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Diodes Incorporated AP22817AKCWT-7
- Part No.:
- AP22817AKCWT-7
- Manufacturer:
- Diodes Incorporated
- Package:
- SOT-23-5 Thin, TSOT-23-5
- Datasheet:
-
AP22817AKCWT-7.pdf
- Description:
- USB POWER SWITCH TSOT25 T&R 3K
- Quantity:
- Payment:
- Shipping:
Inventory:1,174
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Product details
Overview
AP22817AKCWT-7 from Diodes Incorporated is a single-channel, 1.5A-rated, integrated high-side load switch optimized for USB and hot-swap applications. It features 75mΩ RDS(ON), 2.7–5.5V input range, active-high enable, integrated output discharge, reverse-current blocking, and overcurrent/overtemperature/short-circuit protection with auto-recovery. Used in notebook power sequencing and SSD power rail control.
For engineers reviewing the AP22817AKCWT-7 datasheet, AP22817AKCWT-7 pinout, AP22817AKCWT-7 application, or AP22817AKCWT-7 equivalent, key selection criteria include current rating (1.5A), soft-start rise time (2.1ms typ.), FLG deglitch timing (6ms), UVLO threshold (2.3V typ.), and TSOT25 package thermal resistance (123°C/W).
Technical Context
The AP22817AKCWT-7 implements a thermally protected N-channel MOSFET high-side switch with bi-directional current sensing and integrated discharge FET. Its UVLO circuit activates at 2.3V (rising) with 180mV hysteresis, ensuring stable turn-on during supply ramp-up.
Overcurrent detection uses internal sense-FET architecture-no external resistor-triggering current limiting at 2.2A (typ.) and short-circuit clamping at 0.5A (typ.). The open-drain FLG pin asserts low after 6ms deglitch timeout for both overcurrent and overtemperature faults.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current Rating | 1.5A continuous - supports USB downstream port and SSD VCC power rail switching. |
| RDS(ON) | 75mΩ max @ 25°C - minimizes conduction loss and self-heating under full load. |
| Input Voltage Range | 2.7V to 5.5V - compatible with 3.3V and 5V system rails, including USB 2.0/3.0 bus voltage. |
| tR (Rise Time) | 2.1ms typical @ VIN=3.3V, CL=4.7μF - enables controlled inrush limiting for 100μF+ output caps. |
| UVLO Threshold | 2.3V (rising), 2.12V (falling) - prevents erratic switching during brown-out or hot-plug insertion. |
| FLG Blanking Time | 6ms typical - suppresses false fault reporting during capacitive load turn-on transients. |
| Discharge Resistance | 140–200Ω - actively discharges output capacitance to <0.5V within 0.4ms when disabled. |
Pinout & Package
AP22817AKCWT-7 is housed in a RoHS-compliant, lead-free TSOT25 (SOT-25) package - 2.9mm × 1.6mm × 0.8mm, moisture sensitivity level 1, matte tin-plated leads.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Power ground reference for internal circuitry and thermal path; must be connected to low-impedance PCB ground plane. |
| 2 | EN | Active-high enable input - logic high ≥1.5V enables switch; floating not allowed; internal pull-down absent. |
| 3 | OUT | Switched output node - connects to load capacitor (≥10μF) and bypass cap (0.1μF); reverse-current blocking active. |
| 4 | IN | Input power rail - requires 1μF ceramic bypass cap near pin; supports 2.7–5.5V with UVLO and reverse-voltage protection. |
| 5 | FLG | Open-drain fault flag - pulls low during overcurrent/overtemperature events after 6ms deglitch; requires external pull-up. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Output Discharge | 140–200Ω on-chip discharge path ensures rapid, controlled VOUT collapse (<0.4ms to <0.5V) when disabled - eliminates floating outputs and improves system reset integrity. |
| Reverse-Voltage Protection | Triggers MOSFET turn-off when VOUT exceeds VIN by ≥35mV (min), preventing backfeed into upstream supplies - critical for multi-rail hot-swap systems. |
| Auto-Recovering Protections | Overcurrent, short-circuit, and overtemperature faults all recover automatically once fault condition clears - no manual reset or power cycle required. |
| No External Components Required | 6ms FLG deglitch, soft-start, UVLO, and discharge function are fully internal - eliminates BOM cost and layout area vs. discrete solutions. |
| Thermal Robustness | RθJA = 123°C/W (TSOT25) enables 1.5A operation up to +85°C ambient without derating - validated per JEDEC 51-7 test board. |
Applications
| USB Power Delivery Port Control | Notebook Power Sequencing |
|---|---|
|
Use Scenario: Managing power to USB Type-A downstream ports in ultrabooks during sleep/wake transitions and hot-plug events. IC Role / Device Role / Timing Role: High-side load switch enabling/disabling 5V USB bus power with controlled inrush and reverse-current isolation. Use Value: Prevents bus voltage droop during plug-in, blocks backfeed from peripherals, and reports faults via FLG to EC firmware. |
Use Scenario: Staged activation of core voltage rails (e.g., SOC I/O, memory, display) during notebook boot and S3/S4 resume. IC Role / Device Role / Timing Role: Precision-controlled power switch with 2.1ms rise time and UVLO coordination across multiple rails. Use Value: Eliminates cross-rail contention, ensures clean power-up sequence, and avoids latch-up due to uncontrolled inrush. |
| SSD VCC Rail Switching | Set-Top Box Peripheral Power Management |
|
