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Diodes Incorporated AP2822CKETR-G1
- Part No.:
- AP2822CKETR-G1
- Manufacturer:
- Diodes Incorporated
- Package:
- SC-74A, SOT-753
- Datasheet:
-
AP2822CKETR-G1.pdf
- Description:
- IC PWR SWITCH N-CHAN 1:1 SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:4,761
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Product details
Overview
AP2822CKETR-G1 from Diodes Incorporated is a high-side power distribution switch integrating an N-channel MOSFET, charge pump, and protection circuitry for USB-compliant hot-plug power control. It delivers 1.0A continuous load current, features 85mΩ RDS(ON), operates from 2.7V–5.5V, and includes soft-start, over-current fold-back, thermal shutdown, and deglitched open-drain FLAG output for fault reporting to USB controllers.
For engineers reviewing the AP2822CKETR-G1 datasheet, AP2822CKETR-G1 pinout, AP2822CKETR-G1 application, or AP2822CKETR-G1 equivalent, key selection criteria include its SOT-23-5 package, active-high enable with auto-discharge, 1.0A current rating, UVLO threshold of 2.5V (typ), and compliance with USB voltage-drop requirements in bus-powered hubs and notebook power rails.
Technical Context
The AP2822CKETR-G1 implements a charge-pump–driven N-channel MOSFET high-side switch with integrated current-sense amplifier, thermal sensor, and deglitched fault flag logic. Its fold-back over-current protection reduces short-circuit power dissipation, while soft-start limits inrush current during turn-on.
Under-voltage lockout ensures the device remains disabled below 2.5V (typ), and the open-drain FLAG pin asserts low after a 10ms (typ) delay upon OCP or OTP detection. The internal pull-low resistor on VOUT enables automatic discharge when disabled - a feature specific to the "C" variant with auto-discharge functionality.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| RDS(ON) | 85 mΩ (typ) at VIN = 5V, IOUT = 2.0A - meets USB 5V drop specification under full load |
| Continuous Load Current | 1.0 A - rated for AP2822C variants; supports USB bus-powered hub and peripheral rail switching |
| Supply Voltage Range | 2.7 V to 5.5 V - compatible with 3.3V and 5V system rails including USB VBUS |
| Enable Logic | Active-high EN - simplifies interface with USB controller GPIO without level-shifting |
| FLAG Response Delay | 10 ms (typ) - provides noise-immune fault indication timing for host controller polling |
| Shutdown Current | 1.0 µA (max) - enables ultra-low-power standby in battery-sensitive applications |
| UVLO Threshold | 2.5 V (typ) - prevents erratic switching during brown-out or weak supply conditions |
Pinout & Package
SOT-23-5 package (JEDEC MO-178AA, 2.9mm × 1.6mm × 1.1mm), lead-free and RoHS/Green compliant (G1 suffix). Thermal resistance θJA = 200°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | FLAG | Open-drain fault indicator - requires external pull-up; asserts low on OCP/OTP |
| 2 | GND | Power ground reference - shared return path for MOSFET source and internal circuits |
| 3 | EN | Active-high enable input - logic high ≥1.6V enables switch; low disables with auto-discharge |
| 4 | VIN | Main power input - connects to upstream 2.7–5.5V rail (e.g., USB VBUS) |
| 5 | VOUT | Switched output - drives downstream load; internal pull-low resistor discharges load on disable |
Key Features
| Feature | Design Value |
|---|---|
| Auto-discharge on shutdown | Integrated 100–200Ω pull-low resistor on VOUT - eliminates need for external bleeder in portable USB devices |
| USB-compliant RDS(ON) | 85mΩ max - ensures ≤5% voltage drop at 1.0A, satisfying USB 2.0/3.0 power delivery specs |
| Fold-back over-current protection | Reduces short-circuit current to ~0.7A (typ) - limits power dissipation and avoids thermal runaway |
| Deglitched FLAG output | 10ms fault delay + 5ms debounce - rejects transient glitches and ensures reliable host interrupt signaling |
| Low quiescent current | 68µA (typ) in active mode - minimizes standby loss in always-on USB controller subsystems |
Applications
| USB Bus-Powered Hubs | Hot-Plug Notebook Peripherals |
|---|---|
|
Use Scenario: Power switching for downstream ports in self- or bus-powered USB 2.0/3.0 hubs. IC Role / Device Role / Timing Role: High-side load switch controlling VBUS delivery per port with fault isolation. Use Value: Enables individual port power cycling and OCP-triggered FLAG reporting to hub controller without external FET or sense resistors. |
Use Scenario: Controlled power enable for ExpressCard, USB-C docking, or Thunderbolt add-in modules. IC Role / Device Role / Timing Role: Hot-plug power sequencer with soft-start and reverse-current blocking. Use Value: Prevents backfeed into host during insertion/removal and limits inrush to avoid VBUS droop affecting main system. |
| Battery-Charger Input Protection | Embedded System Rail Switching |
|
Use Scenario: Isolating charger IC input from system battery or adapter during fault or sleep. IC Role / Device Role / Timing Role: Reverse-current–free high-side switch with UVLO and thermal monitoring. Use Value: Blocks leakage (<1.0µA shutdown current) and prevents charger damage during battery overvoltage or thermal events. |
