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Diodes Incorporated DPS1035FIA-13
- Part No.:
- DPS1035FIA-13
- Manufacturer:
- Diodes Incorporated
- Package:
- 17-VFQFN Exposed Pad
- Datasheet:
-
DPS1035FIA-13.pdf
- Description:
- IC PWR SWITCH 1:1 V-QFN4040-17
- Quantity:
- Payment:
- Shipping:
Inventory:1,279
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Product details
Overview
DPS1035FIA-13 from Diodes Incorporated is a 1-channel, 24V/3.5A hot-swap power switch with reverse-voltage protection, integrated 30mΩ MOSFET, programmable input over-voltage threshold (up to 24V), and adjustable output voltage ramp rate via external capacitor. It operates from 4.5V–24V input, features thermal shutdown at +155°C, and is used in USB Type-C® docking stations and AIO PC power rails.
For engineers reviewing the DPS1035FIA-13 datasheet, DPS1035FIA-13 pinout, DPS1035FIA-13 application, or DPS1035FIA-13 equivalent, key selection considerations include its 7ms FAULTB blanking time, bidirectional discharge control (DISC1/DISC2), reverse-voltage protection trigger at –40mV (VIN–VOUT), and V-QFN4040-17 package compatibility with high-density PCB layouts.
Technical Context
The DPS1035FIA-13 implements a unidirectional power switch architecture with analog-programmable fault thresholds: input over-voltage limit set by RVLIM (240kΩ → 24V trip), reverse-voltage detection at –40mV differential, and thermal shutdown at +155°C with +20°C hysteresis. Its internal 30mΩ MOSFET enables low-loss switching up to 3.5A continuous load current.
Start-up behavior is controlled via DV/DT pin: a 1μA internal current source charges an external capacitor to regulate dVOUT/dt, enabling in-rush current limiting; typical ramp time from 0 to 20V is 1.6ms with 10nF. Fault reporting uses open-drain FAULTB with 7ms deglitching before assertion.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4.5V to 24V - supports wide-range industrial and computing supply rails without external regulation. |
| Continuous Output Current | 3.5A - rated for sustained load in USB-C PD sink applications and monitor power delivery. |
| RDS(ON) | 30mΩ (typ.) - minimizes conduction loss (≤2.1W dissipation at 3.5A) and thermal stress in compact layouts. |
| Reverse-Voltage Threshold | –40mV (VIN–VOUT) - blocks backfeed from downstream sources before damage occurs. |
| FAULTB Blanking Time | 7ms (typ.) - prevents false fault assertions during transient events like capacitive load charging. |
| OVP Threshold Range | 6V to 24V - set by external RVLIM resistor (57.6kΩ to 240kΩ), enabling flexible system-level overvoltage coordination. |
| Thermal Shutdown | +155°C with +20°C hysteresis - ensures automatic recovery after cooling, avoiding latch-off in thermally constrained enclosures. |
Pinout & Package
Housed in a 4mm × 4mm, 17-pin V-QFN4040-17 package with exposed thermal pad (SRC), the DPS1035FIA-13 uses a low-profile, RoHS-compliant leadframe with NiPdAu plating and moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3 IN | Power Input Port | Parallel-connected VIN pins reduce trace resistance and improve current sharing for 3.5A operation. |
| 4 EN | Enable Control Input | Active-high logic; must be pulled to ≥1.4V to activate switch; floating prohibited. |
| 6 GND | Signal Ground Reference | Single-point connection point for CVREG, CDV/DT, and RVLIM return paths to minimize noise coupling. |
| 7 VREG | Internal Regulator Output | Supplies 3.3V/5V bias for internal circuitry; requires 0.1μF decoupling to GND. |
| 8, 9 DISC1 / DISC2 | Discharge Control Inputs | Active-high signals enable ~80Ω internal discharge paths on IN or OUT ports for safe hot-plug removal. |
| 10 FAULTB | Open-Drain Fault Indicator | Low-active signal asserted after 7ms deglitch; requires external pull-up for system-level interrupt handling. |
| 12 DV/DT | Ramp Rate Programming Node | 1μA current source charges external capacitor to control dVOUT/dt; sets in-rush current profile. |
