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Home > Products > Isolators > Isolators - Gate Drivers

Texas Instruments ISO5452QDWQ1

Name: ISO5452QDWQ1
Brand: Texas Instruments
SKU: ISO5452QDWQ1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: ISO5452QDWQ1

Manufacturer:: Texas Instruments

Category:: Isolators - Gate Drivers

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

Datasheet:: ISO5452QDWQ1.pdf

Description:: DGTL ISO 5.7KV 1CH GT DVR 16SOIC

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Product details

Overview

ISO5452QDWQ1 from Texas Instruments is an AEC-Q100 Grade 1 qualified, reinforced isolated gate driver IC for IGBTs and MOSFETs, featuring split outputs (2.5-A source / 5-A sink), 76-ns typical propagation delay, 100-kV/μs CMTI, and integrated desaturation protection with soft turn-off. It operates across –40°C to +125°C ambient and is deployed in HEV/EV power modules for high-reliability motor control.

For engineers reviewing the ISO5452QDWQ1 datasheet, ISO5452QDWQ1 pinout, ISO5452QDWQ1 application, or ISO5452QDWQ1 equivalent, key selection criteria include its 5.7-kVRMS reinforced isolation rating, dual UVLO monitoring (input/output sides), active Miller clamp, output short-circuit clamping, and fault signaling via FLT/RST pins - all critical for functional safety-compliant inverter designs.

Technical Context

The ISO5452QDWQ1 implements a galvanically isolated CMOS input stage coupled with a high-speed silicon-based isolator barrier, enabling precise timing control of complementary OUTH/OUTL outputs. Its internal desaturation detection circuit monitors V_CE via the DESAT pin with 9-V threshold and 400–580 µA blanking capacitor charge current, triggering Mute logic and initiating a 2-µs soft turn-off sequence.

It integrates dual independent undervoltage lockout (UVLO1: 2.25 V / 1.7 V hysteresis; UVLO2: 13 V / 9.5 V hysteresis) and features active pulldown on floating or low-supply inputs. The CLAMP output delivers 2-A peak Miller clamping current with 1.6–3.3 A capability at V_CLP = V_EE2 + 2.5 V, ensuring robust immunity against dynamic shoot-through during high dv/dt transients.

Key Specifications

Parameter	Value and Actual Design Meaning
CMTI	100 kV/μs typical - ensures reliable operation under fast common-mode transients up to 1500 V in high-power inverters.
Output Drive	2.5-A peak source (OUTH), 5-A peak sink (OUTL) - supports fast switching of high-current IGBTs in 100+ kW systems.
Propagation Delay	76 ns typical, 110 ns max - enables tight PWM timing control and minimizes dead-time uncertainty in three-phase drives.
Isolation Rating	5.7-kVRMS reinforced per VDE 0884-10, 8000-VPK transient voltage - meets automotive ASIL-D and industrial SIL-3 requirements.
DESAT Threshold	9 V nominal (8.3–9.5 V) referenced to GND2 - configurable overvoltage detection for IGBT saturation monitoring.
Input Supply Range	2.25 V to 5.5 V - compatible with 3.3-V and 5-V microcontrollers without level-shifting.
Output Supply Range	15 V to 30 V (V_CC2–V_EE2) - supports bipolar (±15 V) or unipolar (15–30 V) gate drive configurations.

Pinout & Package

ISO5452QDWQ1 is housed in a 16-pin SOIC (DW) package measuring 10.30 mm × 7.50 mm, optimized for creepage/clearance >8 mm and reinforced insulation integrity in high-voltage motor control PCB layouts.

Pin/Terminal	Circuit Role	Design Meaning
1, 8, VEE2	Output negative supply rail	Reference for OUTL and CLAMP; tied to GND2 in unipolar configurations.
2, DESAT	Desaturation sense input	Monitors IGBT collector-emitter voltage; triggers fault response when >9 V above GND2.
3, GND2	Gate drive common reference	IGBT emitter connection point; serves as return path for OUTH/OUTL/CLAMP currents.
4, OUTH	Positive gate drive output	Drives IGBT/MOSFET gate high with 2.5-A peak sourcing capability.
5, VCC2	Output positive supply rail	Primary high-side supply (15–30 V); sets upper voltage limit for OUTH swing.
6, OUTL	Negative gate drive output	Sinks 5-A peak to pull gate low; enables active Miller clamping and fast turn-off.
7, CLAMP	Active Miller clamp output	Provides low-impedance path to VEE2 during Miller plateau to prevent spurious turn-on.
9, 16, GND1	Input ground reference	Return path for IN+, IN−, RST, RDY, FLT; electrically isolated from GND2.
10, IN+	Non-inverting logic input	CMOS-compatible; high-level threshold = 0.7×VCC1; internally pulled low.
11, IN−	Inverting logic input	CMOS-compatible; low-level threshold = 0.3×VCC1; internally pulled high.
12, RDY	Power-good status indicator	Open-drain, active-high signal confirming both VCC1 and VCC2 are within UVLO limits.
13, FLT	Fault alarm output	Open-drain, active-low latch indicating DESAT event; reset only after RDY goes high and RST pulse applied.
14, RST	Fault reset input	Low-active pulse (>800 ns) required to clear latched FLT condition after UVLO recovery.
15, VCC1	Input side supply rail	2.25–5.5 V supply for isolator input stage and logic; powers IN+/IN−/RST/RDY/FLT circuits.