Use Scenario: Dynamic power gating of non-critical subsystems (e.g., sensors, comms ICs) in industrial controllers. IC Role / Device Role / Timing Role: Low-RDS(ON) rail switch with precise enable timing and fault visibility. Use Value: Reduces idle power by >95% vs. LDO-based solutions while providing real-time fault status via FLAG pin. |
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 |
|---|---|---|---|
| AP2822DKTR-G1 | Active-low enable, same 1.0A rating, identical package and protection features | Requires inverted logic drive from host controller; no change in power path design | Select when host GPIO defaults to high or when sharing enable logic with other active-low peripherals |
| TPS22965DSGT | Lower RDS(ON) (42mΩ), higher 2.5A rating, but no integrated auto-discharge resistor | Needs external 100kΩ pull-down for VOUT discharge; lacks deglitched FLAG with fixed delay | Prefer for higher-current, lower-drop applications where board space allows external discharge circuit |
Compared with AP2822CKETR-G1, the DKTR-G1 offers identical performance with inverted control logic, while the TPS22965DSGT trades auto-discharge and FLAG timing predictability for lower on-resistance and higher current capacity - requiring additional passive components for equivalent functionality.
Availability
AP2822CKETR-G1 is available at Aetrix Electronics and suitable for USB bus-powered hubs, notebook peripheral interfaces, and battery-charger input protection requiring stable component supply and RoHS/Green compliance.
Supply support for AP2822CKETR-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, computing, and industrial markets.
The AP2822 belongs to Diodes' high-side load switch product line, designed specifically for USB-compliant power distribution with integrated protection, soft-start, and fault reporting in space-constrained applications.
FAQ
What is the function of the FLAG pin on AP2822CKETR-G1?
The FLAG pin is an open-drain fault indicator that pulls low (≤70mV at 5mA sink) after a 10ms (typ) deglitched delay when over-current or over-temperature conditions occur. It requires an external pull-up resistor and signals the host controller to initiate corrective action, such as disabling the port or logging the event.
Does AP2822CKETR-G1 support reverse current blocking?
Yes - the AP2822CKETR-G1 blocks reverse current (IREVERSE ≤ 1.0µA typ) when disabled, preventing backflow from VOUT to VIN. This is achieved through internal MOSFET gate control and is confirmed in the Electrical Characteristics table under "Reverse Current" test condition.
How does the auto-discharge feature work on AP2822CKETR-G1?
When the EN pin is driven low, the AP2822CKETR-G1 activates an internal 100–200Ω pull-down resistor between VOUT and GND, discharging downstream capacitance. This eliminates the need for external bleed resistors and ensures rapid, controlled rail collapse - critical for USB hot-plug compliance and ESD-safe port removal.
Is AP2822CKETR-G1 recommended for new designs?
No - Diodes Incorporated marks AP2822 as "NOT RECOMMENDED FOR NEW DESIGN" in the datasheet (Rev. 1–3, Nov 2018). While fully functional and supported for existing production, designers should evaluate newer alternatives like the AP2823 series or industry equivalents for long-term supply assurance and enhanced specs.
AP2822CKETR-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):
- 1A
- 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
AP2822CKETR-G1 FAQ
1.How can I place an order for AP2822CKETR-G1 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP2822CKETR-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 AP2822CKETR-G1 reliable?
The price and inventory of AP2822CKETR-G1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP2822CKETR-G1 is usually 5 days.
3.What payment methods are accepted for AP2822CKETR-G1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP2822CKETR-G1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP2822CKETR-G1?
AP2822CKETR-G1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP2822CKETR-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 AP2822CKETR-G1?
For technical support, including AP2822CKETR-G1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP2822CKETR-G1 requirements.
6.How does Aetrix verify that AP2822CKETR-G1 is sourced from the original manufacturer or authorized distributors?
All AP2822CKETR-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 AP2822CKETR-G1 meets industry standards.
7.What is the process for return or replacement of AP2822CKETR-G1?
All AP2822CKETR-G1 units undergo pre-shipment inspection (PSI). If there is an issue with AP2822CKETR-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 AP2822CKETR-G1 part is unused and in its original packaging.
Return procedure for AP2822CKETR-G1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AP2822CKETR-G1 Tags
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