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Diodes Incorporated AP2111SG-13
- Part No.:
- AP2111SG-13
- Manufacturer:
- Diodes Incorporated
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AP2111SG-13.pdf
- Description:
- IC PWR SWITCH P-CHANNEL 1:1 8SOP
- Quantity:
- Payment:
- Shipping:
Inventory:7,273
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Product details
Overview
AP2111SG-13 from Diodes Incorporated is a single-channel, active-high enable, high-side USB power switch with 2.45A current limiting, 90mΩ RDS(ON) at 5V, and integrated short-circuit/thermal protection. It operates from 2.7V–5.5V input, delivers controlled 0.6ms rise time, and features open-drain FLG output with 7ms deglitch for reliable fault reporting in hot-swap USB ports.
For engineers reviewing the AP2111SG-13 datasheet, AP2111SG-13 pinout, AP2111SG-13 application, or AP2111SG-13 equivalent, this device supports precise current-limited power delivery in USB 2.0-compliant host/hub designs, consumer electronics power sequencing, and thermally constrained embedded hot-plug interfaces where reverse-current blocking and auto-discharge are required.
Technical Context
The AP2111 implements a monolithic N-channel MOSFET high-side switch with integrated current-sense FET, UVLO (1.9V threshold), and thermal shutdown at 140°C with 25°C hysteresis. Its FLG output uses internal deglitch logic to suppress false over-current triggers during capacitive load turn-on.
It supports active-high enable control, provides 290Ω internal discharge resistance when disabled, and maintains reverse current blocking with <0.05µA leakage. The SO-8 package delivers θJA = 110°C/W; MSOP-8EP achieves 60°C/W via exposed pad grounding.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Current Limit | 2.45A typical - sets maximum safe load current without external sensing |
| RDS(ON) | 90mΩ at VIN=5V, TA=25°C - minimizes conduction loss and self-heating in 2A applications |
| Input Voltage Range | 2.7V–5.5V - matches USB 2.0 bus and wide-input industrial supply rails |
| Rise Time | 0.6ms typical - controls inrush current during hot-plug insertion to limit system surge |
| FLG Blanking Time | 7ms typical - prevents false fault reporting during capacitor charging transients |
| Shutdown Current | 1µA max - enables ultra-low-power standby in battery-backed or always-on systems |
| UVLO Threshold | 1.9V typical - ensures switch remains off until stable USB power is established |
Pinout & Package
AP2111SG-13 is supplied in SO-8 package (Green, RoHS-compliant, lead-free). Exposed pad must be connected to GND for thermal performance but not used as primary current return path.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN (Pins 2,3) | Power Input | Must be externally tied together; accepts 2.7–5.5V supply; feeds internal MOSFET source |
| EN (Pin 4) | Enable Control | Active-high logic input; enables switch when >2V; disables at <0.8V |
| FLG (Pin 5) | Fault Reporting | Open-drain output pulled low during over-current or thermal fault after 7ms blanking |
| OUT (Pins 6,7) | Power Output | Must be externally tied together; delivers switched VIN to load with current limiting |
| GND (Pin 1) | Ground Reference | Primary ground connection; connects to exposed pad for thermal management |
| NC (Pin 8) | No Connect | No internal connection; recommended to tie to OUT for noise immunity |
Key Features
| Feature | Design Value |
|---|---|
| Auto-discharge function | 290Ω internal discharge path activates on disable - safely bleeds 120µF output caps in <1s without external components |
| Reverse current blocking | <0.05µA leakage at VOUT=5V, VIN=0V - prevents backfeed from powered downstream loads |
| Controlled turn-on slew rate | 0.6ms rise time with 1µF load - limits dI/dt to <3.3A/ms, reducing EMI and connector arcing |
| Integrated UVLO | 1.9V threshold with hysteresis - guarantees clean startup only after stable USB rail is present |
| Thermal protection cycling | 140°C trip / 115°C recovery - sustains operation under sustained overload without latch-off or manual reset |
Applications
| USB Host Port Protection | Hot-Plug Module Power Control |
|---|---|
|
Use Scenario: Desktop PC or monitor USB upstream port supplying power to peripherals. IC Role / Device Role / Timing Role: High-side power switch enforcing USB 2.0 current compliance and reporting over-current to host controller via FLG. Use Value: Prevents bus collapse during shorted cable insertion while enabling automatic recovery after fault removal. |
Use Scenario: Industrial docking station inserting PCIe or SATA modules into live backplane. IC Role / Device Role / Timing Role: Controlled power ramp generator with 0.6ms rise time and UVLO hold-off. Use Value: Eliminates contact bounce-induced transients and ensures sequenced voltage ramp before logic initialization. |
| Laptop USB Hub Power Management | Set-Top Box Peripheral Port Switching |
|
Use Scenario: Slim-profile laptop integrating dual USB-C ports with shared 5V rail. IC Role / Device Role / Timing Role: Single-channel current-limited switch with reverse-blocking and auto-discharge for isolated port control. Use Value: Enables independent port disable without cross-talk; discharges port capacitance within 500ms after disconnect. |
Use Scenario: Cable TV set-top box with front-panel USB and HDMI-CEC accessory ports. IC Role / Device Role / Timing Role: Hot-swap power gate with FLG-driven firmware alert and thermal foldback under sustained overload. Use Value: Allows user-initiated peripheral attach/detach without system reboot; maintains thermal safety at 85°C ambient. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-side USB power switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TUSB2036IRHBR | 3-channel USB 2.0 transceiver with integrated 500mA switches; no programmable current limit or FLG output | Designed for full USB hub IC integration; lacks discrete current-limit precision and thermal reporting | Select when needing full PHY + switch in one package; avoid when >1A per port or fault diagnostics are required |
| TPS2051BDBVR | Single-channel 1.5A current-limited switch; 130mΩ RDS(ON); 10ms FLG blanking; no auto-discharge | Lower current rating and higher on-resistance; requires external discharge circuit for same functionality | Select for cost-sensitive 1.5A applications where discharge is handled externally; verify thermal margin at 85°C |
Compared with TUSB2036IRHBR and TPS2051BDBVR, AP2111SG-13 delivers higher current capacity (2.45A), lower conduction loss (90mΩ), integrated auto-discharge, and tighter FLG timing (7ms) - making it optimal for compact, thermally constrained USB ports requiring autonomous fault handling.
