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Diodes Incorporated AP22817BKBWT-7
- Part No.:
- AP22817BKBWT-7
- Manufacturer:
- Diodes Incorporated
- Package:
- SOT-23-5 Thin, TSOT-23-5
- Datasheet:
-
AP22817BKBWT-7.pdf
- Description:
- USBPOWERSWITCHTSOT25T&R3K
- Quantity:
- Payment:
- Shipping:
Inventory:35,983
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Product details
Overview
AP22817BKBWT-7 from Diodes Incorporated is a 1.5A single-channel high-side load switch with active-low enable, 75mΩ RDS(ON), 2.7–5.5V input range, and integrated reverse-current blocking, overcurrent/overtemperature/short-circuit protection. It serves as a USB-compliant hot-swap power distribution switch in notebook and SSD power rails.
For engineers reviewing the AP22817BKBWT-7 datasheet, AP22817BKBWT-7 pinout, AP22817BKBWT-7 application, or AP22817BKBWT-7 equivalent, key selection criteria include active-low EN logic, 6ms FLG deglitch timing, soft-start rise time (2.1ms typ.), output discharge resistance (140–200Ω), and TSOT25 package thermal performance (RθJA = 123°C/W).
Technical Context
The AP22817BKBWT-7 implements a thermally robust N-channel MOSFET high-side switch with bi-directional current sensing for overcurrent detection and a dedicated thermal shutdown circuit triggering at +150°C with +40°C hysteresis. Its UVLO activates at 2.3V (rising) with 180mV hysteresis to prevent erratic turn-on during brownout conditions.
It integrates an open-drain FLG output with 6ms blanking time to suppress false fault reporting during capacitive inrush, and a controlled discharge path (140–200Ω) that actively sinks output capacitance when disabled-critical for USB hot-plug compliance and system-level power sequencing integrity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current Rating | 1.5A continuous - supports USB 3.x and SSD auxiliary rail loads without external current limiting. |
| RDS(ON) | 75mΩ max @ 5V, 1A - minimizes conduction loss (≤56mW at 1A), enabling use in thermally constrained TSOT25 footprint. |
| Input Voltage Range | 2.7V to 5.5V - compatible with 3.3V and 5V system rails, including battery-backed and USB PD-derived supplies. |
| Enable Polarity | Active-low (AP22817B) - interfaces directly with low-voltage GPIOs asserting '0' to enable power delivery. |
| FLG Blanking Time | 6ms typical - eliminates false overcurrent flags during 100μF+ output capacitor charging transients. |
| Discharge Resistance | 140–200Ω - ensures VOUT discharges to <0.5V within 0.4ms (CL = 1μF), preventing backfeed in multi-rail systems. |
| Reverse-Voltage Trip | 35–105mV Δ(VOUT−VIN) - blocks >35mV reverse bias before MOSFET turns off, protecting upstream sources. |
Pinout & Package
AP22817BKBWT-7 is housed in a RoHS-compliant, lead-free TSOT25 (SOT-25-5) package with matte tin-plated leads solderable per MIL-STD-202, Method 208 (e3). Thermal resistance is RθJA = 123°C/W on 1″×1″ FR-4 board with 2oz copper.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Power ground reference for internal control circuitry and thermal dissipation path. |
| 2 | FLG | Open-drain fault flag; pulls low after 6ms deglitch upon overcurrent/overtemperature event. |
| 3 | OUT | Switched output node; requires 0.1μF ceramic + ≥10μF bulk capacitor for USB stability. |
| 4 | IN | Input supply pin; must be bypassed with 1μF X7R/X5R ceramic close to IC. |
| 5 | EN | Active-low enable; logic low (≤0.5V) enables switch; must not float-tie to GND or controller GPIO. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Output Discharge | 140–200Ω internal discharge FET - eliminates need for external bleed resistor in space-constrained designs. |
| Auto-Recovery Protections | Overcurrent, short-circuit, and overtemperature faults self-clear once condition resolves - no manual reset required. |
| Reverse-Current Blocking | Prevents VOUT → VIN backfeed down to 35mV differential - critical for shared-bus and battery-isolation applications. |
| Soft-Start Control | Typical 2.1ms output rise time (CL = 4.7μF, RLOAD = 10Ω) - limits inrush current into heavy capacitive loads. |
| UVLO with Hysteresis | 2.3V turn-on / 2.12V turn-off threshold - prevents oscillation during slow-rising or noisy input rails. |
Applications
| Ultrabook Power Sequencing | USB 3.x Port Power Switching |
|---|---|
|
Use Scenario: Controlled power-up/down of discrete subsystems (e.g., Thunderbolt controller, WWAN module) in dual-battery Ultrabooks. IC Role / Device Role / Timing Role: High-side load switch enabling/disabling 3.3V/5V rails with synchronized discharge and fault reporting. Use Value: Eliminates need for discrete MOSFET + gate driver + protection IC, reducing BOM count by 4 components and PCB area by >30%. |
Use Scenario: Hot-plug power management for USB 3.x downstream ports supporting up to 900mA per port. IC Role / Device Role / Timing Role: USB-compliant load switch with reverse-current blocking and 6ms FLG blanking to tolerate plug-in inrush. Use Value: Meets USB-IF electrical compliance for VOUT droop, rise time, and short-circuit recovery without external timing components. |
| Solid-State Drive (SSD) VCCIO Rail | Set-Top Box Peripheral Power Gating |
|
Use Scenario: Isolating 1.8V/3.3V I/O supply to NAND controller during sleep mode to reduce standby leakage. IC Role / Device Role / Timing Role: Low-RDS(ON) power switch with fast turn-off (<20μs) and controlled discharge to meet NVMe P1/P2 state timing. Use Value: Achieves <1μA shutdown current and sub-0.5V residual VOUT in <0.4ms - satisfies JEDEC JESD22-A105 stress test requirements. |
