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Diodes Incorporated AP2820AMTR-G1
- Part No.:
- AP2820AMTR-G1
- Manufacturer:
- Diodes Incorporated
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AP2820AMTR-G1.pdf
- Description:
- IC PWR SWITCH N-CHAN 1:1 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,048
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Product details
Overview
AP2820AMTR-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-compliant hot-plug power management in notebook and motherboard applications.
For engineers reviewing the AP2820AMTR-G1 datasheet, AP2820AMTR-G1 pinout, AP2820AMTR-G1 application, or AP2820AMTR-G1 equivalent, this device supports precise current limiting (2.2–3.2 A), soft-start control (500 µs turn-on), UVLO (2.5 V threshold), thermal shutdown (150 °C), and reverse-current blocking-critical for robust USB bus and self-powered hub designs.
Technical Context
The AP2820AMTR-G1 implements a charge-pump-driven high-side N-MOSFET switch with fold-back overcurrent protection and deglitched open-drain FLAG signaling. Its enable logic is active-high, and it includes internal pull-low resistor on VOUT during shutdown (for A/C/E/G versions).
It operates across 2.7–5.5 V input, features under-voltage lockout with 0.2 V hysteresis, and maintains <1.0 µA shutdown current. The device integrates thermal shutdown with 30 °C hysteresis and prevents reverse current flow when disabled.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| RDS(ON) | 60 mΩ typical at VIN = 5 V, IOUT = 2.0 A - ensures ≤200 mV drop at full load, meeting USB voltage regulation requirements. |
| Continuous Load Current | 2.0 A guaranteed - supports USB 2.0 bus-powered hubs and peripheral ports without derating at 85 °C ambient. |
| Current Limit Threshold | 2.2–3.2 A (typ. 2.7 A) at VOUT = 4.0 V - provides fold-back protection during sustained overload or short-circuit events. |
| Enable Logic | Active-high with VENH ≥1.6 V - compatible with 3.3 V and 5 V microcontroller GPIO without level-shifting. |
| FLAG Output | Open-drain, active-low, 5–15 ms delay to fault assertion - enables reliable host-controller interrupt handling with built-in deglitching. |
| UVLO Threshold | 2.5 V ±0.2 V - prevents erratic switching during brown-out conditions and ensures clean startup above valid supply range. |
| Thermal Shutdown | 150 °C junction temperature with 30 °C hysteresis - protects MOSFET and PCB during sustained overload or poor heatsinking. |
Pinout & Package
AP2820AMTR-G1 is packaged in SOIC-8 (M) with standard 1.27 mm pitch and RoHS-compliant green finish (G1 suffix). Pinout matches functional roles across all A/B/C/D variants.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Power ground reference for internal circuits and charge pump return path. |
| 2, 3 | VIN | Input supply connection - dual-pin layout reduces trace resistance and improves current handling. |
| 4 | EN | Active-high enable input - drives internal gate driver; internal pull-down ensures default OFF state. |
| 5 | FLAG | Open-drain fault indicator - sinks current during OCP/OTP; requires external pull-up to host controller rail. |
| 6, 7, 8 | VOUT | Switched output - triple-pin configuration lowers conduction loss and thermal resistance to PCB copper. |
Key Features
| Feature | Design Value |
|---|---|
| Soft-start control | 500 µs output rise time - limits inrush current to <1 A during hot-plug, preventing USB port reset. |
| Load short protection | Fold-back current limit to 1.18 A at VOUT = 0 V - reduces power dissipation during sustained shorts. |
| No reverse current | <1.0 µA leakage when disabled and VOUT > VIN - eliminates backfeed into upstream supplies during battery-swapping or multi-rail sequencing. |
| Output discharge on shutdown | 100–200 Ω internal pull-low resistor on VOUT (A/C versions) - actively discharges downstream capacitance to prevent floating states. |
| UL & CB certified | UL File E339337 and Nemko CB Scheme IEC60950-1 (Cert No. NO62093) - meets safety compliance for end-equipment certification. |
Applications
| USB Bus-Powered Hubs | Hot-Plug Notebook Power Rails |
|---|---|
|
Use Scenario: Distributing 5 V power from a single upstream USB port to four downstream ports with independent overcurrent protection. IC Role / Device Role / Timing Role: High-side switch enabling/disabling individual downstream VBUS paths while reporting faults via FLAG to USB controller. Use Value: Prevents upstream port shutdown during single-port overload; fold-back current limit avoids thermal stress during connector shorting. |
Use Scenario: Enabling 5 V auxiliary rails (e.g., card reader, ExpressCard slot) only when system is awake and USB host controller is active. IC Role / Device Role / Timing Role: Controlled power gate with soft-start and UVLO, synchronized to EN signal from embedded controller. Use Value: Eliminates inrush-induced voltage sag on shared 5 V rail; FLAG alerts firmware before thermal shutdown occurs. |
| Self-Powered USB Hubs | Battery-Charger Input Switching |
|
