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Diodes Incorporated AP2151DM8G-13
- Part No.:
- AP2151DM8G-13
- Manufacturer:
- Diodes Incorporated
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
AP2151DM8G-13.pdf
- Description:
- IC PWR SWITCH P-CHAN 1:1 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,495
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Product details
Overview
AP2151DM8G-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) at 5V, and 7ms deglitched fault reporting - designed for USB 2.0 hot-swap ports in laptops and docking stations.
For engineers reviewing the AP2151DM8G-13 datasheet, AP2151DM8G-13 pinout, AP2151DM8G-13 application, or AP2151DM8G-13 equivalent, this device delivers precise over-current protection, reverse current blocking, and controlled 0.6ms rise time without external components - critical for stable USB port power sequencing and fault resilience.
Technical Context
The AP2151DM8G-13 implements a thermally protected high-side NMOS switch with internal current-sense FET architecture, enabling accurate 0.8A current limiting without external sense resistors. Its UVLO (1.9V typ) ensures safe turn-on only after input stabilization, while the 7ms FLG deglitch prevents false tripping during capacitive load inrush.
It integrates an active discharge path (100Ω internal NMOS) that pulls OUT to GND when disabled, eliminating floating voltage on downstream circuitry. The SO-8 package provides low thermal resistance (127°C/W) and exposed pad grounding for reliable operation under sustained 500mA continuous load.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Current Limit | 0.8A typical - clamps output current to prevent damage during overload or short-circuit events. |
| RDS(ON) | 90mΩ max at VIN = 5V, TA = +25°C - minimizes conduction loss and self-heating in USB 5V rail applications. |
| Input Voltage Range | 2.7V to 5.5V - supports full USB 2.0 specification and compatibility with Li-ion battery-backed systems. |
| Enable Polarity | Active High - simplifies interface with microcontroller GPIOs without level-shifting or inversion logic. |
| FLG Blanking Time | 7ms typical - suppresses transient over-current reports caused by large output capacitance (e.g., 120µF), eliminating need for external RC filters. |
| Shutdown Current | 1µA max - enables ultra-low-power standby in portable devices where system-level power gating is required. |
| Discharge Resistance | 100Ω - provides controlled, predictable discharge of output capacitors (e.g., 1µF → <0.6ms to <0.5V), preventing latch-up or backfeed. |
Pinout & Package
AP2151DM8G-13 is packaged in SO-8 (M8G) with exposed thermal pad connected internally to GND. The exposed pad must be externally soldered to PCB ground plane for optimal thermal performance (θJA = 127°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (GND) | Power Ground Reference | Primary return path for switch current and IC bias; connects to exposed thermal pad. |
| 2,3 (IN) | Input Power Supply | Dual-pin input for robust current handling; both pins must be tied together externally to minimize trace inductance. |
| 4 (EN) | Enable Control Input | Active-High digital control: logic high ≥2.0V enables switch; low ≤0.8V disables it and activates discharge. |
| 5 (FLG) | Open-Drain Fault Indicator | Active-Low flag asserted during over-current or over-temperature; requires external pull-up for MCU interrupt detection. |
| 6,7 (OUT) | Switched Output | Dual-pin output delivering regulated power to load; both pins must be tied together externally for current sharing. |
| 8 (NC) | No Internal Connection | Not bonded; recommended to connect to OUT for mechanical stability and EMI reduction. |
Key Features
| Feature | Design Value |
|---|---|
| Output Discharge Function | Integrated 100Ω discharge path automatically activates on disable, eliminating external discharge circuitry and ensuring safe hot-removal. |
| Reverse Current Blocking | Prevents backflow from loaded OUT to IN when switch is off - essential for multi-rail systems and battery-backed peripherals. |
| Controlled Rise/Fall Time | 0.6ms typical rise time limits inrush current to <1A during hot-plug, reducing stress on upstream power supplies and connectors. |
| Thermal Shutdown with Hysteresis | Shuts down at 140°C junction temperature and re-enables only after cooling by 25°C - prevents oscillation and enables self-recovery under intermittent faults. |
| ESD Robustness | 15kV IEC 61000-4-2 contact ESD rating with external capacitance - meets industrial-grade surge immunity requirements for USB ports. |
Applications
| USB 2.0 Host Port Protection | Laptop Docking Station Power Management |
|---|---|
|
Use Scenario: A laptop USB-A port supplies power to peripherals during hot-plug insertion. IC Role / Device Role / Timing Role: High-side power switch controlling VBUS delivery with inrush limiting and fault isolation. Use Value: Prevents host supply droop and connector arcing via 0.6ms controlled ramp; FLG alerts firmware before thermal shutdown occurs. |
Use Scenario: Docking station routes 5V power to multiple USB devices, monitors load integrity per port. IC Role / Device Role / Timing Role: Independent port power controller with per-port fault reporting and discharge on disconnect. Use Value: Enables clean power removal from each peripheral without affecting other ports; NC pin tied to OUT improves signal integrity. |
| Set-Top Box USB Peripheral Interface | Industrial USB Hub with Hot-Swap Support |
|
