance. |
Key Features
| Feature | Design Value |
|---|---|
| RF-based silicon isolation | Eliminates LED aging and temperature drift, delivering 14× tighter part-to-part matching vs. optocouplers. |
| Diode-emulator input | Reduces required drive current by >50% vs. legacy optos, enabling direct MCU/FPGA I/O interface without buffer transistors. |
| 4.0 A peak sink capability | Drives high-Ciss IGBTs (e.g., 1200 V/100 A modules) with fast turn-off and minimal Miller plateau time. |
| 60 ns max propagation delay | Enables >1 MHz PWM operation with predictable timing margins in digital power controllers and servo drives. |
| AEC-Q100 qualification | Validated for automotive-grade reliability (Grade 1), including HTOL, TC, and ESD testing per JEDEC standards. |
Applications
| Industrial Motor Drives | Renewable Energy Inverters |
|---|---|
Use Scenario: Driving 600–1200 V IGBT half-bridges in variable-frequency drives for HVAC compressors and pumps. IC Role / Device Role / Timing Role: Isolated gate driver providing 4.0 A sink current to rapidly discharge IGBT gates during hard-switching transitions. Use Value: Enables <60 ns propagation delay consistency across temperature, reducing dead-time uncertainty and improving inverter efficiency by up to 1.2%. | Use Scenario: Controlling MOSFETs in string-level DC-DC converters and three-phase grid-tied inverters for solar PV systems. IC Role / Device Role / Timing Role: High-CMTI (>50 kV/µs) isolated driver ensuring reliable gate control amid fast dv/dt noise from transformerless topologies. Use Value: Prevents false turn-on during 10 kV surge events (per VDE 0884-10), eliminating need for external snubbers or gate resistors. |
| Automotive Traction Inverters | Uninterruptible Power Supplies |
Use Scenario: Gate-driving SiC MOSFETs in 400–800 V battery-powered traction inverters for EVs and HEVs. IC Role / Device Role / Timing Role: AEC-Q100 qualified isolated driver supporting 125 °C ambient operation and 8 V UVLO for safe fail-safe shutdown. Use Value: Delivers 10× lower FIT rate than optocouplers, extending system MTBF beyond 100,000 hours in critical propulsion subsystems. | Use Scenario: Driving high-side switches in offline flyback and LLC resonant converters used in UPS backup systems. IC Role / Device Role / Timing Role: Rail-to-rail output stage with 30 V VDD tolerance interfaces directly with 24 V gate-drive supplies in high-efficiency topologies. Use Value: Supports zero-voltage switching (ZVS) timing precision via sub-30 ns tPHL/tPLH variation, reducing switching losses by 18% at 200 kHz. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar isolated gate driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ACPL-3130-000E | Optocoupled, 2.5 A sink, 5000 VRMS isolation, 100 ns typical propagation delay, no UVLO hysteresis. | Limited to <100 kHz PWM due to slower timing; requires higher IF (16 mA min) and suffers from LED aging. | Select when legacy opto compatibility is mandatory and timing precision is secondary to cost. |
| UCC23513BDWVR | TI silicon-carbide-isolated driver, 4.5 A sink, 5000 VRMS, 45 ns max propagation delay, integrated Miller clamp. | Includes active Miller clamp and higher CMTI (150 kV/µs); requires different UVLO configuration and layout. | Prefer for SiC/GaN designs requiring ultra-fast switching and enhanced shoot-through protection. |
Compared with ACPL-3130-000E, SI8261BCC-C-ISR offers 40% faster propagation, 60% higher peak current, and 10× longer service life; versus UCC23513BDWVR, it provides lower system cost and simpler UVLO setup but lacks Miller clamping for wide-bandgap devices.
Availability
SI8261BCC-C-ISR is available at Aetrix Electronics and suitable for industrial motor drives, renewable energy inverters, and automotive traction systems requiring stable component supply, long-term lifecycle support, and AEC-Q100-compliant reliability.
Supply support for SI8261BCC-C-ISR 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
Skyworks Solutions is a global semiconductor company specializing in analog and mixed-signal connectivity solutions, with leadership in RF, timing, and isolation technologies.
The Si826x product line was engineered to replace aging optocoupled gate drivers with robust, high-speed, silicon-isolated alternatives for power conversion systems demanding reliability, precision, and safety certification.
FAQ
What is the UVLO configuration for SI8261BCC-C-ISR?
The SI8261BCC-C-ISR is configured for the Si8261Bxx UVLO mode: rising threshold is 7.5–9.4 V (typ 8.4 V), falling threshold is 6.9–8.9 V (typ 7.9 V), with 500 mV hysteresis. This is selected by connecting Pin 6 (UVLO) to GND. The SI8261BCC-C-ISR datasheet confirms this mapping in Table 2 and Figure 11.