Key Features

Feature	Design Value
Split-output architecture	Independent OUTH (2.5-A source) and OUTL (5-A sink) enable asymmetric gate drive for optimized IGBT switching loss and EMI control.
Soft Turn-Off (STO)	Upon DESAT detection, disables OUTH and ramps OUTL to VEE2 over 2 μs - reduces voltage overshoot and di/dt stress during fault conditions.
Active Miller Clamp	CLAMP output sinks ≥2 A to VEE2 during Miller region, preventing false turn-on caused by high dv/dt across parasitic C_GE.
Dual UVLO monitoring	Independent input-side (UVLO1) and output-side (UVLO2) lockouts ensure safe operation only when both supplies meet minimum thresholds (2.25 V / 13 V).
Glitch-filtered inputs	20–40 ns noise rejection on IN+, IN−, and RST pins eliminates false triggering from <20 ns transients in noisy power electronics environments.
Output short-circuit clamp	Clamps OUTH and OUTL to safe voltages (≤1.5 V above VEE2 or below VCC2) during sustained short-circuit events, limiting power dissipation.

Applications

HEV/EV Traction Inverters	Industrial Motor Drives
Use Scenario: High-power traction inverter controlling permanent magnet synchronous motors in battery electric vehicles. IC Role / Device Role / Timing Role: Isolated gate driver providing reinforced 5.7-kVRMS separation between MCU and 650-V/1200-V IGBT half-bridges; manages DESAT fault detection and STO response. Use Value: Enables ASIL-D compliant functional safety architecture with <1.4 µs DESAT-to-FLT latency and certified 8000-VPK surge withstand for long-term reliability in harsh automotive environments.	Use Scenario: Variable-frequency drive (VFD) for HVAC compressors and industrial pumps operating at 400–690 VAC line voltage. IC Role / Device Role / Timing Role: Gate driver with split outputs and active Miller clamp delivering precise timing control to 1200-V SiC MOSFETs in three-phase bridge topologies. Use Value: Reduces system-level EMI through 100-kV/μs CMTI and controlled 76-ns propagation delay, eliminating need for external snubbers or gate resistors in compact PCB layouts.
Solar Photovoltaic Inverters	Induction Heating Systems
Use Scenario: String-level DC-AC conversion in utility-scale solar farms using NPC or T-type multilevel topologies. IC Role / Device Role / Timing Role: Reinforced isolated driver managing bidirectional switching of IGBTs in high-efficiency 3-level inverters with split-rail gate bias. Use Value: Supports 30-V maximum output supply for enhanced gate overdrive margin, improving conduction losses and thermal derating in outdoor-rated enclosures.	Use Scenario: Resonant half-bridge inverters driving induction coils in industrial metal heating applications (e.g., forging, brazing). IC Role / Device Role / Timing Role: Fast-propagation gate driver synchronizing high-frequency (20–100 kHz) IGBT switching with zero-voltage switching (ZVS) control. Use Value: Delivers <110 ns max propagation delay skew and 20 ns pulse skew to maintain precise phase alignment across parallel bridge legs, maximizing power transfer efficiency.

HEV/EV Traction Inverters

Industrial Motor Drives

Use Scenario: High-power traction inverter controlling permanent magnet synchronous motors in battery electric vehicles.

IC Role / Device Role / Timing Role: Isolated gate driver providing reinforced 5.7-kVRMS separation between MCU and 650-V/1200-V IGBT half-bridges; manages DESAT fault detection and STO response.

Use Value: Enables ASIL-D compliant functional safety architecture with <1.4 µs DESAT-to-FLT latency and certified 8000-VPK surge withstand for long-term reliability in harsh automotive environments.

Use Scenario: Variable-frequency drive (VFD) for HVAC compressors and industrial pumps operating at 400–690 VAC line voltage.

IC Role / Device Role / Timing Role: Gate driver with split outputs and active Miller clamp delivering precise timing control to 1200-V SiC MOSFETs in three-phase bridge topologies.

