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Diodes Incorporated AP2820AM-G1
- Part No.:
- AP2820AM-G1
- Manufacturer:
- Diodes Incorporated
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AP2820AM-G1.pdf
- Description:
- IC PWR SWITCH N-CHAN 1:1 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,499
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Product details
Overview
AP2820AM-G1 from BCD Semiconductor Manufacturing Limited is a high-side power distribution switch with integrated N-channel MOSFET, charge pump, and protection circuitry. It delivers 60 mΩ RDS(ON), 2.0 A continuous load capability, active-high enable, and open-drain FLAG output for fault reporting-designed specifically for USB power management in notebook and motherboard applications.
For engineers reviewing the AP2820AM-G1 datasheet, AP2820AM-G1 pinout, AP2820AM-G1 application, or AP2820AM-G1 equivalent, this device supports hot-plug USB hub power control, provides deglitched fault flagging, features UVLO and thermal shutdown, and maintains compliance with USB voltage-drop requirements under 5.5 V supply.
Technical Context
The AP2820AM-G1 implements a charge-pump–driven high-side N-MOSFET switch with soft-start to limit inrush current during turn-on. Its over-current protection uses fold-back limiting and triggers a deglitched open-drain FLAG signal within 5–15 ms of fault onset.
It integrates under-voltage lockout (2.2–2.7 V threshold), thermal shutdown at 150 °C with 30 °C hysteresis, and reverse-current blocking when disabled. The SOIC-8 package supports 135 °C/W junction-to-ambient thermal resistance and operates across –40 °C to +85 °C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| RDS(ON) | 60 mΩ typical at VIN = 5 V, IOUT = 2.0 A - ensures ≤120 mV drop at full load, meeting USB 5 V bus voltage tolerance. |
| Continuous Load Current | 2.0 A - guaranteed rating for A/B/C/D versions, enabling stable USB port power delivery without derating at 85 °C. |
| Enable Logic | Active-high - EN pin asserts switch-on when driven ≥1.6 V, compatible with standard 3.3 V/5 V GPIOs. |
| FLAG Output | Open-drain, active-low - sinks up to 5 mA with <70 mV low-level voltage, directly interfaces with USB controller interrupt inputs. |
| Supply Current | 75 μA typical (no load, VIN = 5 V) - minimizes standby power draw in always-on USB subsystems. |
| UVLO Threshold | 2.2–2.7 V with 0.2 V hysteresis - prevents erratic switching during brown-out conditions on portable system rails. |
| Thermal Shutdown | 150 °C junction temperature with 30 °C hysteresis - protects MOSFET during sustained overload or poor PCB heatsinking. |
Pinout & Package
AP2820AM-G1 is housed in an industry-standard SOIC-8 package (4.90 mm × 3.91 mm × 1.75 mm), RoHS-compliant and green (G1 suffix), with exposed pad not present. Thermal resistance θJA = 135 °C/W enables operation up to 85 °C ambient without forced airflow.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Power ground reference for internal charge pump and protection comparators; must be low-impedance connection to system GND plane. |
| 2, 3 | VIN | Main input supply pin - accepts 2.7–5.5 V; requires local 2.2 μF ceramic decoupling per datasheet recommendation. |
| 4 | EN | Active-high enable input - logic high ≥1.6 V turns on switch; leakage ±1.0 μA allows direct MCU GPIO drive without external buffering. |
| 5 | FLAG | Open-drain fault indicator - pulls low during OCP, OTP, or UVLO; requires external pull-up to host controller rail (e.g., 3.3 V or 5 V). |
| 6, 7, 8 | VOUT | Switched output - connects to USB VBUS or downstream load; pins are internally paralleled for low-inductance, high-current path (2.0 A continuous). |
Key Features
| Feature | Design Value |
|---|---|
| Soft-start timing | 500 μs output rise time - limits inrush current to prevent upstream rail collapse during hot-plug events. |
| Load short protection | Fold-back current limiting to 1.18 A at VOUT = 0 V - reduces power dissipation during sustained short-circuit faults. |
| No reverse current | ≤1.0 μA reverse leakage when disabled and VOUT > VIN - eliminates backfeed into powered-off upstream rails. |
| Output shutdown pull-low | Integrated 100–200 Ω discharge resistor (A/C/E/G versions) - actively discharges VOUT capacitance after disable for fast VBUS ramp-down. |
| Safety certification | UL E339337 and Nemko CB Scheme IEC 60950-1 certified - meets regulatory requirements for end-equipment safety approval. |
Applications
| USB Bus-Powered Hubs | Hot-Plug Notebook USB Ports |
|---|---|
|
Use Scenario: Power switching for individual downstream ports on a self-powered USB 2.0 hub, where each port must be independently enabled/disabled and monitored for overcurrent. IC Role / Device Role / Timing Role: High-side load switch controlling VBUS delivery per port; FLAG signals fault to hub controller for port disable and recovery. Use Value: Enables per-port current limiting and hot-plug-safe power sequencing without external sense resistors or discrete protection ICs. |
Use Scenario: Isolating USB VBUS from system battery or adapter rail in ultrabook designs, supporting dynamic port enable/disable based on enumeration status. IC Role / Device Role / Timing Role: Primary VBUS gate driver with soft-start and thermal monitoring; EN controlled by EC firmware, FLAG routed to EC interrupt. Use Value: Eliminates need for discrete MOSFET + gate driver + protection logic, reducing BOM count and layout area while ensuring USB spec compliance. |
| Battery-Charger Power Path | USB-C Source Port Protection |
|
Use Scenario: Managing power path between battery charger IC and USB VBUS rail in portable devices, where charger output must be isolated from VBUS during OTG or peripheral mode. IC Role / Device Role / Timing Role: Bidirectional isolation switch - blocks reverse current from VBUS to charger, enables clean power switchover via EN control. Use Value: Prevents battery discharge through USB port during charger disable; supports seamless transition between charging and peripheral modes. |
