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Vishay Siliconix DG2521DV-T1-E3
- Part No.:
- DG2521DV-T1-E3
- Manufacturer:
- Vishay Siliconix
- Package:
- SOT-23-6 Thin, TSOT-23-6
- Datasheet:
-
DG2521DV-T1-E3.pdf
- Description:
- IC SWITCH SPDT X 1 800MOHM 6TSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,097
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Product details
Overview
DG2521DV-T1-E3 from Vishay Siliconix is a low-voltage, single-pole/double-throw (SPDT) analog switch with overcurrent protection, designed for 1.8 V to 5.5 V single-supply operation. It delivers 0.4 Ω typical on-resistance at 4.5 V, 1.6 V logic compatibility, and make-before-break switching-enabling high-fidelity USB/UART and audio signal routing in portable electronics.
For engineers reviewing the DG2521DV-T1-E3 datasheet, DG2521DV-T1-E3 pinout, DG2521DV-T1-E3 application, or DG2521DV-T1-E3 equivalent, key selection criteria include its 12 ns typical turn-on time at 4.5 V, ±50 mA continuous current rating, 40 MHz –3 dB bandwidth, and TSOP-6 package suitability for space-constrained PCB layouts.
Technical Context
The DG2521DV-T1-E3 implements a CMOS-based SPDT switch architecture with integrated overcurrent protection that activates at ~0.6 V across the channel, limiting sustained short-circuit current to ~1.7 A. Its make-before-break timing (1–12 ns) ensures transient continuity during signal path transitions.
It operates across –40 °C to +85 °C with rail-to-rail analog signal swing (0 V to V+), 0.06 Ω typical on-resistance matching between NO/NC paths, and <224 pC charge injection-critical for minimizing glitch-induced distortion in precision analog routing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.8 V to 5.5 V - supports direct interface with Li-ion battery rails and 3.3 V/5 V logic domains |
| On-Resistance (rON) | 0.4 Ω typical at V+ = 4.5 V - minimizes insertion loss and voltage drop in low-voltage signal paths |
| Turn-On Time (tON) | 12 ns typical at V+ = 4.5 V - enables fast switching for USB 1.1/2.0 data lines and audio multiplexing |
| Make-Before-Break Time (tmbb) | 1–12 ns - prevents signal interruption during path selection in audio/video routing |
| Overcurrent Threshold | ~0.6 V channel voltage drop - triggers pulsed shutdown (on <1 µs, off 5 ms) under short-circuit conditions |
| –3 dB Bandwidth | 40 MHz - supports full-speed USB (12 Mbps) and composite video signal integrity |
| Logic Compatibility | +1.6 V input threshold - ensures reliable control from 1.8 V I/O microcontrollers without level shifting |
Pinout & Package
Package: TSOP-6 (Thin Small Outline Package, 1.6 mm × 2.9 mm, 0.65 mm pitch), lead (Pb)-free with matte tin terminations (E3 suffix).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - IN | Digital control input | Active-high logic signal enabling NO path (IN = 1) or NC path (IN = 0); compatible with 1.6 V min logic high |
| 2 - NO | Normally open switch terminal | Connects to COM only when IN = 1; rated for ±50 mA continuous analog current |
| 3 - NC | Normally closed switch terminal | Connects to COM only when IN = 0; matched rON and flatness with NO path |
| 4 - V+ | Positive supply rail | Single power rail (1.8–5.5 V); powers internal logic and analog switch core |
| 5 - GND | Ground reference | Analog and digital common return; required for proper overcurrent detection and leakage control |
| 6 - COM | Common analog terminal | Shared I/O node routed to NO or NC; supports rail-to-rail signal swing (0 V to V+) |
Key Features
| Feature | Design Value |
|---|---|
| Sub-Ω on-resistance | 0.4 Ω typical at 4.5 V - reduces thermal drift and THD in audio paths and preserves USB signal eye margin |
| Integrated overcurrent protection | Self-resetting pulsed shutdown (1 µs on / 5 ms off) - eliminates need for external fuses or current-sense ICs in portable designs |
