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Home > Products > Isolators > Digital Isolators

Toshiba Semiconductor and Storage DCL540H01(T,E

Name: DCL540H01(T,E
Brand: Toshiba Semiconductor and Storage
SKU: DCL540H01(T,E
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: DCL540H01(T,E

Manufacturer:: Toshiba Semiconductor and Storage

Category:: Digital Isolators

Package:: 16-SOIC (0.295", 7.50mm Width)

Datasheet:: DCL540H01(T,E.pdf

Description:: 4-CH (4:0) HIGH SPEED DIGITAL IS

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Product details

Overview

DCL540H01 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 features high-default output logic for industrial motor control and inverter gate drive interfaces.

For engineers reviewing the DCL540H01 datasheet, DCL540H01 pinout, DCL540H01 application, or DCL540H01 equivalent, this page provides verified functional specifications, side-1/side-2 enable-controlled channel behavior, SOIC-16W package layout, safety certifications (UL 1577, VDE 0884-17), and real-world isolation performance metrics critical for IEC 61800-compliant drives and high-noise factory automation systems.

Technical Context

The DCL540H01 implements bidirectional galvanic isolation via on-chip magnetic coupling between two independent power domains (VDD1/VDD2), supporting asymmetric supply operation (e.g., 3.3 V on side-1, 5 V on side-2). Its EN1/EN2 input-enable control pins place respective side inputs into high-impedance state when low, enabling bus sharing and partial system shutdown without signal contention.

Unlike disable-based variants (e.g., DCL541x), the DCL540H01 uses enable logic: EN1 controls side-1 inputs (VI1–VI4), EN2 controls side-2 outputs (VO1–VO4); default output state is logic high when inputs are disabled or unpowered. This architecture supports fail-safe gate driver interfacing where high-side FETs must remain off during controller reset.

Key Specifications

Parameter	Value and Actual Design Meaning
Data Rate	150 Mbps - supports high-frequency PWM feedback loops in servo drives and SiC/GaN inverter controllers
Propagation Delay	10.9 ns typical at 5 V - enables sub-100 ns timing-critical gate drive synchronization
CMTI	150 kV/μs typical - rejects fast transients from motor switching noise in 600 V-class inverters
Isolation Voltage	5000 Vrms - meets reinforced insulation requirements per IEC 61800-5-1 for industrial motor drives
Supply Range	2.25–5.5 V per side - allows direct interface with 3.3 V microcontrollers and 5 V gate drivers
Default Output	High - ensures gate drivers default to OFF state during MCU boot or fault conditions
Operating Temp	-40 °C to 110 °C - qualified for under-hood automotive traction inverter modules and factory-floor PLCs

Pinout & Package

Package: 16-pin SOIC wide-body (7.5 mm body width, 10.3 mm length), creepage/clearance ≥ 8 mm, DTI = 17 μm, CTI = 600 V - certified for reinforced insulation per DIN EN IEC 60747-17 (VDE 0884-17).

Pin/Terminal	Circuit Role	Design Meaning
VDD1	Power supply, side 1	Input-side logic domain supply (2.25–5.5 V); requires local 0.1 μF decoupling to GND1
GND1	Ground, side 1	Reference for VI1–VI4 and EN1; must be separated from GND2 by isolation barrier
VI1–VI4	Input channels 1–4	CMOS-compatible digital inputs referenced to VDD1/GND1; accept 0–VDD1 logic levels
EN1	Input enable 1	Active-high enable for VI1–VI4; low or open disables inputs, placing them in high-Z
GND2	Ground, side 2	Reference for VO1–VO4 and EN2; isolated from GND1 by internal magnetic barrier
EN2	Input enable 2	Active-high enable for side-2 output drivers; low disables VO1–VO4 (high-Z)
VO1–VO4	Output channels 1–4	CMOS outputs referenced to VDD2/GND2; default high when EN2 is low or VDD2 unpowered
VDD2	Power supply, side 2	Output-side logic/gate driver supply (2.25–5.5 V); requires local 0.1 μF decoupling to GND2

Key Features

Feature	Design Value
Enable-Controlled Isolation	EN1/EN2 pins allow dynamic channel gating without disrupting isolation barrier integrity
Fail-Safe Default State	High-default outputs ensure gate drivers remain de-energized during power sequencing faults
Wide Supply Compatibility	Operates across 2.25–5.5 V on both sides - eliminates level-shifter need in mixed-voltage systems
High CMTI Performance	150 kV/μs immunity prevents false triggering from dV/dt noise in 1200 V SiC inverter half-bridges
Reinforced Insulation Certification	UL 1577, VDE 0884-17, CQC GB 4943.1-2022 - enables single-component isolation in safety-critical drives

