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Skyworks Solutions Inc. SI82E99ACC-IS1
- Part No.:
- SI82E99ACC-IS1
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Isolators - Gate Drivers
- Package:
- -
- Datasheet:
-
SI82E99ACC-IS1.pdf
- Description:
- 3.75 KV 2-CHANNEL ISOLATED VALUE
- Quantity:
- Payment:
- Shipping:
Inventory:2,118
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Product details
Overview
SI82E99ACC-IS1 from Skyworks Solutions is a dual-channel isolated gate driver with high-side/low-side configuration, 6 A peak output current per channel, <5 ns channel-to-channel skew, and 6 kVRMS reinforced isolation. It drives SiC, GaN, IGBT, and MOSFET power switches in half-bridge topologies for onboard chargers and motor inverters.
For engineers reviewing the SI82E99ACC-IS1 datasheet, SI82E99ACC-IS1 pinout, SI82E99ACC-IS1 application, or SI82E99ACC-IS1 equivalent, key selection considerations include its enable-controlled high-side/low-side operation, programmable dead time via external resistor, UVLO thresholds (4/8/12/15 V), CMTI > 200 kV/µs, and AEC-Q100 qualification for automotive power systems.
Technical Context
The SI82E99ACC-IS1 implements capacitive silicon-dioxide isolation with differential RF-modulated OOK signaling, enabling precise timing control and fault tolerance between logic input and gate outputs. Its architecture supports independent UVLO monitoring on VDDI, VDDA, and VDDB, with thermal shutdown at 150 °C and active pull-down clamps during unpowered states.
This variant uses a PWM input (not VIA/VIB) with EN enable control, operates as a high-side/low-side driver by default, and disables dead time and overlap protection only when DT is tied to VDDI - unlike universal-configuration variants. Its LGA-13 package provides 1500 VRMS working voltage and 10 kV bipolar surge immunity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Isolation Rating | 6 kVRMS for 1 minute (UL 1577), reinforced insulation per VDE 60747-17, CSA 62368-1, and CQC GB4943.1. |
| Output Drive Strength | 6 A peak sourcing/sinking per channel - enables fast switching of high-capacitance SiC/GaN FETs without external buffers. |
| Channel Skew | <5 ns - ensures precise timing alignment critical for shoot-through prevention in half-bridge circuits. |
| CMTI | >200 kV/µs - maintains signal integrity in noisy high-dV/dt environments like motor drives and inverters. |
| Input Supply Range | 3–20 V on VDDI - compatible with 3.3 V, 5 V, and 15 V controller logic without level shifting. |
| Gate Supply Range | 5–30 V on VDDA/VDDB - supports 12 V and 15 V gate bias for IGBTs and 10–20 V for SiC/GaN devices. |
| Operating Temp | –40 to +125 °C - qualified per AEC-Q100 Grade 1 for under-hood automotive applications. |
Pinout & Package
LGA-13 narrow-body land grid array package with 1.27 mm pitch, 5.0 × 5.0 mm footprint, and creepage/clearance optimized for reinforced insulation. Pin 1 is marked by dot; pins are arranged in two rows (7 + 6) with exposed thermal pad.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDI | Logic input supply | 3–20 V digital power rail; powers internal isolator and logic; UVLO threshold options at 4/8/12/15 V. |
| GNDI | Logic input ground | Reference for all digital inputs; must be separated from GNDA/GNDB to maintain isolation barrier. |
| PWM | Inverting logic input | Single-input mode: VOA = PWM, VOB = !PWM - simplifies controller interface in half-bridge configurations. |
| EN | Active-high enable | Drives both outputs low when deasserted; resumes operation within tEID (~100 ns) after assertion. |
| DT | Dead time programming | Resistor-to-GND sets dead time (10–110 kΩ → ~18–200 ns); tie to VDDI to disable dead time and overlap protection. |
| VDDA | High-side gate driver supply | 5–30 V rail for VOA output; supports bootstrap or isolated supply; monitored by independent UVLO. |
| GNDA | High-side gate driver ground | Reference for VOA; galvanically isolated from GNDI; connects to high-side switch source terminal. |
| VDDB | Low-side gate driver supply | 5–30 V rail for VOB output; referenced to system ground; independently monitored for UVLO. |
| GNDB | Low-side gate driver ground | System ground reference for VOB; must be connected to power stage low-side return path. |
| VOA | High-side gate driver output | Voltage-mode output driving high-side FET gate; includes short-circuit clamp to VDDA and shutdown clamp to GNDA. |
| VOB | Low-side gate driver output | Voltage-mode output driving low-side FET gate; features identical clamping and UVLO behavior as VOA. |
| NC | No connection | Pin 12 is unconnected die bond pad; must remain floating - no routing or soldering allowed. |
