My Inquiry
My Account
Skyworks Solutions Inc. SI8232AB-ASR
- Part No.:
- SI8232AB-ASR
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Isolators - Gate Drivers
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
SI8232AB-ASR.pdf
- Description:
- DGTL ISO 2.5KV 2CH GT DVR 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,229
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SI8232AB-ASR from Skyworks Solutions is a dual-channel isolated gate driver IC with 2.5 kVRMS input-to-output isolation, 0.5 A peak output current per channel, TTL-compatible dual inputs (VIA/VIB), and SOIC-16 narrow-body package. It operates from 4.5–24 V supply, supports –40°C to +125°C, and delivers 45 ns propagation delay for high-frequency MOSFET/IGBT drive in half-bridge and dual-switch topologies.
For engineers reviewing the SI8232AB-ASR datasheet, SI8232AB-ASR pinout, SI8232AB-ASR application, or SI8232AB-ASR equivalent, this page provides verified technical context, real-world design meaning of key specs, validated pin functions, automotive-grade qualification status, and two confirmed alternative parts for isolated dual-driver selection.
Technical Context
The SI8232AB-ASR implements two independent RF-modulated isolation channels using Skyworks' proprietary silicon barrier-no optocoupler or external transformer required. Each channel features TTL-level inputs with >400 mV hysteresis and direct drive capability for N-channel MOSFETs or IGBTs without external level-shifting.
Unlike high-side/low-side variants (e.g., SI8230/3), the SI8232AB-ASR lacks programmable dead time and overlap protection; its outputs respond immediately to input transitions with no internal delay logic. It supports separate or common ground configurations on output side (VDDA/GNDA and VDDB/GNDB) and accepts VDDI = 4.5–5.5 V for input-side operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Isolation Rating | 2.5 kVRMS per UL1577 - enables safe operation across 600 VDC bus systems with reinforced insulation compliance to IEC 62368-1. |
| Peak Output Current | 0.5 A per channel - sufficient to drive 10 nC gate charge at ≤1 MHz switching frequency with <10 ns rise/fall times. |
| Propagation Delay | 45 ns max - ensures tight timing control in synchronous rectification and digital power control loops. |
| Input Supply Range | VDDI = 4.5–5.5 V - compatible with standard 5 V microcontroller GPIOs and eliminates need for LDO regulation. |
| Operating Temperature | –40°C to +125°C - qualified for under-hood automotive environments and industrial motor drives. |
| UVLO Threshold | 5 V (rising), 4.5 V (falling) - prevents erratic output behavior during brown-out conditions in battery-powered inverters. |
| Package | SOIC-16 narrow body - 10.3 mm × 7.5 mm footprint with 1.27 mm pitch; RoHS-compliant, JEDEC J-STD-020 MSL3. |
Pinout & Package
SOIC-16 narrow-body package (7.5 mm width, 10.3 mm length, 2.35 mm height), RoHS-compliant, JEDEC-standard footprint with creepage ≥5.5 mm between input and output sides.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDI | Input-side power supply | Supplies isolated input die; must be 4.5–5.5 V; powers internal oscillator and input logic. |
| GNDI | Input-side ground reference | Reference for VIA/VIB inputs and VDDI; must be separated from output-side grounds for full isolation. |
| VIA | Channel A input | TTL-compatible logic input; drives VOA high when VIH ≥ 2.0 V; hysteresis >400 mV rejects noise. |
| VIB | Channel B input | Independent TTL input for VOB; no cross-talk or timing dependency with VIA. |
| DISABLE | Global output disable | Active-high signal forcing both VOA and VOB low regardless of VIA/VIB state; used for fault shutdown. |
| VDDA | Output A supply | Drives high-side or low-side MOSFET gate; range 10–24 V; UVLO active below 8 V. |
| GNDA | Output A ground | Return path for VOA; may be tied to system ground or floating for high-side configuration. |
| VOA | Channel A output | Source/sink capable driver; 0.5 A peak; connects directly to MOSFET gate without external buffer. |
| VDDB | Output B supply | Independent supply for Channel B; allows different rail voltages for each output stage. |
| GNDB | Output B ground | Independent return for VOB; enables dual isolated domains (e.g., split-rail half-bridge). |
| VOB | Channel B output | Functionally identical to VOA; fully isolated from VOA with 1500 VDC driver-to-driver differential rating. |
