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Diodes Incorporated AP2822CKATR-G1
- Part No.:
- AP2822CKATR-G1
- Manufacturer:
- Diodes Incorporated
- Package:
- SC-74A, SOT-753
- Datasheet:
-
AP2822CKATR-G1.pdf
- Description:
- IC PWR SWITCH N-CHAN 1:1 SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:2,150
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Product details
Overview
AP2822CKATR-G1 from Diodes Incorporated is a 1.0A 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 for USB-compliant hot-plug power management.
For engineers reviewing the AP2822CKATR-G1 datasheet, AP2822CKATR-G1 pinout, AP2822CKATR-G1 application, or AP2822CKATR-G1 equivalent, key selection criteria include current limit accuracy (1.1–2.1A at VOUT=4.0V), UVLO threshold (2.2–3.0V), shutdown current (≤1.0µA), and auto-discharge capability via internal pull-low resistor.
Technical Context
The AP2822CKATR-G1 implements a charge-pump–driven N-channel MOSFET gate driver to achieve low on-resistance while operating from 2.7V–5.5V supply. Its integrated current-sense comparator enables fold-back over-current protection that reduces short-circuit current to ≤0.7A under VOUT=0V conditions.
Thermal shutdown activates at +150°C with +30°C hysteresis, and UVLO ensures turn-on only above 2.2V (typical 2.5V) with 0.2V hysteresis. The deglitched FLAG pin asserts low within 5–15ms of fault detection and requires external pull-up for USB controller interfacing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| RDS(ON) | 85mΩ typical at VIN=5.0V, IOUT=2.0A - meets USB voltage-drop requirements under full load |
| Current Limit | 1.1–2.1A at VOUT=4.0V - configurable 1.0A continuous rating with fold-back short-circuit limiting |
| Supply Voltage Range | 2.7V to 5.5V - supports USB 5V bus and lower-voltage embedded rails |
| Shutdown Current | ≤1.0µA max - enables ultra-low-power system standby states |
| FLAG Delay Time | 5–15ms after OCP/OTP fault - provides noise-immune fault reporting for host controller response |
| UVLO Threshold | 2.2–3.0V with 0.2V hysteresis - prevents erratic switching during brown-out conditions |
| Soft-start Time | 500µs typical turn-on delay - limits inrush current to protect upstream source and downstream capacitance |
Pinout & Package
SOT-23-5 (K/KA/KB/KE variant) surface-mount package, 2.82 × 1.50 × 1.10 mm, lead-free and RoHS/Green compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | FLAG | Open-drain fault indicator - active-low signal requiring external pull-up; reports OCP/OTP faults |
| 2 | GND | Power ground reference - common return path for MOSFET source, control logic, and thermal sensing |
| 3 | EN | Logic-level enable input - active-high for AP2822C variant; controls switch turn-on/turn-off sequence |
| 4 | VIN | Main power input - supplies charge pump and internal circuitry; accepts 2.7–5.5V |
| 5 | VOUT | Switched output - delivers regulated load current through internal N-MOSFET; no reverse current flow when disabled |
Key Features
| Feature | Design Value |
|---|---|
| Auto-discharge output | Integrated 100–200Ω pull-low resistor discharges VOUT after shutdown - eliminates external discharge circuitry |
| USB-compliant RDS(ON) | 85mΩ ensures ≤500mV drop at 1.0A - satisfies USB 2.0/3.0 bus voltage regulation requirements |
| Fold-back over-current protection | Reduces short-circuit current to ≤0.7A - limits power dissipation and avoids thermal runaway during sustained shorts |
| Deglitched FLAG output | 5–15ms fault latency with built-in filtering - rejects transient noise while ensuring reliable host interrupt signaling |
| No reverse current conduction | Blocks backflow from VOUT to VIN when disabled - prevents unintended power coupling in multi-rail systems |
Applications
| USB Bus Power Switching | Hot-plug Peripheral Management |
|---|---|
|
Use Scenario: Power delivery to USB downstream ports in self-powered hubs or docking stations. IC Role / Device Role / Timing Role: High-side switch controlling VBUS rail with precise current limiting and fault reporting. Use Value: Enables safe hot-plug insertion by limiting inrush and detecting overloads before damage occurs. |
Use Scenario: Enabling/disabling power to removable modules such as PCIe add-in cards or M.2 SSD carriers. IC Role / Device Role / Timing Role: Controlled power gate with soft-start and FLAG-based fault feedback to system controller. Use Value: Prevents bus contention and voltage droop during module insertion/removal in industrial edge devices. |
| Notebook System Power Sequencing | Battery Charger Input Protection |
|
Use Scenario: Isolating auxiliary power domains (e.g., USB-C PD sink paths) during laptop sleep/wake transitions. IC Role / Device Role / Timing Role: Low-quiescent, fast-turnoff high-side switch with <1.0µA shutdown current. Use Value: Reduces system standby power loss while maintaining rapid wake-up readiness via EN-controlled sequencing. |
