My Inquiry
My Account
Diodes Incorporated AP1212HSL-U
- Part No.:
- AP1212HSL-U
- Manufacturer:
- Diodes Incorporated
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AP1212HSL-U.pdf
- Description:
- IC PWR SWITCH N-CHANNEL 1:2 8SOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,957
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
AP1212HSL-U from Diodes Incorporated is a dual-channel high-side USB power switch IC with independent enable and fault flag control, designed for bus-powered and self-powered USB hubs and peripheral ports. It delivers 500mA per channel at 2.7–5.5V input, features 110mΩ typical RDS(ON), 1.25A short-circuit current limit, and 1ms soft-start to suppress inrush-induced voltage droop.
For engineers reviewing the AP1212HSL-U datasheet, AP1212HSL-U pinout, AP1212HSL-U application, or AP1212HSL-U equivalent, this device supports USB-compliant hot-plug power sequencing, thermal/UVLO/fault protection, and logic-compatible (3.3V/5V) enable inputs - critical for embedded USB host design, portable charger circuits, and industrial docking stations.
Technical Context
The AP1212HSL-U integrates two independent N-channel MOSFET high-side switches with internal charge pumps, current-limit sensing, and thermal shutdown circuitry. Each channel includes dedicated EN and FLG pins, enabling per-port power control and fault reporting without shared logic dependencies.
Its UVLO threshold is 2.4V (typ), turn-on rise time is 1ms (soft-start), and fault flag is open-drain active-low - directly interfacing with USB controller GPIOs. The device operates across –40°C to +125°C ambient and uses SOP-8L packaging optimized for thermal dissipation in compact USB port designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.7V to 5.5V - supports both 3.3V and 5V USB system rails without external level shifting. |
| Continuous Current per Channel | 500mA minimum - meets USB 2.0 downstream port current requirement for full-speed devices. |
| RDS(ON) | 110mΩ typical at VIN = 5V - ensures ≤265mV voltage drop at 500mA, satisfying USB voltage-drop compliance. |
| Short-Circuit Current Limit | 1.25A maximum - provides robust overcurrent protection while staying below UL 25VA safety threshold. |
| Enable Logic Polarity | Active-high (H) - matches standard USB controller output logic without inversion circuitry. |
| Fault Flag Type | Open-drain, active-low - allows wired-OR connection of multiple flags to single interrupt line on host controller. |
| Thermal Shutdown Threshold | 140°C (with 10°C hysteresis) - prevents latch-up during sustained overload or poor PCB thermal design. |
Pinout & Package
SOP-8L package (4.9mm × 3.9mm × 1.75mm height), RoHS-compliant, green molding compound, lead-free finish. Exposed pad not present; thermal path relies on copper pour under GND pins.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (EN1) | Channel 1 Enable Input | Active-high digital control signal; must be driven - floating prohibited per datasheet. |
| 2 (FLG1) | Channel 1 Fault Flag Output | Open-drain output pulled low during overcurrent, UVLO, or thermal shutdown. |
| 3 (EN2) | Channel 2 Enable Input | Independent active-high enable for second USB port; no cross-channel dependency. |
| 4 (FLG2) | Channel 2 Fault Flag Output | Separate fault reporting enables per-port diagnostics without software arbitration. |
| 5 (GND) | Power and Signal Ground | Common return for internal circuitry, MOSFET sources, and flag pull-ups. |
| 6 (OUT2) | Channel 2 Switch Output | Source terminal of second N-MOSFET; connects to downstream USB VBUS load side. |
| 7 (OUT1) | Channel 1 Switch Output | Source terminal of first N-MOSFET; isolated from OUT2 for independent port control. |
| 8 (IN) | Supply Input | Drain terminal for both MOSFETs and power rail for internal bias circuitry; requires local 0.1µF bypass. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent high-side switching | Enables concurrent but isolated power control of two USB ports - eliminates single-point failure risk in multi-port hubs. |
| 1ms soft-start with controlled slew rate | Prevents >100mV upstream VBUS droop during hot-plug, avoiding USB enumeration failures in bus-powered hosts. |
