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Skyworks Solutions Inc. SI8233BB-C-ISR
- Part No.:
- SI8233BB-C-ISR
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Isolators - Gate Drivers
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
SI8233BB-C-ISR.pdf
- Description:
- DGTL ISO 2.5KV 2CH GT DVR 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,620
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Product details
Overview
SI8233BB-C-ISR from Silicon Labs is a 4.0 A peak-output, high-side/low-side isolated gate driver with 5 kVRMS input-to-output isolation, 60 ns max propagation delay, and programmable dead time. It uses silicon-based RF isolation for robust noise immunity and operates across –40 to +125 °C in motor control inverters and isolated DC-DC power supplies.
For engineers reviewing the SI8233BB-C-ISR datasheet, SI8233BB-C-ISR pinout, SI8233BB-C-ISR application, or SI8233BB-C-ISR equivalent, key selection factors include its 4.0 A sink/source capability, dual-channel independent control inputs (VIA/VIB), SOIC-16 wide-body package, overlap protection logic, and compliance with UL 1577, VDE 0884-5, and AEC-Q100.
Technical Context
The SI8233BB-C-ISR implements two independent isolated channels using RF-based on/off keying modulation across a semiconductor barrier-eliminating startup initialization and offering superior CMTI (>45 kV/µs). Each channel features TTL-compatible inputs with 400 mV hysteresis and separate undervoltage lockout (UVLO) thresholds for VDDI (4.0 V typ) and VDDA/VDDB (12.5 V typ).
It supports high-side/low-side topology with programmable dead time via external resistor (70–900 ns range), overlap protection to prevent shoot-through, and output drivers capable of driving MOSFET/IGBT gates directly at up to 8 MHz switching frequency. The device maintains reinforced insulation per IEC 60950-1 and IEC 60601-1.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Output Current | 4.0 A sink / 2.0 A source per channel - enables direct drive of high-gate-charge IGBTs and power MOSFETs without external buffers. |
| Propagation Delay | ≤60 ns max - ensures precise timing alignment in high-frequency half-bridge topologies (e.g., >500 kHz LLC resonant converters). |
| Input-to-Output Isolation | 5 kVRMS (UL 1577) - meets reinforced insulation requirements for industrial and medical power systems up to 600 VRMS working voltage. |
| Common-Mode Transient Immunity | >45 kV/µs - suppresses false triggering in noisy motor drive and inverter environments with fast dV/dt transients. |
| Operating Temperature | –40 to +125 °C - supports under-hood automotive and industrial ambient conditions without derating. |
| Supply Voltage Range | VDDI: 4.5–5.5 V; VDDA/VDDB: 6.5–24 V - accommodates standard 5 V logic and 12/15/24 V gate drive rails. |
| Programmable Dead Time | 70–900 ns via RDT - prevents cross-conduction in half-bridge configurations while enabling optimization for efficiency vs. shoot-through margin. |
Pinout & Package
SI8233BB-C-ISR is housed in a RoHS-compliant SOIC-16 wide-body package (10.3 mm × 10.3 mm, 2.65 mm height) with creepage/clearance ≥8.0 mm and reinforced insulation rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4, 5, 6, 7, 8 | Input-side pins (GNDI, VDDI, VIA, VIB, DISABLE) | Isolated input domain: powers logic interface and accepts TTL-level control signals; DISABLE forces both outputs low. |
| 9, 10, 11, 12, 13, 14, 15, 16 | Output-side pins (GNDA, VDDA, VOA, GNDB, VDDB, VOB) | Isolated output domain: dual independent gate drive channels with separate ground and supply references for HS/LS configuration. |
Key Features
| Feature | Design Value |
|---|---|
| RF-based silicon isolation | Eliminates LED aging and temperature drift of optocouplers; provides stable 60 ns propagation delay over full temperature range. |
| Independent HS/LS inputs (VIA/VIB) | Enables asymmetric PWM control, phase-shifted topologies, and custom dead-time insertion without external logic. |
| Overlap protection with programmable DT | Hardware-enforced minimum dead time prevents shoot-through even during rapid input transitions or MCU faults. |