Availability
AP2111SG-13 is available at Aetrix Electronics and suitable for USB 2.0 host port protection, hot-plug module power sequencing, and set-top box peripheral switching requiring stable component supply across industrial temperature ranges and long-term production cycles.
Supply support for AP2111SG-13 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
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, specializing in power management, signal integrity, and protection solutions for high-volume electronics markets.
The AP21xx family targets USB-compliant hot-swap power distribution, delivering integrated current limiting, thermal safety, and fault reporting in space-constrained packages for consumer, computing, and communications equipment.
FAQ
What is the maximum continuous load current supported by AP2111SG-13?
The AP2111SG-13 supports up to 2.0A continuous load current per Diodes' Recommended Operating Conditions. Although its current limit is 2.45A typical, sustained operation above 2.0A risks thermal shutdown depending on PCB layout, ambient temperature, and airflow. Derating is required above 60°C ambient.
Does AP2111SG-13 require external components for basic USB port protection?
No external components are required for core USB port protection. The device integrates UVLO, current limiting, thermal shutdown, FLG deglitch, and auto-discharge. Only two external ceramic bypass capacitors (0.1µF at IN-GND and 0.01–0.1µF at OUT-GND) are recommended for stability and transient immunity.
How does the FLG pin behave during a short-circuit event?
When a short occurs, the FLG pin remains high for ~7ms (deglitch timeout), then pulls low and stays low until both over-current and over-temperature conditions clear. If the short persists, FLG stays asserted; upon removal, FLG returns high within 100µs after output voltage recovers above 0.5V.
Can AP2111SG-13 be used with 3.3V-only systems?
Yes - its 2.7V–5.5V input range fully supports 3.3V systems. At VIN=3.3V, RDS(ON) rises to 115mΩ (typ), and short-circuit response time extends to 5µs. EN logic thresholds remain valid: VIH ≥2V, VIL ≤0.8V, ensuring compatibility with standard 3.3V GPIO drivers.
AP2111SG-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Switch Type:
- USB Switch
- Number of Outputs:
- 1
- Ratio - Input:Output:
- 1:1
- Output Configuration:
- High Side
- Output Type:
- P-Channel
- Interface:
- On/Off
- Voltage - Load:
- 2.7V ~ 5.5V
- Voltage - Supply (Vcc/Vdd):
- Not Required
- Current - Output (Max):
- 2A
- Rds On (Typ):
- 95mOhm
- Input Type:
- Non-Inverting
- Features:
- Load Discharge, Status Flag
- Fault Protection:
- Current Limiting (Fixed), Over Temperature, Reverse Current, UVLO
- Operating Temperature:
- -35°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOP
AP2111SG-13 FAQ
1.How can I place an order for AP2111SG-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP2111SG-13 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 AP2111SG-13 reliable?
The price and inventory of AP2111SG-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP2111SG-13 is usually 5 days.
3.What payment methods are accepted for AP2111SG-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP2111SG-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP2111SG-13?
AP2111SG-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP2111SG-13 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 AP2111SG-13?
For technical support, including AP2111SG-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP2111SG-13 requirements.
6.How does Aetrix verify that AP2111SG-13 is sourced from the original manufacturer or authorized distributors?
All AP2111SG-13 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 AP2111SG-13 meets industry standards.
7.What is the process for return or replacement of AP2111SG-13?
All AP2111SG-13 units undergo pre-shipment inspection (PSI). If there is an issue with AP2111SG-13, 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 AP2111SG-13 part is unused and in its original packaging.
Return procedure for AP2111SG-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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