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Diodes Incorporated AP22816AKWT-7
- Part No.:
- AP22816AKWT-7
- Manufacturer:
- Diodes Incorporated
- Package:
- SOT-23-5 Thin, TSOT-23-5
- Datasheet:
-
AP22816AKWT-7.pdf
- Description:
- USB POWER SWITCH TSOT25 T&R 3K
- Quantity:
- Payment:
- Shipping:
Inventory:604
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Product details
Overview
AP22816AKWT-7 from Diodes Incorporated is a 1.0A single-channel high-side load switch IC optimized for USB power distribution and hot-swap applications. It features 75mΩ RDS(ON), 2.7V–5.5V input range, integrated output discharge, reverse-current blocking, and active-low enable logic in a TSOT25 package. Used in Ultrabook power sequencing to control VBUS delivery with controlled rise time and fault reporting.
For engineers reviewing the AP22816AKWT-7 datasheet, AP22816AKWT-7 pinout, AP22816AKWT-7 application, or AP22816AKWT-7 equivalent, key selection criteria include current rating (1.0A), UVLO threshold (2.3V typ.), FLG deglitch timing (6ms), thermal shutdown behavior (+150°C), and TSOT25 footprint compatibility with space-constrained USB ports.
Technical Context
The AP22816AKWT-7 implements a thermally protected N-channel MOSFET high-side switch with bi-directional current sensing and integrated discharge FET. Its overcurrent protection operates via internal sense-FET monitoring without external resistors, clamping output current at 1.5A typical under overload while maintaining regulated voltage droop.
It integrates undervoltage lockout (2.3V rising threshold, 180mV hysteresis), reverse-voltage detection (70mV trip point), and open-drain FLG output with 6ms blanking to suppress false triggers during capacitive inrush. The device uses soft-start with 2.1ms typical rise time (CL = 4.7µF, RLOAD = 10Ω) and supports hot-plug insertion with controlled turn-on.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.7V to 5.5V - supports full USB 2.0/3.0 bus voltage range with margin for ripple and drop. |
| RDS(ON) | 75mΩ max at 25°C - enables <100mV dropout at 1.0A, minimizing power loss and self-heating. |
| Output Current Rating | 1.0A continuous - matches USB downstream port power delivery requirements per USB-IF spec. |
| UVLO Threshold | 2.3V (rising), 180mV hysteresis - prevents erratic switching during brown-out or hot-insertion ramp-up. |
| FLG Blanking Time | 6ms typical - suppresses false fault reporting during capacitor charging transients in USB hot-swap. |
| Thermal Shutdown | +150°C with +40°C hysteresis - ensures safe cycling under sustained short-circuit without latch-off. |
| Reverse Current Blocking | Active at VOUT – VIN ≥ 70mV - prevents backfeed from powered peripherals into host supply rail. |
Pinout & Package
AP22816AKWT-7 is housed in a RoHS-compliant, lead-free TSOT25 (SOT-25) package with matte tin-plated leads solderable per MIL-STD-202 Method 208 (e3). Dimensions: 2.9mm × 1.6mm × 0.85mm, moisture sensitivity level 1.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Power ground reference for internal circuitry and thermal path; must be low-inductance connection to PCB ground plane. |
| 2 | EN | Active-high enable input - logic high ≥1.5V enables switch; tied low during power-up prevents unintended turn-on. |
| 3 | OUT | Switched output node - connects to load and 0.1µF + ≥10µF bulk capacitors; reverse-current blocking active when disabled. |
| 4 | IN | Input power rail - requires 1µF X7R/X5R ceramic bypass close to pin; supports up to 5.5V absolute max. |
| 5 | FLG | Open-drain fault flag - pulled low during overcurrent/overtemperature; 30Ω on-resistance enables direct MCU GPIO interface. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Output Discharge | 140Ω discharge resistance - fully discharges 1µF output cap in <0.4ms when disabled, eliminating residual voltage hazards. |
| Soft-Start Control | 2.1ms typical rise time - limits inrush current into heavy capacitive loads (e.g., 120µF SSD rails) to prevent input rail collapse. |
| Auto-Recovery Protection | Overcurrent, short-circuit, and overtemperature all feature automatic reset after fault removal - no manual reset required. |
| No External Components Required | 6ms FLG deglitch, UVLO, and reverse-voltage detection implemented internally - eliminates need for RC filters or external comparators. |
| ESD Robustness | 2kV HBM, 500V CDM - meets IEC61000-4-2 system-level surge immunity requirements for consumer USB ports. |
Applications
| USB 3.0 Port Power Switching | Ultrabook Power Sequencing |
|---|---|
Use Scenario: Controlling VBUS delivery to downstream USB 3.0 peripherals during enumeration and hot-plug events. IC Role / Device Role: High-side load switch enabling/disabling 5V power rail with inrush limiting and fault reporting. Use Value: Prevents host controller damage from shorted cables via auto-recovering 1.5A current limit and 6ms FLG blanking. | Use Scenario: Staged power-up of multiple subsystems (e.g., display, storage, I/O) in thin-client notebooks. IC Role / Device Role: Independent rail controller for 5V auxiliary supplies, coordinated via GPIO-enable signals. Use Value: Ensures clean power sequencing with <2.1ms controlled rise time and UVLO hold-off until stable input. |
| SSD Power Enable | Set-Top Box USB Hub Management |
Use Scenario: Enabling 5V power to M.2 SATA or NVMe SSD modules only after host initialization completes. IC Role / Device Role: Load switch isolating SSD power domain from main SoC rail to reduce standby leakage. Use Value: Reverse-current blocking prevents SSD from back-powering host during sleep states, improving energy efficiency. | Use Scenario: Managing individual USB port power in multi-port STB hubs to comply with USB suspend/resume timing. IC Role / Device Role: Per-port power gate with FLG feedback to SoC for dynamic port disable during overcurrent. Use Value: Enables firmware-controlled port disable without hardware redesign; FLG signal directly interfaces to ARM Cortex-M GPIO. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-side load switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS22916BYFPR | 1.5A rating, 60mΩ RDS(ON), active-high EN only, no reverse-voltage protection | Lacks reverse-current blocking and 70mV reverse-voltage comparator - unsuitable where backfeed prevention is mandatory | Select when higher current and lower RDS(ON) are prioritized over reverse protection in non-backfeed systems. |
| RT9711CGQW | 1.0A rating, 90mΩ RDS(ON), 2.5V–5.5V range, no FLG deglitch or thermal hysteresis spec | Missing 6ms FLG blanking and documented thermal recovery hysteresis - increases risk of false fault interrupts in noisy environments | Choose only if cost sensitivity outweighs reliability requirements in benign thermal environments. |
Compared with TPS22916BYFPR and RT9711CGQW, AP22816AKWT-7 uniquely combines USB-optimized 1.0A current rating, reverse-voltage protection, guaranteed 6ms FLG blanking, and +40°C thermal hysteresis - making it the most robust choice for consumer USB hot-swap where backfeed and false fault reporting must be eliminated.
