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Diodes Incorporated AP2161DFMG-7
- Part No.:
- AP2161DFMG-7
- Manufacturer:
- Diodes Incorporated
- Package:
- 6-UFDFN Exposed Pad
- Datasheet:
-
AP2161DFMG-7.pdf
- Description:
- IC PWR SWITCH P-CHANNEL 1:1 6DFN
- Quantity:
- Payment:
- Shipping:
Inventory:972
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Product details
Overview
AP2161DFMG-7 from Diodes Incorporated is an active-low enable, 1A single-channel high-side USB power switch with integrated output discharge, 95mΩ RDS(ON) at 5V, 1.5A current limiting, and 7ms deglitched fault reporting-designed for hot-swap protection in USB 2.0-compliant laptop docking stations and set-top box peripheral ports.
For engineers reviewing the AP2161DFMG-7 datasheet, AP2161DFMG-7 pinout, AP2161DFMG-7 application, or AP2161DFMG-7 equivalent, key selection criteria include enable polarity compatibility, thermal shutdown threshold (140°C), output discharge resistance (100Ω), and SO-8 package footprint suitability for space-constrained USB power rail designs.
Technical Context
This device implements a thermally protected, slew-rate-controlled high-side MOSFET driver with UVLO activation at 1.9V and automatic recovery hysteresis of 25°C. Its internal current-sense FET enables accurate 1.5A over-current limiting without external sensing resistors.
The FLG open-drain flag integrates 7ms hardware deglitching to suppress false triggers from capacitive load inrush, while the discharge NMOS provides 100Ω controlled discharge path when EN is de-asserted-eliminating need for external RC networks in USB port power sequencing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Current Limit | 1.5A typical; clamps output current during overload to prevent damage to downstream circuitry |
| RDS(ON) | 95mΩ max at +25°C, VIN=5V; limits I²R heating in SO-8 package under 1A continuous load |
| Input Voltage Range | 2.7V–5.5V; supports full USB 2.0 bus voltage range including low-voltage brownout conditions |
| Enable Polarity | Active-low (EN logic low = ON); matches legacy USB hub controller GPIO interface requirements |
| FLG Blanking Time | 7ms typical; suppresses transient over-current events from 120µF output capacitance without false flag assertion |
| Shutdown Current | 1µA max; minimizes standby power loss in battery-backed USB peripherals |
| Discharge Resistance | 100Ω nominal; discharges 10µF load to <0.5V in ≤0.6ms for safe hot-removal compliance |
Pinout & Package
AP2161DFMG-7 is packaged in SO-8 (JEDEC MS-012) with exposed pad for thermal enhancement. Pin 1 is NC (no internal connection, recommended tied to OUT), Pin 2/3 are IN (must be externally shorted), Pin 4 is EN (active-low), Pin 5 is FLG (open-drain fault flag), Pins 6/7 are OUT (must be externally shorted), Pin 8 is GND.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (NC) | No internal connection | Must be externally connected to OUT to reduce EMI and improve thermal coupling |
| Pins 2 & 3 (IN) | Power input supply node | Dual pins reduce trace inductance and improve current sharing for USB VBUS routing |
| Pin 4 (EN) | Active-low enable control | Logic low ≤0.8V turns switch ON; compatible with 3.3V/5V microcontroller GPIO |
| Pin 5 (FLG) | Open-drain fault indicator | Asserts low on over-current or over-temperature; requires external pull-up for system monitoring |
| Pins 6 & 7 (OUT) | Switched output to load | Dual pins minimize voltage drop across PCB traces feeding USB downstream ports |
| Pin 8 (GND) | Power ground reference | Primary thermal path; exposed pad must be soldered to solid GND plane for θJA = 127°C/W |
Key Features
| Feature | Design Value |
|---|---|
| Integrated output discharge | 100Ω internal NMOS discharges load capacitors on disable-enables safe hot-removal without external components |
| Reverse current blocking | Prevents backflow from loaded OUT to IN when switch is off-critical for multi-rail systems with shared VBUS |
| UVLO with hysteresis | Turns ON only above 1.9V and stays ON until VIN drops below ~1.6V-prevents erratic switching during power ramp |
| Thermal shutdown recovery | Shuts down at 140°C junction temp and auto-restarts after 25°C cooldown-avoids latch-up in sustained overload |
| ESD robustness | 4kV HBM / 300V MM rating-meets IEC61000-4-2 level 4 for USB-facing interfaces |
Applications
| USB 2.0 Hub Power Management | Laptop Docking Station Port Protection |
|---|---|
|
Use Scenario: Isolating individual USB downstream ports in a 4-port hub IC to prevent bus collapse during peripheral insertion. IC Role / Device Role / Timing Role: High-side power switch controlling VBUS delivery per port with 0.6ms rise time to limit inrush. Use Value: Prevents host controller reset by limiting peak inrush to ≤1.5A per port during hot-plug events. |
Use Scenario: Enabling/disabling USB-C or legacy USB-A ports on a laptop docking station based on physical connector detection. IC Role / Device Role / Timing Role: Active-low enable switch synchronized to mechanical presence detection signal for sequenced power-up. Use Value: Ensures clean power ramp and automatic discharge of port capacitance before reconnection-meeting USB IF hot-plug compliance. |
| Set-Top Box Peripheral Port | Smartphone OTG Power Control |
|