| AEC-Q100 qualified | Validated for automotive-grade reliability (Grade 1: –40 to +125 °C), including HTOL, TC, and ESD testing per stress test plan. |
| High CMTI (>45 kV/µs) | Ensures reliable operation in high-dV/dt environments like SiC-based inverters where common-mode noise exceeds 20 kV/µs. |
Applications
| Motor Control Inverters | Solar & Industrial Inverters |
|---|---|
Use Scenario: Driving IGBTs in 3-phase traction inverters for EV onboard chargers and industrial servo drives. IC Role / Device Role / Timing Role: High-side/low-side isolated gate driver providing synchronized, shoot-through-protected switching of half-bridge legs. Use Value: 4.0 A peak current and 12 ns typical rise/fall time enable fast switching of 1200 V SiC MOSFETs with minimal Miller-induced turn-on risk. | Use Scenario: Gate driving in string-level MPPT converters and grid-tied PV inverters operating at 1000 V DC bus. IC Role / Device Role / Timing Role: Reinforced-isolation driver delivering independent control to high-side and low-side switches in full-bridge and NPC topologies. Use Value: 5 kVRMS isolation and 600 VRMS reinforced working voltage meet IEC 62109 and UL 1741 safety requirements for photovoltaic systems. |
| Isolated DC-DC Power Supplies | Plasma Display Drivers |
Use Scenario: Driving synchronous rectifiers and primary-side switches in isolated 1–3 kW telecom and server PSUs. IC Role / Device Role / Timing Role: Dual-channel isolated driver supporting active clamp forward, LLC resonant, and phase-shifted full-bridge topologies. Use Value: Programmable dead time (70–900 ns) allows fine-tuning for zero-voltage switching (ZVS) window optimization across load and line variations. | Use Scenario: Controlling sustain and scan electrode drivers in AC plasma display panels requiring high-voltage, high-speed switching. IC Role / Device Role / Timing Role: High-speed isolated gate driver delivering precise timing and high peak current to sustain-stage MOSFET arrays. Use Value: 8 MHz max switching frequency and <5.6 ns pulse width distortion support accurate 200+ kHz sustain pulse generation with sub-ns edge alignment. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-side/low-side isolated gate drive applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Si8233AD-C-ISR | Same 4.0 A output and SOIC-16 WB package, but with 12.5 V VDDA/VDDB UVLO threshold (vs. 10 V for SI8233BB-C-ISR). | Preferred for 15 V gate drive rails where higher UVLO margin prevents unintended shutdown during rail sag. | Select when system gate supply has wider tolerance or requires tighter UVLO hysteresis (1000 mV vs. 1000 mV). |
| UCC21520DW | Texas Instruments part with 4 A output, 5.7 kVRMS isolation, but only 35 ns max propagation delay and no programmable dead time. | Better for ultra-low-latency timing-critical applications; lacks hardware overlap protection and requires external DT circuitry. | Choose when minimizing propagation skew is critical and dead time can be managed digitally or externally. |
Compared with SI8233BB-C-ISR, Si8233AD-C-ISR offers higher VDDA/VDDB UVLO for improved rail stability, while UCC21520DW delivers lower latency but requires external dead-time control-making SI8233BB-C-ISR optimal for shoot-through-sensitive, cost-constrained industrial inverters needing integrated safety logic.
Availability
SI8233BB-C-ISR is available at Aetrix Electronics and suitable for motor control inverters, solar & industrial inverters, and isolated DC-DC power supplies requiring stable component supply, long-term lifecycle support, and AEC-Q100-qualified isolation performance.
Supply support for SI8233BB-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
Silicon Labs is a fabless semiconductor company specializing in precision timing, isolation, and mixed-signal ICs for industrial, automotive, and communications markets.
The Si823x family was designed specifically for high-reliability isolated gate driving in high-noise, high-voltage power conversion systems-emphasizing robust CMTI, integrated safety logic, and extended temperature operation.
