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Toshiba Semiconductor and Storage DCL541A01(T,E
- Part No.:
- DCL541A01(T,E
- Manufacturer:
- Toshiba Semiconductor and Storage
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
DCL541A01(T,E.pdf
- Description:
- 4-CH (3:1) HIGH SPEED DIGITAL IS
- Quantity:
- Payment:
- Shipping:
Inventory:1,446
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Product details
Overview
DCL541A01 from Toshiba Electronic Devices & Storage Corporation is a high-speed quad-channel digital isolator using magnetic coupling and CMOS technology, delivering 150 Mbps data rate, 10.9 ns typical propagation delay at 5 V, 150 kV/μs CMTI, and 5 kVrms withstand isolation voltage. It operates across -40 °C to 110 °C with dual 2.25–5.5 V supplies and supports industrial motor control and inverter gate drive signal isolation.
For engineers reviewing the DCL541A01 datasheet, DCL541A01 pinout, DCL541A01 application, or DCL541A01 equivalent, this page provides verified technical context, package-validated pin functions, real-world application mappings, and two confirmed alternative parts for functional replacement in isolated I/O and power interface designs.
Technical Context
The DCL541A01 implements input-disable logic (DIS1/DIS2) on both sides - DISx high disables corresponding side inputs, while low or open enables normal operation. Its default output state is low, distinguishing it from DCL541B01 (default high), and enabling fail-safe behavior in unpowered or faulted conditions.
It features galvanic isolation via on-chip magnetic coupling, certified to UL 1577 (5 kVrms), VDE V 0884-17, CQC GB 4943.1-2022, and CSA standards. The 16-pin SOIC wide-body package provides 8 mm creepage/clearance and 17 μm internal DTI for reinforced insulation in AC/DC power systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data Rate | 150 Mbps - supports high-frequency PWM, encoder, and serial bus isolation without timing bottlenecks |
| Propagation Delay | 10.9 ns (typ. at 5 V) - enables sub-20 ns channel-to-channel timing alignment in real-time control loops |
| CMTI | 150 kV/μs (typ.) - rejects fast transients from IGBT/SiC switching noise in motor drives and inverters |
| Isolation Voltage | 5000 Vrms - meets reinforced insulation requirements for 600 VAC mains-connected equipment per IEC 61800-5-1 |
| Supply Range | 2.25–5.5 V per side - allows direct interfacing with 3.3 V microcontrollers and 5 V gate drivers without level-shifting |
| Default Output | Low - ensures safe shutdown of downstream logic or gate drivers during power-up, brownout, or disable states |
| Operating Temp | -40 °C to +110 °C - qualified for under-hood automotive and industrial ambient environments |
Pinout & Package
Package: 16-pin SOIC wide-body (7.5 mm body width, 10.3 mm length), RoHS-compliant, creepage/clearance ≥ 8 mm, DTI = 17 μm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD1 | Power supply, side 1 (input side) | Supplies primary-side logic; UVLO threshold 2.1–2.25 V rising, 1.7–1.9 V falling |
| GND1 | GND connection for VDD1 | Reference for input-side signals; requires local 0.1 μF decoupling to VDD1 |
| VI1–VI4 | Input channels 1–4 (side 1) | CMOS-compatible digital inputs; VIH = 0.7×VDD1, VIL = 0.3×VDD1 |
| DIS1 | Input disable control (side 1) | High = disables all VI1–VI4; low/open = enables - used for system-level safety shutdown |
| GND2 | GND connection for VDD2 | Reference for output-side signals; requires local 0.1 μF decoupling to VDD2 |
| DIS2 | Input disable control (side 2) | High = disables all VO1–VO4 outputs; low/open = enables - supports bidirectional disable coordination |
| VO1–VO4 | Output channels 1–4 (side 2) | CMOS outputs with 50 Ω impedance; VOL ≤ 0.4 V @ 4 mA, VOH ≥ VDD2−0.4 V @ −4 mA |
| VDD2 | Power supply, side 2 (output side) | Independent supply for isolated output domain; supports mixed-voltage system partitioning |
Key Features
| Feature | Design Value |
|---|---|
| Input-disable architecture | DIS1/DIS2 pins provide deterministic, low-latency channel disable without affecting power domains |
| Fail-safe default output | Low-default output ensures downstream circuits remain de-asserted during startup, fault, or loss of VDD2 |
| High CMTI immunity | 150 kV/μs common-mode transient rejection maintains signal integrity near high-dV/dt SiC/IGBT switches |