Use Scenario: Enabling/disabling 3.3V VCC supply to SATA or NVMe SSD modules in consumer storage enclosures. IC Role / Device Role / Timing Role: Load switch providing reverse-current blocking and fast fault response to protect host controller from SSD failures. Use Value: Isolates failed SSDs without disrupting main SoC power; FLG signal triggers firmware-level diagnostics and retry logic. |
Use Scenario: Independent power control of HDMI receivers, tuners, or USB peripherals in set-top boxes with dynamic feature activation. IC Role / Device Role / Timing Role: Low-RDS(ON) switch delivering 1.5A with thermal shutdown and auto-recovery during transient overloads. Use Value: Enables software-defined power gating, reduces standby leakage, and maintains system uptime during peripheral faults. |
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 |
|---|---|---|---|
| TPL7407LDR | 7-channel low-side driver (not high-side); 0.5A per channel; no UVLO or discharge; open-drain outputs. | Designed for LED/relay driving, not power rail switching - lacks reverse-current blocking and fault reporting. | Select only if driving resistive/inductive loads with separate high-side control; not suitable for USB or SSD power domains. |
| TPS22916BLYFPR | 1.5A high-side switch in 1.0mm × 1.5mm DSBGA; RDS(ON) = 44mΩ; FLG with 10ms blanking; no reverse-voltage protection. | Smaller footprint and lower RDS(ON), but lacks reverse-voltage comparator and has longer fault blanking - less robust in backfeed-prone systems. | Prefer for space-constrained designs where reverse-voltage risk is absent and faster switching is prioritized over fault immunity. |
Compared with TPL7407LDR and TPS22916BLYFPR, AP22817AKCWT-7 uniquely combines reverse-voltage protection, 6ms FLG deglitch, and integrated discharge in TSOT25 - making it optimal for USB and hot-swap applications where backfeed prevention and controlled turn-off are mandatory.
Availability
AP22817AKCWT-7 is available at Aetrix Electronics and suitable for notebook power sequencing, USB downstream port control, and SSD VCC rail switching requiring stable component supply, long-term lifecycle support, and automotive-grade traceability options.
Supply support for AP22817AKCWT-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 AP22816/17/18 family targets USB-compliant hot-swap and power-distribution applications, delivering integrated protection, precise current limiting, and compact packaging for space-constrained portable electronics.
FAQ
What is the maximum safe operating temperature for AP22817AKCWT-7?
The device operates safely up to +85°C ambient temperature under recommended conditions. Its thermal shutdown triggers at +150°C junction temperature, with +40°C hysteresis - allowing recovery at ~+110°C. Derating is not required below +85°C ambient when using the specified 2oz copper pad layout per JEDEC 51-7.
Does AP22817AKCWT-7 require external components for basic operation?
No external components are required for core functionality: EN logic control, FLG reporting, and fault protection are fully integrated. However, mandatory external capacitors include a 1μF ceramic at IN–GND, 0.1μF + ≥10μF at OUT–GND, and an external pull-up on FLG. These ensure stability, inrush control, and fault signaling integrity.
How does reverse-voltage protection work on AP22817AKCWT-7?
When VOUT exceeds VIN by ≥35mV for ≥2ms, the internal comparator disables the MOSFET within 5ms (typ.), blocking reverse current flow. Recovery occurs automatically when VOUT falls below VIN +15mV. This prevents backfeed into upstream supplies during hot-swap or multi-source configurations.
Can AP22817AKCWT-7 be used in automotive applications?
AP22817AKCWT-7 is not AEC-Q100 qualified. Diodes Incorporated offers automotive-grade variants (e.g., AP22817Wxx) with PPAP capability, IATF 16949 manufacturing, and extended temperature validation. For automotive use, contact Diodes directly for qualified part numbers and qualification documentation.
AP22817AKCWT-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):
- 1.5A
- 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
AP22817AKCWT-7 FAQ
1.How can I place an order for AP22817AKCWT-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP22817AKCWT-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 AP22817AKCWT-7 reliable?
The price and inventory of AP22817AKCWT-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP22817AKCWT-7 is usually 5 days.
3.What payment methods are accepted for AP22817AKCWT-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP22817AKCWT-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP22817AKCWT-7?
AP22817AKCWT-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP22817AKCWT-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 AP22817AKCWT-7?
For technical support, including AP22817AKCWT-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP22817AKCWT-7 requirements.
6.How does Aetrix verify that AP22817AKCWT-7 is sourced from the original manufacturer or authorized distributors?
All AP22817AKCWT-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 AP22817AKCWT-7 meets industry standards.
7.What is the process for return or replacement of AP22817AKCWT-7?
All AP22817AKCWT-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP22817AKCWT-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 AP22817AKCWT-7 part is unused and in its original packaging.
Return procedure for AP22817AKCWT-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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