Use Scenario: Isolating USB host VBUS from self-powered hub's internal 5 V regulator during enumeration or suspend mode. IC Role / Device Role / Timing Role: Bidirectional isolation switch with reverse-current blocking and fast FLAG response to overtemperature events. Use Value: Ensures no backfeed from hub's internal LDO into host port; thermal hysteresis prevents oscillation during transient overload. |
Use Scenario: Switching external 5 V adapter input to Li-ion charger IC while disconnecting battery during charging to avoid conflict. IC Role / Device Role / Timing Role: High-side enable gate with shutdown-controlled VOUT pull-down, coordinated with charger enable logic. Use Value: Internal discharge resistor clears residual VOUT voltage within 10 ms after disable, ensuring safe charger IC reconfiguration. |
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 | 2.5 A rated, 70 mΩ RDS(ON), no integrated FLAG output - requires external comparator for fault detection. | Lacks deglitched fault flag; not UL-certified - adds design complexity for safety-critical USB endpoints. | Choose when FLAG functionality is handled externally and lower cost outweighs certification burden. |
| ON Semi NIS5132MN | 2.0 A rated, 85 mΩ RDS(ON), active-low enable only - incompatible with AP2820AMTR-G1's active-high EN interface. | Requires level-shifter or inverter for MCU GPIO compatibility; higher conduction loss increases thermal margin risk. | Choose only if board-level redesign accommodates enable polarity inversion and accepts higher voltage drop. |
Compared with TPS2051BDBVR and NIS5132MN, AP2820AMTR-G1 uniquely combines UL/CB certification, active-high enable, integrated deglitched FLAG, and 60 mΩ RDS(ON) in SOIC-8 - reducing BOM count and simplifying USB-compliant power sequencing.
Availability
AP2820AMTR-G1 is available at Aetrix Electronics and suitable for USB bus-powered hubs, notebook auxiliary power rails, and self-powered peripheral interfaces requiring stable component supply, long-term lifecycle support, and RoHS-compliant green packaging.
Supply support for AP2820AMTR-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 USB interface solutions since 2003.
The AP2820 product line targets USB-compliant hot-plug power distribution with integrated protection - designed for notebook, motherboard, and peripheral manufacturers needing certified, low-RDS(ON) high-side switches in standard packages.
FAQ
What is the maximum allowable input voltage for AP2820AMTR-G1?
The absolute maximum VIN is 6.0 V per datasheet Section 6. Operation beyond 5.5 V violates recommended conditions and risks permanent damage. The device is specified for 2.7–5.5 V operation, with UVLO ensuring reliable startup only above 2.5 V. Exceeding 6.0 V may trigger latch-up or gate oxide breakdown.
Does AP2820AMTR-G1 support automatic restart after thermal shutdown?
No. AP2820AMTR-G1 latches off during thermal shutdown and requires EN pin toggling (disable → re-enable) to resume operation. This prevents uncontrolled cycling during persistent overheating. The 30 °C hysteresis ensures restart only after junction temperature falls below 120 °C.
Can the FLAG pin drive an LED directly without external components?
No. FLAG is open-drain with 35–70 mV low-level voltage at 5 mA sink current. Driving an LED requires a series current-limiting resistor and external pull-up to a logic rail. Direct LED connection would exceed sink capability and violate VOL spec, risking false fault interpretation.
Is the 60 mΩ RDS(ON) value guaranteed over temperature?
Yes - the datasheet specifies 60 mΩ typical and 80 mΩ maximum at TA = 25 °C, and Figure 11 confirms RDS(ON) remains ≤100 mΩ up to 85 °C ambient for 2.0 A versions. This ensures USB voltage-drop compliance (<200 mV) across full industrial temperature range.
AP2820AMTR-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):
- 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
AP2820AMTR-G1 FAQ
1.How can I place an order for AP2820AMTR-G1 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP2820AMTR-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 AP2820AMTR-G1 reliable?
The price and inventory of AP2820AMTR-G1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP2820AMTR-G1 is usually 5 days.
3.What payment methods are accepted for AP2820AMTR-G1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP2820AMTR-G1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP2820AMTR-G1?
AP2820AMTR-G1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP2820AMTR-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 AP2820AMTR-G1?
For technical support, including AP2820AMTR-G1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP2820AMTR-G1 requirements.
6.How does Aetrix verify that AP2820AMTR-G1 is sourced from the original manufacturer or authorized distributors?
All AP2820AMTR-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 AP2820AMTR-G1 meets industry standards.
7.What is the process for return or replacement of AP2820AMTR-G1?
All AP2820AMTR-G1 units undergo pre-shipment inspection (PSI). If there is an issue with AP2820AMTR-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 AP2820AMTR-G1 part is unused and in its original packaging.
Return procedure for AP2820AMTR-G1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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