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Diodes Incorporated AP2822EKETR-G1
- Part No.:
- AP2822EKETR-G1
- Manufacturer:
- Diodes Incorporated
- Package:
- SC-74A, SOT-753
- Datasheet:
-
AP2822EKETR-G1.pdf
- Description:
- IC PWR SWITCH N-CHAN 1:1 SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:2,089
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Product details
Overview
AP2822EKETR-G1 from Diodes Incorporated is a 1.5A continuous-rated high-side power distribution switch in SOT-23-5 package, integrating an N-channel MOSFET with 85mΩ RDS(ON), soft-start, over-current protection with fold-back, thermal shutdown, and deglitched open-drain FLAG output. It operates from 2.7V to 5.5V and is USB-compliant for hot-plug power management in portable USB hubs.
For engineers reviewing the AP2822EKETR-G1 datasheet, AP2822EKETR-G1 pinout, AP2822EKETR-G1 application, or AP2822EKETR-G1 equivalent, key selection criteria include current limit accuracy (2.2A typ. at VOUT = 4.0V), auto-discharge capability via internal 100–200Ω pull-low resistor, UVLO threshold (2.5V typ.), and FLAG response delay (10ms typ. under over-current).
Technical Context
The AP2822EKETR-G1 implements a charge-pump-driven N-channel MOSFET gate driver enabling low RDS(ON) operation without external bootstrap components. Its protection architecture includes real-time current sensing with fold-back limiting, thermal shutdown at +150°C with +30°C hysteresis, and UVLO that holds EN inactive until VIN exceeds 2.5V.
FLAG signaling uses deglitched open-drain logic with 10ms typical delay to OCP/OTP events, requiring external pull-up. The device supports active-high enable (EN) and provides reverse-current blocking (<1.0µA leakage) when disabled, ensuring safe power sequencing in USB bus-powered systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| RDS(ON) | 85mΩ typ. at VIN = 5.0V, IOUT = 2.0A - ensures ≤212mV drop at 2.5A, meeting USB voltage-drop requirements. |
| Current Limit | 2.2A typ. at VOUT = 4.0V - sets precise 1.5A continuous load capability with fold-back short-circuit current limiting. |
| Supply Current | 68µA typ. - enables ultra-low quiescent power in always-on USB power rails. |
| UVLO Threshold | 2.5V typ. - prevents erratic switching during brown-out conditions below valid USB supply range. |
| FLAG Delay | 10ms typ. - provides noise-immune fault reporting while avoiding false triggers from transient inrush. |
| Thermal Shutdown | +150°C with +30°C hysteresis - protects MOSFET during sustained overload or poor PCB thermal design. |
| Shutdown Current | 1.0µA max. - minimizes battery drain in powered-off states of portable devices. |
Pinout & Package
SOT-23-5 (KE package) surface-mount package with 1.3mm height, 2.82mm × 1.70mm footprint, and 0.95mm lead pitch. RoHS-compliant, halogen-free, and green-certified.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (FLAG) | Fault indicator output | Open-drain, active-low signal with deglitching; requires external pull-up to report OCP/OTP faults to host controller. |
| 2 (GND) | Power ground reference | Common return path for MOSFET source, charge pump, and internal circuitry; must be low-impedance for stable protection operation. |
| 3 (EN) | Enable control input | Active-high logic input; 1.6V min. high threshold ensures compatibility with 1.8V/3.3V/5V logic systems. |
| 4 (VOUT) | Switched output terminal | Drives downstream load; internally connected to MOSFET drain; supports auto-discharge via integrated 100–200Ω pull-low resistor. |
| 5 (VIN) | Input power supply | Accepts 2.7–5.5V USB-compatible input; powers internal charge pump and bias circuits; feeds UVLO detection. |
Key Features
| Feature | Design Value |
|---|---|
| USB-compliant RDS(ON) | 85mΩ ensures <212mV drop at full 2.5A load, satisfying USB 2.0/3.0 voltage-drop specifications. |
| Auto-discharge function | Integrated 100–200Ω pull-low resistor on VOUT discharges load capacitance after shutdown, eliminating external discharge circuitry. |
| Fold-back over-current protection | Reduces short-circuit current to ~1.1A (typ.) during VOUT = 0V, lowering power dissipation and thermal stress during faults. |
| Deglitched FLAG output | 10ms minimum fault assertion time prevents false triggering from ESD or switching transients, improving system reliability. |
| No reverse current flow | <1.0µA leakage when disabled blocks backfeed from VOUT to VIN, critical for multi-rail USB hub isolation. |
Applications
| USB Bus-Powered Hubs | Hot-Plug Power Supplies |
|---|---|
|
Use Scenario: Distributing 5V power from upstream USB port to four downstream ports with independent over-current protection. IC Role / Device Role / Timing Role: High-side switch controlling VBUS delivery per port; FLAG signals fault to USB controller for port disable. Use Value: Enables per-port current limiting (1.5A) and automatic shutdown during short-circuit, preventing host port damage and maintaining compliance with USB Battery Charging v1.2. |
Use Scenario: Enabling 5V power to peripheral modules only after system initialization completes and voltage stabilizes. IC Role / Device Role / Timing Role: Controlled power rail switch with UVLO and soft-start; EN driven by microcontroller GPIO post-boot. Use Value: Prevents inrush-induced brown-out during hot-plug insertion; soft-start limits peak current to <1A, reducing stress on input capacitors and connectors. |
| Notebook USB-C Docking Stations | Battery-Charger Circuits |
|
