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Diodes Incorporated AP2142AFGEG-7
- Part No.:
- AP2142AFGEG-7
- Manufacturer:
- Diodes Incorporated
- Package:
- 8-UDFN Exposed Pad
- Datasheet:
-
AP2142AFGEG-7.pdf
- Description:
- IC PWR SWITCH P-CHAN 1:2 8UDFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,948
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Product details
Overview
AP2142AFGEG-7 from Diodes Incorporated is a dual-channel, active-low enable, current-limited high-side power switch optimized for USB 2.0 and hot-swap applications. It delivers 0.5A continuous per channel, features 85mΩ RDS(ON) (MSOP/DFN), 2µs short-circuit response, integrated output discharge, and operates across 2.7V–5.5V input. Used in USB hubs and docking stations to manage inrush and protect against short circuits.
For engineers reviewing the AP2142AFGEG-7 datasheet, AP2142AFGEG-7 pinout, AP2142AFGEG-7 application, or AP2142AFGEG-7 equivalent, key selection criteria include active-low enable polarity, ganged vs. independent channel current limiting (1.4A vs. 0.7A), thermal shutdown threshold (140°C), FLG blanking time (7ms typ), and U-DFN3030-8 package thermal resistance (60°C/W).
Technical Context
The AP2142AFGEG-7 implements two independent P-channel MOSFET high-side switches with matched current-limit sensing and fast 2µs fault detection. Each channel includes dedicated open-drain FLG outputs with 7ms deglitch timing to suppress false over-current reports during capacitive load turn-on.
Its discharge function activates only when disabled (EN de-asserted or during UVLO), providing a 100Ω resistive path to safely bleed output capacitance. The device integrates UVLO (2.0V threshold), reverse current blocking, and thermal shutdown with 25°C hysteresis - all without external components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Current Limit (typ) | 0.7A per channel - clamps output current to prevent damage during overload or short circuit |
| RDS(ON) (typ) | 85mΩ at 5V - enables low power loss and minimal voltage drop at 0.5A load |
| Short-Circuit Response | 2µs - detects and limits fault current before system-level damage occurs |
| FLG Blanking Time | 7ms typical - suppresses transient inrush-induced false fault flags on heavy capacitive loads |
| Discharge Resistance | 100Ω - provides controlled, safe discharge of output capacitance when disabled |
| UVLO Threshold | 2.0V - prevents switch activation until input rail stabilizes, ensuring clean hot-plug behavior |
| Thermal Shutdown | 140°C with 25°C hysteresis - cycles output off/on to survive sustained overload without permanent failure |
Pinout & Package
AP2142AFGEG-7 is housed in a 3.0mm × 3.0mm U-DFN3030-8 package with exposed thermal pad (connected to GND). Pin numbering follows top-view layout: EN2 (1), GND (2), FLG1 (3), IN (4), FLG2 (5), EN1 (6), OUT1 (7), OUT2 (8).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| EN1 / EN2 | Active-low enable inputs | Low-voltage assertion (<0.8V) turns respective channel ON; supports independent control |
| OUT1 / OUT2 | High-side switched outputs | Deliver regulated VIN to downstream loads with current limiting and discharge capability |
| FLG1 / FLG2 | Open-drain fault indicators | Assert low during over-current or over-temperature; 7ms deglitch prevents false triggers |
| IN | Main power input | Accepts 2.7V–5.5V supply; feeds both channels and internal bias circuitry |
| GND | Power and signal reference | Common return path; exposed pad must be soldered to PCB ground plane for thermal performance |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent current limiting | 0.7A per channel with <100ns sensing - enables selective protection without cross-channel interference |
| Integrated output discharge | 100Ω internal N-MOS path - eliminates need for external bleeder resistors in USB port designs |
| Controlled rise/fall times | 0.6ms typical TR, 0.05ms TF - reduces EMI and inrush stress on host power rails |
| Reverse current blocking | Prevents backflow from VOUT to VIN when disabled - critical for multi-rail hot-swap systems |
| UL & CB safety certification | UL File E322375, IEC60950-1 CB certified - simplifies end-equipment regulatory approval |
Applications
| USB 2.0 Hub Power Management | Laptop Docking Station Ports |
|---|---|
Use Scenario: Managing power delivery to four downstream USB 2.0 ports on a self-powered hub board with 120µF total output capacitance. IC Role / Device Role / Timing Role: Dual high-side switch controlling VBUS per port; enables/disables individual ports under USB enumeration and fault conditions. Use Value: Prevents host controller reset due to port short circuits via 2µs fault response and isolated FLG reporting per channel. | Use Scenario: Providing hot-pluggable 5V power to HDMI, USB-C, and Ethernet modules on a laptop docking station PCB. IC Role / Device Role / Timing Role: High-side power gate with soft-start (0.6ms rise time) and UVLO - ensures clean power ramp during module insertion. Use Value: Eliminates contact arcing and system brownouts by limiting inrush to ≤0.5A per port during hot-insertion. |
| Set-Top Box USB Peripheral Ports | Industrial USB Host Controller Interface |