Use Scenario: Dynamic power gating of HDMI receiver, tuner, or audio DAC in low-cost STB platforms. IC Role / Device Role / Timing Role: Single-chip solution providing enable control, fault monitoring, and reverse-voltage protection for unidirectional 5V rails. Use Value: Prevents damage from accidental reverse connection during field service and eliminates risk of backfeed into main 12V supply. |
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 |
|---|---|---|---|
| AP22817AKBWT-7 | Active-high enable (EN), identical RDS(ON), current rating, and protection features. | Requires high-asserted GPIO instead of low-asserted; same PCB layout but different MCU firmware logic. | Select when host controller uses active-high enable signaling and no level-shifting is desired. |
| TCK107AG,LF | 1.2A rating, 90mΩ RDS(ON), no integrated discharge FET, requires external 10kΩ pull-down on FLG. | Lacks output discharge and has higher conduction loss - unsuitable for USB hot-plug or fast power-down sequences. | Use only in cost-sensitive, non-USB applications where <1.2A load and no discharge requirement exist. |
Compared with AP22817AKBWT-7, the AP22817BKBWT-7 simplifies GPIO interface for low-active control schemes; versus TCK107AG, it delivers superior USB compliance via integrated discharge, tighter RDS(ON), and guaranteed 6ms FLG blanking-reducing validation effort and system-level fault margin risk.
Availability
AP22817BKBWT-7 is available at Aetrix Electronics and suitable for Ultrabook power sequencing, USB 3.x port switching, and SSD VCCIO rail management requiring stable component supply across industrial and consumer production cycles.
Supply support for AP22817BKBWT-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, consumer, and industrial markets.
The AP22817 series belongs to Diodes' load switch product line, engineered specifically for USB-compliant hot-swap and power-domain isolation in space-constrained portable electronics with strict thermal and EMI requirements.
FAQ
What is the maximum capacitive load the AP22817BKBWT-7 can safely drive during turn-on?
The device is characterized for CL = 4.7μF with 2.1ms typical rise time and supports up to 120μF bulk capacitance in USB applications when paired with ≥10μF input capacitance. Driving >120μF may extend rise time beyond 3.5ms and trigger overcurrent protection if inrush exceeds 2.2A; design guidance recommends using 10μF input cap instead of 1μF for large output banks.
Does the AP22817BKBWT-7 require external components for overcurrent fault filtering?
No external components are required for overcurrent fault filtering. The integrated 6ms deglitch circuit on the FLG pin suppresses transient inrush events, such as those caused by 100μF output capacitors charging, without needing RC networks or microcontroller debouncing firmware.
How does the reverse-voltage protection function behave under dynamic load conditions?
When VOUT exceeds VIN by ≥35mV for ≥6ms, the internal MOSFET turns off to block reverse current. Recovery occurs automatically within 2–5ms after the differential drops below 35mV, verified across −40°C to +85°C ambient. This behavior prevents damage during hot-swap disconnect or shared-bus contention.
Can the AP22817BKBWT-7 be used in automotive infotainment systems?
The AP22817BKBWT-7 is not AEC-Q100 qualified and is specified for −40°C to +85°C operation only. While its electrical specs meet many infotainment sub-system requirements, Diodes Incorporated explicitly states that automotive-grade variants require separate qualification-contact Diodes directly for PPAP-capable, IATF 16949-manufactured alternatives.
AP22817BKBWT-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):
- 1.5A
- Rds On (Typ):
- 75mOhm
- Input Type:
- Inverting
- Features:
- Load Discharge
- 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
AP22817BKBWT-7 FAQ
1.How can I place an order for AP22817BKBWT-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP22817BKBWT-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 AP22817BKBWT-7 reliable?
The price and inventory of AP22817BKBWT-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP22817BKBWT-7 is usually 5 days.
3.What payment methods are accepted for AP22817BKBWT-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP22817BKBWT-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP22817BKBWT-7?
AP22817BKBWT-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP22817BKBWT-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 AP22817BKBWT-7?
For technical support, including AP22817BKBWT-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP22817BKBWT-7 requirements.
6.How does Aetrix verify that AP22817BKBWT-7 is sourced from the original manufacturer or authorized distributors?
All AP22817BKBWT-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 AP22817BKBWT-7 meets industry standards.
7.What is the process for return or replacement of AP22817BKBWT-7?
All AP22817BKBWT-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP22817BKBWT-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 AP22817BKBWT-7 part is unused and in its original packaging.
Return procedure for AP22817BKBWT-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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