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Diodes Incorporated AP22816BKWT-7
- Part No.:
- AP22816BKWT-7
- Manufacturer:
- Diodes Incorporated
- Package:
- SOT-23-5 Thin, TSOT-23-5
- Datasheet:
-
AP22816BKWT-7.pdf
- Description:
- USB POWER SWITCH TSOT25 T&R 3K
- Quantity:
- Payment:
- Shipping:
Inventory:2,108
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Product details
Overview
AP22816BKWT-7 from Diodes Incorporated is a single-channel, 1.0A-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-low enable, integrated output discharge, reverse-current blocking, and auto-recovering overcurrent/overtemperature protection. It delivers controlled power sequencing in ultrabook and SSD power rails.
For engineers reviewing the AP22816BKWT-7 datasheet, AP22816BKWT-7 pinout, AP22816BKWT-7 application, or AP22816BKWT-7 equivalent, key selection criteria include current rating (1.0A), TSOT25 package footprint, active-low EN logic, 6ms FLG deglitch timing, and compliance with USB voltage and transient requirements.
Technical Context
The AP22816BKWT-7 implements a thermally robust N-channel MOSFET high-side switch with bi-directional current sensing and UVLO (2.3V typical turn-on, 180mV hysteresis). Its internal discharge FET activates on disable to sink up to 1mA through a 140–200Ω path, ensuring rapid VOUT decay below 0.5V in <0.4ms.
Protection logic integrates three independent fault monitors: overcurrent (1.1–2.1A limit depending on VOUT), short-circuit (0.5A clamp), and thermal shutdown at +150°C with +40°C hysteresis. The open-drain FLG pin asserts low after 6ms blanking time and remains latched until both overcurrent and overtemperature faults clear.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current Rating | 1.0A continuous - supports USB downstream port and SSD auxiliary rail loads without derating at +85°C ambient. |
| RDS(ON) | 75mΩ typ. at 5VIN, 1A - limits I²R loss to ≤75mW, enabling use in space-constrained TSOT25 without forced airflow. |
| 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 | Active-low EN - interfaces directly with 3.3V GPIOs without level-shifting; requires pull-down when unconnected. |
| FLG Blanking Time | 6ms typ. - suppresses false fault reporting during inrush into 100μF+ capacitive loads, eliminating need for external RC filters. |
| Discharge Resistance | 140–200Ω - discharges 10μF output cap from 5V to <0.5V in ≤0.4ms, preventing backfeed during hot-plug removal. |
| UVLO Threshold | 2.3V typ. rising, 2.12V falling - ensures clean turn-on only after stable rail establishment and prevents brownout-induced oscillation. |
Pinout & Package
AP22816BKWT-7 is housed in a RoHS-compliant, Green, matte tin-plated TSOT25 (SOT-25) package (2.9mm × 1.6mm × 0.8mm), rated Moisture Sensitivity Level 1 per J-STD-020.
| 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 device. |
| 2 EN | Active-low enable input | Drives internal gate driver; logic low (≤0.5V) disables switch and activates discharge; floating not allowed. |
| 3 OUT | Switched output terminal | Connects to load; requires 0.1μF ceramic + ≥10μF bulk capacitor to GND for stability and short-circuit immunity. |
| 4 IN | Input supply terminal | Accepts 2.7–5.5V; requires 1μF X7R/X5R ceramic bypass close to pin to suppress high-frequency noise and ringing. |
| 5 FLG | Open-drain fault flag | Active-low signal asserted after 6ms deglitch on overcurrent/overtemperature; requires external pull-up (typically 10kΩ to VIN). |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Output Discharge | 140–200Ω internal discharge path reduces VOUT to <0.5V in ≤0.4ms, eliminating need for external discharge MOSFET or resistor. |
| Reverse-Current Blocking | Turns off internal MOSFET if VOUT exceeds VIN by >35–105mV, preventing backfeed from downstream supplies or batteries. |
| Auto-Recovery Protection | Overcurrent, short-circuit, and overtemperature faults self-clear once condition resolves - no manual reset required. |
| Soft-Start Rise Time | 0.6ms typical output rise time - limits inrush current into large capacitive loads (e.g., 120μF SSD rails) without external RC. |
| Thermal Shutdown Hysteresis | +40°C hysteresis between trip (+150°C) and recovery (~+110°C) - prevents thermal cycling instability under sustained overload. |
Applications
| USB 3.x Downstream Port | Ultrabook Power Sequencing |
|---|---|
Use Scenario: Hot-plug detection and power control for USB Type-A ports delivering 5V/900mA to peripherals. IC Role / Device Role / Timing Role: High-side load switch managing VBUS enable/disable with reverse-current blocking and fast fault response. Use Value: Prevents backfeed from connected peripherals during sleep/wake transitions and eliminates need for discrete discharge circuitry. |
Use Scenario: Controlled power-up of SSD and display subsystems in thin-and-light notebooks with strict sequencing windows. IC Role / Device Role / Timing Role: Single-channel distribution switch providing soft-started, monitored 3.3V/1.0A rails with fault-flag feedback to EC. Use Value: Ensures reliable power ramp with <0.6ms rise time and 6ms fault blanking, avoiding false EC resets during capacitor charging. |