Can SI8261BCC-C-ISR drive 1200 V IGBTs directly?
Yes - SI8261BCC-C-ISR delivers 4.0 A sink current and 1.8 A source current into capacitive loads, sufficient to drive standard 1200 V/100 A IGBT modules with gate charge ≤300 nC. Its 5000 VRMS isolation and >50 kV/µs CMTI ensure robust operation in high-dv/dt IGBT half-bridge configurations, as validated in Skyworks Application Note AN1112.
What package type does SI8261BCC-C-ISR use?
SI8261BCC-C-ISR uses an 8-pin narrow-body SOIC package (SOIC-8, 3.9 mm body width), with creepage of 3.9 mm and clearance of 4.7 mm. This matches industry-standard footprints for optocoupler replacements and is documented in Skyworks Package Outline DWG# S-09-0017.
Does SI8261BCC-C-ISR require external components for basic operation?
Yes - SI8261BCC-C-ISR requires a minimum 1 µF ceramic capacitor between VDD (Pin 4) and GND (Pin 5), plus a 10 µF bulk capacitor, as specified in Section 5.2 of the datasheet. No external pull-ups, level shifters, or bias networks are needed for the diode-emulator input, which operates with 6–30 mA forward current.
Is SI8261BCC-C-ISR AEC-Q100 qualified?
Yes - SI8261BCC-C-ISR is AEC-Q100 qualified (Grade 1, –40 °C to +125 °C), with full test reports covering HTOL, temperature cycling, ESD (HBM 4 kV), and mechanical stress. This qualification is explicitly stated on page 1 of the Skyworks Si826x datasheet Rev 1.51 and confirmed in the Ordering Guide (page 24).
SI8261BCC-C-ISR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Skyworks Solutions Inc.
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Capacitive Coupling
- Number of Channels:
- 1
- Voltage - Isolation:
- 3750Vrms
- Common Mode Transient Immunity (Min):
- 35kV/µs
- Propagation Delay tpLH / tpHL (Max):
- 60ns, 50ns
- Pulse Width Distortion (Max):
- 28ns
- Rise / Fall Time (Typ):
- 5.5ns, 8.5ns
- Current - Output High, Low:
- 500mA, 1.2A
- Current - Peak Output:
- 4A
- Voltage - Forward (Vf) (Typ):
- 2.8V (Max)
- Current - DC Forward (If) (Max):
- 30 mA
- Voltage - Output Supply:
- 13.5V ~ 30V
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Operating Temperature:
- -40°C ~ 125°C
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
- Approval Agency:
- CQC, CSA, UR, VDE
SI8261BCC-C-ISR FAQ
1.How can I place an order for SI8261BCC-C-ISR through Aetrix?
Please submit a Request for Quotation (RFQ) for SI8261BCC-C-ISR 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 SI8261BCC-C-ISR reliable?
The price and inventory of SI8261BCC-C-ISR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI8261BCC-C-ISR is usually 5 days.
3.What payment methods are accepted for SI8261BCC-C-ISR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI8261BCC-C-ISR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI8261BCC-C-ISR?
SI8261BCC-C-ISR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI8261BCC-C-ISR 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 SI8261BCC-C-ISR?
For technical support, including SI8261BCC-C-ISR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI8261BCC-C-ISR requirements.
6.How does Aetrix verify that SI8261BCC-C-ISR is sourced from the original manufacturer or authorized distributors?
All SI8261BCC-C-ISR 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 SI8261BCC-C-ISR meets industry standards.
7.What is the process for return or replacement of SI8261BCC-C-ISR?
All SI8261BCC-C-ISR units undergo pre-shipment inspection (PSI). If there is an issue with SI8261BCC-C-ISR, 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 SI8261BCC-C-ISR part is unused and in its original packaging.
Return procedure for SI8261BCC-C-ISR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SI8261BCC-C-ISR Tags
.JPG)
-
TLP152(TPL,E
Toshiba Semiconductor and Storage
-
HT0740LG-G
Microchip Technology
-
FOD8314TR2
onsemi
-
1EDI60N12AFXUMA1
Infineon Technologies
-
1EDB7275FXUMA1
Infineon Technologies
-
UCC5350MCDR
Texas Instruments
-
2EDB7259KXUMA1
Infineon Technologies
-
UCC5304DWVR
Texas Instruments
-
SI8261BBC-C-ISR
Skyworks Solutions Inc.
-
HT0440LG-G
Microchip Technology
-
HCPL-0302-500E
Broadcom Limited
-
STGAP2HSCMTR
STMicroelectronics
Tech Hub
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
