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Diodes Incorporated AP2142SG-13
- Part No.:
- AP2142SG-13
- Manufacturer:
- Diodes Incorporated
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AP2142SG-13.pdf
- Description:
- IC PWR SWITCH P-CHANNEL 1:2 8SOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,821
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Product details
Overview
AP2142SG-13 from Diodes Incorporated is a dual-channel, active-low high-side power switch optimized for USB 2.0-compliant hot-swap applications. It delivers 0.5A continuous load current per channel, features 115mΩ typical RDS(ON) (MSOP-8EP) / 120mΩ (SO-8), integrated 0.8A current limiting, and 7ms deglitched open-drain fault flag outputs. Used in laptop USB hubs and docking stations to manage port power sequencing and short-circuit protection.
For engineers reviewing the AP2142SG-13 datasheet, AP2142SG-13 pinout, AP2142SG-13 application, or AP2142SG-13 equivalent, this page provides verified functional context, SO-8 package mapping, dual-channel enable logic timing, thermal shutdown behavior at 140°C, and real-world USB power delivery design constraints - not generic switching specs.
Technical Context
The AP2142SG-13 implements two independent high-side N-channel MOSFET switches with matched current-limit thresholds (0.8A typ), UVLO activation at 1.9V, and thermal shutdown at 140°C with 25°C hysteresis. Each channel includes dedicated open-drain FLG outputs with 7ms blanking time to suppress false over-current reporting during capacitive load turn-on.
Its active-low EN1/EN2 inputs directly interface with USB host controllers requiring low-asserted enable signals. The device operates across 2.7V–5.5V input range, supports reverse current blocking, and maintains <1µA shutdown current - enabling compliance with USB suspend-mode power budgets.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Current Limit | 0.8A typical - clamps output during overload without external sensing resistors |
| RDS(ON) | 120mΩ max (SO-8, 5V, 0.5A) - limits I²R loss and junction temperature rise |
| Input Voltage Range | 2.7V–5.5V - covers full USB 2.0 VBUS tolerance (4.75V–5.25V) plus margin |
| Enable Logic | Active-low EN1/EN2 - directly compatible with standard USB host controller GPIOs |
| FLG Blanking Time | 7ms typical - suppresses false flags during 68µF load capacitor inrush |
| Thermal Shutdown | 140°C trip, 25°C hysteresis - enables safe auto-recovery during sustained short circuits |
| Shutdown Current | 1µA max - meets USB suspend-state leakage requirements |
Pinout & Package
AP2142SG-13 is supplied in an SO-8 package with exposed pad (Green, RoHS-compliant). The exposed tab must be soldered to PCB ground for thermal management but is not rated for electrical conduction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 GND | Power ground reference | Primary return path for internal current sense and thermal sensor; connects to exposed tab |
| 2 IN | Main power input | Accepts 2.7V–5.5V USB VBUS; feeds both channels' high-side FETs |
| 3 EN1 | Channel 1 enable input | Active-low control: pulls low to activate OUT1; compatible with 0.8V logic low threshold |
| 4 EN2 | Channel 2 enable input | Active-low control: pulls low to activate OUT2; independent of EN1 for port isolation |
| 5 FLG2 | Channel 2 fault flag | Open-drain output asserted low on over-current or over-temperature; 7ms deglitch prevents false triggers |
| 6 OUT2 | Channel 2 power output | Delivers up to 0.5A to downstream USB port; includes reverse current blocking |
| 7 OUT1 | Channel 1 power output | Delivers up to 0.5A to downstream USB port; electrically isolated from OUT2 |
| 8 FLG1 | Channel 1 fault flag | Open-drain output asserted low on over-current or over-temperature; independent reporting per channel |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent USB power switches | Enables discrete control of two downstream ports with no cross-talk or shared fault propagation |
| Integrated 0.8A current limiting | Eliminates need for external current-sense resistors while maintaining ±10% trip accuracy over temperature |
| 7ms FLG deglitch | Prevents false over-current interrupts during 68µF load capacitor charging without external RC networks |
| Reverse current blocking | Prevents backfeed from powered peripherals into VBUS when upstream supply is removed - critical for hot-plug safety |
| UVLO at 1.9V | Ensures switch remains off until VBUS stabilizes above USB specification minimum, preventing brown-out operation |
Applications
| USB 2.0 Dual-Port Hub | Laptop Docking Station |
|---|---|
Use Scenario: Two downstream USB ports require independent power control and over-current reporting to host controller. IC Role / Device Role / Timing Role: High-side power switch managing VBUS delivery per port; EN1/EN2 synchronized with USB enumeration sequence. Use Value: Enables per-port power cycling without resetting entire hub; FLG1/FLG2 provide direct interrupt sources for OS-level fault handling. |
Use Scenario: Docking station supplies power to multiple peripherals (keyboard, storage, display) via USB-C or legacy USB-A ports. IC Role / Device Role / Timing Role: Dual-channel hot-swap controller isolating each peripheral's power domain during insertion/removal. Use Value: Prevents system-wide voltage droop during hot-plug; controlled 0.6ms rise time limits inrush current to <1A per port. |
| Set-Top Box USB Host | Gaming Console Accessory Port |