Use Scenario: STB provides USB power to external HDDs or Wi-Fi adapters in consumer living-room environments. IC Role / Device Role / Timing Role: Over-current protected power gate with UVLO ensuring no power delivery until stable 5V rail is established. Use Value: Eliminates risk of brownout-induced firmware crash during HDD spin-up; 1µA shutdown current extends standby battery life. |
Use Scenario: Ruggedized USB hub used in factory automation equipment requires reliable hot-swap under wide ambient temperature (-40°C to +85°C). IC Role / Device Role / Timing Role: Thermally hardened high-side switch with 140°C shutdown threshold and 25°C hysteresis for continuous duty cycles. Use Value: Maintains port availability in uncooled enclosures; SO-8 exposed pad ensures thermal reliability without heatsinks. |
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 |
|---|---|---|---|
| TUSB2036IRHBR | USB 2.0 transceiver + integrated power switch; includes data line switching and ESD protection up to 15kV HBM. | Designed for full USB 2.0 signal+power hub ICs; lacks standalone discharge function and has higher quiescent current (15µA). | Select when simultaneous data path control and power switching are required; not suitable as drop-in replacement for pure power-gating use cases. |
| TPS2051BDBVR | 0.5A current limit, 120mΩ RDS(ON), no integrated discharge; FLG blanking time is 10µs (not ms-scale), requiring external filtering. | Targeted at cost-sensitive embedded USB ports where discharge is handled externally; limited thermal margin (θJA = 215°C/W in SOT-23). | Choose for lower-cost designs accepting higher RDS(ON) and external discharge circuitry; verify FLG noise immunity with RC network. |
Compared with TUSB2036IRHBR and TPS2051BDBVR, the AP2151DM8G-13 uniquely combines active-high enable, integrated 100Ω discharge, and 7ms deglitch in SO-8 - offering simpler BOM, better thermal performance, and superior hot-swap reliability for dedicated USB power gating.
Availability
AP2151DM8G-13 is available at Aetrix Electronics and suitable for USB 2.0 host ports, laptop docking stations, and industrial USB hubs requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for AP2151DM8G-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 industrial and consumer markets.
The AP2151D product line targets USB and hot-swap power distribution, emphasizing precision current limiting, thermal resilience, and minimal external component count for compact, robust port designs.
FAQ
What is the maximum continuous load current supported by AP2151DM8G-13?
The AP2151DM8G-13 supports 500mA maximum continuous load current per the Recommended Operating Conditions table. Although its current limit is 0.8A, sustained operation above 500mA requires careful thermal design due to RDS(ON) heating - especially in SO-8 without enhanced copper pour.
Does AP2151DM8G-13 require external components for basic USB port protection?
No external components are required for core functionality: UVLO, current limiting, thermal shutdown, and FLG deglitch operate autonomously. However, a 0.1µF ceramic capacitor between IN and GND is recommended for input stability, and a 10–120µF output capacitor improves fault recovery behavior and reduces voltage overshoot.
How does the discharge function behave during enable de-assertion?
When EN is driven low, the internal 100Ω NMOS discharge path activates immediately, sinking current from the output capacitor to GND. For a 120µF load, discharge completes in ~12ms (RC time constant); the function remains active until OUT falls below 0.5V, ensuring no residual voltage remains on downstream circuitry.
Can AP2151DM8G-13 be used in automotive USB applications?
The AP2151DM8G-13 is rated for –40°C to +85°C ambient operation and meets IEC 61000-4-2 ESD requirements, but it is not AEC-Q200 qualified. It is suitable for infotainment USB ports in non-safety-critical consumer-grade automotive accessories, not for under-hood or ADAS-related systems requiring extended temperature or qualification compliance.
AP2151DM8G-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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
AP2151DM8G-13 FAQ
1.How can I place an order for AP2151DM8G-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP2151DM8G-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 AP2151DM8G-13 reliable?
The price and inventory of AP2151DM8G-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP2151DM8G-13 is usually 5 days.
3.What payment methods are accepted for AP2151DM8G-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP2151DM8G-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP2151DM8G-13?
AP2151DM8G-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP2151DM8G-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 AP2151DM8G-13?
For technical support, including AP2151DM8G-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP2151DM8G-13 requirements.
6.How does Aetrix verify that AP2151DM8G-13 is sourced from the original manufacturer or authorized distributors?
All AP2151DM8G-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 AP2151DM8G-13 meets industry standards.
7.What is the process for return or replacement of AP2151DM8G-13?
All AP2151DM8G-13 units undergo pre-shipment inspection (PSI). If there is an issue with AP2151DM8G-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 AP2151DM8G-13 part is unused and in its original packaging.
Return procedure for AP2151DM8G-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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