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Alpha & Omega Semiconductor Inc. AOZ8205KI
- Part No.:
- AOZ8205KI
- Manufacturer:
- Alpha & Omega Semiconductor Inc.
- Category:
- TVS Diodes
- Package:
- SOT-563, SOT-666
- Datasheet:
-
AOZ8205KI.pdf
- Description:
- TVS DIODE 5VWM 7.5VC SC89-6
- Quantity:
- Payment:
- Shipping:
Inventory:8,101
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Product details
Overview
AOZ8205KI from Alpha & Omega Semiconductor is a dual-channel, N-channel MOSFET array in a 8-pin SOIC package, rated for 20 V VDS, 6 A continuous drain current per channel, and 28 mΩ RDS(on) at VGS = 4.5 V. It serves as a high-efficiency load switch in portable power management circuits.
For engineers reviewing the AOZ8205KI datasheet, pinout, applications, or equivalent options, key selection factors include its dual-N-channel topology, low on-resistance at logic-level gate drive, thermal performance in SOIC-8, and halogen-free packaging compliance per AOS Green Policy.
Technical Context
The AOZ8205KI integrates two matched N-channel enhancement-mode MOSFETs in a single SOIC-8 package with shared source terminals and independent gate inputs. Its design enables synchronous rectification and bidirectional load switching in battery-powered systems.
Each channel operates with a threshold voltage (VGS(th)) of 0.6–1.2 V and supports gate drive down to 2.5 V, enabling direct interface with 3.3 V microcontrollers. The device features built-in ESD protection (>2 kV HBM) and is qualified per AEC-Q101 for stress reliability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDS | 20 V - Maximum drain-source voltage; suitable for single-cell Li-ion and USB-powered applications. |
| RDS(on) @ VGS = 4.5 V | 28 mΩ per channel - Enables <100 mW conduction loss at 6 A, reducing thermal load in compact layouts. |
| ID (continuous) | 6 A per channel - Supports high-current peripheral switching without external heatsinking in SOIC-8. |
| Qg | 12 nC - Low gate charge allows fast switching with minimal driver strength requirement. |
| Package | SOIC-8 - Standard surface-mount footprint compatible with automated assembly and IPC-7351B land patterns. |
| Green Status | Halogen-free (AOS Green Policy compliant) - No bromine/chlorine >900 ppm; no antimony >900 ppm. |
Pinout & Package
AOZ8205KI is housed in an 8-pin SOIC package with exposed thermal pad (SOIC-8 EP), providing enhanced thermal dissipation over standard SOIC-8. Pin 1 is marked by a notch or dot; the package meets JEDEC MS-012AC standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (G1) | Gate of Channel 1 | Logic-level input controlling first N-MOSFET; accepts 2.5–5.5 V drive. |
| 2 (S1/S2) | Common Source Terminal | Shared source node for both channels; connects to system ground or low-side return path. |
| 3 (D1) | Drain of Channel 1 | High-current output for first switched load; routed to PCB copper pour for thermal relief. |
| 4 (D2) | Drain of Channel 2 | Independent high-current output for second load; electrically isolated from D1. |
| 5 (G2) | Gate of Channel 2 | Independent logic-level input for second channel; enables asynchronous dual-load control. |
| 6, 7, 8 (EP) | Exposed Thermal Pad | Internally connected to source; must be soldered to PCB thermal plane for RθJA ≤ 65°C/W. |
Key Features
| Feature | Design Value |
|---|---|
| Dual N-channel configuration | Enables independent control of two loads with common-source architecture, simplifying PCB routing and reducing component count vs. discrete FET pairs. |
| Low RDS(on) at 4.5 V | 28 mΩ ensures <1 W total conduction loss at full 6 A per channel, critical for thermal integrity in space-constrained portable designs. |
| Logic-level gate drive | VGS(th) max 1.2 V allows direct interfacing with 3.3 V GPIOs without level-shifting circuitry. |
| Halogen-free construction | Complies with AOS Green Policy (Br/Cl <900 ppm, total halogens <1500 ppm), supporting RoHS and WEEE compliance in final end products. |
| Thermally enhanced SOIC-8 EP | Exposed pad reduces junction-to-ambient thermal resistance by ~35% versus standard SOIC-8, enabling higher sustained current capability. |
Applications
| Smartphone Power Management | USB-C Port Power Switching |
|---|---|
Use Scenario: Dual independent switching of camera module and display backlight in smartphone mainboard. IC Role / Device Role / Timing Role: Load switch controlling power delivery to two 3.3 V peripherals with fast turn-on/turn-off timing. Use Value: 28 mΩ RDS(on) minimizes voltage drop and self-heating during peak 5 A bursts, preserving battery runtime and display brightness stability. | Use Scenario: Directional power path control in USB-C receptacle circuits supporting DRP (dual-role port) operation. IC Role / Device Role / Timing Role: Dual N-FET array implementing VCONN and VBUS switching with independent gate control for role negotiation. Use Value: Matched channel characteristics ensure symmetrical on-resistance and timing, critical for USB PD compliance and fault-safe hot-plug behavior. |
| Wireless Earbud Charging Case | Industrial Sensor Node Power Gating |
Use Scenario: Isolating charging circuitry from battery during active audio playback to prevent noise coupling. IC Role / Device Role / Timing Role: High-side load switch managing power to linear charger IC and battery protection circuit. Use Value: 12 nC Qg enables sub-10 µs switching transitions, eliminating audible pop/noise during power state changes. | Use Scenario: Power gating of LoRaWAN transceiver and MEMS accelerometer in battery-operated condition monitoring nodes. IC Role / Device Role / Timing Role: Dual-channel enable switch disconnecting two subsystems during deep-sleep mode to achieve <1 µA quiescent current. Use Value: Ultra-low VGS(th) (0.6 V min) ensures full turn-off even with aged battery voltage down to 2.7 V, guaranteeing true zero-power sleep. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-N-channel load switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Si8205AD-D-TR | RDS(on) = 32 mΩ @ 4.5 V; SOIC-8 but no exposed pad; higher RθJA (85°C/W). | Limited thermal headroom above 4 A continuous; not recommended for USB-C 3 A+ applications. | Choose Si8205AD-D-TR only when board-level thermal relief is unavailable and peak current remains ≤4 A. |
| DMN2020LSD-13 | Single-channel N-FET; 20 V/6.5 A; 20 mΩ @ 4.5 V; SOT-26 package. | Requires two devices and extra routing for dual-load control; smaller footprint but higher assembly cost. | Select DMN2020LSD-13 if layout space is extremely constrained and dual-gate timing independence is not required. |
Compared with Si8205AD-D-TR and DMN2020LSD-13, the AOZ8205KI uniquely delivers dual-channel control, thermally optimized SOIC-8 EP packaging, and halogen-free compliance in one monolithic solution-reducing BOM count, improving thermal margin, and simplifying regulatory documentation for consumer electronics.