| Matched channel performance | 0.06 Ω rON mismatch and 0.2 Ω rON flatness - ensures consistent gain and phase response across NO/NC paths |
| Low charge injection | 224 pC typical - limits voltage glitch on COM during switching, critical for sample-and-hold and ADC front-end applications |
| TSOP-6 footprint | 1.6 mm × 2.9 mm, 0.65 mm pitch - enables high-density layout in smartphones, wearables, and USB-C accessories |
Applications
| USB 2.0 Data Line Switching | Portable Audio Multiplexing |
|---|---|
Use Scenario: Routing USB D+/D− signals between host controller and dual USB peripherals (e.g., OTG mode in smartphones). IC Role / Device Role / Timing Role: SPDT analog switch providing make-before-break path continuity during USB enumeration handshakes. Use Value: 40 MHz bandwidth and <12 ns tON preserve full-speed USB eye diagram integrity; sub-Ω rON avoids signal attenuation beyond USB spec limits. | Use Scenario: Selecting between stereo headphone output and mono speaker output in media players. IC Role / Device Role / Timing Role: Low-distortion analog switch enabling seamless audio path reconfiguration without audible click/pop. Use Value: 0.06 Ω rON matching and <224 pC charge injection minimize inter-channel crosstalk and switching transients in 16-bit audio paths. |
| Cellular Baseband Signal Routing | PCMCIA/CardBus Interface Switching |
Use Scenario: Isolating RF transceiver I/Q lines from baseband processor during sleep mode in 3G/4G modems. IC Role / Device Role / Timing Role: Low-leakage (±20 nA) SPDT switch disconnecting sensitive analog nodes while maintaining bias stability. Use Value: <20 nA off-state leakage prevents DC offset drift in mixer inputs; 1.6 V logic compatibility allows direct control from modem's 1.8 V GPIO. | Use Scenario: Enabling/disabling legacy PCMCIA slot signaling (VCC, RESET, IORDY) in industrial embedded controllers. IC Role / Device Role / Timing Role: Robust analog switch handling 3.3 V/5 V mixed-signaling with overcurrent fault containment. Use Value: Integrated 1.7 A overcurrent protection safeguards host controller from card-insertion surge events; TSOP-6 fits tight connector-side PCB real estate. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SPDT analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4677EUT+T | Higher rON (0.8 Ω typ), no overcurrent protection, SOT-23-6 package | Lacks fault resilience; requires external current limiting for short-circuit-prone interfaces | Select when cost sensitivity outweighs protection needs and board space permits larger SOT-23 footprint |
| ADG774ACRMZ-REEL | 0.5 Ω rON, 1.8 V logic compatible, but break-before-make (not make-before-break) | Introduces brief signal interruption during switching-unsuitable for live USB/audio handshakes | Prefer for DC-coupled sensor multiplexing where transient gaps are acceptable |
Compared with MAX4677EUT+T and ADG774ACRMZ-REEL, DG2521DV-T1-E3 uniquely combines make-before-break timing, integrated overcurrent protection, and sub-Ω rON in a 1.6 mm × 2.9 mm TSOP-6-making it optimal for fault-tolerant, high-bandwidth portable signal routing where continuity and robustness are mandatory.
Availability
DG2521DV-T1-E3 is available at Aetrix Electronics and suitable for USB/UART signal switching, portable audio multiplexing, and cellular baseband routing requiring stable component supply across consumer, industrial, and medical device programs.
Supply support for DG2521DV-T1-E3 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
Vishay Siliconix is a global semiconductor manufacturer specializing in discrete MOSFETs, diodes, optoelectronics, and analog switches, with emphasis on high-reliability, lead-free packaging.
The DG2521DV-T1-E3 belongs to Vishay's sub-Ω analog switch product line, engineered specifically for low-voltage, high-fidelity signal routing in battery-powered portable electronics where size, power, and fault tolerance are critical.
FAQ
What is the maximum continuous current rating for DG2521DV-T1-E3?
