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Diodes Incorporated AP22654WU-7
- Part No.:
- AP22654WU-7
- Manufacturer:
- Diodes Incorporated
- Package:
- SOT-23-6 Thin, TSOT-23-6
- Datasheet:
-
AP22654WU-7.pdf
- Description:
- LOAD SWITCH TSOT26 T&R 3K
- Quantity:
- Payment:
- Shipping:
Inventory:2,340
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Product details
Overview
AP22654WU-7 from Diodes Incorporated is a single-channel precision adjustable high-side power switch optimized for USB-compliant hot-swap applications, delivering up to 3.1A continuous load current with ±12% current-limit accuracy at 1.0A (RLIM = 6.8kΩ), 5µs typical short-circuit response time, and integrated reverse-current blocking, overtemperature, UVLO, and fault reporting via open-drain FAULT pin.
For engineers reviewing the AP22654WU-7 datasheet, AP22654WU-7 pinout, AP22654WU-7 application, or AP22654WU-7 equivalent, this device serves as a robust, programmable current-limited power distribution switch for systems requiring precise overload control, capacitive load management, and fault-safe enable/disable sequencing in 3.0–5.5V rails.
Technical Context
The AP22654WU-7 implements a thermally protected, slew-rate-controlled high-side NMOS switch with internal current-sense FET architecture-eliminating external sense resistors-and integrates deglitched FAULT reporting with 7ms blanking to suppress false triggers during transient surges.
Its functional block includes UVLO (2.25V trip, 100mV hysteresis), reverse-voltage comparator (65mV trip), ROCP (0.32A typ), thermal shutdown at +155°C (+35°C hysteresis), and soft-start with 1.0ms typical rise time-enabling safe inrush control into heavy capacitive loads like USB 5V bus outputs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Max Continuous Load Current | 3.1A - supports full USB PD-compatible downstream ports and docking station power rails without derating. |
| Adjustable Current Limit Range | 0.4A to 3.56A (typ) - set via external ILIM resistor (1.91kΩ–16.9kΩ), enabling precise matching to system-level fuse and upstream supply limits. |
| Current-Limit Accuracy | ±12% at 1.0A (RLIM = 6.8kΩ) - ensures predictable trip margin for OCP coordination with host controller and power delivery ICs. |
| Short-Circuit Response Time | 5µs (typ) - enables rapid current clamping before trace fusing or MOSFET failure in sustained short events. |
| RDS(ON) | 50–75 mΩ (25°C, VIN = 5V) - minimizes conduction loss and self-heating under 3A load, supporting TSOT26 thermal performance (RθJA = 89°C/W). |
| FAULT Blanking Time | 7ms (typ) - filters noise-induced overcurrent transients without external RC components, simplifying fault-handling logic. |
| Input Voltage Range | 3.0V to 5.5V - compatible with standard USB 2.0/3.x VBUS, industrial 3.3V/5V rails, and battery-backed backup supplies. |
| Enable Polarity | Active-low EN - matches common microcontroller GPIO drive capability and legacy USB hub enable signaling. |
Pinout & Package
TSOT26 (Type A1) package: 2.9mm × 1.6mm × 0.6mm, exposed thermal pad connected to GND for enhanced power dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN (Pin 6) | Power Input | Connects to 3.0–5.5V source; requires ≥0.1µF bypass + ≥10µF bulk capacitor near IC for stable UVLO and transient immunity. |
| GND (Pin 2) | Ground Reference | Primary ground return; must connect to PCB exposed pad for thermal and EMI performance-no signal routing on pad. |
| FAULT (Pin 3) | Fault Indicator Output | Open-drain active-low output asserted during overcurrent, overtemperature, reverse-voltage, or UVLO; pulls low ≤180mV @ 1mA sink. |
| ILIM (Pin 5) | Current-Limit Programming | Sinks current proportional to programmed limit (ILIM = 6800 / RLIM(kΩ) mA); requires 1% resistor with minimal trace length to preserve accuracy. |
| EN (Pin 4) | Enable Control | Active-low logic input; <0.4V disables switch, >1.5V enables; leakage ±2µA allows direct MCU GPIO interface without pull-up/down. |
