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Diodes Incorporated AP2820GMTR-G1
- Part No.:
- AP2820GMTR-G1
- Manufacturer:
- Diodes Incorporated
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AP2820GMTR-G1.pdf
- Description:
- IC PWR SWITCH N-CHAN 1:1 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,894
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Product details
Overview
AP2820GMTR-G1 from BCD Semiconductor Manufacturing Limited is a high-side power distribution switch with active-low enable and open-drain FLAG output, designed for USB-compliant hot-plug power control. It integrates an N-channel MOSFET with 60 mΩ RDS(ON), 2.5 A continuous load capability, under-voltage lockout (2.5 V threshold), and thermal shutdown (150 °C). Used in notebook motherboard USB hubs to manage bus power delivery while preventing inrush current and overcurrent faults.
For engineers reviewing the AP2820GMTR-G1 datasheet, AP2820GMTR-G1 pinout, AP2820GMTR-G1 application, or AP2820GMTR-G1 equivalent, this device supports precise USB voltage-drop compliance, fault-aware system-level power sequencing, and robust short-circuit fold-back protection in space-constrained SOIC-8 layouts.
Technical Context
The AP2820GMTR-G1 implements a charge-pump–driven N-channel MOSFET high-side switch with integrated soft-start (500 μs turn-on time), deglitched open-drain FLAG signaling, and auto-discharge-disabled operation per its "G" version designation. Its enable logic is active-low, and it features no reverse current path when disabled.
Protection architecture includes fold-back current limiting (1.18 A short-circuit current), over-temperature shutdown with 30 °C hysteresis, and UVLO with 0.2 V hysteresis. The device operates across 2.7–5.5 V input and draws only 80 μA typical supply current in active mode.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| RDS(ON) | 60 mΩ max at 5 V VIN and 2.5 A load - ensures ≤150 mV drop at full rated current for USB 2.0 compliance. |
| Continuous Load Current | 2.5 A - guaranteed rating for E/F/G/H versions, enabling higher-power USB peripherals and self-powered hubs. |
| Enable Logic | Active-low - simplifies direct interface with USB controller GPIOs without level-shifting. |
| FLAG Output | Open-drain, deglitched, active-low - provides reliable fault indication (OCP/OTP) with external pull-up; 35–70 mV low-state voltage at 5 mA sink. |
| UVLO Threshold | 2.5 V ±0.2 V - prevents erratic switching during brown-out conditions and ensures clean power-up sequencing. |
| Thermal Shutdown | 150 °C with 30 °C hysteresis - protects MOSFET and PCB during sustained overload or poor heatsinking. |
| Supply Current | 80 μA typical at 5 V - minimizes standby power draw in always-on USB host systems. |
Pinout & Package
AP2820GMTR-G1 is supplied in SOIC-8 package (4.90 mm × 3.91 mm × 1.75 mm), RoHS-compliant and green (G1 suffix), suitable for reflow soldering per JEDEC J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Power ground reference for internal circuits and MOSFET source return path. |
| 2, 3 | VIN | Input supply pin - accepts 2.7–5.5 V; dual pins reduce trace resistance and improve current handling. |
| 4 | EN | Active-low enable input - drives internal charge pump; <1.0 V threshold ensures reliable disable under noise. |
| 5 | FLAG | Open-drain fault indicator - asserts low on overcurrent or overtemperature; requires external pull-up. |
| 6, 7, 8 | VOUT | Switched output - connects to load; triple pins minimize voltage drop and thermal rise under 2.5 A load. |
Key Features
| Feature | Design Value |
|---|---|
| No reverse current flow when disabled | Prevents backfeeding from VOUT to VIN during power-off or hot-swap removal, eliminating need for external blocking diodes. |
| Fold-back short-circuit current limit | 1.18 A at VOUT = 0 V - reduces power dissipation during sustained shorts, enabling smaller PCB copper areas and thermal relief. |
| Soft-start turn-on time | 500 μs - limits inrush current to <1 A in typical 1 μF–22 μF output capacitor configurations, avoiding USB port reset. |
| UL and CB safety certification | UL File No. E339337 and Nemko CB Scheme IEC60950-1 (Certif No. NO62093) - enables direct use in certified end equipment without additional isolation review. |
| Output shutdown pull-low resistor | Integrated 100–200 Ω discharge path for A/C/E/G versions - ensures rapid VOUT decay after disable, critical for USB enumeration timing. |
Applications
| USB Bus-Powered Hubs | Notebook Motherboard USB Power Rails |
|---|---|
|
Use Scenario: Distributing 5 V power from upstream USB host to four downstream ports with individual overcurrent protection. IC Role / Device Role / Timing Role: High-side switch per port, controlled by hub controller GPIO; FLAG signals fault to hub IC within 10 ms. Use Value: Enables per-port power cycling without resetting entire hub; 60 mΩ RDS(ON) maintains >4.85 V at 2.5 A for USB BC1.2 charging compatibility. |
Use Scenario: Isolating USB 3.0 Type-A ports from main 5 V rail during sleep states or firmware-initiated power gating. IC Role / Device Role / Timing Role: Hot-plug–capable power gate; EN driven by EC (Embedded Controller); FLAG feeds interrupt line to PCH. Use Value: Eliminates need for discrete MOSFET + driver + protection IC; 80 μA quiescent current extends battery life in S0ix low-power states. |
| Battery Charger Input Switching | Hot-Plug Power Supplies for Docking Stations |
|
