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Diodes Incorporated AP1212HSG-13
- Part No.:
- AP1212HSG-13
- Manufacturer:
- Diodes Incorporated
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AP1212HSG-13.pdf
- Description:
- IC PWR SWITCH N-CHANNEL 1:2 8SOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,826
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Product details
Overview
AP1212HSG-13 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 continuous current per channel, features 110mΩ typical RDS(ON), 1.25A short-circuit current limit, and 1ms soft-start turn-on to suppress inrush-induced voltage droop.
For engineers reviewing the AP1212HSG-13 datasheet, AP1212HSG-13 pinout, AP1212HSG-13 application, or AP1212HSG-13 equivalent, key selection criteria include USB-compliant current limiting, independent open-drain fault flags per channel, thermal shutdown with 10°C hysteresis, UVLO at 2.4V, and SOP-8L package compatibility with 3.3V/5V logic enables.
Technical Context
The AP1212HSG-13 integrates two N-channel MOSFET high-side switches with internal charge pumps, enabling operation from 2.7V–5.5V input while maintaining low on-resistance. Each channel includes dedicated current-limit sensing, thermal shutdown detection, and UVLO circuitry - all feeding into independent open-drain FLG pins.
Its enable inputs are logic-compatible (active-high for H-suffix), with threshold voltages of 0.8V (low) and 2.4V (high) at 25°C. The device implements soft-start via controlled gate ramping (1ms rise time), preventing upstream supply sag during hot-plug events in USB host applications.
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 |
| RDS(ON) (Typ.) | 110mΩ at VIN = 5V - limits voltage drop to ≤55mV at 500mA, satisfying USB spec <600mV drop |
| Short-Circuit Current Limit | 1.25A maximum - provides robust fault protection while staying below UL 25VA safety threshold |
| UVLO Threshold | 2.4V typical rising - prevents erratic switching during brown-out or weak supply conditions |
| Thermal Shutdown | 140°C trip / 130°C release - protects against sustained overload with 10°C hysteresis to avoid oscillation |
| Enable Logic Polarity | Active-high (H suffix) - simplifies interface with USB controller GPIOs without inverters |
Pinout & Package
SOP-8L surface-mount package (4.9mm × 6.0mm × 1.75mm), RoHS-compliant, green molding compound, lead-free finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (EN1) | Channel 1 Enable Input | Active-high logic control; must be driven - not floated - to prevent unintended turn-on |
| 2 (FLG1) | Channel 1 Fault Flag Output | Open-drain, active-low signal indicating overcurrent, UVLO, or thermal shutdown |
| 3 (EN2) | Channel 2 Enable Input | Independent active-high control for second USB port; enables true dual-port autonomy |
| 4 (FLG2) | Channel 2 Fault Flag Output | Separate open-drain flag allows per-port fault isolation in multi-port hub designs |
| 5 (GND) | Power and Signal Ground | Common return path for internal circuitry, MOSFET sources, and flag pull-ups |
| 6 (OUT2) | Channel 2 Switch Output | Source terminal of second N-MOSFET; connects directly to downstream USB VBUS line |
| 7 (OUT1) | Channel 1 Switch Output | Source terminal of first N-MOSFET; powers first downstream USB port independently |
| 8 (IN) | Supply Input | Drain terminal of both MOSFETs and IC power rail; connects to upstream 3.3V/5V source |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent high-side switches | Enables concurrent, isolated power control for two USB ports without cross-talk or shared fault propagation |
| 1ms soft-start with controlled rise time | Eliminates >100mA inrush spikes that cause upstream voltage droop in bus-powered hubs |
| Per-channel open-drain fault flags | Allows microcontroller to identify which port triggered overcurrent or thermal shutdown without additional sensing |
| Thermal shutdown with 10°C hysteresis | Prevents latch-up during transient overload; ensures safe recovery before re-enabling |
| UVLO at 2.4V with hysteresis | Guarantees clean power-up sequencing and avoids partial-enable states during supply ramp |
Applications
| USB 2.0 Hub Power Management | Bus-Powered Peripheral Dock |
|---|---|
Use Scenario: A 4-port USB 2.0 hub draws power from host PC's USB port and must distribute regulated 5V to each downstream device. IC Role / Device Role / Timing Role: Dual high-side switch providing independent port power control, inrush limiting, and per-port fault reporting to hub controller. Use Value: Ensures compliance with USB 2.0 power budget (500mA/port), prevents host port reset due to overcurrent, and enables graceful port disable on fault. |
Use Scenario: A compact docking station supplies power to keyboard, mouse, and flash drive from single upstream USB-A port. IC Role / Device Role / Timing Role: High-side power gate managing hot-plug sequencing and isolating faults across multiple peripherals sharing one upstream source. Use Value: Enables individual port reset without cycling entire dock; soft-start avoids disrupting host enumeration during plug-in. |
| Battery-Powered USB Host | Industrial USB I/O Module |
