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Diodes Incorporated AP2151DMPG-13
- Part No.:
- AP2151DMPG-13
- Manufacturer:
- Diodes Incorporated
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad
- Datasheet:
-
AP2151DMPG-13.pdf
- Description:
- IC PWR SWITCH P-CHAN 1:1 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,497
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Product details
Overview
AP2151DMPG-13 from Diodes Incorporated is a single-channel, active-high enable, high-side USB power switch with integrated output discharge, 0.8A current limiting, 90mΩ RDS(ON) (U-DFN2018-6), and 7ms FLG deglitch - designed for USB 2.0 hot-swap applications in laptops, docking stations, and HUBs.
For engineers reviewing the AP2151DMPG-13 datasheet, AP2151DMPG-13 pinout, AP2151DMPG-13 application, or AP2151DMPG-13 equivalent, key selection criteria include enable polarity compatibility, thermal shutdown threshold (140°C), output discharge resistance (100Ω), and SO-8/U-DFN2018-6 package thermal performance (θJA = 70°C/W).
Technical Context
The AP2151D implements a controlled gate driver with slew-rate limiting to achieve 0.6ms typical rise time and suppress inrush current during hot-plug events. Its UVLO circuit (1.9V typ) ensures the switch remains off until input voltage stabilizes above safe operating threshold.
Over-current protection uses an internal sense FET - not external shunt - enabling accurate 0.8A current limiting without added series resistance. Fault reporting via open-drain FLG includes 7ms blanking to reject transient overloads, and thermal shutdown activates at 140°C with 25°C hysteresis for stable cycling under sustained fault.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Current Limit | 0.8A typical - clamps output current during overload to protect downstream circuitry without latch-off |
| RDS(ON) | 90mΩ max (U-DFN2018-6, VIN = 5V) - enables low conduction loss and <100mW dissipation at 0.5A |
| Input Voltage Range | 2.7V–5.5V - supports full USB 2.0 bus range and 3.3V/5V system rails |
| Enable Polarity | Active-high - simplifies interface with microcontroller GPIOs without level-shifting or inversion logic |
| FLG Blanking Time | 7ms typical - prevents false fault reporting during capacitive load turn-on transients |
| Discharge Resistance | 100Ω - provides controlled output discharge path when disabled, reducing residual voltage on load caps |
| Shutdown Current | 1µA max - minimizes standby power draw in battery-powered portable systems |
Pinout & Package
AP2151DMPG-13 is packaged in U-DFN2018-6: 2.0mm × 1.8mm, 0.5mm pitch, exposed thermal pad internally connected to GND. Requires external connection of exposed pad to PCB ground plane with ≥4 thermal vias for θJA = 70°C/W performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND | Ground reference | Primary return path for power and signal; exposed pad must be soldered to PCB ground for thermal management |
| IN | Power input | Accepts 2.7V–5.5V supply; all IN pins (in multi-pin packages) must be tied together externally |
| EN | Enable control | Active-high digital input; drives internal gate driver when pulled ≥2.0V (VIH min) |
| FLG | Fault indicator | Open-drain output asserted low during over-current or over-temperature; 7ms deglitch prevents chatter |
| OUT | Switched output | Delivers regulated power to load; all OUT pins must be tied together externally; includes internal discharge path |
Key Features
| Feature | Design Value |
|---|---|
| Output discharge function | 100Ω internal NMOS discharge path activated on disable - eliminates need for external bleed resistors |
| Reverse current blocking | Prevents backflow from output to input when VOUT > VIN - protects upstream supplies during hot-removal |
| Controlled rise/fall time | 0.6ms rise / 0.05ms fall (CL = 1µF, RL = 10Ω) - limits inrush while maintaining fast turn-off for fault response |
| UVLO with hysteresis | 1.9V turn-on / ~1.6V turn-off - ensures clean power sequencing and prevents oscillation near brown-out thresholds |
| ESD robustness | 15kV IEC 61000-4-2 (with external capacitance), 4kV HBM - withstands handling and system-level ESD events |
Applications
| USB 2.0 Port Power Switching | Laptop Docking Station Load Control |
|---|---|
|
Use Scenario: Hot-plugging peripherals into powered USB ports without causing bus reset or host controller fault. IC Role / Device Role / Timing Role: High-side power switch controlling VBUS delivery with controlled ramp-up and short-circuit protection. Use Value: Prevents inrush-induced voltage droop on shared 5V rail and avoids false over-current trips via 7ms FLG deglitch. |
Use Scenario: Isolating auxiliary power domains (e.g., HDMI, Ethernet, USB-C PD) in laptop docking stations during insertion/removal. IC Role / Device Role / Timing Role: Single-channel load switch enabling soft-start and reverse-current blocking between host and peripheral subsystems. Use Value: Eliminates need for discrete MOSFET + gate driver + RC timing network - reduces BOM count and layout area by >40%. |
| Desktop PC Front-Panel USB Hub | Smartphone Charging Circuit Protection |
|
Use Scenario: Providing isolated, protected 5V power to front-panel USB ports on desktop motherboards with shared PSU rails. IC Role / Device Role / Timing Role: Current-limited high-side switch with thermal foldback and UVLO ensuring safe operation under cable short or connector debris faults. Use Value: Maintains system stability during repeated hot-plug cycles - no firmware intervention required for fault recovery. |