Applications

Industrial Motor Drives	Inverter Gate Drive Interface
Use Scenario: Isolating position encoder feedback and PWM command signals between FPGA-based motion controller and three-phase IGBT/SiC inverter module. IC Role / Device Role / Timing Role: Quad-channel isolator providing independent, synchronized isolation for four PWM channels with <11 ns propagation delay matching. Use Value: Enables precise dead-time control and prevents shoot-through by maintaining channel-to-channel skew ≤3.6 ns (opposing direction) at 150 Mbps.	Use Scenario: Interfacing isolated DC-DC converter outputs to high-side and low-side gate drivers in a 600 V solar string inverter H-bridge. IC Role / Device Role / Timing Role: Side-2 outputs drive gate driver inputs; EN2 allows coordinated shutdown of all four gate paths during overcurrent fault. Use Value: High-default output ensures all gates turn OFF during controller reset or brownout, meeting IEC 62109 anti-islanding safety requirements.
Programmable Logic Controller I/O	Factory Automation Data Acquisition
Use Scenario: Isolating 24 V digital input signals from field sensors (limit switches, photoelectric sensors) to 3.3 V PLC CPU backplane. IC Role / Device Role / Timing Role: Input-side (VDD1=24 V logic via level-shifted interface) receives sensor signals; output-side (VDD2=3.3 V) feeds microcontroller GPIOs. Use Value: 5 kVrms isolation withstand and 150 kV/μs CMTI prevent ground-loop-induced resets in electrically noisy assembly lines.	Use Scenario: Transmitting high-speed analog-to-digital converter (ADC) status flags and trigger pulses from isolated sensor front-end to host processor across noisy factory floor. IC Role / Device Role / Timing Role: Transfers ADC ready, overflow, and sync pulses with deterministic latency (<19.1 ns max at 3.3 V) and minimal jitter. Use Value: 150 Mbps capability supports multi-channel simultaneous sampling triggers without serialization bottlenecks.

Industrial Motor Drives

Inverter Gate Drive Interface

Use Scenario: Isolating position encoder feedback and PWM command signals between FPGA-based motion controller and three-phase IGBT/SiC inverter module.

IC Role / Device Role / Timing Role: Quad-channel isolator providing independent, synchronized isolation for four PWM channels with <11 ns propagation delay matching.

Use Value: Enables precise dead-time control and prevents shoot-through by maintaining channel-to-channel skew ≤3.6 ns (opposing direction) at 150 Mbps.

Use Scenario: Interfacing isolated DC-DC converter outputs to high-side and low-side gate drivers in a 600 V solar string inverter H-bridge.

IC Role / Device Role / Timing Role: Side-2 outputs drive gate driver inputs; EN2 allows coordinated shutdown of all four gate paths during overcurrent fault.

Use Value: High-default output ensures all gates turn OFF during controller reset or brownout, meeting IEC 62109 anti-islanding safety requirements.

Programmable Logic Controller I/O

Factory Automation Data Acquisition

Use Scenario: Isolating 24 V digital input signals from field sensors (limit switches, photoelectric sensors) to 3.3 V PLC CPU backplane.

IC Role / Device Role / Timing Role: Input-side (VDD1=24 V logic via level-shifted interface) receives sensor signals; output-side (VDD2=3.3 V) feeds microcontroller GPIOs.

Use Value: 5 kVrms isolation withstand and 150 kV/μs CMTI prevent ground-loop-induced resets in electrically noisy assembly lines.

Use Scenario: Transmitting high-speed analog-to-digital converter (ADC) status flags and trigger pulses from isolated sensor front-end to host processor across noisy factory floor.

IC Role / Device Role / Timing Role: Transfers ADC ready, overflow, and sync pulses with deterministic latency (<19.1 ns max at 3.3 V) and minimal jitter.

Use Value: 150 Mbps capability supports multi-channel simultaneous sampling triggers without serialization bottlenecks.