| 14 VLIM | OVP Threshold Programming Node | Sinks current proportional to RVLIM value; defines rising/falling OVP trip points (e.g., 240kΩ = 24V). |
| 15, 16, 17 OUT | Power Output Port | Parallel-connected VOUT pins handle full 3.5A load with minimized IR drop and thermal spreading. |
| 18 (EPAD) SRC | Common Source Node | Exposed pad connects to internal MOSFET source; must be isolated from PCB ground and tied to thermal copper only. |
Key Features
| Feature | Design Value |
|---|---|
| Adjustable dV/dt Control | External capacitor on DV/DT pin sets precise output ramp rate (e.g., 10nF → ~1.6ms 0→20V rise), eliminating need for discrete RC networks. |
| Bidirectional Discharge Enable | Dual independent DISC1/DISC2 inputs allow selective or simultaneous discharge of IN/OUT ports-critical for USB-C cable unplug safety. |
| Programmable Input Over-Voltage Protection | RVLIM resistor selects OVP threshold from 6V to 24V with ±0.4V hysteresis, enabling coordination with upstream DC-DC converters. |
| Reverse-Voltage Blocking | Turns OFF internal MOSFET within 2μs when VIN–VOUT falls below –40mV, preventing backfeed into upstream supplies. |
| Fault Reporting with Deglitching | FAULTB asserts only after confirmed fault persists >7ms, rejecting ESD transients and startup surges while retaining fast response to real faults. |
Applications
| USB-C Docking Stations | Desktop All-in-One Power Rails |
|---|---|
|
Use Scenario: Hot-plug insertion of USB-C peripherals into multi-port docks with shared 20V input rail. IC Role / Device Role / Timing Role: Primary power switch controlling 20V/3.5A delivery to downstream Type-C ports with reverse-voltage blocking. Use Value: Prevents backfeed from connected laptops or monitors during plug/unplug, ensuring stable upstream supply integrity. |
Use Scenario: Isolated 12V/3.5A power domain for display interface ICs and USB hubs in AIO PCs. IC Role / Device Role / Timing Role: Hot-swap controller managing in-rush current during system wake-from-sleep transitions. Use Value: Adjustable dV/dt limits peak in-rush to <1.5A, avoiding brownout of main 12V rail during simultaneous peripheral activation. |
| PC Monitor Power Distribution | Residential Gateway Power Management |
|
Use Scenario: 24V input distribution to HDMI/DP port power switches and USB 3.x controllers in smart monitors. IC Role / Device Role / Timing Role: Over-voltage protected power gate between AC-DC adapter and downstream digital subsystems. Use Value: Programmable 24V OVP threshold matches adapter tolerance, eliminating need for external TVS diodes on 24V rail. |
Use Scenario: 12V power sequencing for Wi-Fi SoC, Ethernet PHY, and USB storage in residential gateways. IC Role / Device Role / Timing Role: Fault-aware power switch enabling graceful shutdown during thermal overload or input surge. Use Value: Thermal shutdown + FAULTB signaling allows host MCU to log fault event and initiate controlled power-down sequence. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar hot-swap power switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DPS1135FIA-13 | Pin-compatible successor; improved RDS(ON) (25mΩ typ.), lower quiescent current (2.5mA vs. 4.5mA), same V-QFN4040-17 package. | Direct replacement for new designs; supports higher efficiency and lower thermal rise at 3.5A. | Select DPS1135FIA-13 for new designs requiring extended lifetime and reduced board heating. |
| TPS25942LARVYR | TI part with 4.5V–18V range, 4A rating, and integrated current sensing; lacks reverse-voltage protection and manual discharge control. | Requires external circuitry for reverse-blocking and port discharge; suited for simpler hot-swap where those features are unused. | Choose only if reverse-voltage blocking and dual-port discharge are not required and 18V max input suffices. |
Compared with DPS1035FIA-13, DPS1135FIA-13 offers lower conduction loss and better thermal margin, while TPS25942LARVYR trades reverse-protection and discharge flexibility for current monitoring capability-making DPS1035FIA-13 optimal where USB-C compliance and safe hot-plug are mandatory.