Use Scenario: Protecting battery charger IC inputs from reverse current and over-current events during adapter hot-plug. IC Role / Device Role / Timing Role: Reverse-blocking power switch placed between AC/DC adapter and charging controller. Use Value: Eliminates need for external Schottky diode and current-sense amplifier, reducing BOM count and board area. |
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 |
|---|---|---|---|
| AP2822DKATR-G1 | Active-low enable (EN low = ON), same 1.0A rating, identical package and protection features | Requires inverted control logic from host MCU or PMIC; suitable where active-low enable simplifies system-level timing | Select when system architecture uses active-low enable signals to avoid level-shifting or inverter gates |
| TPS22965DRLR | 1.5A continuous, 44mΩ RDS(ON), 1.6V–5.5V range, no integrated auto-discharge resistor | Lacks internal pull-low for VOUT discharge - requires external circuitry for controlled ramp-down | Choose for higher current headroom and lower on-resistance where board space allows added discharge components |
Compared with AP2822CKATR-G1, AP2822DKATR-G1 offers identical performance with inverted enable polarity, while TPS22965DRLR provides lower RDS(ON) and higher current but demands external discharge design - making AP2822CKATR-G1 optimal for compact USB-compliant designs needing integrated auto-discharge.
Availability
AP2822CKATR-G1 is available at Aetrix Electronics and suitable for USB power management, notebook system sequencing, and hot-plug peripheral control requiring stable component supply across industrial, computing, and consumer electronics programs.
Supply support for AP2822CKATR-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 high-reliability applications.
The AP2822 series belongs to Diodes' high-side load switch product line, engineered specifically for USB-compliant power distribution with integrated fault handling and minimal external component count.
FAQ
What is the function of the FLAG pin on AP2822CKATR-G1?
The FLAG pin is an open-drain, active-low fault indicator that asserts low during over-current or over-temperature events. It requires an external pull-up resistor to the host controller's logic rail and provides deglitched output with 5–15ms delay to reject noise while ensuring reliable fault reporting to USB controllers or microcontrollers.
Does AP2822CKATR-G1 support reverse current blocking?
Yes - the AP2822CKATR-G1 blocks reverse current flow from VOUT to VIN when disabled, with leakage ≤1.0µA. This eliminates the need for external reverse-blocking diodes in battery backup or multi-source power architectures where backfeed must be prevented.
How does the soft-start feature operate in AP2822CKATR-G1?
Soft-start limits inrush current by controlling the MOSFET turn-on slew rate, achieving typical 500µs turn-on time from EN activation to 90% VOUT. This prevents input voltage droop and stress on upstream capacitors and power sources during hot-plug events in USB and portable applications.
Is AP2822CKATR-G1 recommended for new designs?
No - Diodes Incorporated marks AP2822 as "NOT RECOMMENDED FOR NEW DESIGN" per DS41399 Rev. 1-3. It remains available for legacy support and existing production, but designers should evaluate newer alternatives like AP2823 or industry equivalents for long-term program viability.
AP2822CKATR-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
AP2822CKATR-G1 FAQ
1.How can I place an order for AP2822CKATR-G1 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP2822CKATR-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 AP2822CKATR-G1 reliable?
The price and inventory of AP2822CKATR-G1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP2822CKATR-G1 is usually 5 days.
3.What payment methods are accepted for AP2822CKATR-G1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP2822CKATR-G1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP2822CKATR-G1?
AP2822CKATR-G1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP2822CKATR-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 AP2822CKATR-G1?
For technical support, including AP2822CKATR-G1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP2822CKATR-G1 requirements.
6.How does Aetrix verify that AP2822CKATR-G1 is sourced from the original manufacturer or authorized distributors?
All AP2822CKATR-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 AP2822CKATR-G1 meets industry standards.
7.What is the process for return or replacement of AP2822CKATR-G1?
All AP2822CKATR-G1 units undergo pre-shipment inspection (PSI). If there is an issue with AP2822CKATR-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 AP2822CKATR-G1 part is unused and in its original packaging.
Return procedure for AP2822CKATR-G1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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