| OUT (Pin 1) | Switched Power Output | Delivers regulated current-limited power to load; requires ≥0.1µF bypass + ≥10µF bulk cap (USB spec mandates 120µF) for stability. |
Key Features
| Feature | Design Value |
|---|---|
| Reverse Current Blocking & Limiting | Prevents backfeed into USB host during disconnect or VOUT > VIN; clamps reverse current to 0.32A max and shuts down at 65mV reverse voltage delta. |
| Built-in Soft-Start | 1.0ms typical output rise time eliminates inrush spikes into large capacitive loads (e.g., 120µF USB output), avoiding input rail collapse. |
| Integrated Discharge Path | 500Ω internal discharge resistor safely drains output capacitance when disabled or under UVLO-no external FET or resistor required. |
| ESD Robustness | 15kV IEC 61000-4-2 (with external capacitance), 2kV HBM, 1.5kV CDM-meets stringent USB port ESD requirements without added protection devices. |
| UL & Safety Certification | UL Recognized (E322375), IEC 62368-1 CB certified-enables direct use in end-product safety approvals without additional isolation or testing overhead. |
Applications
| USB Hub Power Management | Laptop Docking Station Rail Protection |
|---|---|
|
Use Scenario: Distributing 5V power across four downstream USB 3.x ports with individual overcurrent protection. IC Role / Device Role / Timing Role: High-side current-limited power switch with per-port FAULT reporting and reverse-current blocking. Use Value: Enables independent port disablement and fault logging without affecting other ports; meets USB-IF compliance for hot-plug robustness. |
Use Scenario: Providing isolated 5V rail to HDMI, Ethernet, and USB peripherals in a Thunderbolt dock. IC Role / Device Role / Timing Role: Programmable current-limited power switch with soft-start and thermal foldback. Use Value: Prevents input rail droop during simultaneous peripheral insertion; 3.1A rating supports multi-function dock peak loads. |
| Residential Gateway PoE+ Auxiliary Rail | Set-Top Box USB Peripheral Port |
|
Use Scenario: Delivering auxiliary 5V power to USB storage or Zigbee modules in a cable modem/router with PoE+ input. IC Role / Device Role / Timing Role: Protected high-side switch with UVLO and reverse-voltage blocking for mixed-power-source environments. Use Value: Blocks backfeed from USB peripherals into PoE-powered system during brownout; 7ms FAULT blanking avoids false trips on load transients. |
Use Scenario: Powering external USB HDDs or streaming sticks in consumer STB designs with strict BOM cost targets. IC Role / Device Role / Timing Role: Cost-optimized, single-chip current-limit switch replacing discrete MOSFET + sense + protection IC solutions. Use Value: Reduces component count by 4+ parts; TSOT26 footprint saves >3mm² PCB area vs. SO-8 alternatives while maintaining 3.1A capability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-side adjustable current-limit switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AP22655WU-7 | Identical specs except active-high EN polarity; same ILIM programming, RDS(ON), FAULT behavior, and protection features. | Used where host MCU GPIO defaults to high-state or requires synchronous enable with other active-high peripherals. | Select AP22655WU-7 only if system-level enable logic is active-high; otherwise AP22654WU-7 provides direct compatibility with standard reset-active-low architectures. |
| TCK107AG,LF | Lower max current (2.5A), fixed 1.5A current limit (no ILIM pin), no reverse-current limiting, 10µs OCP response. | Suitable for cost-sensitive, non-USB applications where programmability and reverse protection are not required. | Choose TCK107AG only for simple 2.5A-rated rails without USB compliance needs; AP22654WU-7 offers superior protection granularity and design flexibility. |
Compared with AP22655WU-7, AP22654WU-7 provides identical protection and current-setting capability but simplifies interface to active-low control systems; versus TCK107AG, it adds programmable current limiting, reverse-current blocking, and faster fault response-critical for USB and hot-swap reliability.