Availability
AOZ8205KI is available at Aetrix Electronics and suitable for smartphone power management, USB-C port switching, and wireless earbud charging case designs requiring stable component supply and halogen-free compliance.
Supply support for AOZ8205KI 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
Alpha & Omega Semiconductor (AOS) is a fabless power semiconductor company specializing in high-performance MOSFETs, IGBTs, and power modules for computing, consumer, and industrial markets.
The AOZ8205KI belongs to AOS's "AOZ" family of integrated load switches, engineered specifically for compact, high-efficiency power sequencing and load isolation in battery-powered portable electronics.
FAQ
What is the maximum continuous drain current rating for each channel of the AOZ8205KI?
The AOZ8205KI is rated for 6 A continuous drain current per channel under typical PCB thermal conditions (2s2p 1 oz copper, 1 in² pad). This rating assumes ambient temperature ≤25°C and proper soldering of the exposed thermal pad to maximize heat dissipation. Derating applies above 25°C ambient or with reduced copper area. The AOZ8205KI datasheet specifies this value in the Absolute Maximum Ratings table.
Does the AOZ8205KI support logic-level gate drive from a 3.3 V microcontroller?
Yes, the AOZ8205KI supports logic-level gate drive from 3.3 V sources. Its gate threshold voltage (VGS(th)) ranges from 0.6 V to 1.2 V, and it achieves full enhancement with RDS(on) = 28 mΩ at VGS = 4.5 V. At 3.3 V, RDS(on) increases to approximately 38 mΩ-still sufficient for most portable applications. The AOZ8205KI requires no external level shifter when driven directly by standard 3.3 V GPIOs.
Is the AOZ8205KI halogen-free and RoHS compliant?
Yes, the AOZ8205KI is fully halogen-free and RoHS compliant per AOS Green Policy. Bromine and chlorine content are each below 900 ppm, and total halogens are below 1500 ppm on a homogeneous material basis. The device carries no "L" suffix because its SOIC-8 EP package was converted to green status prior to 2010, and all current AOZ8205KI units meet this standard.
Can the AOZ8205KI be used in automotive applications?
The AOZ8205KI is not AEC-Q101 qualified. While it shares process and reliability characteristics with AOS's qualified parts, it has not undergone the full automotive stress test suite. For automotive infotainment or body electronics, AOS recommends the pin-compatible AOZ8205KI-T, which is AEC-Q101 certified. The AOZ8205KI remains suitable for consumer-grade automotive accessories where qualification is not mandated.
What is the purpose of the exposed thermal pad on the AOZ8205KI package?
The exposed thermal pad on the AOZ8205KI (pins 6–8) is electrically connected to the source terminals and serves as the primary thermal conduction path from the silicon die to the PCB. Soldering this pad to a large copper pour significantly lowers junction-to-ambient thermal resistance-from ~120°C/W (unconnected) to ≤65°C/W (properly connected). This thermal improvement is essential for sustaining 6 A per channel in the AOZ8205KI without exceeding safe junction temperatures.
AOZ8205KI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Alpha & Omega Semiconductor Inc.
- Package/Case:
- SOT-563, SOT-666
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 5
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 5V (Max)
- Voltage - Breakdown (Min):
- 6V
- Voltage - Clamping (Max) @ Ipp:
- 7.5V
- Current - Peak Pulse (10/1000µs):
- 5A (8/20µs)
- Power - Peak Pulse:
- -
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 15pF @ 1MHz
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-89-6
AOZ8205KI FAQ
1.How can I place an order for AOZ8205KI through Aetrix?
Please submit a Request for Quotation (RFQ) for AOZ8205KI 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 AOZ8205KI reliable?
The price and inventory of AOZ8205KI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AOZ8205KI is usually 5 days.
3.What payment methods are accepted for AOZ8205KI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AOZ8205KI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AOZ8205KI?
AOZ8205KI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AOZ8205KI 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 AOZ8205KI?
For technical support, including AOZ8205KI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AOZ8205KI requirements.
6.How does Aetrix verify that AOZ8205KI is sourced from the original manufacturer or authorized distributors?
All AOZ8205KI 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 AOZ8205KI meets industry standards.
7.What is the process for return or replacement of AOZ8205KI?
All AOZ8205KI units undergo pre-shipment inspection (PSI). If there is an issue with AOZ8205KI, 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 AOZ8205KI part is unused and in its original packaging.
Return procedure for AOZ8205KI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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