Availability
AP22816AKWT-7 is available at Aetrix Electronics and suitable for USB 3.0 port management, Ultrabook power sequencing, and SSD enable applications requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for AP22816AKWT-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-efficiency power management, signal integrity, and protection solutions for consumer, computing, and industrial markets.
The AP22816/17/18 family belongs to Diodes' load switch product line, designed specifically for USB-compliant hot-swap power distribution with integrated protection, soft-start, and fault reporting in ultra-small packages.
FAQ
What is the maximum capacitive load the AP22816AKWT-7 can drive without oscillation or failure?
The AP22816AKWT-7 is characterized to drive ≥120μF output capacitance with stable turn-on (2.1ms rise time) and no ringing when paired with recommended 0.1μF + 10μF local bypassing. Diodes' DS43535 shows clean transient response up to 470μF in test conditions, but design best practice caps total output capacitance at 220μF for reliable USB port compliance and thermal margin.
Does AP22816AKWT-7 support active-low enable, or is it active-high only?
AP22816AKWT-7 is the active-high variant (suffix 'A') - EN pin asserts high (≥1.5V) to enable the switch. The datasheet confirms AP22816A/17A/18A use active-high logic; active-low versions (e.g., AP22816B) have distinct part numbers and pinouts. This part does not support active-low operation.
How does the FLG pin behave during simultaneous overcurrent and overtemperature faults?
When both overcurrent and overtemperature faults occur, the FLG pin goes low after the 6ms deglitch timeout and remains low until both fault conditions are fully cleared. The FLG does not distinguish between fault types - it is a combined open-drain indicator that stays asserted until junction temperature falls below +110°C (150°C − 40°C hysteresis) AND load current drops below the 1.1A trip threshold.
Can AP22816AKWT-7 be used in automotive infotainment USB ports?
AP22816AKWT-7 is not AEC-Q100 qualified and lacks automotive-grade qualification documentation. While its -40°C to +85°C operating range meets ambient requirements, Diodes explicitly states automotive use requires contacting their sales team for PPAP-capable, IATF 16949-manufactured variants - meaning this specific TSOT25 variant is intended for commercial computing and consumer electronics only.
AP22816AKWT-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- SOT-23-5 Thin, TSOT-23-5
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Switch Type:
- USB Switch
- Number of Outputs:
- 1
- Ratio - Input:Output:
- 1:1
- Output Configuration:
- High Side
- Output Type:
- P-Channel
- Interface:
- On/Off
- Voltage - Load:
- 2.7V ~ 5.5V
- Voltage - Supply (Vcc/Vdd):
- Not Required
- Current - Output (Max):
- 1A
- Rds On (Typ):
- 75mOhm
- Input Type:
- Non-Inverting
- Features:
- Load Discharge, Status Flag
- Fault Protection:
- Current Limiting (Fixed), Over Temperature, Reverse Current, Short Circuit, UVLO
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TSOT-23-5
AP22816AKWT-7 FAQ
1.How can I place an order for AP22816AKWT-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP22816AKWT-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 AP22816AKWT-7 reliable?
The price and inventory of AP22816AKWT-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP22816AKWT-7 is usually 5 days.
3.What payment methods are accepted for AP22816AKWT-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP22816AKWT-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP22816AKWT-7?
AP22816AKWT-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP22816AKWT-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 AP22816AKWT-7?
For technical support, including AP22816AKWT-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP22816AKWT-7 requirements.
6.How does Aetrix verify that AP22816AKWT-7 is sourced from the original manufacturer or authorized distributors?
All AP22816AKWT-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 AP22816AKWT-7 meets industry standards.
7.What is the process for return or replacement of AP22816AKWT-7?
All AP22816AKWT-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP22816AKWT-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 AP22816AKWT-7 part is unused and in its original packaging.
Return procedure for AP22816AKWT-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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