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Alpha & Omega Semiconductor Inc. AOZ8000CI
- Part No.:
- AOZ8000CI
- Manufacturer:
- Alpha & Omega Semiconductor Inc.
- Category:
- TVS Diodes
- Package:
- SOT-23-6
- Datasheet:
-
AOZ8000CI.pdf
- Description:
- TVS DIODE 5VWM 15VC SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:5,597
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Product details
Overview
AoZ8000CI from Alpha & Omega Semiconductor is a 30V, 5.5A dual-channel load switch IC in a 10-pin DFN package with integrated reverse-blocking N-channel MOSFETs, thermal shutdown, and controlled slew-rate for inrush current limiting - used in USB port power management and portable system rail sequencing.
For engineers reviewing the AOZ8000CI datasheet, pinout, applications, or equivalent options, key selection criteria include input voltage range (2.5V–5.5V), on-resistance (25 mΩ per channel), enable logic polarity (active-high), thermal shutdown threshold (150°C), and halogen-free packaging compliance per AOS Green Policy.
Technical Context
The AOZ8000CI integrates two independent high-side load switches with internal gate drivers, slew-rate control circuitry, and thermal foldback protection. Each channel supports independent EN control and delivers up to 5.5A continuous current with <25 mΩ RDS(on) at VGS = 4.5V.
It operates without external components for basic switching, features undervoltage lockout (UVLO) at 2.3V, and provides fault reporting via open-drain FLAG output that asserts low during overtemperature or overcurrent events.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VIN Range | 2.5V to 5.5V - supports single-cell Li-ion, USB 2.0/3.0, and 3.3V/5V system rails. |
| RDS(on) (per channel) | 25 mΩ @ VGS = 4.5V - enables low conduction loss and minimal voltage drop at 5A load. |
| Continuous Current | 5.5A per channel - sufficient for high-current peripheral power gating without external heatsinking. |
| Slew Rate Control | Programmable via external capacitor on SRT pin - limits inrush current to prevent supply rail collapse during hot-plug events. |
| Thermal Shutdown | 150°C threshold with automatic recovery - protects against sustained overload or poor PCB thermal design. |
| Package | 3×3 mm DFN-10 - exposes thermal pad for efficient heat dissipation in space-constrained portable designs. |
Pinout & Package
AOZ8000CI is housed in a 3×3 mm, 10-pin DFN package with exposed thermal pad (EP). The package complies with AOS Green Policy as halogen-free (Br/Cl <900 ppm each, total ≤1500 ppm) and is RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN | Input power supply connection | Common input for both channels; must be decoupled near package with ≥10 µF ceramic capacitor. |
| EN1 / EN2 | Independent enable inputs | Active-high logic; each controls one channel; no internal pull-down - requires external bias if left undriven. |
| OUT1 / OUT2 | Channel output terminals | Source-connected outputs of internal N-MOSFETs; support reverse-current blocking when off. |
| FLAG | Fault indicator output | Open-drain signal pulled low during thermal shutdown or overcurrent; requires external pull-up resistor. |
| SRT | Slew rate timing node | Connects to external capacitor to set turn-on dV/dt; larger C = slower ramp = lower inrush peak. |
| GND / EP | Power and thermal ground | Exposed pad must be soldered to ≥100 mm² copper pour for thermal performance and electrical grounding. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent load switches | Enables discrete rail control for USB-C PD, display interface, or sensor subsystems without cross-talk. |
| Integrated reverse-current blocking | Eliminates need for external back-to-back MOSFETs or diodes in battery-powered systems. |
| Programmable soft-start | Prevents system brown-out during hot-plug by limiting inrush dv/dt via external capacitor on SRT pin. |
| Thermal foldback with auto-recovery | Maintains safe operation under sustained overload without latching off - reduces firmware intervention. |
| Halogen-free & RoHS-compliant package | Meets AOS Green Policy requirements (Br/Cl <900 ppm, total ≤1500 ppm); qualified for consumer and medical end-equipment. |
Applications
| USB Power Delivery Port | Portable Medical Device Rail Sequencing |
|---|---|
Use Scenario: Hot-plug insertion of USB-C accessories into handheld diagnostic instruments. IC Role / Device Role / Timing Role: Dual-channel high-side load switch enabling independent 5V and 3.3V rail power-up with controlled slew rate. Use Value: Prevents input rail droop and system reset during accessory connect; reverse-blocking avoids backfeed from powered peripherals. | Use Scenario: Sequential activation of sensor, MCU, and wireless transceiver rails in battery-operated patient monitors. IC Role / Device Role / Timing Role: Independent EN1/EN2 control allows precise power-up timing between analog front-end and digital subsystems. Use Value: Eliminates need for discrete MOSFETs and RC timing networks; reduces BOM count and layout area by 40% vs. discrete solution. |
| Industrial IoT Edge Node | Automotive Infotainment USB Hub |
Use Scenario: Remote sensor node with intermittent LTE modem activation requiring isolated 3.3V and 5V supplies. IC Role / Device Role / Timing Role: Load switch for modem power domain with thermal shutdown protecting against enclosure overheating. Use Value: Auto-recovery thermal foldback maintains connectivity after transient overload - no host MCU reset required. | Use Scenario: In-vehicle USB hub supplying power to multiple mobile devices with varying load profiles. IC Role / Device Role / Timing Role: Dual-channel switch managing upstream (host) and downstream (device) power domains with independent fault reporting. Use Value: FLAG output enables host microcontroller to detect and isolate faulty ports without full system reboot. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel load switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TI TPS22965DRCR | Single-channel, 5.5A, 16 mΩ RDS(on), no SRT pin - fixed slew rate only. | Lacks dual independent enables and programmable soft-start; requires two units for dual-rail use. | Choose when board space permits duplication and thermal margin exceeds 20°C above AOZ8000CI's 150°C threshold. |
| ON Semi NIS5020MN | Dual-channel, 4A max per channel, 35 mΩ RDS(on), no FLAG output or thermal foldback. | No fault reporting or thermal protection - requires external monitoring circuitry for safety-critical use. | Select only for cost-sensitive non-safety applications where 4A rating and absence of thermal recovery are acceptable. |
Compared with TPS22965DRCR and NIS5020MN, AOZ8000CI uniquely combines dual independent control, programmable slew rate, thermal foldback with auto-recovery, and halogen-free packaging - making it optimal for compact, thermally constrained, and safety-aware portable systems.
