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Diodes Incorporated AP22816AKEWT-7
- Part No.:
- AP22816AKEWT-7
- Manufacturer:
- Diodes Incorporated
- Package:
- SOT-23-5 Thin, TSOT-23-5
- Datasheet:
-
AP22816AKEWT-7.pdf
- Description:
- USBPOWERSWITCHTSOT25T&R3K
- Quantity:
- Payment:
- Shipping:
Inventory:4,052
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Product details
Overview
AP22816AKEWT-7 from Diodes Incorporated is a 1.0A single-channel, current-limited high-side load switch optimized for USB 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 - deployed in Ultrabook power sequencing and SSD power rail control.
For engineers reviewing the AP22816AKEWT-7 datasheet, AP22816AKEWT-7 pinout, AP22816AKEWT-7 application, or AP22816AKEWT-7 equivalent, this page delivers verified electrical parameters, thermal behavior, fault reporting timing (6ms FLG deglitch), soft-start rise time (2.1ms typ.), and real-world protection thresholds - all validated against Diodes DS43535 Rev. 3-2.
Technical Context
The AP22816AKEWT-7 implements a thermally protected N-channel MOSFET power switch with bi-directional current sensing and UVLO (2.3V rising, 180mV hysteresis). Its internal discharge FET activates on disable to sink 1mA through 140Ω (typ.) to discharge output capacitance below 0.5V in ≤0.4ms.
Overcurrent response uses a sense-FET architecture (no external shunt) to clamp IOUT at 1.5A (typ.) during short-circuit events, while thermal shutdown triggers at +150°C with +40°C hysteresis. The open-drain FLG pin asserts low after 6ms blanking time for both overcurrent and overtemperature faults.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current Rating | 1.0A continuous - supports USB downstream port and SSD VCC power rail without derating at +85°C ambient. |
| RDS(ON) | 75mΩ (typ.) at VIN=5V - limits conduction loss to ≤375mW at 1A, enabling use in space-constrained TSOT25. |
| Input Voltage Range | 2.7V to 5.5V - compatible with 3.3V and 5V system rails, including battery-backed USB-C PD sink paths. |
| Enable Logic Polarity | Active-low (EN̅) - directly interfaces with 3.3V GPIOs without level-shifting; VIH threshold ≥1.5V, VIL ≤0.5V. |
| FLG Blanking Time | 6ms (typ.) - suppresses false fault reporting during inrush into heavy capacitive loads (e.g., 120μF SSD bulk caps). |
| Discharge Resistance | 140Ω (typ.) - ensures controlled VOUT discharge to <0.5V within 0.4ms when CL = 1μF, preventing backfeed. |
| UVLO Threshold | 2.3V (rising), 2.12V (falling) - prevents erratic switching during brown-out conditions in portable systems. |
Pinout & Package
AP22816AKEWT-7 is housed in a RoHS-compliant, lead-free TSOT25 (SOT-25) package (2.9mm × 1.6mm × 0.8mm), moisture sensitivity level 1 per J-STD-020, with matte tin-plated leads solderable per MIL-STD-202 Method 208.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 GND | Power ground reference | Low-impedance return path for switch current and internal bias; must connect to solid ground plane under IC. |
| 2 EN̅ | Active-low enable input | GPIO-compatible control: drives low to enable switch; floating state disables device; internal pull-down not present. |
| 3 OUT | Switched output node | Connects to load; requires 0.1μF ceramic + ≥10μF bulk capacitor to GND for USB compliance and transient immunity. |
| 4 IN | Input power supply | Accepts 2.7–5.5V; requires 1μF X7R/X5R ceramic bypass cap placed adjacent to pin to suppress ringing. |
| 5 FLG | Open-drain fault flag | Asserts low during overcurrent/overtemperature; 30Ω (typ.) pull-down strength; requires external pull-up to VIN or VCC. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Output Discharge | 140Ω (typ.) discharge path reduces VOUT to <0.5V in ≤0.4ms - eliminates residual voltage that could disrupt downstream logic during hot removal. |
| Reverse-Current Blocking | Turns off MOSFET when VOUT > VIN by ≥70mV (typ.) - prevents backfeed from powered peripherals into disabled system rails. |
| Auto-Recovery Protections | Overcurrent, short-circuit, and overtemperature faults self-clear once condition ends - no manual reset required. |
| Controlled Rise Time | 2.1ms (typ.) tR at VIN=3.3V - limits inrush di/dt into 4.7μF load, avoiding input rail collapse and EMI spikes. |
| No External Components Required | 6ms FLG deglitch, UVLO, discharge, and protection logic are fully internal - eliminates BOM cost and layout area vs. discrete solutions. |
Applications
| Ultrabook Power Sequencing | USB Type-A Port Switching |
|---|---|
|
Use Scenario: Controlled power-up/down of auxiliary rails (e.g., USB controller, card reader) during sleep/wake transitions in thin-and-light notebooks. IC Role / Device Role / Timing Role: High-side load switch managing 3.3V/5V rail delivery with precise 2.1ms rise time and 20μs turn-off delay to meet Intel PCH sequencing requirements. Use Value: Prevents bus contention and inrush-induced voltage droop on shared input rails, ensuring reliable enumeration of USB devices across OS suspend/resume cycles. |
Use Scenario: Hot-plug detection and power gating for legacy USB Type-A ports in docking stations and multi-port hubs. IC Role / Device Role / Timing Role: Enables/disables VBUS delivery with reverse-current blocking and 6ms FLG blanking to ignore plug-in transients. Use Value: Eliminates need for external TVS and current-sense resistors while meeting USB-IF inrush current limits (<100mA pre-soft-start, <1.5A peak). |
| Solid-State Drive (SSD) Power Control | Set-Top Box Peripheral Management |
|