| 110μA typical on-state supply current | Minimizes quiescent power draw in always-on USB host applications - critical for battery-backed systems. |
| Output voltage tolerance above input (off-state) | Allows OUTx to float up to 7V while disabled - supports back-powering scenarios and mixed-rail system interconnects. |
| Thermal shutdown with 10°C hysteresis | Guarantees automatic recovery only after junction cools to 130°C - prevents thermal cycling damage during overload. |
Applications
| USB Hub Power Management | Portable Battery Charger Port Control |
|---|---|
|
Use Scenario: Dual-port USB 2.0 hub in a compact industrial docking station requiring independent port enable/disable and fault isolation. IC Role / Device Role / Timing Role: High-side power switch managing VBUS delivery to each downstream port; coordinates with USB controller via EN/FLG signals. Use Value: Prevents bus-wide reset during single-port overcurrent events and maintains stable upstream VBUS during hot-plug via 1ms soft-start. |
Use Scenario: Dual-output USB charging module in a field-deployable medical data logger with separate 5V/3.3V peripheral ports. IC Role / Device Role / Timing Role: Independent power gate for two USB-A outputs, enabling selective power delivery and real-time fault reporting to MCU. Use Value: Enables firmware-controlled port disable during battery low-voltage conditions while maintaining 110mΩ low-loss conduction when active. |
| Hot-Plug Industrial Peripherals | Self-Powered USB Audio Interface |
|
Use Scenario: DIN-rail mounted USB interface for PLC I/O modules where peripherals are connected/disconnected during operation. IC Role / Device Role / Timing Role: High-side switch enforcing USB-compliant inrush current limiting and immediate fault signaling upon short-circuit. Use Value: Limits peak inrush to <140mA and triggers FLG within 50µS of overcurrent - protecting upstream 5V rail and enabling fast firmware response. |
Use Scenario: USB audio interface with dual headphone and microphone ports requiring clean power sequencing and EMI suppression. IC Role / Device Role / Timing Role: Dual-channel VBUS switch integrating soft-start and ferrite bead compatibility to meet USB audio jitter and noise specifications. Use Value: Reduces conducted EMI by limiting di/dt during turn-on and supports external ferrite beads without compromising current capability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual high-side USB power switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AP2146WU-7 | Single-channel, 2.7–5.5V, 1.5A rated, integrated 100Ω pull-down on EN, no FLG pin. | Lacks per-port fault reporting and dual-channel independence; suited for simpler single-port designs. | Select when cost-sensitive single-port applications require higher current rating and simplified control. |
| AP2156WU-7 | Dual-channel, 2.7–5.5V, 1.5A/channel, integrated FLG logic OR-ing, 60mΩ RDS(ON), smaller DFN-10 package. | Offers lower on-resistance and smaller footprint but requires different PCB layout and lacks SOP-8L pin compatibility. | Choose for next-gen designs needing improved efficiency, space savings, and modern thermal performance - not drop-in replacement. |
Compared with AP1212HSL-U, AP2146WU-7 reduces component count for single-port use but removes fault visibility, while AP2156WU-7 improves power density and conduction loss yet demands layout redesign - making AP1212HSL-U optimal for legacy SOP-8L-based USB hub upgrades requiring minimal change.
Availability
AP1212HSL-U is available at Aetrix Electronics and suitable for USB hub power management, portable battery charger port control, hot-plug industrial peripherals, and self-powered USB audio interfaces requiring stable component supply and long-term industrial availability.
Supply support for AP1212HSL-U 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 industrial, computing, and consumer markets.
The AP1212 series belongs to Diodes' USB power switch product line, engineered specifically to meet USB specification requirements for voltage drop, inrush control, fault reporting, and thermal reliability in embedded host applications.