Equivalent & Alternatives

The following parts are listed as comparable options for similar quad-channel digital isolator applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
Si8641ED-B-IS	Capacitive isolation; 150 Mbps; 13.5 ns max propagation delay; 3.75 kVrms rating; 2.5–5.5 V supply	Lacks reinforced insulation certification for 600 V+ mains-connected equipment; lower CMTI (75 kV/μs)	Prefer for cost-sensitive consumer-grade motor controllers where UL/VDE reinforced certification is not mandated.
ADUM2401ARWZ	Magnetic isolation; 1 Mbps–25 Mbps range; 35 ns max propagation delay; 5 kVrms; 3.0–5.5 V supply	Insufficient speed for SiC/GaN gate drive timing; no enable/disable control; fixed default-low output	Select only for legacy 25 Mbps industrial I/O where timing margin >20 ns is acceptable and fail-safe high-default is not required.

Compared with Si8641ED-B-IS and ADUM2401ARWZ, the DCL540H01 uniquely combines 150 Mbps speed, high-default logic, EN-controlled tri-state, and VDE-certified reinforced insulation-making it the only option qualified for next-generation 100 kW+ SiC traction inverters requiring both bandwidth and functional safety compliance.

Availability

DCL540H01 is available at Aetrix Electronics and suitable for industrial motor control, inverter gate drive, and programmable logic controller I/O requiring stable component supply across extended temperature and high-noise environments.

Supply support for DCL540H01 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 leadership in power devices, isolation technology, and memory.

The DCL540H01 belongs to Toshiba's DCL54xx01 family of magnetic digital isolators engineered specifically for high-noise industrial automation and motor drive systems demanding reinforced insulation, high CMTI, and fail-safe default states.

FAQ

What is the default output state of the DCL540H01 when EN2 is low?

When EN2 is low, the DCL540H01 places VO1–VO4 into high-impedance state-not the default high output. The high-default behavior occurs only when EN2 is high or open *and* side-2 is powered. The DCL540H01 datasheet explicitly defines its default output as high under normal powered operation with EN2 high/open, distinguishing it from low-default variants like DCL540L01.

Does the DCL540H01 support independent supply voltages on side-1 and side-2?

Yes, the DCL540H01 supports fully independent VDD1 and VDD2 supplies ranging from 2.25 V to 5.5 V each. This allows direct interfacing with 3.3 V microcontrollers on side-1 and 5 V gate drivers on side-2 without external level shifters, as confirmed in Section 8 (Recommended Operating Conditions) and Table 9.1–9.3 of the DCL540H01 datasheet.

What safety certifications does the DCL540H01 hold?

The DCL540H01 holds 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), confirming reinforced insulation suitability for industrial drives up to 600 V mains.

How does the DCL540H01 differ from the DCL541H01 in functional behavior?

The DCL540H01 uses EN1/EN2 enable logic (active-high to activate), while the DCL541H01 uses DIS1/DIS2 disable logic (active-high to deactivate). DCL540H01 defaults high when enabled; DCL541H01 defaults high when *not* disabled. Their pinouts differ: EN1/EN2 occupy pins 7 and 10 on DCL540H01, whereas DIS1/DIS2 are on pins 7 and 10 for DCL541H01 - making them functionally incompatible without PCB redesign.

What is the maximum CMTI value specified for the DCL540H01?

The DCL540H01 specifies a typical common-mode transient immunity (CMTI) of 150 kV/μs, with a minimum of 100 kV/μs, measured at VCM = 1500 V and Ta = 25 °C per Section 9.1–9.3 of the datasheet. This exceeds IEC 61800-5-1 requirements for 690 V AC drives and ensures robust operation in SiC inverter environments.

DCL540H01(T,E Specifications

Product attributes: Attribute value

Manufacturer:: Toshiba Semiconductor and Storage

Series:: DCL540x01

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:: 4/0

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

DCL540H01(T,E FAQ

1.How can I place an order for DCL540H01(T,E through Aetrix?

Please submit a Request for Quotation (RFQ) for DCL540H01(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 DCL540H01(T,E reliable?

The price and inventory of DCL540H01(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 DCL540H01(T,E is usually 5 days.

3.What payment methods are accepted for DCL540H01(T,E?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DCL540H01(T,E transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for DCL540H01(T,E?

DCL540H01(T,E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your DCL540H01(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 DCL540H01(T,E?

For technical support, including DCL540H01(T,E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DCL540H01(T,E requirements.

6.How does Aetrix verify that DCL540H01(T,E is sourced from the original manufacturer or authorized distributors?

All DCL540H01(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 DCL540H01(T,E meets industry standards.

7.What is the process for return or replacement of DCL540H01(T,E?

All DCL540H01(T,E units undergo pre-shipment inspection (PSI). If there is an issue with DCL540H01(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 DCL540H01(T,E part is unused and in its original packaging.

Return procedure for DCL540H01(T,E:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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