Availability
DPS1035FIA-13 is available at Aetrix Electronics and suitable for USB-C docking stations, desktop all-in-one PCs, and PC monitor power distribution requiring stable component supply despite its obsolete status-inventory remains accessible for legacy design support and repair programs.
Supply support for DPS1035FIA-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 ICs, specializing in power management, signal integrity, and protection solutions for computing, consumer, and industrial markets.
The DPS1035FIA-13 belongs to Diodes' DPS family of hot-swap power switches, engineered specifically for USB Type-C® and high-reliability hot-plug applications demanding reverse-voltage blocking, programmable OVP, and controlled in-rush current.
FAQ
Is DPS1035FIA-13 still in production?
No-DPS1035FIA-13 is officially obsolete per Diodes' documentation (DS38925 Rev. 8-4). It has been superseded by DPS1135FIA-13. However, Aetrix Electronics maintains limited legacy inventory for repair, maintenance, and end-of-life design continuity under controlled allocation.
What is the function of the SRC (exposed pad) pin?
The SRC pad is the common source node of the internal MOSFET-not a ground connection. It must be isolated from PCB signal and power ground planes and connected only to a dedicated thermal copper area with vias for heat dissipation. Connecting it to GND creates a short circuit and device failure.
How is the 7ms FAULTB blanking time implemented?
The 7ms blanking window is an internal hardware timer activated upon detection of any fault condition (OVP, RVP, OTP). FAULTB remains high until the fault persists beyond this period, preventing false triggers from transient events like COUT charging or ESD pulses-no external components are required.
Can DPS1035FIA-13 be used in automotive applications?
No-DPS1035FIA-13 is not AEC-Q100 qualified. Diodes explicitly states that automotive-grade variants require separate qualification, PPAP capability, and IATF 16949 manufacturing. This part is intended for commercial computing and consumer electronics only.
DPS1035FIA-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- 17-VFQFN Exposed Pad
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Switch Type:
- USB Switch
- Number of Outputs:
- 1
- Ratio - Input:Output:
- 1:1
- Output Configuration:
- -
- Output Type:
- -
- Interface:
- On/Off
- Voltage - Load:
- 4.5V ~ 24V
- Voltage - Supply (Vcc/Vdd):
- -
- Current - Output (Max):
- 3.5A
- Rds On (Typ):
- 30mOhm
- Input Type:
- -
- Features:
- Load Discharge, Status Flag
- Fault Protection:
- Over Temperature, Over Voltage, Reverse Current, UVLO
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- V-QFN4040-17
DPS1035FIA-13 FAQ
1.How can I place an order for DPS1035FIA-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for DPS1035FIA-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 DPS1035FIA-13 reliable?
The price and inventory of DPS1035FIA-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DPS1035FIA-13 is usually 5 days.
3.What payment methods are accepted for DPS1035FIA-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DPS1035FIA-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DPS1035FIA-13?
DPS1035FIA-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DPS1035FIA-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 DPS1035FIA-13?
For technical support, including DPS1035FIA-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DPS1035FIA-13 requirements.
6.How does Aetrix verify that DPS1035FIA-13 is sourced from the original manufacturer or authorized distributors?
All DPS1035FIA-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 DPS1035FIA-13 meets industry standards.
7.What is the process for return or replacement of DPS1035FIA-13?
All DPS1035FIA-13 units undergo pre-shipment inspection (PSI). If there is an issue with DPS1035FIA-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 DPS1035FIA-13 part is unused and in its original packaging.
Return procedure for DPS1035FIA-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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