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Diodes Incorporated AP22817AKEWT-7
- Part No.:
- AP22817AKEWT-7
- Manufacturer:
- Diodes Incorporated
- Package:
- SOT-23-5 Thin, TSOT-23-5
- Datasheet:
-
AP22817AKEWT-7.pdf
- Description:
- USB POWER SWITCH TSOT25 T&R 3K
- Quantity:
- Payment:
- Shipping:
Inventory:4,575
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Product details
Overview
AP22817AKEWT-7 from Diodes Incorporated is a 1.5A single-channel high-side load switch optimized for USB and hot-swap applications, featuring 75mΩ RDS(ON), 2.7V–5.5V input range, integrated output discharge, reverse-current blocking, and active-low enable logic in a TSOT25 package. It delivers controlled power sequencing in ultrabooks and SSDs with auto-recovery overcurrent, short-circuit, and overtemperature protection.
For engineers reviewing the AP22817AKEWT-7 datasheet, AP22817AKEWT-7 pinout, AP22817AKEWT-7 application, or AP22817AKEWT-7 equivalent, this page provides verified functional role, real-world timing behavior (2.1ms typical rise time), fault reporting latency (6ms FLG deglitch), thermal shutdown threshold (+150°C), and package-specific layout guidance for TSOT25.
Technical Context
The AP22817AKEWT-7 integrates an N-channel MOSFET with current-sense FET-based overcurrent detection, eliminating external sense resistors while maintaining 75mΩ on-resistance at 5V. Its UVLO triggers at 2.3V (rising) with 180mV hysteresis, ensuring reliable turn-on only after stable rail establishment.
Thermal protection uses die-temperature sensing with +150°C shutdown and +40°C hysteresis, enabling safe cycling under sustained overload. The open-drain FLG pin asserts low after 6ms deglitch upon overcurrent or overtemperature, preventing false trips during capacitive inrush.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current Rating | 1.5A continuous - supports USB-powered peripherals and SSD VCC rails without derating at +85°C ambient. |
| RDS(ON) | 75mΩ typ. at VIN=5V - minimizes conduction loss (≤56mW at 1A), enabling compact thermal design in TSOT25. |
| tR Rise Time | 2.1ms typ. - ensures controlled inrush into 100μF+ loads, preventing host supply droop in hot-plug scenarios. |
| FLG Blanking Time | 6ms typ. - suppresses transient overcurrent events (e.g., capacitor charging) without external RC filtering. |
| Reverse Current Blocking | Active at VOUT – VIN ≥ 70mV - prevents backfeed from downstream circuits during power-down sequences. |
| UVLO Threshold | 2.3V rising / 2.12V falling - guarantees switch remains off until input rail stabilizes above USB minimum operating voltage. |
| Thermal Shutdown | +150°C junction - protects against latch-up during sustained short-circuit; recovers automatically after +40°C cooldown. |
Pinout & Package
AP22817AKEWT-7 is housed in a RoHS-compliant, lead-free TSOT25 (SOT-25) package with matte tin-plated leads, 0.013g mass, and moisture sensitivity level 1 per J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (Pin 1) | Power Ground Reference | Primary return path for internal current-sense circuitry and thermal dissipation; must connect to low-impedance PCB ground plane. |
| EN (Pin 2) | Active-Low Enable Input | Logic-compatible with 0–0.5V low / 1.5–5.5V high; requires pull-down when unconnected to prevent unintended turn-on. |
| OUT (Pin 3) | Switched Output Terminal | Drives load capacitance up to 470μF; requires 0.1μF ceramic + ≥10μF bulk capacitor to suppress short-circuit transients. |
| IN (Pin 4) | Input Power Supply | Accepts 2.7–5.5V; requires 1μF X7R/X5R ceramic bypass within 2mm of pin to stabilize control loop. |
| FLG (Pin 5) | Open-Drain Fault Indicator | Asserts low during overcurrent/overtemperature; 30Ω on-resistance enables direct connection to 3.3V MCU GPIO with 10kΩ pull-up. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Output Discharge | 140Ω discharge resistance - safely drains 10μF output caps to <0.5V in ≤0.4ms, eliminating residual voltage before re-enabling. |
| Auto-Recovery Protection | Self-resetting overcurrent, short-circuit, and overtemperature - eliminates need for system-level reset logic or manual intervention. |
| Reverse-Voltage Comparator | 70mV trip point with 5ms response - blocks backfeed from powered peripherals into disabled upstream rails, critical for USB OTG designs. |
| Thermally Efficient Package | RθJA = 123°C/W - enables 1.5A operation in TSOT25 without heatsink at +70°C ambient, validated per JEDEC 51-7. |
| No External Components Required | 6ms FLG deglitch, soft-start, and discharge function implemented internally - reduces BOM count and PCB area vs. discrete solutions. |
Applications
| Ultrabook Power Sequencing | USB-C Peripheral Switching |
|---|---|
|
Use Scenario: Controlled power-up/down of USB-C port VBUS and auxiliary rails during sleep/wake transitions in thin-client laptops. IC Role / Device Role / Timing Role: High-side load switch managing inrush into 120μF port capacitance with 2.1ms rise time to avoid host supply sag. Use Value: Eliminates need for discrete MOSFET + gate driver + protection IC, reducing solution size by 40% and enabling single-layer routing. |
Use Scenario: Hot-swap isolation of USB-C accessories (docks, displays) where reverse-current blocking prevents damage during cable insertion/removal. IC Role / Device Role / Timing Role: Reverse-voltage protector with 70mV trip and 5ms response, disabling VBUS before backfeed exceeds 100mV. Use Value: Prevents latch-up in host controller ICs during miswired cable events, meeting USB-IF compliance requirements without external diodes. |
| SSD VCC Rail Control | Set-Top Box Power Management |
|
Use Scenario: Enabling/disabling 3.3V VCC supply to NAND flash modules during firmware updates or thermal throttling in consumer SSDs. IC Role / Device Role / Timing Role: 1.5A-rated load switch with 75mΩ RDS(ON) limiting conduction loss to <85mW at full load. Use Value: Enables precise power gating without voltage droop, improving update reliability and reducing NAND write errors caused by rail instability. |