Use Scenario: Powering USB peripherals (keyboard, storage) on a residential gateway with strict ESD immunity requirements. IC Role / Device Role / Timing Role: Current-limited switch with 2kV HBM ESD rating - placed between SoC USB PHY and external connectors. Use Value: Survives repeated human-body ESD events without latch-up, maintaining port availability in consumer environments. | Use Scenario: Isolating USB host controller power from field-replaceable I/O modules in factory automation equipment. IC Role / Device Role / Timing Role: Hot-swap controller with thermal cycling protection - sustains operation under 85°C ambient and intermittent short faults. Use Value: Enables maintenance without system shutdown via 140°C thermal shutdown with 25°C hysteresis and automatic recovery. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel high-side power switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AP2152AFGEG-7 | Active-high enable logic (vs. active-low); identical RDS(ON), current limit, and package | Requires inverted enable signal routing; no change to protection or thermal behavior | Select when host MCU GPIOs drive EN high to activate - avoids external inverters in new designs |
| TCK112G,LF | Single-channel, 0.6A limit, 110mΩ RDS(ON), no integrated discharge, different pinout | Requires two devices for dual-channel use; lacks output discharge and ganged current limit mode | Choose only if space allows duplication and discharge is handled externally via RC networks |
Compared with AP2152AFGEG-7, the AP2142AFGEG-7 offers identical protection and thermal specs but requires active-low enable signaling - simplifying interface with legacy USB controllers. Versus TCK112G, it delivers true dual-channel integration, faster fault response, and eliminates BOM cost for external discharge components.
Availability
AP2142AFGEG-7 is available at Aetrix Electronics and suitable for USB 2.0 hubs, laptop docking stations, and set-top box peripheral ports requiring stable component supply, RoHS-compliant packaging, and long-term industrial lifecycle support.
Supply support for AP2142AFGEG-7 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 high-reliability power management, signal integrity, and protection solutions for industrial, computing, and consumer markets.
The AP2142A/AP2152A product line targets USB-compliant hot-swap power distribution, delivering integrated current limiting, discharge, and fault reporting in compact surface-mount packages for space-constrained host and peripheral designs.
FAQ
What is the maximum continuous load current per channel for AP2142AFGEG-7?
The recommended maximum continuous load current is 0.5A per channel, as specified in the datasheet's "Available Options" table. While the typical current limit is 0.7A, sustained operation above 0.5A risks exceeding thermal limits in the U-DFN3030-8 package - especially at >60°C ambient - due to its 60°C/W θJA.
Does AP2142AFGEG-7 require external components for output discharge?
No. The device integrates an internal 100Ω N-MOS discharge path activated automatically when EN1/EN2 are de-asserted or during UVLO. This eliminates the need for external resistors or FETs, reducing BOM count and PCB area - confirmed in the "Discharge Function" section of DS32191 Rev. 3-2.
How does the 7ms FLG blanking time improve system reliability?
The 7ms deglitch window prevents false over-current flag assertions caused by inrush currents into large output capacitors (e.g., 120µF USB hub loads). Without this feature, transient spikes would trigger unnecessary host controller interrupts or port disablement - verified by Figure 7's "Short Circuit with Blanking Time and Recovery" waveform.
Can AP2142AFGEG-7 be used in automotive applications?
No. Its specified operating ambient temperature range is –40°C to +85°C, and it lacks AEC-Q200 qualification, automotive-grade ESD ratings (>8kV HBM), or extended junction temperature support. Diodes Incorporated positions this device exclusively for commercial/industrial USB and hot-swap applications per DS32191 Section 1.
AP2142AFGEG-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- 8-UDFN Exposed Pad
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Switch Type:
- USB Switch
- Number of Outputs:
- 2
- Ratio - Input:Output:
- 1:2
- 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):
- 500mA
- Rds On (Typ):
- 85mOhm
- 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:
- U-DFN3030-8 (Type E)
AP2142AFGEG-7 FAQ
1.How can I place an order for AP2142AFGEG-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP2142AFGEG-7 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 AP2142AFGEG-7 reliable?
The price and inventory of AP2142AFGEG-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP2142AFGEG-7 is usually 5 days.
3.What payment methods are accepted for AP2142AFGEG-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP2142AFGEG-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP2142AFGEG-7?
AP2142AFGEG-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP2142AFGEG-7 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 AP2142AFGEG-7?
For technical support, including AP2142AFGEG-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP2142AFGEG-7 requirements.
6.How does Aetrix verify that AP2142AFGEG-7 is sourced from the original manufacturer or authorized distributors?
All AP2142AFGEG-7 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 AP2142AFGEG-7 meets industry standards.
7.What is the process for return or replacement of AP2142AFGEG-7?
All AP2142AFGEG-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP2142AFGEG-7, 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 AP2142AFGEG-7 part is unused and in its original packaging.
Return procedure for AP2142AFGEG-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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