FAQ
What is the maximum isolation voltage rating for SI8233BB-C-ISR?
The SI8233BB-C-ISR is rated for 5 kVRMS input-to-output isolation per UL 1577, with production-tested withstand voltage of 6.0 kVRMS for 1 second. This applies specifically to the SOIC-16 wide-body package variant and meets reinforced insulation requirements per IEC 60950-1 and IEC 60601-1.
Does SI8233BB-C-ISR support programmable dead time, and how is it configured?
Yes, SI8233BB-C-ISR supports hardware-programmable dead time from 70 ns to 900 ns using an external resistor (RDT) connected between the DT pin and VDDI. The exact value is determined by the resistor's tolerance and temperature coefficient; recommended range is 6 kΩ to 220 kΩ per the datasheet Figure 42.
What is the peak output current capability of SI8233BB-C-ISR, and how does it differ between sink and source?
SI8233BB-C-ISR delivers 4.0 A peak sink current and 2.0 A peak source current per channel. This asymmetry reflects optimized internal driver impedance (RON(SINK) = 1.0 Ω, RON(SOURCE) = 2.7 Ω) to prioritize fast turn-off-critical for preventing shoot-through in half-bridge configurations.
Is SI8233BB-C-ISR qualified for automotive applications?
Yes, SI8233BB-C-ISR is AEC-Q100 qualified (Grade 1: –40 to +125 °C ambient), with full qualification including HTOL, temperature cycling, and ESD testing. It is commonly used in automotive onboard chargers, DC-DC converters, and traction inverter auxiliary drives.
What package type does SI8233BB-C-ISR use, and what are its key mechanical dimensions?
SI8233BB-C-ISR uses the SOIC-16 wide-body package (WBSOIC-16) with 10.3 mm × 10.3 mm body size, 2.65 mm max height, and ≥8.0 mm creepage/clearance. Its pin pitch is 1.27 mm, and it is RoHS-compliant and halogen-free per JEDEC J-STD-020.
SI8233BB-C-ISR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Skyworks Solutions Inc.
- Series:
- -
- Package/Case:
- 16-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Technology:
- Capacitive Coupling
- Number of Channels:
- 2
- Voltage - Isolation:
- 2500Vrms
- Common Mode Transient Immunity (Min):
- 20kV/µs
- Propagation Delay tpLH / tpHL (Max):
- 60ns, 60ns
- Pulse Width Distortion (Max):
- 5.6ns
- Rise / Fall Time (Typ):
- 12ns, 12ns (Max)
- Current - Output High, Low:
- 2A, 4A
- Current - Peak Output:
- 4A
- Voltage - Forward (Vf) (Typ):
- -
- Current - DC Forward (If) (Max):
- -
- Voltage - Output Supply:
- 9.4V ~ 24V
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Operating Temperature:
- -40°C ~ 125°C
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
- Approval Agency:
- CQC, CSA, UR, VDE
SI8233BB-C-ISR FAQ
1.How can I place an order for SI8233BB-C-ISR through Aetrix?
Please submit a Request for Quotation (RFQ) for SI8233BB-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 SI8233BB-C-ISR reliable?
The price and inventory of SI8233BB-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 SI8233BB-C-ISR is usually 5 days.
3.What payment methods are accepted for SI8233BB-C-ISR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI8233BB-C-ISR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI8233BB-C-ISR?
SI8233BB-C-ISR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI8233BB-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 SI8233BB-C-ISR?
For technical support, including SI8233BB-C-ISR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI8233BB-C-ISR requirements.
6.How does Aetrix verify that SI8233BB-C-ISR is sourced from the original manufacturer or authorized distributors?
All SI8233BB-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 SI8233BB-C-ISR meets industry standards.
7.What is the process for return or replacement of SI8233BB-C-ISR?
All SI8233BB-C-ISR units undergo pre-shipment inspection (PSI). If there is an issue with SI8233BB-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 SI8233BB-C-ISR part is unused and in its original packaging.
Return procedure for SI8233BB-C-ISR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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