| Solid-State Drive (SSD) Auxiliary Rail | Set-Top Box USB Hub Power |
Use Scenario: Isolating 3.3V auxiliary power to NVMe controller logic during hot-swap or firmware update. IC Role / Device Role / Timing Role: Load switch with integrated discharge and reverse-voltage protection for isolated domain control. Use Value: Discharges residual 3.3V in <0.4ms upon disable, meeting PCIe hot-plug safety requirements and preventing latch-up. |
Use Scenario: Managing power to multi-port USB hubs in consumer STB platforms with shared 5V rail and variable load profiles. IC Role / Device Role / Timing Role: Current-limited, auto-recovering switch protecting upstream 5V source from hub overloads and shorts. Use Value: Sustains 1.0A continuous load while clamping short-circuit current to 0.5A and asserting FLG within 6ms - no host intervention needed. |
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 |
|---|---|---|---|
| AP22816AKWT-7 | Active-high enable (EN), identical RDS(ON), current rating, and protection features. | Requires high-true GPIO control instead of low-true; same PCB layout but different MCU pin assignment. | Select when system control logic uses active-high signaling and no level translation is desired. |
| TPL7407LDR | 7-channel low-side driver (not high-side); 500mA per channel; no integrated discharge or reverse-blocking. | Designed for LED/relay driving, not USB power switching; lacks fault flag, UVLO, and hot-swap optimization. | Not functionally equivalent; only consider for non-critical, low-current, low-side switching where protection is externally managed. |
Compared with AP22816BKWT-7, the AP22816AKWT-7 offers identical performance with inverted enable polarity - ideal for systems with high-true control buses - while the TPL7407LDR is a fundamentally different architecture (low-side, multi-channel, no protection) unsuitable as a drop-in replacement for USB load switching.
Availability
AP22816BKWT-7 is available at Aetrix Electronics and suitable for USB 3.x port management, ultrabook power sequencing, and SSD auxiliary rail control requiring stable component supply across industrial temperature ranges (−40°C to +85°C) and long-term production continuity.
Supply support for AP22816BKWT-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-domain isolation in space-constrained portable electronics.
FAQ
What is the maximum capacitive load the AP22816BKWT-7 can safely drive?
The AP22816BKWT-7 is characterized to drive ≥120μF output capacitance with controlled inrush, as verified in Diodes' DS43535 Rev. 3 test data. For USB applications, ≥10μF MLCC plus ≥100μF electrolytic/tantalum is recommended. Exceeding 470μF may extend rise time beyond 3.5ms but does not impair protection functionality.
Does the FLG pin require an external pull-up resistor?
Yes - FLG is an open-drain output and must be pulled up to a valid logic voltage (e.g., VIN or system IOVDD) via an external resistor, typically 4.7kΩ–10kΩ. Without pull-up, FLG cannot assert a valid logic-low fault signal to the host controller.
Can AP22816BKWT-7 be used in automotive applications?
No - AP22816BKWT-7 is not AEC-Q100 qualified. Diodes offers automotive-grade variants (e.g., AP22816Q) with PPAP support, IATF 16949 manufacturing, and extended temperature validation. This part is rated for industrial −40°C to +85°C operation only.
How does the device handle reverse-voltage conditions?
When VOUT exceeds VIN by 35–105mV for ≥2–15ms, the internal comparator triggers MOSFET turn-off to block reverse current. Recovery occurs automatically once VOUT − VIN falls below the trip threshold, with no latch or manual reset required.
AP22816BKWT-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
AP22816BKWT-7 FAQ
1.How can I place an order for AP22816BKWT-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP22816BKWT-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 AP22816BKWT-7 reliable?
The price and inventory of AP22816BKWT-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP22816BKWT-7 is usually 5 days.
3.What payment methods are accepted for AP22816BKWT-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP22816BKWT-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP22816BKWT-7?
AP22816BKWT-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP22816BKWT-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 AP22816BKWT-7?
For technical support, including AP22816BKWT-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP22816BKWT-7 requirements.
6.How does Aetrix verify that AP22816BKWT-7 is sourced from the original manufacturer or authorized distributors?
All AP22816BKWT-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 AP22816BKWT-7 meets industry standards.
7.What is the process for return or replacement of AP22816BKWT-7?
All AP22816BKWT-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP22816BKWT-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 AP22816BKWT-7 part is unused and in its original packaging.
Return procedure for AP22816BKWT-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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