Availability
AP22654WU-7 is available at Aetrix Electronics and suitable for notebook PCs, USB hubs, and residential gateways requiring stable component supply, long-term lifecycle support, and RoHS-compliant green packaging.
Supply support for AP22654WU-7 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 high-reliability power management, signal integrity, and protection solutions for computing, industrial, and consumer markets.
The AP22654/AP22655 product line was designed specifically for USB-compliant hot-swap power distribution-delivering precision current limiting, reverse-current blocking, and integrated fault reporting in ultra-compact TSOT26 packages.
FAQ
What is the minimum recommended ILIM resistor value for AP22654WU-7?
The datasheet specifies a minimum RLIM of 1.91kΩ (1% tolerance) to achieve a maximum current-limit threshold of 3.56A. Using a lower resistance risks exceeding absolute maximum ratings, degrading current-limit accuracy, and triggering thermal shutdown under sustained load. Always verify layout parasitics and temperature drift when operating near this boundary.
Does AP22654WU-7 require external components for basic operation?
Yes: a 0.1µF ceramic bypass capacitor between IN and GND, ≥10µF bulk output capacitor (120µF for USB), and an ILIM resistor are mandatory. The FAULT pin requires a pull-up resistor (typically 10kΩ) to host logic supply. No external FET, sense resistor, or discharge circuit is needed-the IC integrates all core protection functions.
How does the 7ms FAULT deglitch function interact with short-circuit recovery?
The 7ms deglitch applies to both assertion and deassertion of the FAULT pin. After a short-circuit event ends, FAULT remains low for 7ms before releasing-preventing premature re-enable attempts. This ensures the load has fully cleared and thermal energy has dissipated, avoiding oscillatory tripping during marginal faults.
Can AP22654WU-7 be used in automotive applications?
No-the standard AP22654WU-7 is rated for -40°C to +85°C ambient and is not AEC-Q200 qualified. Diodes offers automotive-grade variants (AP22654Q/AP22655Q) with extended temperature range (-40°C to +125°C), enhanced ESD, and PPAP documentation-these must be specified separately for automotive use.
AP22654WU-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- SOT-23-6 Thin, TSOT-23-6
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Switch Type:
- General Purpose
- Number of Outputs:
- 1
- Ratio - Input:Output:
- 1:1
- Output Configuration:
- High Side
- Output Type:
- P-Channel
- Interface:
- On/Off
- Voltage - Load:
- 3V ~ 5.5V
- Voltage - Supply (Vcc/Vdd):
- Not Required
- Current - Output (Max):
- 3.14A
- Rds On (Typ):
- 50mOhm
- Input Type:
- Non-Inverting
- Features:
- Load Discharge, Slew Rate Controlled, Status Flag
- Fault Protection:
- Current Limiting (Fixed), Over Temperature, Reverse Current, Short Circuit, UVLO
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TSOT-26 (Type A1)
AP22654WU-7 FAQ
1.How can I place an order for AP22654WU-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP22654WU-7 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 AP22654WU-7 reliable?
The price and inventory of AP22654WU-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP22654WU-7 is usually 5 days.
3.What payment methods are accepted for AP22654WU-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP22654WU-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP22654WU-7?
AP22654WU-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP22654WU-7 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 AP22654WU-7?
For technical support, including AP22654WU-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP22654WU-7 requirements.
6.How does Aetrix verify that AP22654WU-7 is sourced from the original manufacturer or authorized distributors?
All AP22654WU-7 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 AP22654WU-7 meets industry standards.
7.What is the process for return or replacement of AP22654WU-7?
All AP22654WU-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP22654WU-7, 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 AP22654WU-7 part is unused and in its original packaging.
Return procedure for AP22654WU-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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