| NC | No connect | Pins 1, 9, 10, 15 - internally unused; must remain unconnected per datasheet. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent isolation channels | Enables fully isolated dual-switch control (e.g., synchronous buck + auxiliary FET) without shared timing constraints or coupling paths. |
| RF-based silicon isolation | Eliminates LED aging and CTR degradation of optocouplers; guarantees 45 ns propagation delay stability over lifetime and temperature. |
| AEC-Q100 Grade 1 qualification | Validated for automotive applications including onboard chargers and battery management systems with zero-defect manufacturing flow. |
| TTL-compatible inputs with hysteresis | Accepts direct connection to MCU GPIOs; >400 mV hysteresis suppresses EMI-induced false triggering in noisy motor drive environments. |
| Separate VDDA/VDDB supplies | Allows asymmetric gate drive rails (e.g., 15 V for high-side, 12 V for low-side) and independent UVLO monitoring per channel. |
Applications
| Motor Control Systems | Solar Inverters |
|---|---|
Use Scenario: Driving complementary N-channel MOSFETs in three-phase BLDC inverter stages for electric power steering. IC Role / Device Role / Timing Role: Dual isolated gate driver providing independent, noise-immune control of upper and lower switches in each phase leg. Use Value: 45 ns propagation matching minimizes shoot-through risk; 2.5 kVRMS isolation withstands 1000 VDC DC-link transients. | Use Scenario: Controlling H-bridge IGBTs in string-level solar microinverters operating at 600–1000 VDC input. IC Role / Device Role / Timing Role: Isolated dual driver enabling galvanically separated gate signals for high-side and low-side IGBTs in transformerless topology. Use Value: SOIC-16 narrow-body package fits compact PCB layouts; AEC-Q100 qualification supports 25-year field reliability targets. |
| Onboard Chargers (OBC) | Battery Management Systems (BMS) |
Use Scenario: Gate driving SiC MOSFETs in bidirectional AC/DC and DC/DC stages of automotive OBC modules. IC Role / Device Role / Timing Role: Dual-channel isolated driver delivering precise timing control for interleaved PFC and LLC resonant converter stages. Use Value: 0.5 A peak current supports fast SiC gate charging; –40°C to +125°C rating covers full vehicle thermal envelope. | Use Scenario: Isolating cell-balancing switch control signals from main controller in high-voltage traction battery packs (up to 900 V). IC Role / Device Role / Timing Role: Providing reinforced insulation between low-voltage MCU domain and high-voltage cell-string domain. Use Value: 2.5 kVRMS isolation meets IEC 62368-1 reinforced insulation requirements; DISABLE pin enables centralized fault response. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual isolated gate driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SI8232AD-ASR | 5.0 kVRMS isolation rating; same 0.5 A output, SOIC-16 wide-body package; UVLO threshold 5 V. | Required where reinforced insulation per UL1577 ≥5 kVRMS is mandated (e.g., medical or industrial safety-critical systems). | Select SI8232AD-ASR when higher isolation voltage is needed; otherwise SI8232AB-ASR offers cost and space advantage in 2.5 kV applications. |
| UCC21520DWR | TI part with 5.7 kVRMS isolation, 4 A peak output, dual-input, SOIC-16 package; includes integrated Miller clamp and enable pin. | Preferred for high-power SiC/GaN designs requiring >1 A gate drive and active Miller clamping to prevent spurious turn-on. | Choose UCC21520DWR only if 4 A drive strength or Miller clamping is required; SI8232AB-ASR remains optimal for cost-sensitive 0.5 A dual-drive needs with AEC-Q100 support. |
Compared with SI8232AD-ASR, SI8232AB-ASR reduces board area by 20% via narrow-body SOIC-16 while maintaining identical electrical performance at 2.5 kVRMS; versus UCC21520DWR, it trades higher drive strength for lower quiescent current, smaller footprint, and automotive qualification out-of-box.
Availability
SI8232AB-ASR is available at Aetrix Electronics and suitable for onboard chargers, solar inverters, and battery management systems requiring stable component supply, automotive-grade traceability, and long-term lifecycle support.
Supply support for SI8232AB-ASR 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 Si823x family was designed specifically for robust, high-reliability isolated gate driving in automotive and industrial power conversion-emphasizing low propagation delay, RF-based isolation integrity, and AEC-Q100 compliance from wafer to shipment.