Use Scenario: Consumer STB provides USB host capability for external storage or Wi-Fi dongles with strict thermal envelope. IC Role / Device Role / Timing Role: Primary power gate for USB VBUS rail; thermal shutdown protects against enclosure overheating during prolonged accessory use. Use Value: 140°C thermal cutoff with 25°C hysteresis allows safe auto-recovery after transient overload - no firmware intervention required. |
Use Scenario: Gaming console uses USB ports for headsets, controllers, and storage with mandatory short-circuit resilience. IC Role / Device Role / Timing Role: Dual-channel current-limited switch enforcing USB 2.0 port power budgets (500mA/port). Use Value: 115mΩ RDS(ON) minimizes voltage drop at 500mA, ensuring ≥4.8V at peripheral under worst-case trace resistance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel USB power switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TUSB2036IRHBR | Single-chip USB 2.0 hub controller with integrated PHY; no discrete power switch function | Requires external power switches for per-port current limiting; adds USB protocol stack complexity | Select only if full hub functionality (transaction translation, packet buffering) is needed beyond power gating |
| TPS2051BDBVR | Single-channel, active-high enable, 1.5A current limit, 70mΩ RDS(ON) | Requires two devices for dual-port operation; lacks integrated 7ms FLG deglitch - needs external RC | Choose when higher current per port (>500mA) or lower on-resistance is prioritized over board space and BOM count |
Compared with TUSB2036IRHBR and TPS2051BDBVR, AP2142SG-13 delivers true dual-channel integration with native active-low enable, factory-trimmed 0.8A current limit, and self-contained FLG deglitch - reducing component count by 3× versus discrete single-channel solutions and eliminating protocol-layer dependencies of hub ICs.
Availability
AP2142SG-13 is available at Aetrix Electronics and suitable for USB 2.0 hub designs, laptop docking stations, and set-top box peripheral interfaces requiring stable component supply, long-term lifecycle support, and green RoHS-compliant packaging.
Supply support for AP2142SG-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 consumer, computing, and industrial markets.
The AP2142/2152 family targets USB-compliant hot-swap power distribution, delivering integrated current limiting, thermal protection, and fault reporting in compact SO-8 and MSOP-8EP packages for space-constrained portable electronics.
FAQ
What is the maximum continuous load current per channel for AP2142SG-13?
The AP2142SG-13 supports 0.5A maximum continuous load current per channel under recommended operating conditions (TA ≤ +85°C, VIN = 5V). This rating accounts for thermal derating in SO-8 package and ensures reliable operation without exceeding 150°C junction temperature. The 0.8A current limit is a protective trip threshold, not a sustained output capability.
Does AP2142SG-13 support reverse current blocking, and how is it implemented?
Yes, AP2142SG-13 provides inherent reverse current blocking via its high-side N-channel MOSFET architecture and internal charge pump. When IN is unpowered but OUT is back-driven (e.g., by a powered peripheral), the internal FET body diode is reverse-biased and the gate drive is disabled, preventing current flow from OUT to IN. This is confirmed in the datasheet's "Reverse Leakage Current" spec (IREV ≤ 1µA at VOUT = 5V, VIN = 0V).
How does the 7ms FLG deglitch function interact with capacitive loads?
The 7ms deglitch timer starts upon detection of over-current and holds FLG low for that duration regardless of transient current decay. For a 68µF output capacitor charged at 5V, inrush current peaks within ~100µs and decays rapidly - well within the blanking window. This prevents false FLG assertion while still detecting sustained faults (e.g., >10ms short circuit), as verified in Figure 8 of DS31571 Rev. 7-2.
Can AP2142SG-13 be used in USB 3.0 applications?
No - AP2142SG-13 is specified and tested only for USB 2.0 compliance (480 Mbps signaling). Its 0.6ms typical rise time and lack of high-frequency noise suppression features make it unsuitable for USB 3.0 SuperSpeed signal integrity requirements. Diodes Incorporated offers the AP2280x series for USB 3.0-compatible power switching with enhanced EMI control.
AP2142SG-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:
- 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):
- 120mOhm
- 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-SOP
AP2142SG-13 FAQ
1.How can I place an order for AP2142SG-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP2142SG-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 AP2142SG-13 reliable?
The price and inventory of AP2142SG-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP2142SG-13 is usually 5 days.
3.What payment methods are accepted for AP2142SG-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP2142SG-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP2142SG-13?
AP2142SG-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP2142SG-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 AP2142SG-13?
For technical support, including AP2142SG-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP2142SG-13 requirements.
6.How does Aetrix verify that AP2142SG-13 is sourced from the original manufacturer or authorized distributors?
All AP2142SG-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 AP2142SG-13 meets industry standards.
7.What is the process for return or replacement of AP2142SG-13?
All AP2142SG-13 units undergo pre-shipment inspection (PSI). If there is an issue with AP2142SG-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 AP2142SG-13 part is unused and in its original packaging.
Return procedure for AP2142SG-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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