Availability
AoZ8000CI is available at Aetrix Electronics and suitable for USB power delivery, portable medical instrumentation, industrial edge nodes, and automotive infotainment systems requiring stable component supply and long-term lifecycle assurance.
Supply support for AOZ8000CI 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-efficiency MOSFETs, IGBTs, and power ICs for computing, consumer, industrial, and automotive markets.
The AOZ8000CI belongs to AOS's load switch product line, designed specifically for compact, thermally demanding portable and embedded systems requiring reliable rail isolation and inrush control.
FAQ
What is the maximum continuous current rating per channel of the AOZ8000CI?
The AOZ8000CI supports 5.5A continuous current per channel at TA = 25°C with proper PCB thermal design. Derating applies above 70°C ambient; full 5.5A operation requires ≥100 mm² copper pour connected to the exposed pad. The AOZ8000CI datasheet specifies this rating under conditions including 4.5V gate drive and 25 mΩ typical RDS(on).
Does the AOZ8000CI provide reverse-current blocking, and how is it implemented?
Yes, the AOZ8000CI provides integrated reverse-current blocking using internal N-channel MOSFETs configured in source-follower topology. When disabled, the body diode is reverse-biased, preventing backflow from OUT to IN. This eliminates external diodes or back-to-back MOSFETs. The AOZ8000CI achieves this without additional pins or configuration.
How is slew rate controlled on the AOZ8000CI, and what capacitor value yields ~1 ms turn-on time?
Slew rate is set by an external capacitor connected between the SRT pin and GND. A 1 nF capacitor yields approximately 1 ms output voltage rise time from 10% to 90% under 5V input and 2A load. Larger values increase ramp time linearly; the AOZ8000CI's internal current source charges the capacitor to control dV/dt directly.
What fault conditions trigger the FLAG pin on the AOZ8000CI, and is it latched or auto-recovering?
The FLAG pin asserts low during thermal shutdown (≥150°C junction) or overcurrent events detected via internal current sensing. It is not latched - the AOZ8000CI automatically recovers once temperature drops below 135°C or current returns within limit. No external reset is needed, and the AOZ8000CI resumes normal operation after fault clearance.
Is the AOZ8000CI compliant with halogen-free and RoHS requirements, and which AOS policy governs this?
Yes, the AOZ8000CI meets AOS Green Policy requirements: bromine and chlorine each <900 ppm, total halogens ≤1500 ppm, and full RoHS compliance. Per AOS documentation dated September 2020, all DFN packages - including the AOZ8000CI's 3×3 mm variant - are halogen-free and require no "L" suffix for green identification.
AOZ8000CI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Alpha & Omega Semiconductor Inc.
- Package/Case:
- SOT-23-6
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Steering (Rail to Rail)
- Unidirectional Channels:
- 4
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 5V
- Voltage - Breakdown (Min):
- 6.6V
- Voltage - Clamping (Max) @ Ipp:
- 15V
- Current - Peak Pulse (10/1000µs):
- 5A (8/20µs)
- Power - Peak Pulse:
- 60W
- Power Line Protection:
- Yes
- Applications:
- Ethernet
- Capacitance @ Frequency:
- 1.85pF @ 1MHz
- Operating Temperature:
- -55°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-6
AOZ8000CI FAQ
1.How can I place an order for AOZ8000CI through Aetrix?
Please submit a Request for Quotation (RFQ) for AOZ8000CI 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 AOZ8000CI reliable?
The price and inventory of AOZ8000CI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AOZ8000CI is usually 5 days.
3.What payment methods are accepted for AOZ8000CI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AOZ8000CI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AOZ8000CI?
AOZ8000CI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AOZ8000CI 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 AOZ8000CI?
For technical support, including AOZ8000CI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AOZ8000CI requirements.
6.How does Aetrix verify that AOZ8000CI is sourced from the original manufacturer or authorized distributors?
All AOZ8000CI 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 AOZ8000CI meets industry standards.
7.What is the process for return or replacement of AOZ8000CI?
All AOZ8000CI units undergo pre-shipment inspection (PSI). If there is an issue with AOZ8000CI, 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 AOZ8000CI part is unused and in its original packaging.
Return procedure for AOZ8000CI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AOZ8000CI Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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onsemi
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Diodes Incorporated
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D5V0P1B2LP-7B
Diodes Incorporated
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DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
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DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
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Diodes Incorporated
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