The DG2521DV-T1-E3 supports ±50 mA continuous current per terminal (NO, NC, COM) under normal operating conditions. This rating is validated across the full –40 °C to +85 °C temperature range and aligns with its 0.4 Ω typical on-resistance at 4.5 V, ensuring minimal self-heating during sustained conduction. Exceeding this limit may trigger the overcurrent protection circuit.
Does DG2521DV-T1-E3 support rail-to-rail analog signal operation?
Yes, DG2521DV-T1-E3 supports full rail-to-rail analog signal swing from 0 V to V+, verified across its entire 1.8 V to 5.5 V supply range. This capability is enabled by its CMOS process design and internal level-shifting, allowing signals to reach both supply rails without clipping-essential for audio line drivers and USB differential pair routing where headroom preservation is critical.
How does the overcurrent protection in DG2521DV-T1-E3 behave during a sustained short circuit?
During a sustained short circuit, DG2521DV-T1-E3 enters a pulsed shutdown mode: it turns on for less than 1 µs, then turns off for ~5 ms before attempting reactivation. If the fault persists, this cycle repeats continuously. The protection activates when the voltage drop across the conducting channel reaches ~0.6 V, corresponding to ~1.7 A peak current-providing self-limiting behavior without external components.
Is DG2521DV-T1-E3 pin-compatible with DG2520DV-T1-E3?
No, DG2521DV-T1-E3 is not pin-compatible with DG2520DV-T1-E3. While both share the same TSOP-6 package and pinout (IN, NO, NC, V+, GND, COM), they differ functionally: DG2521DV-T1-E3 implements make-before-break switching, whereas DG2520DV-T1-E3 uses break-before-make. Swapping them may cause signal interruption or bus contention in timing-sensitive applications like USB handshaking.
What is the logic voltage threshold for reliable operation of DG2521DV-T1-E3?
DG2521DV-T1-E3 guarantees reliable logic recognition with a minimum input high voltage (VINH) of 1.8 V at V+ = 3 V and 2.4 V at V+ = 5 V, making it +1.6 V logic compatible across its full supply range. This allows direct interfacing with 1.8 V microcontroller GPIOs without level shifters, while maintaining noise margins >0.4 V under worst-case process/voltage/temperature conditions.
DG2521DV-T1-E3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay Siliconix
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Switch Circuit:
- SPDT
- Multiplexer/Demultiplexer Circuit:
- 2:1
- Number of Circuits:
- 1
- On-State Resistance (Max):
- 800mOhm
- Channel-to-Channel Matching (ΔRon):
- 60mOhm (Max)
- Voltage - Supply, Single (V+):
- 1.8V ~ 5.5V
- Voltage - Supply, Dual (V±):
- -
- Switch Time (Ton, Toff) (Max):
- 25ns, 35ns
- -3db Bandwidth:
- 40MHz
- Charge Injection:
- 224pC
- Channel Capacitance (CS(off), CD(off)):
- 50pF
- Current - Leakage (IS(off)) (Max):
- 2nA
- Crosstalk:
- -57dB @ 1MHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-TSOP
DG2521DV-T1-E3 FAQ
1.How can I place an order for DG2521DV-T1-E3 through Aetrix?
Please submit a Request for Quotation (RFQ) for DG2521DV-T1-E3 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 DG2521DV-T1-E3 reliable?
The price and inventory of DG2521DV-T1-E3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG2521DV-T1-E3 is usually 5 days.
3.What payment methods are accepted for DG2521DV-T1-E3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG2521DV-T1-E3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG2521DV-T1-E3?
DG2521DV-T1-E3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG2521DV-T1-E3 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 DG2521DV-T1-E3?
For technical support, including DG2521DV-T1-E3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG2521DV-T1-E3 requirements.
6.How does Aetrix verify that DG2521DV-T1-E3 is sourced from the original manufacturer or authorized distributors?
All DG2521DV-T1-E3 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 DG2521DV-T1-E3 meets industry standards.
7.What is the process for return or replacement of DG2521DV-T1-E3?
All DG2521DV-T1-E3 units undergo pre-shipment inspection (PSI). If there is an issue with DG2521DV-T1-E3, 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 DG2521DV-T1-E3 part is unused and in its original packaging.
Return procedure for DG2521DV-T1-E3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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