Use Scenario: Portable medical scanner uses Li-ion battery (3.7V nominal) and requires USB OTG host capability to connect peripherals. IC Role / Device Role / Timing Role: Dual high-side switch boosting effective output voltage margin and enforcing strict current limits under varying battery discharge. Use Value: Maintains stable 5V output via external boost converter + AP1212HSG-13 regulation; UVLO prevents operation below safe battery voltage. |
Use Scenario: DIN-rail mounted PLC module adds USB connectivity for configuration and firmware updates in factory automation. IC Role / Device Role / Timing Role: Robust power switch handling ESD-prone industrial environments, with thermal shutdown protecting against enclosure overheating. Use Value: Withstands 125°C ambient per spec; open-drain flags interface directly with 24V PLC logic via pull-up; SOP-8L supports conformal coating. |
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 limit, WLCSP-12 package | Requires two units for dual-port use; smaller footprint but no integrated dual-channel coordination | Preferred when board space is critical and per-port control timing alignment is not required |
| AP2156WM-7 | Dual-channel, 2.7–5.5V, 1.5A limit, same SOP-8L package, enhanced ESD (±8kV HBM) | Direct functional upgrade with higher current limit and improved robustness; pinout compatible with AP1212H | Recommended for new designs requiring longer product lifecycle and higher reliability in harsh environments |
Compared with AP1212HSG-13, AP2146WU-7 increases per-channel current capacity but sacrifices integration density and dual-channel synchronization, while AP2156WM-7 retains identical pinout and form factor while upgrading current limit, ESD rating, and thermal performance - making it the direct migration path.
Availability
AP1212HSG-13 is available at Aetrix Electronics and suitable for USB hub power management, bus-powered peripheral docks, and industrial USB I/O modules requiring stable component supply and long-term obsolescence support.
Supply support for AP1212HSG-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 power management, signal integrity, and protection solutions for consumer, industrial, and computing markets.
The AP1212 series belongs to Diodes' USB power switch product line, engineered specifically for compliance with USB 2.0 power delivery requirements - emphasizing low RDS(ON), precise current limiting, and per-port fault visibility in compact packages.
FAQ
What does the "H" in AP1212HSG-13 indicate?
The "H" suffix denotes active-high enable logic: EN1 and EN2 are asserted high (≥2.4V) to turn on respective channels. This eliminates need for external inverters when interfacing with standard GPIOs. The "S" indicates SOP-8L package, "G" confirms green (halogen-free) molding compound, and "-13" specifies 2500-unit tape-and-reel packaging.
Can AP1212HSG-13 drive loads above 500mA continuously?
No - its guaranteed minimum continuous current is 500mA per channel under specified conditions (TA = 25°C, VIN = 5V). At elevated ambient temperatures or lower input voltage, derating applies; maximum short-circuit limit is 1.25A, but sustained operation above 500mA risks thermal shutdown due to power dissipation in the 110mΩ RDS(ON).
How does the fault flag behave during thermal shutdown?
During thermal shutdown, both FLG1 and FLG2 are actively pulled low (open-drain), identical to overcurrent or UVLO conditions. The flag remains low until junction temperature falls below 130°C (10°C hysteresis), at which point the MOSFETs re-enable only if EN remains high and VIN is valid - no external reset is required.
Is AP1212HSG-13 suitable for USB-C applications?
No - it is designed exclusively for USB 2.0 Type-A downstream ports operating at 5V. It lacks support for USB-C power delivery negotiation (PD), variable voltage, or CC logic. For USB-C applications, Diodes recommends AP22621 or AP2280x series, which integrate PD controllers and wide-input buck-boost regulators.
AP1212HSG-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- 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
AP1212HSG-13 FAQ
1.How can I place an order for AP1212HSG-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP1212HSG-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 AP1212HSG-13 reliable?
The price and inventory of AP1212HSG-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP1212HSG-13 is usually 5 days.
3.What payment methods are accepted for AP1212HSG-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP1212HSG-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP1212HSG-13?
AP1212HSG-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP1212HSG-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 AP1212HSG-13?
For technical support, including AP1212HSG-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP1212HSG-13 requirements.
6.How does Aetrix verify that AP1212HSG-13 is sourced from the original manufacturer or authorized distributors?
All AP1212HSG-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 AP1212HSG-13 meets industry standards.
7.What is the process for return or replacement of AP1212HSG-13?
All AP1212HSG-13 units undergo pre-shipment inspection (PSI). If there is an issue with AP1212HSG-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 AP1212HSG-13 part is unused and in its original packaging.
Return procedure for AP1212HSG-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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