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Diodes Incorporated AP2822HKETR-G1
- Part No.:
- AP2822HKETR-G1
- Manufacturer:
- Diodes Incorporated
- Package:
- SC-74A, SOT-753
- Datasheet:
-
AP2822HKETR-G1.pdf
- Description:
- IC PWR SWITCH N-CHAN 1:1 SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:3,589
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Product details
Overview
AP2822HKETR-G1 from Diodes Incorporated is a high-side power distribution switch with integrated N-channel MOSFET, charge pump, and protection circuitry. It delivers 2.0A continuous load capability, 85mΩ RDS(ON), and operates from 2.7V to 5.5V input - designed specifically for USB-compliant hot-plug power management in notebook and motherboard applications.
For engineers reviewing the AP2822HKETR-G1 datasheet, AP2822HKETR-G1 pinout, AP2822HKETR-G1 application, or AP2822HKETR-G1 equivalent, key selection criteria include its active-low enable logic, auto-discharge output pull-low resistor, deglitched open-drain FLAG fault indicator, and thermal/over-current fold-back protection under USB voltage drop constraints.
Technical Context
The AP2822HKETR-G1 implements a charge-pump–driven N-channel MOSFET gate driver to achieve low on-resistance while operating from a 2.7–5.5V supply. Its internal UVLO (2.5V typ.) ensures reliable turn-on only above valid input voltage, and soft-start limits inrush current during hot-plug events.
Protection architecture includes over-current detection with fold-back limiting (2.7A max short-circuit current), thermal shutdown at +150°C with +30°C hysteresis, and reverse-current blocking when disabled. The open-drain FLAG pin asserts low after a 10ms deglitched delay upon fault detection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| RDS(ON) | 85mΩ typical at VIN = 5V, IOUT = 2.0A - meets USB 5V bus voltage-drop requirements |
| Continuous Current | 2.0A - fixed rating per AP2822H variant, verified across -40°C to +85°C ambient |
| Enable Logic | Active-low EN - simplifies direct interface with USB controller GPIOs asserting low to enable |
| FLAG Output | Open-drain, deglitched, active-low - requires external pull-up; indicates OCP/OTP faults with 10ms delay |
| Auto-discharge | Integrated 150Ω pull-low resistor on VOUT - discharges load capacitance after shutdown |
| Supply Current | 68µA typical - enables ultra-low quiescent power in always-on USB power rail monitoring |
| UVLO Threshold | 2.5V typical with 0.2V hysteresis - prevents erratic switching near brown-out conditions |
Pinout & Package
SOT-23-5 package (KE variant), 2.9mm × 1.6mm footprint, 1.1mm height, lead-free and RoHS/Green compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Power ground reference for internal circuits and thermal dissipation path |
| 2 | FLAG | Open-drain fault indicator - sinks current when OCP or OTP occurs; requires external pull-up |
| 3 | EN | Active-low enable input - pulled low by host controller to activate power switch |
| 4 | VOUT | Switched output - connects to USB load; includes internal 150Ω pull-down for auto-discharge |
| 5 | VIN | Main power input - accepts 2.7–5.5V; feeds internal charge pump and protection comparators |
Key Features
| Feature | Design Value |
|---|---|
| USB-compliant RDS(ON) | 85mΩ ensures ≤260mV drop at 3A - satisfies USB 2.0/3.0 bus voltage regulation specs |
| Hot-plug inrush control | Internal soft-start limits peak inrush to <1.5× steady-state current - prevents VBUS sag during plug-in |
| Fold-back over-current protection | Reduces short-circuit current to 1.1A (typ.) - sustains safe operation during sustained VOUT-to-GND faults |
| No reverse current flow | Blocks backfeed from VOUT to VIN when disabled - eliminates need for external blocking diode |
| Thermal robustness | +150°C shutdown with +30°C hysteresis - enables recovery without host intervention after transient overload |
Applications
| USB Bus Power Switching | Hot-plug Hub Supply Control |
|---|---|
Use Scenario: Managing power delivery to downstream USB ports on a self-powered hub with independent port enable/disable. IC Role / Device Role / Timing Role: High-side switch controlling VBUS routing per port; responds to host USB controller EN signals within 500µs. Use Value: Enables individual port power cycling without affecting upstream VBUS integrity or requiring external current-sense amplifiers. | Use Scenario: Enabling clean power sequencing during insertion of USB peripherals into industrial docking stations. IC Role / Device Role / Timing Role: Hot-plug power switch with soft-start and FLAG fault reporting to system microcontroller. Use Value: Prevents system reset due to inrush current; FLAG alerts firmware to disconnect faulty devices before thermal shutdown. |
| Notebook USB Port Protection | Battery Charger Input Switching |
Use Scenario: Isolating USB VBUS from battery-backed systems during sleep mode or battery-only operation. IC Role / Device Role / Timing Role: Load switch with zero reverse current and auto-discharge - ensures rapid VOUT decay after disable. Use Value: Eliminates leakage paths that drain battery; internal pull-down discharges port capacitance in <10ms. | Use Scenario: Controlling input power to USB-C PD charger ICs from shared system rails with dynamic load sharing. IC Role / Device Role / Timing Role: High-side switch enabling/disabling charger input based on battery state-of-charge and thermal status. Use Value: FLAG signal integrates directly with charger fault-handling logic; 2.0A rating supports up to 10W charging loads. |
Availability
AP2822HKETR-G1 is available at Aetrix Electronics and suitable for USB power management, hot-plug hub designs, and notebook motherboard power sequencing requiring stable component supply and full RoHS/Green compliance.