Use Scenario: Protecting USB-C source port against overcurrent and short-circuit faults in embedded host applications (e.g., docking stations, industrial controllers). IC Role / Device Role / Timing Role: High-side protection switch with fast FLAG response (5–15 ms) and thermal margin - acts as first-line defense before host PD controller intervention. Use Value: Provides hardware-level fault containment independent of PD protocol stack, improving system robustness against cable/connector failures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-side power switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TI TPS2051BDBVR | SOIC-5, 2.0 A, 70 mΩ RDS(ON), no FLAG output, no auto-discharge resistor | Lacks fault reporting and integrated discharge; requires external pull-down for VOUT discharge | Choose when FLAG signaling is unnecessary and board space is constrained (smaller footprint). |
| ON Semi NIS5132MN | MSOP-8, 2.5 A, 50 mΩ RDS(ON), active-high EN, FLAG with 10 ms delay, no UVLO | Higher current rating but missing UVLO; FLAG delay slightly longer than AP2820AM-G1's 5–15 ms range | Prefer for higher-load USB-C applications where UVLO is managed upstream and lower RDS(ON) is critical. |
Compared with TPS2051BDBVR and NIS5132MN, AP2820AM-G1 uniquely combines USB-compliant RDS(ON), integrated UVLO, deglitched FLAG, and on-die discharge resistor - making it optimal for compact, self-contained USB power management where fault visibility and safe hot-plug behavior are mandatory.
Availability
AP2820AM-G1 is available at Aetrix Electronics and suitable for USB bus-powered hubs, notebook motherboard power domains, and battery-charger circuits requiring stable component supply, green compliance, and long-term industrial availability.
Supply support for AP2820AM-G1 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
BCD Semiconductor Manufacturing Limited is a Shanghai-based fabless analog IC designer specializing in power management, LED drivers, and interface solutions for consumer, computing, and industrial markets.
The AP2820 product line targets USB-compliant high-side power switches with integrated protection, designed to replace discrete MOSFET+driver+protection combinations in space-constrained, cost-sensitive endpoint devices.
FAQ
What is the maximum input voltage the AP2820AM-G1 can tolerate?
The AP2820AM-G1 has an absolute maximum VIN rating of 6.0 V. Operation above 5.5 V violates recommended conditions and risks permanent damage. The device includes under-voltage lockout (UVLO) that disables the switch below ~2.2 V, but overvoltage beyond 6.0 V exceeds silicon limits and may cause breakdown of the internal charge pump or MOSFET gate oxide.
Does the AP2820AM-G1 support automatic restart after thermal shutdown?
No. The AP2820AM-G1 does not feature auto-retry or latch-off behavior. Upon thermal shutdown at 150 °C, the switch remains off until VIN drops below the UVLO release threshold (~2.0 V) and then rises again, or until the EN pin is cycled. This requires external firmware or hardware supervision to re-enable after fault clearance.
Can the FLAG pin drive an LED directly without a current-limiting resistor?
No. The FLAG pin is open-drain with a maximum sink current of 5 mA and a low-level voltage of ≤70 mV at that load. Driving an LED directly would exceed its current rating and cause undefined logic states. A series current-limiting resistor (e.g., 1 kΩ for 3.3 V pull-up) is required to ensure proper voltage levels and avoid damaging the internal transistor.
Is the AP2820AM-G1 pin-compatible with other variants in the AP2820 family?
Yes. All AP2820 variants-including AM-G1, BM-G1, CM-G1, and EM-G1-share identical SOIC-8 pinout and footprint. Differences lie only in enable polarity (active-high vs. active-low), auto-discharge presence, and current rating (2.0 A vs. 2.5 A), allowing drop-in substitution where functional requirements align.
AP2820AM-G1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Obsolete
- Switch Type:
- USB Switch
- Number of Outputs:
- 1
- Ratio - Input:Output:
- 1:1
- Output Configuration:
- High Side
- Output Type:
- N-Channel
- Interface:
- On/Off
- Voltage - Load:
- 2.7V ~ 5.5V
- Voltage - Supply (Vcc/Vdd):
- Not Required
- Current - Output (Max):
- 2A
- Rds On (Typ):
- 60mOhm
- Input Type:
- Non-Inverting
- Features:
- Status Flag
- Fault Protection:
- Current Limiting (Fixed), Over Temperature, Reverse Current, UVLO
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
AP2820AM-G1 FAQ
1.How can I place an order for AP2820AM-G1 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP2820AM-G1 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 AP2820AM-G1 reliable?
The price and inventory of AP2820AM-G1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP2820AM-G1 is usually 5 days.
3.What payment methods are accepted for AP2820AM-G1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP2820AM-G1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP2820AM-G1?
AP2820AM-G1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP2820AM-G1 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 AP2820AM-G1?
For technical support, including AP2820AM-G1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP2820AM-G1 requirements.
6.How does Aetrix verify that AP2820AM-G1 is sourced from the original manufacturer or authorized distributors?
All AP2820AM-G1 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 AP2820AM-G1 meets industry standards.
7.What is the process for return or replacement of AP2820AM-G1?
All AP2820AM-G1 units undergo pre-shipment inspection (PSI). If there is an issue with AP2820AM-G1, 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 AP2820AM-G1 part is unused and in its original packaging.
Return procedure for AP2820AM-G1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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