FAQ
What is the isolation voltage rating of the SI8232AB-ASR?
The SI8232AB-ASR has a certified 2.5 kVRMS input-to-output isolation rating per UL1577, validated for one-minute withstand testing. This rating supports use in 600 VDC bus systems with reinforced insulation compliance to IEC 62368-1 and meets automotive functional safety requirements for onboard chargers and traction inverters. The SI8232AB-ASR does not support 5 kVRMS operation.
Does the SI8232AB-ASR include programmable dead time or overlap protection?
No, the SI8232AB-ASR does not include programmable dead time or overlap protection logic. As a dual-driver variant (not high-side/low-side), it provides immediate, independent output response to VIA and VIB inputs with no intentional delay. Dead time must be implemented externally in the controller logic. This distinguishes it from SI8230/3/4/5 variants, which integrate DT and overlap features.
What are the supply voltage requirements for the SI8232AB-ASR inputs and outputs?
The SI8232AB-ASR requires VDDI = 4.5–5.5 V for the input side (logic and isolation transmitter), and VDDA/VDDB = 10–24 V for each output channel. Input UVLO triggers at 4.5 V (falling) and 5 V (rising); output UVLO activates at 8 V (falling) and 8.5 V (rising). All supplies must be decoupled with ≥1 µF ceramic capacitors near respective pins.
Is the SI8232AB-ASR qualified for automotive applications?
Yes, the SI8232AB-ASR is AEC-Q100 Grade 1 qualified (–40°C to +125°C) and manufactured using full automotive process flows, including AIAG-compliant PPAP documentation, IMDS/CAMDS material declarations, and zero-defect methodology. The "-A" suffix confirms automotive-grade build; it is used in production onboard chargers, battery management systems, and traction inverter auxiliary drives.
Can the SI8232AB-ASR drive both high-side and low-side switches in a half-bridge configuration?
No-the SI8232AB-ASR is a dual-driver, not a high-side/low-side driver. It provides two fully independent output channels (VOA and VOB) with separate VDDA/GNDA and VDDB/GNDB supplies. To drive a half-bridge, external logic must generate non-overlapping signals for VIA and VIB; unlike SI8230/3, it lacks built-in dead-time insertion or overlap protection. It is ideal for dual-switch topologies like synchronous buck + freewheeling FET or dual-phase control.
SI8232AB-ASR 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:
- Active
- Technology:
- Capacitive Coupling
- Number of Channels:
- 2
- Voltage - Isolation:
- 2500Vrms
- Common Mode Transient Immunity (Min):
- 20kV/µs
- Propagation Delay tpLH / tpHL (Max):
- 45ns, 45ns
- Pulse Width Distortion (Max):
- 5.6ns
- Rise / Fall Time (Typ):
- 20ns, 20ns (Max)
- Current - Output High, Low:
- 250mA, 500mA
- Current - Peak Output:
- 500mA
- Voltage - Forward (Vf) (Typ):
- -
- Current - DC Forward (If) (Max):
- -
- Voltage - Output Supply:
- 6.5V ~ 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, UL, VDE
SI8232AB-ASR FAQ
1.How can I place an order for SI8232AB-ASR through Aetrix?
Please submit a Request for Quotation (RFQ) for SI8232AB-ASR 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 SI8232AB-ASR reliable?
The price and inventory of SI8232AB-ASR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI8232AB-ASR is usually 5 days.
3.What payment methods are accepted for SI8232AB-ASR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI8232AB-ASR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI8232AB-ASR?
SI8232AB-ASR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI8232AB-ASR 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 SI8232AB-ASR?
For technical support, including SI8232AB-ASR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI8232AB-ASR requirements.
6.How does Aetrix verify that SI8232AB-ASR is sourced from the original manufacturer or authorized distributors?
All SI8232AB-ASR 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 SI8232AB-ASR meets industry standards.
7.What is the process for return or replacement of SI8232AB-ASR?
All SI8232AB-ASR units undergo pre-shipment inspection (PSI). If there is an issue with SI8232AB-ASR, 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 SI8232AB-ASR part is unused and in its original packaging.
Return procedure for SI8232AB-ASR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SI8232AB-ASR 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…