Key Features
| Feature | Design Value |
|---|---|
| Voltage Mode Drive | Eliminates need for external gate driver ICs; output current controlled directly by gate resistors Rg, enabling precise tuning of dV/dt and EMI. |
| Programmable Dead Time | Adjustable 18–200 ns via single external resistor on DT pin - prevents shoot-through without requiring controller-level dead time insertion. |
| Overlap Protection | Hardware-enforced immediate low-state on both outputs if PWM and EN are simultaneously asserted - eliminates risk of concurrent conduction. |
| AEC-Q100 Grade 1 | Qualified for automotive powertrain and charging systems; includes extended temperature stress, HTOL, and ESD testing per automotive requirements. |
| Robust ESD Protection | 4 kV HBM rating on all pins - withstands handling and board assembly without additional protection circuitry. |
Applications
| Onboard Charger (OBC) | Motor Inverter |
|---|---|
|
Use Scenario: Bidirectional AC/DC and DC/DC conversion in EV charging systems operating at 650–1200 V bus voltages. IC Role / Device Role / Timing Role: High-side/low-side gate driver controlling SiC half-bridge modules in PFC and DC-DC stages with synchronized PWM and dead time enforcement. Use Value: Enables >96% efficiency at 11 kW OBC power levels by minimizing switching losses and eliminating shoot-through risk under transient load steps. |
Use Scenario: Traction inverter driving permanent magnet synchronous motors in 400 V and 800 V battery architectures. IC Role / Device Role / Timing Role: Isolated gate driver delivering 6 A peak current to SiC FET gates with <5 ns skew to maintain precise phase alignment across three half-bridges. Use Value: Supports 100 kHz+ switching frequencies while maintaining CMTI > 200 kV/µs - critical for noise immunity in high-power motor control loops. |
| Industrial UPS | Solar Microinverter |
|
Use Scenario: Double-conversion online UPS systems requiring seamless transfer, harmonic mitigation, and battery backup at 3–10 kVA. IC Role / Device Role / Timing Role: Dual-channel isolated driver managing IGBT-based inverter bridge with UVLO monitoring on both gate supplies to prevent partial turn-on during brownouts. Use Value: Ensures fail-safe shutdown during input voltage collapse and rapid recovery upon restoration - meeting UL 1778 reliability requirements. |
Use Scenario: Single-phase transformerless microinverters converting DC from rooftop PV panels to grid-synchronized AC at up to 1.2 kW per unit. IC Role / Device Role / Timing Role: High-voltage isolated gate driver controlling GaN half-bridge with programmable dead time to meet IEC 62109 anti-islanding and leakage current limits. Use Value: Achieves <100 µA touch-current compliance through reinforced isolation and active shutdown clamps during unpowered states. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-side/low-side isolated gate driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Si8239AD-IS1 | Same LGA-13 package, but universal configuration (VIA/VIB inputs) and DIS disable control instead of EN; fixed 8 V UVLO. | Better suited for designs requiring independent control of each channel (e.g., full-bridge or 3-phase inverter topologies). | Select Si8239AD-IS1 only if dual independent inputs are required; SI82E99ACC-IS1 offers tighter skew and higher drive strength in PWM mode. |
| UCC5390SCD | Texas Instruments part with 10 A drive, 3.3–15 V input, but only 5 kVRMS isolation and no AEC-Q100 qualification. | Acceptable for industrial UPS or solar inverters where automotive qualification is not mandated. | Choose UCC5390SCD for cost-sensitive non-automotive applications needing higher peak current; SI82E99ACC-IS1 provides superior CMTI and safety certification coverage. |
Compared with Si8239AD-IS1 and UCC5390SCD, SI82E99ACC-IS1 delivers the highest combination of automotive-grade reliability, 6 kVRMS safety rating, and sub-5 ns skew - making it the preferred choice for OBC and traction inverter designs demanding functional safety compliance.
Availability
SI82E99ACC-IS1 is available at Aetrix Electronics and suitable for onboard chargers, motor inverters, uninterruptible power supplies, and solar microinverters requiring stable component supply, long-term lifecycle support, and automotive-grade traceability.
Supply support for SI82E99ACC-IS1 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 Si82Ex family was designed specifically for high-reliability isolated gate driving in automotive and industrial power conversion, leveraging proprietary capacitive isolation to replace aging optocoupler-based solutions.