FAQ
Is AP1212HSL-U pin-compatible with AP1212HSL-13?
Yes - both share identical SOP-8L pinout, electrical characteristics, and thermal behavior. The "-U" suffix denotes tape-and-reel packaging with 2500 units per reel, while "-13" indicates the same packaging format per Diodes' ordering nomenclature; no functional or mechanical differences exist between them.
Can AP1212HSL-U drive a 1A load continuously?
No - its guaranteed continuous current is 500mA per channel per datasheet (Section 6, Recommended Operating Conditions). While short-circuit limit reaches 1.25A, sustained 1A operation exceeds thermal limits in SOP-8L without aggressive heatsinking and violates USB specification compliance for downstream ports.
What is the purpose of the 10ms delay before asserting EN?
The 10ms delay ensures VIN has stabilized and internal bias circuitry has powered up fully. Asserting EN before supply stabilization risks undefined logic states, incomplete UVLO release, or false fault flag assertion - all documented in Section 7 (Test Circuit Note 3) of the datasheet.
Does AP1212HSL-U support 3.3V-only logic control?
Yes - its enable input threshold is 0.8V (min) low and 2.4V (min) high, with ±0.01µA input current across 0–5.5V range. A 3.3V GPIO cleanly satisfies VIL/VIH margins and requires no level-shifting, as confirmed in Electrical Characteristics Table (Section 5, VIT and IEN).
AP1212HSL-U Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Obsolete
- Switch Type:
- USB Switch
- Number of Outputs:
- 2
- Ratio - Input:Output:
- 1:2
- Output Configuration:
- High Side
- Output Type:
- N-Channel
- Interface:
- On/Off
- Voltage - Load:
- 2.7V ~ 5.5V
- Voltage - Supply (Vcc/Vdd):
- Not Required
- Current - Output (Max):
- 500mA
- Rds On (Typ):
- 110mOhm
- Input Type:
- Non-Inverting
- Features:
- Status Flag
- Fault Protection:
- Current Limiting (Fixed), Over Temperature, UVLO
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOP
AP1212HSL-U FAQ
1.How can I place an order for AP1212HSL-U through Aetrix?
Please submit a Request for Quotation (RFQ) for AP1212HSL-U 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 AP1212HSL-U reliable?
The price and inventory of AP1212HSL-U are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP1212HSL-U is usually 5 days.
3.What payment methods are accepted for AP1212HSL-U?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP1212HSL-U transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP1212HSL-U?
AP1212HSL-U orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP1212HSL-U 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 AP1212HSL-U?
For technical support, including AP1212HSL-U datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP1212HSL-U requirements.
6.How does Aetrix verify that AP1212HSL-U is sourced from the original manufacturer or authorized distributors?
All AP1212HSL-U 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 AP1212HSL-U meets industry standards.
7.What is the process for return or replacement of AP1212HSL-U?
All AP1212HSL-U units undergo pre-shipment inspection (PSI). If there is an issue with AP1212HSL-U, 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 AP1212HSL-U part is unused and in its original packaging.
Return procedure for AP1212HSL-U:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AP1212HSL-U Tags
-
TPS22919DCKR
Texas Instruments
-
MIC2091-1YM5-TR
Microchip Technology
-
MIC2090-1YM5-TR
Microchip Technology
-
TPS22995RZFR
Texas Instruments
-
TPS22975DSGR
Texas Instruments
-
SIP32510DT-T1-GE3
Vishay Siliconix
-
ULN2003D1013TR
STMicroelectronics
-
MIC2005A-1YM5-TR
Microchip Technology
-
MIC2005A-1YM6-TR
Microchip Technology
-
TPS22916BYFPR
Texas Instruments
-
TPS22917DBVR
Texas Instruments
-
ULN2003APWR
Texas Instruments
Tech Hub
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