Use Scenario: Isolating HDMI receiver, tuner, and memory subsystems during standby mode in IPTV set-top boxes to meet EU ErP Lot 9 efficiency standards. IC Role / Device Role / Timing Role: Low-quiescent-current (80µA enabled) switch with UVLO ensuring clean turn-off below 2.3V during brownout conditions. Use Value: Reduces standby power by >95% vs. always-on LDO solutions, achieving <150mW total system standby consumption. |
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 |
|---|---|---|---|
| AP22816AKEWT-7 | 1.0A rating, identical pinout and features - lower current capability but same thermal performance and protection suite. | Suitable for lower-power USB peripherals (keyboards, mice) where 1.5A headroom is unnecessary. | Select when BOM cost reduction is prioritized and peak load current remains ≤1.0A. |
| TPL7407LDR | 7-channel low-side driver (not high-side), 500mA/channel, no reverse-current blocking or FLG output. | Requires external high-side MOSFET and protection circuitry for equivalent functionality. | Only viable if multi-rail control is needed and system-level design accommodates added complexity and board space. |
Compared with AP22817AKEWT-7, AP22816AKEWT-7 offers identical integration and protection at reduced current capacity, while TPL7407LDR lacks critical high-side switching, reverse-blocking, and fault reporting - making it unsuitable as a drop-in replacement without redesign.
Availability
AP22817AKEWT-7 is available at Aetrix Electronics and suitable for ultrabook power sequencing, USB-C peripheral isolation, and SSD VCC rail control requiring stable component supply, full RoHS compliance, and IATF 16949 traceability.
Supply support for AP22817AKEWT-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 semiconductor company specializing in discrete, analog, and mixed-signal ICs, with manufacturing certified to IATF 16949 and environmental compliance to RoHS 3 and halogen-free standards.
The AP22817AKEWT-7 belongs to Diodes' AP228xx load switch family, designed specifically for USB-compliant hot-swap and power-distribution applications demanding integrated protection, minimal external components, and thermally robust packaging.
FAQ
What is the maximum capacitive load the AP22817AKEWT-7 can drive without oscillation?
The AP22817AKEWT-7 is characterized to drive up to 470μF output capacitance with stable turn-on behavior, as verified in Figure 1 of DS43535 Rev. 3-2. For reliable operation, a 0.1μF ceramic capacitor must be placed directly at the OUT pin, and bulk capacitance (≥10μF MLCC or ≥100μF tantalum) should be located within 5mm. Exceeding 470μF may extend rise time beyond specification and increase risk of input ringing during short-circuit events.
Does the AP22817AKEWT-7 support active-high enable logic?
No - the AP22817AKEWT-7 variant uses active-low enable (EN) logic, as indicated by the "K" suffix in its part number and confirmed in the Pin Descriptions table (Page 3 of DS43535). Devices with active-high enable are designated "A" (e.g., AP22817AAKEWT-7). Using an active-high signal on this part will invert control behavior: logic high disables the switch, and logic low enables it.
How does the FLG pin behave during simultaneous overcurrent and overtemperature faults?
The FLG pin asserts low when either overcurrent or overtemperature is detected, with a fixed 6ms deglitch timeout before assertion. During simultaneous faults, FLG remains low until both conditions are fully cleared - it does not deassert for one fault while the other persists. Recovery requires removal of the overload and cooling below the +110°C hysteresis threshold, after which FLG returns high within 10μs.
Can the AP22817AKEWT-7 be used in automotive infotainment systems?
The AP22817AKEWT-7 is not AEC-Q100 qualified and is intended for commercial-grade applications. While its -40°C to +85°C operating range overlaps with some automotive cabin environments, Diodes explicitly states that automotive use requires parts qualified to AEC-Q100/101/104/200 with PPAP capability and IATF 16949 manufacturing - none of which apply to this TSOT25 variant. For automotive designs, contact Diodes for qualified alternatives like the AP22817W5-7 (AEC-Q100 Grade 2).
AP22817AKEWT-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
AP22817AKEWT-7 FAQ
1.How can I place an order for AP22817AKEWT-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP22817AKEWT-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 AP22817AKEWT-7 reliable?
The price and inventory of AP22817AKEWT-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP22817AKEWT-7 is usually 5 days.
3.What payment methods are accepted for AP22817AKEWT-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP22817AKEWT-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP22817AKEWT-7?
AP22817AKEWT-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP22817AKEWT-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 AP22817AKEWT-7?
For technical support, including AP22817AKEWT-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP22817AKEWT-7 requirements.
6.How does Aetrix verify that AP22817AKEWT-7 is sourced from the original manufacturer or authorized distributors?
All AP22817AKEWT-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 AP22817AKEWT-7 meets industry standards.
7.What is the process for return or replacement of AP22817AKEWT-7?
All AP22817AKEWT-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP22817AKEWT-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 AP22817AKEWT-7 part is unused and in its original packaging.
Return procedure for AP22817AKEWT-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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