Use Scenario: Isolating USB data lines from VBUS during sleep mode while maintaining fast wake-up power availability. IC Role / Device Role / Timing Role: Low-quiescent (68µA) high-side switch with fast turn-on (<500µs) and reverse-current blocking. Use Value: Eliminates need for external reverse-blocking diode; 1.0µA shutdown current extends battery life in suspend states without sacrificing wake latency. |
Use Scenario: Switching charging current path between battery and USB input to prevent backfeed during simultaneous charge/discharge cycles. IC Role / Device Role / Timing Role: Load switch managing power path between USB adapter and battery charger IC; FLAG reports over-temp during fast-charge. Use Value: Thermal shutdown at +150°C protects Li-ion cells from overheating; fold-back current limiting avoids thermal runaway during adapter short events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-side power switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TCK107AG,215 (Toshiba) | 1.5A rated, 70mΩ RDS(ON), no integrated FLAG output, 1.0µA shutdown current. | Lacks fault reporting; requires external comparator for OCP indication. | Select when FLAG functionality is unnecessary and lower RDS(ON) is prioritized over diagnostics. |
| TPS22915BYFPR (TI) | 1.5A rated, 50mΩ RDS(ON), no thermal shutdown, 0.5µA shutdown current, no UVLO. | Relies on system-level thermal monitoring; requires external UVLO circuit for brown-out immunity. | Select for ultra-low RDS(ON) in thermally managed environments where external protection is already implemented. |
Compared with TCK107AG,215 and TPS22915BYFPR, the AP2822EKETR-G1 uniquely integrates FLAG-based fault reporting, thermal shutdown, and UVLO in a single SOT-23-5 package-enabling self-contained USB power protection without external components, at the cost of slightly higher RDS(ON).
Availability
AP2822EKETR-G1 is available at Aetrix Electronics and suitable for USB bus-powered hubs, notebook docking stations, and battery-charger circuits requiring stable component supply, RoHS/Green compliance, and production-ready tape-and-reel packaging (3000 units per reel).
Supply support for AP2822EKETR-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
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, specializing in power management, signal integrity, and protection solutions for consumer, industrial, and computing markets.
The AP2822 product line delivers USB-compliant high-side switches with integrated protection for space-constrained portable and docking applications, emphasizing fault resilience, low quiescent power, and simplified board layout.
FAQ
What is the purpose of the internal pull-low resistor on VOUT?
The internal 100–200Ω pull-low resistor on VOUT provides automatic discharge of load capacitance after shutdown, eliminating the need for external discharge circuitry. This feature ensures rapid VOUT decay to near-zero volts within milliseconds, preventing unintended power retention in downstream circuits and simplifying USB hot-plug compliance testing.
How does the fold-back over-current protection behave during a short circuit?
During a VOUT-to-GND short, the AP2822EKETR-G1 reduces output current to ~1.1A (typ.) instead of sustaining the full 2.2A current limit. This fold-back action lowers power dissipation in the MOSFET, delaying thermal shutdown and allowing brief fault conditions to clear without permanent disable-critical for robust USB hub operation.
Can AP2822EKETR-G1 operate reliably at 2.7V input?
Yes. The device guarantees full functionality-including 85mΩ RDS(ON), 2.2A current limit, and FLAG assertion-at VIN = 2.7V (minimum operating voltage). UVLO releases at 2.5V (typ.), providing 200mV margin to ensure stable startup even with input ripple or cable drop in portable USB applications.
Is AP2822EKETR-G1 pin-compatible with other AP2822 variants?
Yes. All AP2822 variants-including AP2822AKTR-G1 through AP2822HNKETR-G1-share identical SOT-23-5 (KE) pinout and footprint. Only functional differences (current rating, enable polarity, auto-discharge presence) vary; no PCB redesign is needed when selecting alternate versions for design optimization or qualification.
AP2822EKETR-G1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- SC-74A, SOT-753
- 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):
- 1.5A
- Rds On (Typ):
- 85mOhm
- 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:
- SOT-23-5
AP2822EKETR-G1 FAQ
1.How can I place an order for AP2822EKETR-G1 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP2822EKETR-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 AP2822EKETR-G1 reliable?
The price and inventory of AP2822EKETR-G1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP2822EKETR-G1 is usually 5 days.
3.What payment methods are accepted for AP2822EKETR-G1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP2822EKETR-G1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP2822EKETR-G1?
AP2822EKETR-G1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP2822EKETR-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 AP2822EKETR-G1?
For technical support, including AP2822EKETR-G1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP2822EKETR-G1 requirements.
6.How does Aetrix verify that AP2822EKETR-G1 is sourced from the original manufacturer or authorized distributors?
All AP2822EKETR-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 AP2822EKETR-G1 meets industry standards.
7.What is the process for return or replacement of AP2822EKETR-G1?
All AP2822EKETR-G1 units undergo pre-shipment inspection (PSI). If there is an issue with AP2822EKETR-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 AP2822EKETR-G1 part is unused and in its original packaging.
Return procedure for AP2822EKETR-G1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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