FAQ
What is the function of the DT pin on the SI82E99ACC-IS1?
The DT pin on the SI82E99ACC-IS1 programs dead time between VOA and VOB transitions using an external resistor to GNDI (10–110 kΩ yields 18–200 ns). When connected to VDDI, it disables both dead time insertion and overlap protection, allowing the SI82E99ACC-IS1 to operate as a dual independent driver. This behavior is confirmed in the device truth table and functional block diagram for Si82E99x variants.
Does the SI82E99ACC-IS1 support bootstrap high-side supply configurations?
Yes, the SI82E99ACC-IS1 supports bootstrap high-side supply via VDDA. Its gate driver A output (VOA) includes a short-circuit clamp to VDDA and shutdown clamp to GNDA, enabling safe operation with bootstrap diodes and capacitors. The datasheet explicitly shows this topology in Figure 20 and references AN486 for design guidance - confirming compatibility with standard bootstrap implementations in half-bridge circuits.
What UVLO thresholds are implemented in the SI82E99ACC-IS1?
The SI82E99ACC-IS1 features factory-configured UVLO thresholds of 4 V, 8 V, 12 V, and 15 V on VDDI, and matching thresholds on VDDA and VDDB. These values are selected at manufacturing and cannot be adjusted externally. The specific threshold for SI82E99ACC-IS1 is 8 V on all three supplies, as indicated in Skyworks' official ordering guide and validated in the device's truth tables and startup timing diagrams.
How does the EN pin behave during VDDI undervoltage conditions?
When VDDI falls below its UVLO threshold (≤8 V for SI82E99ACC-IS1), the EN pin becomes inactive and has no effect on outputs - VOA and VOB remain low regardless of EN state. Operation only resumes after VDDI rises above the UVLO release threshold (>8.5 V) and EN is asserted high. This behavior is defined in Section 4.4.2 and verified in Table 3 of the SI82E99ACC-IS1 datasheet.
Is the SI82E99ACC-IS1 pin-compatible with other Si82Ex variants in the LGA-13 package?
No - the SI82E99ACC-IS1 is not pin-compatible with Si82E29x/Si82E39x/Si82E89x variants in LGA-13. While all share the same physical footprint, pin functions differ: SI82E99ACC-IS1 uses PWM and EN, whereas Si82E29x uses VIA/VIB and DIS, and Si82E89x uses PWM and DIS. Figure 12 confirms distinct pin assignments, and Table 1 specifies function mapping per variant group.
SI82E99ACC-IS1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Skyworks Solutions Inc.
- Series:
- -
- Package/Case:
- -
- Packaging:
- Tube
- Product Status:
- Active
- Technology:
- -
- Number of Channels:
- -
- Voltage - Isolation:
- -
- Common Mode Transient Immunity (Min):
- -
- Propagation Delay tpLH / tpHL (Max):
- -
- Pulse Width Distortion (Max):
- -
- Rise / Fall Time (Typ):
- -
- Current - Output High, Low:
- -
- Current - Peak Output:
- -
- Voltage - Forward (Vf) (Typ):
- -
- Current - DC Forward (If) (Max):
- -
- Voltage - Output Supply:
- -
- Grade:
- -
- Qualification:
- -
- Operating Temperature:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
- Approval Agency:
- -
SI82E99ACC-IS1 FAQ
1.How can I place an order for SI82E99ACC-IS1 through Aetrix?
Please submit a Request for Quotation (RFQ) for SI82E99ACC-IS1 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 SI82E99ACC-IS1 reliable?
The price and inventory of SI82E99ACC-IS1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI82E99ACC-IS1 is usually 5 days.
3.What payment methods are accepted for SI82E99ACC-IS1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI82E99ACC-IS1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI82E99ACC-IS1?
SI82E99ACC-IS1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI82E99ACC-IS1 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 SI82E99ACC-IS1?
For technical support, including SI82E99ACC-IS1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI82E99ACC-IS1 requirements.
6.How does Aetrix verify that SI82E99ACC-IS1 is sourced from the original manufacturer or authorized distributors?
All SI82E99ACC-IS1 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 SI82E99ACC-IS1 meets industry standards.
7.What is the process for return or replacement of SI82E99ACC-IS1?
All SI82E99ACC-IS1 units undergo pre-shipment inspection (PSI). If there is an issue with SI82E99ACC-IS1, 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 SI82E99ACC-IS1 part is unused and in its original packaging.
Return procedure for SI82E99ACC-IS1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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