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Diodes Incorporated AP2805AMM-G1
- Part No.:
- AP2805AMM-G1
- Manufacturer:
- Diodes Incorporated
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
AP2805AMM-G1.pdf
- Description:
- IC PWR SWITCH N-CHAN 1:1 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,092
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Product details
Overview
AP2805AMM-G1 from BCD Semiconductor is a 500mA high-side power distribution switch with integrated N-channel MOSFET, charge pump, over-current protection (OCP), thermal shutdown, and deglitched open-drain FLAG output. It features 60mΩ RDS(ON) at 5V, 2.7–5.5V operating range, and active-high enable logic (Condition A). Designed for USB-compliant hot-plug power control in notebook and motherboard applications.
For engineers reviewing the AP2805AMM-G1 datasheet, AP2805AMM-G1 pinout, AP2805AMM-G1 application, or AP2805AMM-G1 equivalent, this device delivers precise current limiting (0.7–1.4A), UVLO (2.2–2.7V), soft-start (500µs turn-on), and fault-flag reporting - critical for robust USB port power management and battery-charger circuit design.
Technical Context
The AP2805AMM-G1 implements a charge-pump–driven high-side N-MOSFET switch with fold-back current limiting and thermal foldback to sustain safe operation during sustained overload or short-circuit events. Its UVLO circuit ensures reliable startup only above 2.2V, while the deglitched FLAG output provides noise-immune fault signaling to host controllers.
It integrates auto-discharge functionality (Condition A) to actively pull down VOUT after disable, eliminating reverse current and enabling fast, controlled power sequencing. The 1.0µA max shutdown current and 60µA typical supply current support low-power system states without compromising response time.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| RDS(ON) | 60 mΩ @ VIN=5V - Ensures ≤250mV drop at 0.5A, meeting USB voltage-drop compliance. |
| Current Limit | 0.7–1.4A - Fold-back behavior limits power dissipation during short-circuit faults. |
| Enable Logic | Active-high (Condition A) - Simplifies interface with 3.3V/5V GPIO without level-shifting. |
| FLAG Output | Open-drain, deglitched, active-low - Provides clean, noise-resistant OCP/OTP indication to USB controller. |
| UVLO Threshold | 2.2–2.7V with 0.2V hysteresis - Prevents erratic switching during brown-out conditions. |
| Thermal Shutdown | 150°C with 30°C hysteresis - Enables automatic recovery after cooling, avoiding latch-up. |
| Shutdown Current | ≤1.0 µA - Supports ultra-low-power suspend modes in portable systems. |
Pinout & Package
AP2805AMM-G1 is packaged in MSOP-8 (3.0 × 3.0 mm, 0.65 mm pitch), optimized for space-constrained USB port designs on notebooks and embedded motherboards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Power ground reference for internal circuits and thermal path. |
| 2, 3 | VIN | Main input supply (2.7–5.5V); dual pins reduce trace resistance and improve current handling. |
| 4 | EN | Active-high enable input; logic-high ≥1.6V enables switch; internal pull-down ensures default OFF state. |
| 5 | FLAG | Open-drain fault indicator; requires external pull-up; asserts low on OCP, OTP, or UVLO. |
| 6, 7, 8 | VOUT | Switched output; triple pins minimize voltage drop and thermal rise under 0.5A load. |
Key Features
| Feature | Design Value |
|---|---|
| Auto-discharge on disable | Integrated 100–200Ω pull-down resistor discharges VOUT rapidly, preventing backfeed and enabling safe hot-swap. |
| No reverse current flow | Reverse leakage <1.0 µA when disabled and VOUT > VIN - eliminates need for external blocking diode. |
| Soft-start turn-on | 500 µs controlled ramp limits inrush current to protect upstream source and downstream capacitors. |
| UL & CB certified | UL File E339337 and Nemko CB IEC60950-1 certified - simplifies end-equipment safety compliance. |
| MSOP-8 Green package | Pb-free, RoHS-compliant MSOP-8 with 0.65 mm pitch - supports fine-pitch PCB assembly and thermal performance. |
Applications
| USB Bus-Powered Hubs | Hot-Plug Power Supplies |
|---|---|
Use Scenario: Powering downstream USB peripherals from a bus-powered hub with strict voltage-drop and inrush constraints. IC Role / Device Role / Timing Role: High-side switch controlling VBUS delivery per port, with real-time fault flagging to hub controller. Use Value: 60mΩ RDS(ON) maintains USB 5V spec under 0.5A load; soft-start prevents hub reset during plug-in. |
Use Scenario: Enabling/disabling auxiliary rails in industrial docking stations where live insertion must not disrupt main system. IC Role / Device Role / Timing Role: Controlled power gate with thermal and over-current protection, coordinated via microcontroller GPIO. Use Value: Auto-discharge ensures rapid VOUT collapse (<1ms) after disable, eliminating backfeed risk during hot-swap. |
| Notebook USB-C Port Protection | Battery-Charger Input Switching |
Use Scenario: Isolating USB-C VBUS from system power during charger negotiation or fault events in ultrabooks. IC Role / Device Role / Timing Role: Fault-monitored high-side switch interfacing with EC/PMIC to enforce USB PD policy decisions. Use Value: Deglitched FLAG output provides reliable OCP signal to firmware without software debouncing overhead. |