| Reinforced insulation certification | UL, VDE, CQC, and CSA approvals confirm suitability for functional safety applications up to 600 VAC working voltage |
| Wide dual-supply operation | 2.25–5.5 V on each side enables interoperability with legacy 5 V logic and modern 3.3 V/2.5 V controllers |
Applications
| Motor Control Feedback Isolation | Inverter Gate Drive Interface |
|---|---|
Use Scenario: Isolating encoder A/B/Z signals and resolver feedback from MCU in servo drives. IC Role / Device Role / Timing Role: Quad-channel isolator routing four differential feedback paths across isolation barrier with matched propagation delay. Use Value: 3.2 ns channel-matching (same-direction) preserves phase accuracy in position estimation algorithms. |
Use Scenario: Transmitting PWM signals from controller to isolated gate drivers in 3-phase IGBT/SiC inverters. IC Role / Device Role / Timing Role: High-speed, low-skew isolation of complementary high-side/low-side gate signals with synchronized enable/disable. Use Value: 10.9 ns propagation delay and 2.8 ns pulse-width distortion ensure precise dead-time control and minimize shoot-through risk. |
| Industrial PLC Digital I/O Module | Switching Power Supply Monitoring |
Use Scenario: Providing isolated 24 V DC input sensing and 24 V relay output control in modular PLC backplanes. IC Role / Device Role / Timing Role: Bidirectional isolation of status and command signals between field-side and controller-side PCBs. Use Value: DIS1/DIS2 support coordinated module hot-swap and diagnostics without disrupting adjacent channels. |
Use Scenario: Isolating overvoltage, overcurrent, and thermal fault signals from primary-side power stage to secondary-side supervisor MCU. IC Role / Device Role / Timing Role: Reliable transmission of fast-acting protection signals across isolation barrier with fail-safe low-default output. Use Value: Low-default output guarantees fault latch remains asserted if VDD2 fails or DIS2 is activated during overload events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital isolator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Silicon Labs SI8641ED-B-IS | Pin-compatible 16-pin SOIC; 150 Mbps; default output configurable via pin strap; CMTI = 80 kV/μs | Lacks DISx control; relies on external logic for disable functionality | Choose when board layout reuse is critical and DISx is not required; verify lower CMTI suffices for target EMI environment |
| Analog Devices ADUM2401ARWZ | 16-pin SOIC; 100 Mbps; default output low; CMTI = 25 kV/μs; 2.7–5.5 V supply | Lower speed and CMTI; no DISx pins; UL/VDE certified but lower isolation rating (3.75 kVrms) | Acceptable for cost-sensitive, non-SiC inverter applications where 100 Mbps and 25 kV/μs meet design margins |
Compared with DCL541A01, SI8641ED-B-IS offers identical footprint and speed but reduced noise immunity and no native disable control, while ADUM2401ARWZ trades performance for broader legacy compatibility and lower cost in less demanding isolation zones.
Availability
DCL541A01 is available at Aetrix Electronics and suitable for industrial automation systems, motor control drives, and switching power supply monitoring requiring stable component supply, long-term lifecycle assurance, and certified reinforced isolation.
Supply support for DCL541A01 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
Toshiba Electronic Devices & Storage Corporation designs high-reliability semiconductor solutions for industrial, automotive, and energy infrastructure applications, with deep expertise in isolation, power devices, and analog ICs.
The DCL54xx01 family targets high-noise industrial power conversion and motion control systems, emphasizing robust CMTI, fail-safe defaults, and multi-standard safety certification for functional safety compliance.
FAQ
What is the default output state of the DCL541A01?
The DCL541A01 has a low-default output state, meaning all four output channels (VO1–VO4) drive low when input-side power (VDD1) is absent, DIS1 is high, or VDD2 is unpowered. This behavior is explicitly defined in the functional description section of the datasheet and distinguishes DCL541A01 from DCL541B01 (high-default). The low-default ensures fail-safe operation in motor control and power supply fault detection circuits.
Does the DCL541A01 support independent supply voltages on each side?
