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Diodes Incorporated AP2805CMTR-G1
- Part No.:
- AP2805CMTR-G1
- Manufacturer:
- Diodes Incorporated
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AP2805CMTR-G1.pdf
- Description:
- IC PWR SWITCH N-CHAN 1:1 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,831
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Product details
Overview
AP2805CMTR-G1 from BCD Semiconductor is a 500mA high-side power distribution switch with active-low enable and open-drain fault flag, designed for USB-compliant hot-plug power control. It integrates an N-channel MOSFET (RDS(ON) = 60 mΩ @ 5V), charge pump, over-current protection with fold-back, thermal shutdown, and under-voltage lockout (UVLO = 2.2–2.7 V). Used in USB bus/self-powered hubs and notebook motherboard power rails.
For engineers reviewing the AP2805CMTR-G1 datasheet, AP2805CMTR-G1 pinout, AP2805CMTR-G1 application, or AP2805CMTR-G1 equivalent, key selection criteria include guaranteed 0.5A continuous load, logic-level enable compatibility (VENL ≤ 1.0 V), deglitched flag response (5–15 ms delay), and MSOP-8 package suitability for space-constrained USB port designs.
Technical Context
The AP2805CMTR-G1 implements a charge-pump-driven high-side N-MOSFET switch with integrated current-limit sensing and fold-back during output short-circuit events. Its UVLO circuit ensures turn-on only above 2.2 V, while thermal shutdown activates at 150 °C with 30 °C hysteresis to prevent latch-up during hot-plug transients.
It features active-low enable (EN pin threshold: 0–1.0 V) and an open-drain FLAG pin that pulls low during over-current or over-temperature faults. The device supports no reverse current when disabled and includes internal pull-low resistor on VOUT for auto-discharge in C-variant versions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| RDS(ON) | 60 mΩ @ VIN = 5.0 V - meets USB voltage-drop requirements (< 0.25 V at 0.5 A) |
| Continuous Load Current | 0.5 A - guaranteed output capability without derating at TA = 85 °C |
| Current Limit Range | 0.7–1.4 A - fold-back protection reduces short-circuit power dissipation |
| Supply Current | 60 µA typ. - enables low-power USB suspend-mode operation |
| Shutdown Current | 1.0 µA max - minimizes battery drain in portable systems |
| UVLO Threshold | 2.2–2.7 V - prevents erratic switching during brown-out conditions |
| FLAG Delay Time | 5–15 ms - provides noise-immune fault detection without false triggering |
Pinout & Package
AP2805CMTR-G1 is supplied in MSOP-8 package (3.0 × 3.0 × 0.95 mm), optimized for compact USB port and motherboard power rail layouts. Thermal resistance θJA = 150 °C/W enables reliable 0.5 A operation without external heatsinking in standard PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 GND | Ground reference | Common return path for internal protection circuits and charge pump |
| 2,3 VIN | Input supply | Dual-pin configuration lowers IR drop and improves current handling |
| 4 EN | Enable control input | Active-low logic interface compatible with 1.8/3.3/5 V microcontrollers |
| 5 FLAG | Fault indicator output | Open-drain output requires external pull-up; asserts low on OCP/OTP |
| 6,7,8 VOUT | Switched output | Triple-pin layout reduces conduction loss and enhances thermal dissipation |
Key Features
| Feature | Design Value |
|---|---|
| Soft-start circuitry | Limits inrush current to < 1 A during hot-plug insertion, preventing USB bus collapse |
| Auto-discharge function | Internal 100–200 Ω pull-low on VOUT ensures rapid discharge of downstream capacitance after disable |
| No reverse current flow | Blocks backfeed from VOUT to VIN when disabled - critical for multi-rail USB hub isolation |
| UL & CB certified | Complies with IEC60950-1 (Nemko CB No. NO67288; UL File E339337) for safety-critical power delivery |
| RoHS/Green compliant | "G1" suffix confirms Pb-free, halogen-free construction per JEDEC J-STD-609A |
Applications
| USB Bus-Powered Hubs | Hot-Plug Power Supplies |
|---|---|
|
Use Scenario: Power management for downstream USB peripherals connected to a bus-powered hub. IC Role / Device Role / Timing Role: High-side switch controlling 5 V rail delivery with fault reporting to host controller via FLAG pin. Use Value: Prevents over-current faults from disrupting upstream host port; soft-start avoids violating USB inrush limits. |
Use Scenario: Controlled 5 V power sequencing in industrial docking stations with hot-swap capability. IC Role / Device Role / Timing Role: Enables/disables power to peripheral modules with precise timing via EN pin and fault feedback via FLAG. Use Value: Fold-back current limiting and thermal shutdown protect against connector arcing and sustained shorts during insertion. |
| Notebook Motherboard USB Ports | Battery-Charger Circuits |
|