Use Scenario: Providing isolated 5V power to HDMI CEC accessories or IR blasters connected via USB mini-B. IC Role / Device Role / Timing Role: Fault-protected power gate with FLG reporting to MCU for diagnostics on accessory over-current. Use Value: Enables firmware-level port disable and recovery without manual reset-reducing field service calls. |
Use Scenario: Controlling VBUS delivery from smartphone to USB OTG peripherals (e.g., flash drives, keyboards) during host mode. IC Role / Device Role / Timing Role: Low-quiescent-current (0.5µA typ) switch enabling battery-conscious power gating. Use Value: Extends smartphone battery life by eliminating leakage paths when OTG is inactive-critical for mobile use cases. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-side USB power switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TUSB2036IPW | Integrated USB 2.0 transceiver + power switch; no output discharge; 1.2A current limit | Requires separate USB PHY layer; lacks dedicated FLG pin for fault isolation | Choose when USB signal integrity and protocol handling are required alongside power control |
| TPS2051BDBVR | Active-high enable; 1.5A limit; no integrated discharge; 110mΩ RDS(ON) | Needs external discharge circuit for hot-removal compliance; higher conduction loss | Choose when existing system design uses active-high GPIO control and discharge is handled elsewhere |
Compared with TUSB2036IPW and TPS2051BDBVR, AP2161DFMG-7 uniquely combines active-low enable, integrated 100Ω discharge, and 7ms deglitched FLG in SO-8-reducing BOM count and PCB area for discrete USB port protection.
Availability
AP2161DFMG-7 is available at Aetrix Electronics and suitable for USB 2.0 hub designs, laptop docking station power management, and set-top box peripheral port protection requiring stable component supply and long-term industrial lifecycle support.
Supply support for AP2161DFMG-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 power management, signal integrity, and protection solutions for consumer, computing, and industrial markets.
The AP2161D/AP2171D product line delivers USB-compliant high-side power switches with integrated protection-designed specifically for hot-swap reliability in portable and embedded USB host systems.
FAQ
What is the maximum continuous output current supported by AP2161DFMG-7?
The AP2161DFMG-7 is rated for 1A maximum continuous load current per Diodes Incorporated's Recommended Operating Conditions. Its 1.5A current limit is a protection threshold-not a sustained operating point-and thermal derating applies above +25°C ambient. For 1A continuous operation in SO-8, ensure θJA ≤127°C/W via proper PCB copper area and thermal vias.
Does AP2161DFMG-7 require external components for basic USB port protection?
No external components are required for core functionality: UVLO, current limiting, thermal shutdown, and FLG deglitching are fully integrated. A 0.1µF ceramic capacitor between IN and GND is recommended for noise suppression, and a pull-up resistor on FLG is needed for system-level fault monitoring-but no external discharge circuit or current-sense resistor is necessary.
How does the output discharge function operate during hot-removal?
When EN is driven high (disabled), the internal 100Ω NMOS discharge path activates, sinking current from the output capacitor to GND. With a 10µF load, VOUT falls below 0.5V in ≤0.6ms-ensuring no residual voltage remains on the USB port pins during cable unplug, satisfying USB-IF hot-removal safety requirements.
Can AP2161DFMG-7 be used in automotive USB applications?
AP2161DFMG-7 operates from –40°C to +85°C and meets RoHS/UL/IEC60950-1 standards, but it is not AEC-Q200 qualified. It is suitable for infotainment USB ports in non-safety-critical cabin systems where extended temperature validation and automotive-grade qualification are not mandated by OEM specifications.
AP2161DFMG-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- 6-UFDFN 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):
- 1A
- Rds On (Typ):
- 90mOhm
- Input Type:
- 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:
- U-DFN2018-6
AP2161DFMG-7 FAQ
1.How can I place an order for AP2161DFMG-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP2161DFMG-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 AP2161DFMG-7 reliable?
The price and inventory of AP2161DFMG-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP2161DFMG-7 is usually 5 days.
3.What payment methods are accepted for AP2161DFMG-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP2161DFMG-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP2161DFMG-7?
AP2161DFMG-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP2161DFMG-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 AP2161DFMG-7?
For technical support, including AP2161DFMG-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP2161DFMG-7 requirements.
6.How does Aetrix verify that AP2161DFMG-7 is sourced from the original manufacturer or authorized distributors?
All AP2161DFMG-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 AP2161DFMG-7 meets industry standards.
7.What is the process for return or replacement of AP2161DFMG-7?
All AP2161DFMG-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP2161DFMG-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 AP2161DFMG-7 part is unused and in its original packaging.
Return procedure for AP2161DFMG-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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