Yes, the DCL541A01 supports fully independent 2.25–5.5 V supplies on VDD1 (input side) and VDD2 (output side), enabling mixed-voltage system design - for example, interfacing a 3.3 V MCU to a 5 V gate driver. The datasheet specifies separate recommended operating conditions and electrical characteristics for each supply domain, and UVLO thresholds are independently monitored per side.
How does the DIS1 and DIS2 functionality work in the DCL541A01?
In the DCL541A01, DIS1 (pin 7) disables all input channels (VI1–VI4) when driven high; DIS2 (pin 10) disables all output channels (VO1–VO4) when driven high. Both pins default to enabled when left open or pulled low. This architecture allows system-level fault containment - e.g., asserting DIS1 during MCU reset prevents spurious signals from crossing the barrier until firmware initializes.
What safety certifications apply to the DCL541A01?
The DCL541A01 is certified to UL 1577 (File No. E519997), cUL CSA Component Acceptance (No. 5A, File E519997), VDE DIN EN IEC 60747-17 (Certificate No. 40055132), and CQC GB 4943.1-2022 (Certificate No. CQC22001345018). These cover 5000 Vrms withstand voltage and reinforce its use in Class I/II equipment with working voltages up to 600 VAC.
Can the DCL541A01 be used in SiC or GaN-based inverter designs?
Yes, the DCL541A01 is suitable for SiC/GaN inverter designs due to its 150 kV/μs typical CMTI rating and 150 Mbps data rate - both exceeding requirements for fast-switching topologies. Its 10.9 ns propagation delay and 3.6 ns opposing-direction channel matching help maintain tight timing control in high-frequency gate drive circuits, and its reinforced insulation meets IEC 61800-5-1 for drives up to 1000 VDC bus.
DCL541A01(T,E Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Toshiba Semiconductor and Storage
- Series:
- DCL541x01
- Package/Case:
- 16-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Magnetic Coupling
- Type:
- General Purpose
- Isolated Power:
- Yes
- Number of Channels:
- 4
- Inputs - Side 1/Side 2:
- 3/1
- Channel Type:
- Unidirectional
- Voltage - Isolation:
- 5000Vrms
- Common Mode Transient Immunity (Min):
- 100kV/µs
- Data Rate:
- 150Mbps
- Propagation Delay tpLH / tpHL (Max):
- 18.3ns, 18.3ns
- Pulse Width Distortion (Max):
- 2.8ns
- Rise / Fall Time (Typ):
- 0.9ns, 0.9ns
- Voltage - Supply:
- 2.25V ~ 5.5V
- Grade:
- -
- Qualification:
- -
- Operating Temperature:
- -40°C ~ 110°C
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
DCL541A01(T,E FAQ
1.How can I place an order for DCL541A01(T,E through Aetrix?
Please submit a Request for Quotation (RFQ) for DCL541A01(T,E 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 DCL541A01(T,E reliable?
The price and inventory of DCL541A01(T,E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DCL541A01(T,E is usually 5 days.
3.What payment methods are accepted for DCL541A01(T,E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DCL541A01(T,E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DCL541A01(T,E?
DCL541A01(T,E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DCL541A01(T,E 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 DCL541A01(T,E?
For technical support, including DCL541A01(T,E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DCL541A01(T,E requirements.
6.How does Aetrix verify that DCL541A01(T,E is sourced from the original manufacturer or authorized distributors?
All DCL541A01(T,E 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 DCL541A01(T,E meets industry standards.
7.What is the process for return or replacement of DCL541A01(T,E?
All DCL541A01(T,E units undergo pre-shipment inspection (PSI). If there is an issue with DCL541A01(T,E, 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 DCL541A01(T,E part is unused and in its original packaging.
Return procedure for DCL541A01(T,E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DCL541A01(T,E Tags
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ISO1212DBQR
Texas Instruments
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ISO6721BDR
Texas Instruments
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SI8710AC-B-ISR
Skyworks Solutions Inc.
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ISO7720FDR
Texas Instruments
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ISO7721DR
Texas Instruments
-
ISO7721FDR
Texas Instruments
-
SI8710CC-B-ISR
Skyworks Solutions Inc.
-
ISO6741FQDWRQ1
Texas Instruments
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ISO7721DWVR
Texas Instruments
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ISO7762FDBQR
Texas Instruments
-
ISO7741DWR
Texas Instruments
-
ISO7741FDWR
Texas Instruments
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