Supply support for AP2822HKETR-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 semiconductor manufacturer specializing in discrete, analog, and mixed-signal solutions for power management, signal integrity, and connectivity applications.
The AP2822 product line delivers highly integrated, USB-compliant high-side power switches targeting space-constrained portable and computing platforms where reliability, low RDS(ON), and comprehensive fault reporting are critical.
FAQ
What is the function of the FLAG pin on AP2822HKETR-G1?
The FLAG pin is an open-drain, deglitched fault indicator that pulls low when over-current or over-temperature conditions occur. It features a 10ms delay to reject transient faults and requires an external pull-up resistor to VCC. Its active-low assertion allows direct connection to microcontroller interrupt inputs for real-time fault handling without additional logic.
Does AP2822HKETR-G1 support auto-discharge, and how does it work?
Yes - AP2822HKETR-G1 includes an internal 150Ω pull-down resistor between VOUT and GND activated during shutdown. This discharges load capacitance rapidly (typically <10ms), preventing residual voltage from interfering with downstream device reset or causing latch-up in connected peripherals after power removal.
What is the difference between AP2822H and AP2822HN variants?
AP2822H includes the internal VOUT pull-down resistor for auto-discharge; AP2822HN omits it. Both deliver 2.0A continuous current and share identical electrical specs except for discharge behavior. H variants are preferred for USB applications requiring fast VOUT decay; HN variants suit systems needing floating VOUT during standby.
Is AP2822HKETR-G1 recommended for new designs?
No - Diodes Incorporated explicitly marks AP2822 as "NOT RECOMMENDED FOR NEW DESIGN" with no alternate part provided. It remains available for legacy support and existing production, but designers should consult Diodes' latest high-side switch portfolio (e.g., AP2823 series) for new projects requiring enhanced features or extended lifecycle.
AP2822HKETR-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):
- 2A
- Rds On (Typ):
- 85mOhm
- Input Type:
- Non-Inverting
- Features:
- Load Discharge, Status Flag
- Fault Protection:
- Current Limiting (Fixed), Over Temperature, Short Circuit
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
AP2822HKETR-G1 FAQ
1.How can I place an order for AP2822HKETR-G1 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP2822HKETR-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 AP2822HKETR-G1 reliable?
The price and inventory of AP2822HKETR-G1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP2822HKETR-G1 is usually 5 days.
3.What payment methods are accepted for AP2822HKETR-G1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP2822HKETR-G1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP2822HKETR-G1?
AP2822HKETR-G1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP2822HKETR-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 AP2822HKETR-G1?
For technical support, including AP2822HKETR-G1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP2822HKETR-G1 requirements.
6.How does Aetrix verify that AP2822HKETR-G1 is sourced from the original manufacturer or authorized distributors?
All AP2822HKETR-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 AP2822HKETR-G1 meets industry standards.
7.What is the process for return or replacement of AP2822HKETR-G1?
All AP2822HKETR-G1 units undergo pre-shipment inspection (PSI). If there is an issue with AP2822HKETR-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 AP2822HKETR-G1 part is unused and in its original packaging.
Return procedure for AP2822HKETR-G1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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