Use Scenario: Selecting between AC adapter and battery input paths in dual-source charging circuits. IC Role / Device Role / Timing Role: Load-switch element with UVLO and thermal monitoring to prevent unsafe charging under low-input or overheated conditions. Use Value: 2.2–2.7V UVLO threshold ensures charger only engages when adapter meets minimum regulation spec. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-side load switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TI TPS22965DSGR | Lower RDS(ON) (28mΩ), no auto-discharge, no FLAG output, 0.5–5.5V range. | Lacks fault reporting and VOUT discharge - requires external circuitry for USB-compliant hot-swap. | Choose when minimal on-resistance is prioritized over integrated protection and flag signaling. |
| ON Semi NIS5132MN3TXG | Higher current rating (1.5A), no UVLO, no auto-discharge, SOIC-8 only, no FLAG pin. | Designed for higher-power loads but lacks USB-specific features like soft-start and UVLO. | Prefer for non-USB 12V/5V rail switching where fault visibility and sequencing control are secondary. |
Compared with TPS22965DSGR and NIS5132MN3TXG, AP2805AMM-G1 uniquely combines USB-compliant RDS(ON), integrated FLAG reporting, auto-discharge, and UVLO in a compact MSOP-8 - making it optimal for space- and safety-critical USB port power management.
Availability
AP2805AMM-G1 is available at Aetrix Electronics and suitable for USB power management, notebook motherboard designs, and battery-charger circuits requiring stable component supply, RoHS compliance, and long-term lifecycle support.
Supply support for AP2805AMM-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 IC designer and foundry-focused fabless company specializing in power management, USB interface, and high-reliability mixed-signal solutions.
The AP2805 product line targets USB-compliant hot-plug power distribution with integrated protection - designed specifically for notebook, motherboard, and peripheral applications demanding low RDS(ON), fault visibility, and safety certification.
FAQ
What is the function of the FLAG pin on AP2805AMM-G1?
The FLAG pin is an open-drain, deglitched fault indicator that pulls low during over-current, over-temperature, or under-voltage lockout events. It requires an external pull-up resistor and provides noise-immune signaling to the host controller, enabling immediate firmware response without software debouncing.
Does AP2805AMM-G1 support reverse current blocking when disabled?
Yes - AP2805AMM-G1 blocks reverse current with leakage <1.0 µA when disabled and VOUT exceeds VIN. This eliminates the need for an external blocking diode in battery-backup or dual-supply configurations, reducing BOM count and forward voltage loss.
How does the auto-discharge feature operate on AP2805AMM-G1?
When EN is deasserted, AP2805AMM-G1 activates an internal 100–200Ω pull-down resistor between VOUT and GND, discharging output capacitance rapidly. This prevents backfeed into upstream sources and ensures safe hot-plug removal - a key requirement for USB-compliant ports.
Is AP2805AMM-G1 compatible with 3.3V logic-level enable signals?
Yes - its active-high EN pin has a guaranteed VENH threshold of ≥1.6V and draws ≤1.0 µA input current, making it fully compatible with standard 3.3V GPIO outputs without level translation or additional drive circuitry.
AP2805AMM-G1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm 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):
- 500mA
- Rds On (Typ):
- 60mOhm
- Input Type:
- Non-Inverting
- Features:
- Load Discharge, 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-MSOP
AP2805AMM-G1 FAQ
1.How can I place an order for AP2805AMM-G1 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP2805AMM-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 AP2805AMM-G1 reliable?
The price and inventory of AP2805AMM-G1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP2805AMM-G1 is usually 5 days.
3.What payment methods are accepted for AP2805AMM-G1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP2805AMM-G1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP2805AMM-G1?
AP2805AMM-G1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP2805AMM-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 AP2805AMM-G1?
For technical support, including AP2805AMM-G1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP2805AMM-G1 requirements.
6.How does Aetrix verify that AP2805AMM-G1 is sourced from the original manufacturer or authorized distributors?
All AP2805AMM-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 AP2805AMM-G1 meets industry standards.
7.What is the process for return or replacement of AP2805AMM-G1?
All AP2805AMM-G1 units undergo pre-shipment inspection (PSI). If there is an issue with AP2805AMM-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 AP2805AMM-G1 part is unused and in its original packaging.
Return procedure for AP2805AMM-G1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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