Use Scenario: Individual port power control on laptop motherboards supporting USB 2.0/3.0 compliance. IC Role / Device Role / Timing Role: High-side switch isolating each USB port's VBUS with UVLO and OCP monitoring. Use Value: 60 mΩ RDS(ON) ensures < 300 mV drop at 0.5 A, preserving USB voltage tolerance margins. |
Use Scenario: Isolating charging circuitry from system power rails during battery replacement or fault conditions. IC Role / Device Role / Timing Role: Load switch enabling/disabling charger IC input while reporting faults to system MCU. Use Value: Auto-discharge ensures safe removal of battery packs by draining residual VBUS capacitance within 10 ms. |
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) (28 mΩ), but no auto-discharge or FLAG output; only enable/status pin | Lacks fault reporting - requires external monitoring circuitry for OCP/OTP | Choose when minimal on-resistance is prioritized over integrated protection signaling |
| ON Semi NIS5020MNTBG | Higher current rating (2 A), but larger SOIC-8 package and no UVLO or soft-start | Requires external UVLO and RC timing network for inrush control | Prefer for higher-load applications where board space allows and discrete protection is acceptable |
Compared with TPS22965DSGR and NIS5020MNTBG, AP2805CMTR-G1 uniquely combines USB-compliant RDS(ON), integrated FLAG reporting, auto-discharge, and UVLO in a compact MSOP-8 - reducing BOM count and PCB area for portable USB power domains.
Availability
AP2805CMTR-G1 is available at Aetrix Electronics and suitable for USB power management, notebook motherboard designs, and hot-plug power supplies requiring stable component supply and RoHS/Green compliance.
Supply support for AP2805CMTR-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 foundry and fabless designer specializing in high-voltage, high-efficiency power management solutions for consumer and computing markets.
The AP2805 product line targets USB-compliant, space-constrained power distribution with integrated protection - addressing design needs in notebooks, docking stations, and self-powered hubs where reliability and footprint matter.
FAQ
What is the logic polarity of the EN pin on AP2805CMTR-G1?
The "C" in AP2805CMTR-G1 denotes active-low enable functionality. The EN pin asserts the switch ON when pulled below 1.0 V (VENL max), and OFF when above 1.6 V (VENH min). This matches standard GPIO outputs from 3.3 V microcontrollers without level-shifting.
Does AP2805CMTR-G1 require external capacitors for stable operation?
Yes - a minimum 2.2 µF ceramic input capacitor (CIN) is required per datasheet Figure 27. For frequent short-circuit events, 22 µF is recommended. Output capacitor (COUT) value depends on load transient requirements; typical values range from 1 µF to 470 µF.
How does the FLAG pin behave during over-temperature events?
The FLAG pin goes low within 5–15 ms of thermal shutdown activation (TJ ≥ 150 °C), remains low until junction temperature falls below 120 °C (30 °C hysteresis), and is deglitched to reject noise spikes - confirmed in Figure 26 of the datasheet.
Is AP2805CMTR-G1 pin-compatible with other variants in the AP2805 family?
Yes - all AP2805 variants (A/B/C/D) share identical MSOP-8/SOIC-8 pinouts and footprints. Only functional differences (enable polarity, auto-discharge presence) affect system-level behavior; no PCB redesign is needed when substituting within the same package type.
AP2805CMTR-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):
- 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-SOIC
AP2805CMTR-G1 FAQ
1.How can I place an order for AP2805CMTR-G1 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP2805CMTR-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 AP2805CMTR-G1 reliable?
The price and inventory of AP2805CMTR-G1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP2805CMTR-G1 is usually 5 days.
3.What payment methods are accepted for AP2805CMTR-G1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP2805CMTR-G1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP2805CMTR-G1?
AP2805CMTR-G1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP2805CMTR-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 AP2805CMTR-G1?
For technical support, including AP2805CMTR-G1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP2805CMTR-G1 requirements.
6.How does Aetrix verify that AP2805CMTR-G1 is sourced from the original manufacturer or authorized distributors?
All AP2805CMTR-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 AP2805CMTR-G1 meets industry standards.
7.What is the process for return or replacement of AP2805CMTR-G1?
All AP2805CMTR-G1 units undergo pre-shipment inspection (PSI). If there is an issue with AP2805CMTR-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 AP2805CMTR-G1 part is unused and in its original packaging.
Return procedure for AP2805CMTR-G1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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