Use Scenario: Protecting USB OTG or accessory charging paths in smartphones against reverse current and shorted cables. IC Role / Device Role / Timing Role: Active-high load switch placed between PMIC VBUS and accessory port, enabling/disabling power per USB enumeration state. Use Value: Blocks reverse current from accessory battery into phone's PMIC during disconnection - extends battery life and prevents leakage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-side USB load switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TUSB2036IPWR | Integrated USB 2.0 hub controller with built-in power switches - not a standalone load switch; requires configuration registers and clock source | Designed for multi-port hub IC implementation, not single-channel isolation | Select only if adding full USB hub functionality; not drop-in for AP2151DMPG-13's discrete switching role |
| TPS22965DSGR | 0.8A limit, 44mΩ RDS(ON), active-high EN, but no integrated output discharge or 7ms FLG deglitch | Lacks discharge function - requires external resistor/capacitor for VOUT bleed-down | Choose when lowest on-resistance is critical and discharge can be implemented externally; verify FLG noise immunity in target layout |
Compared with TUSB2036IPWR and TPS22965DSGR, AP2151DMPG-13 uniquely combines active-high enable, integrated discharge, and factory-trimmed 7ms fault blanking - eliminating external components while meeting USB 2.0 hot-swap timing and safety requirements out-of-box.
Availability
AP2151DMPG-13 is available at Aetrix Electronics and suitable for USB 2.0 port protection, laptop docking station power management, and desktop front-panel hub applications requiring stable component supply across industrial temperature range (–40°C to +85°C).
Supply support for AP2151DMPG-13 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 consumer, computing, and industrial markets.
The AP2151D belongs to Diodes' USB Power Switch product line - engineered specifically for robust hot-swap operation in space-constrained USB endpoints, emphasizing low RDS(ON), precise current limiting, and integrated fault management without external components.
FAQ
What is the maximum continuous load current supported by AP2151DMPG-13?
The AP2151DMPG-13 supports 0.5A maximum continuous load current per the Recommended Operating Conditions table. Although its current limit is 0.8A, sustained operation above 0.5A risks thermal shutdown due to power dissipation in the U-DFN2018-6 package - especially above 60°C ambient. Derating curves in the datasheet confirm 0.5A as the safe continuous rating at +85°C.
Does AP2151DMPG-13 require external components for basic USB 2.0 operation?
No external components are required for core USB 2.0 hot-swap operation. The device integrates UVLO, current limiting, thermal shutdown, FLG deglitch, and output discharge. A 0.1µF ceramic capacitor between IN and GND is recommended for input stability, and a 120µF output capacitor is advised for low-temperature short-circuit robustness - but neither is mandatory for functional enable/disable behavior.
How does the FLG pin behave during simultaneous over-current and over-temperature events?
The FLG pin goes low when either over-current or over-temperature is detected and remains low until both fault conditions are cleared. There is no priority or masking - the flag asserts on first fault and de-asserts only after both current returns below trip threshold and junction temperature falls below 115°C (140°C – 25°C hysteresis). Recovery is automatic with no reset pin required.
Can AP2151DMPG-13 be used in automotive infotainment USB ports?
AP2151DMPG-13 is not AEC-Q200 qualified and operates only from –40°C to +85°C ambient - insufficient for under-hood automotive environments. While it meets USB 2.0 electrical specs, its lack of automotive-grade qualification, extended temperature range (–40°C to +125°C), and absence of PPAP documentation make it unsuitable for production automotive infotainment systems per OEM requirements.
AP2151DMPG-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad
- 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):
- 500mA
- Rds On (Typ):
- 95mOhm
- Input Type:
- Non-Inverting
- Features:
- Load Discharge, Status Flag
- Fault Protection:
- Current Limiting (Fixed), Over Temperature, Reverse Current, UVLO
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-MSOP-EP
AP2151DMPG-13 FAQ
1.How can I place an order for AP2151DMPG-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP2151DMPG-13 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 AP2151DMPG-13 reliable?
The price and inventory of AP2151DMPG-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP2151DMPG-13 is usually 5 days.
3.What payment methods are accepted for AP2151DMPG-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP2151DMPG-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP2151DMPG-13?
AP2151DMPG-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP2151DMPG-13 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 AP2151DMPG-13?
For technical support, including AP2151DMPG-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP2151DMPG-13 requirements.
6.How does Aetrix verify that AP2151DMPG-13 is sourced from the original manufacturer or authorized distributors?
All AP2151DMPG-13 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 AP2151DMPG-13 meets industry standards.
7.What is the process for return or replacement of AP2151DMPG-13?
All AP2151DMPG-13 units undergo pre-shipment inspection (PSI). If there is an issue with AP2151DMPG-13, 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 AP2151DMPG-13 part is unused and in its original packaging.
Return procedure for AP2151DMPG-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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