Use Scenario: Enabling/disabling 5 V input to linear or buck charger IC during adapter insertion/removal detection. IC Role / Device Role / Timing Role: Input-side protection switch; UVLO prevents charger activation below valid adapter voltage. Use Value: Prevents charger latch-up during marginal adapter conditions; thermal shutdown avoids damage during accidental short at charger input. |
Use Scenario: Managing auxiliary 5 V rail in laptop docking stations that accept multiple power sources (USB-C PD, barrel jack, internal battery). IC Role / Device Role / Timing Role: Priority-based power path selector; FLAG reports overcurrent to dock MCU for source arbitration. Use Value: Supports seamless source handover without output glitch; 2.5 A rating handles peak loads of dual USB 3.0 SSDs and HDMI sink simultaneously. |
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 | 2.0 A rated, SOIC-5, no FLAG output, no fold-back limiting, 70 mΩ RDS(ON) | Lacks fault reporting and short-circuit energy management; suited for non-critical, low-cost USB ports without host-side fault recovery. | Select when FLAG signaling and fold-back protection are unnecessary and board space is constrained. |
| ON Semi NIS5132MN | 2.5 A rated, MSOP-8, FLAG output, but no UVLO or soft-start; 75 mΩ RDS(ON) | Requires external UVLO circuitry and RC soft-start network; less robust for unregulated or noisy input rails. | Choose only if existing design already implements external UVLO and inrush control, and MSOP-8 footprint is mandatory. |
Compared with TPS2051BDBVR and NIS5132MN, AP2820GMTR-G1 delivers integrated fault visibility, USB-compliant voltage drop, and autonomous protection-reducing BOM count and improving system-level reliability without external components.
Availability
AP2820GMTR-G1 is available at Aetrix Electronics and suitable for USB bus-powered hubs, notebook motherboard power rails, battery-charger input switching, and hot-plug power supplies requiring stable component supply, long-term lifecycle support, and green RoHS-compliant packaging.
Supply support for AP2820GMTR-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 analog and power IC designer and foundry partner, specializing in high-efficiency power management solutions for consumer, computing, and industrial markets.
The AP2820 product line targets USB-compliant power distribution with integrated protection, addressing design needs for compact, reliable, and certification-ready hot-plug switches in portable and embedded systems.
FAQ
What is the function of the FLAG pin on AP2820GMTR-G1?
The FLAG pin is an open-drain, deglitched fault indicator that asserts low during overcurrent or overtemperature events. It requires an external pull-up resistor and responds within 5–15 ms of fault onset. Its 35–70 mV low-state voltage at 5 mA sink ensures reliable detection by standard GPIO inputs without additional level-shifting.
Does AP2820GMTR-G1 support automatic discharge of the output capacitor after shutdown?
No. AP2820GMTR-G1 is the "G" version, which denotes active-low enable *without* auto-discharge. Unlike versions A/C/E/G with integrated 100–200 Ω pull-down resistors, this variant relies on external discharge paths. This allows designers to retain VOUT hold-up time for controlled power-down sequencing in USB enumeration-sensitive applications.
Can AP2820GMTR-G1 be used with 3.3 V logic control signals?
Yes. Its EN pin accepts logic-low thresholds up to 1.0 V and logic-high thresholds from 1.6 V, making it compatible with 3.3 V CMOS outputs. With 1.0 μA max input current and rail-to-rail input voltage tolerance (0–5.5 V), it interfaces directly with microcontrollers, ECs, and USB hub controllers without level shifters.
What is the maximum ambient temperature for continuous 2.5 A operation?
AP2820GMTR-G1 supports continuous 2.5 A operation up to +85 °C ambient, verified per its Recommended Operating Conditions. At this temperature, RDS(ON) remains ≤80 mΩ and current limit stays ≥2.8 A. Derating is not required below 85 °C, but thermal design must maintain junction temperature ≤150 °C using SOIC-8's θJA = 135 °C/W.
AP2820GMTR-G1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- 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):
- 2.5A
- 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
AP2820GMTR-G1 FAQ
1.How can I place an order for AP2820GMTR-G1 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP2820GMTR-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 AP2820GMTR-G1 reliable?
The price and inventory of AP2820GMTR-G1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP2820GMTR-G1 is usually 5 days.
3.What payment methods are accepted for AP2820GMTR-G1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP2820GMTR-G1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP2820GMTR-G1?
AP2820GMTR-G1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP2820GMTR-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 AP2820GMTR-G1?
For technical support, including AP2820GMTR-G1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP2820GMTR-G1 requirements.
6.How does Aetrix verify that AP2820GMTR-G1 is sourced from the original manufacturer or authorized distributors?
All AP2820GMTR-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 AP2820GMTR-G1 meets industry standards.
7.What is the process for return or replacement of AP2820GMTR-G1?
All AP2820GMTR-G1 units undergo pre-shipment inspection (PSI). If there is an issue with AP2820GMTR-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 AP2820GMTR-G1 part is unused and in its original packaging.
Return procedure for AP2820GMTR-G1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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