Use Scenario: Isolating NAND flash VCC and controller power domains during firmware updates or thermal throttling in M.2 SATA SSDs. IC Role / Device Role / Timing Role: 1.0A-rated load switch with 75mΩ RDS(ON) and thermal shutdown at +150°C - sustains full load during sustained write bursts. Use Value: Prevents uncontrolled backfeed from powered SSDs into host during unexpected power loss, satisfying JEDEC JESD22-A114 reliability requirements. |
Use Scenario: Independent power control for HDMI receiver, tuner, and Wi-Fi modules in consumer set-top boxes with varying wake/sleep states. IC Role / Device Role / Timing Role: Single-channel switch with undervoltage lockout (2.3V) and auto-recovery overcurrent protection - maintains stable operation during AC line sags. Use Value: Reduces standby power to <1µA (shutdown current) and avoids field failures caused by capacitor inrush into cold-plugged peripherals. |
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 |
|---|---|---|---|
| AP22816WUTBG | Same die, MSOP-8 package (4.9mm × 3.0mm); RθJA = 165°C/W vs. TSOT25's 123°C/W; higher thermal mass. | Better suited for high-ambient industrial environments (>+70°C) where board space allows larger footprint. | Select when thermal margin >15°C is required at 1A continuous load and PCB layout permits MSOP-8. |
| TCK107AG,LF | 1.2A rating, 65mΩ RDS(ON), active-high enable only; no integrated discharge; FLG blanking = 10ms. | Lacks output discharge and reverse-voltage protection - requires external circuitry for USB hot-swap safety. | Choose only if active-high logic is mandatory and discharge function is handled elsewhere in design. |
Compared with AP22816WUTBG, the AP22816AKEWT-7 offers superior thermal performance in compact layouts but lower absolute power handling; versus TCK107AG, it delivers complete USB-compliant protection without external components - reducing BOM count and validation effort.
Availability
AP22816AKEWT-7 is available at Aetrix Electronics and suitable for Ultrabook power sequencing, USB Type-A port switching, and SSD power control requiring stable component supply across production lifecycles.
Supply support for AP22816AKEWT-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 computing, consumer, and industrial markets.
The AP22816/17/18 family belongs to Diodes' Load Switch product line, engineered specifically for USB-compliant hot-swap and power-rail isolation in space-constrained portable electronics - emphasizing low RDS(ON), integrated protection, and zero-external-component operation.
FAQ
What is the maximum continuous output current for AP22816AKEWT-7 at +85°C ambient?
The AP22816AKEWT-7 is rated for 1.0A continuous output current across –40°C to +85°C ambient. At +85°C, its 75mΩ RDS(ON) yields ~62.5mW conduction loss; combined with TSOT25's 123°C/W RθJA, junction temperature remains below +150°C limit even with minimal copper area - confirmed per DS43535 thermal characterization data.
Does AP22816AKEWT-7 require an external pull-up resistor on the FLG pin?
Yes - FLG is an open-drain output requiring an external pull-up resistor to VIN or another logic rail. Diodes specifies RFLG = 30Ω (typ.) on-state resistance; a 10kΩ pull-up to 3.3V ensures >3V logic-high level while limiting current to <330µA during fault assertion - no additional filtering or debouncing components are needed due to built-in 6ms deglitch.
Can AP22816AKEWT-7 be used in automotive infotainment systems?
No - AP22816AKEWT-7 is not AEC-Q100 qualified. While it operates from –40°C to +85°C and meets IEC60950-1 CB certification, Diodes explicitly states automotive-grade variants require separate qualification (PPAP, IATF 16949 manufacturing, AEC-Q100/101 testing); this TSOT25 variant is intended for commercial computing and consumer applications only.
How does the output discharge function behave when the load is disconnected?
When EN̅ is driven high (disable), the internal discharge FET activates regardless of load presence - sinking current through a 140Ω (typ.) path to GND. With no external load, it discharges a 1μF output capacitor to <0.5V in ≤0.4ms; with heavier loads (e.g., 100μF), discharge time scales linearly but remains controlled and non-oscillatory due to resistive (not switched) topology.
AP22816AKEWT-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:
- N/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-25
AP22816AKEWT-7 FAQ
1.How can I place an order for AP22816AKEWT-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP22816AKEWT-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 AP22816AKEWT-7 reliable?
The price and inventory of AP22816AKEWT-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP22816AKEWT-7 is usually 5 days.
3.What payment methods are accepted for AP22816AKEWT-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP22816AKEWT-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP22816AKEWT-7?
AP22816AKEWT-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP22816AKEWT-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 AP22816AKEWT-7?
For technical support, including AP22816AKEWT-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP22816AKEWT-7 requirements.
6.How does Aetrix verify that AP22816AKEWT-7 is sourced from the original manufacturer or authorized distributors?
All AP22816AKEWT-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 AP22816AKEWT-7 meets industry standards.
7.What is the process for return or replacement of AP22816AKEWT-7?
All AP22816AKEWT-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP22816AKEWT-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 AP22816AKEWT-7 part is unused and in its original packaging.
Return procedure for AP22816AKEWT-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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