Use Value: Reduces system-level EMI through 100-kV/μs CMTI and controlled 76-ns propagation delay, eliminating need for external snubbers or gate resistors in compact PCB layouts.

Solar Photovoltaic Inverters

Induction Heating Systems

Use Scenario: String-level DC-AC conversion in utility-scale solar farms using NPC or T-type multilevel topologies.

IC Role / Device Role / Timing Role: Reinforced isolated driver managing bidirectional switching of IGBTs in high-efficiency 3-level inverters with split-rail gate bias.

Use Value: Supports 30-V maximum output supply for enhanced gate overdrive margin, improving conduction losses and thermal derating in outdoor-rated enclosures.

Use Scenario: Resonant half-bridge inverters driving induction coils in industrial metal heating applications (e.g., forging, brazing).

IC Role / Device Role / Timing Role: Fast-propagation gate driver synchronizing high-frequency (20–100 kHz) IGBT switching with zero-voltage switching (ZVS) control.

Use Value: Delivers <110 ns max propagation delay skew and 20 ns pulse skew to maintain precise phase alignment across parallel bridge legs, maximizing power transfer efficiency.

Equivalent & Alternatives

The following parts are listed as comparable options for similar isolated gate driver applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
Si827x series (e.g., Si8273BD)	Capacitive isolation, 4-A source/6-A sink, no integrated DESAT comparator; requires external sensing network.	Lacks built-in desaturation protection and soft turn-off - suitable for designs with discrete DESAT circuitry or lower safety integrity requirements.	Preferred where higher peak current (6 A sink) and faster rise time (<10 ns) are prioritized over integrated fault management.
UCC5390SCD	Single-channel, 10-A peak sink, no split outputs or CLAMP pin; includes V_CE sensing but no soft turn-off or RDY/FLT latching.	Designed for single-ended gate drive; lacks dual UVLO and ready/fault signaling - better suited for cost-sensitive non-automotive applications.	Chosen when highest sink current (10 A) and minimal footprint are critical, and system-level fault handling is implemented externally.

Compared with Si8273BD and UCC5390SCD, ISO5452QDWQ1 uniquely combines AEC-Q100 Grade 1 qualification, integrated DESAT with STO, dual UVLO with RDY/FLT signaling, and split outputs - making it the only option certified for ASIL-D automotive traction inverter subsystems requiring self-contained fault response.

Availability

ISO5452QDWQ1 is available at Aetrix Electronics and suitable for HEV/EV power modules, industrial motor control drives, and solar inverters requiring stable component supply with full automotive-grade traceability and long-term lifecycle support.

Supply support for ISO5452QDWQ1 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

Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and high-reliability power management solutions, with deep expertise in automotive and industrial isolation technologies.

The ISO5452QDWQ1 belongs to TI's reinforced isolated gate driver product line, engineered specifically for functional safety-critical traction inverters and industrial motor drives demanding certified 5.7-kVRMS isolation and integrated protection features.

FAQ

What is the isolation rating and safety certification status of ISO5452QDWQ1?

ISO5452QDWQ1 provides 5.7-kVRMS reinforced isolation per DIN V VDE V 0884-10 and 5700-VRMS per UL 1577. It holds full certifications including VDE, UL, CSA, CQC, and TUV for automotive (AEC-Q100 Grade 1), industrial, and medical end-equipment standards - all completed and documented in the official TI datasheet revision December 2016.

How does the desaturation (DESAT) protection function in ISO5452QDWQ1?

ISO5452QDWQ1 monitors IGBT V_CE via the DESAT pin with a nominal 9-V threshold. Upon detection, it immediately blocks the isolator output, initiates a 2-µs soft turn-off (disabling OUTH and ramping OUTL to VEE2), and asserts FLT low. The fault remains latched until RDY goes high and a valid low pulse is applied to RST.

What are the supply voltage requirements for ISO5452QDWQ1 input and output sides?

ISO5452QDWQ1 requires 2.25 V to 5.5 V on VCC1 (input side) and 15 V to 30 V across VCC2–VEE2 (output side). UVLO1 activates below 2.25 V (input), and UVLO2 activates below 13 V (output), with corresponding hysteresis ensuring stable power-up/down sequencing and fault-free operation.

Does ISO5452QDWQ1 support both unipolar and bipolar gate drive configurations?

Yes - ISO5452QDWQ1 supports unipolar (e.g., VCC2 = 15 V, VEE2 = GND2) and bipolar (e.g., VCC2 = 15 V, VEE2 = –15 V) output supplies. In unipolar mode, GND2 and VEE2 are tied; in bipolar mode, VEE2 establishes the negative rail for enhanced negative gate bias and Miller immunity.

What is the purpose of the CLAMP pin on ISO5452QDWQ1?

The CLAMP pin on ISO5452QDWQ1 provides an active Miller clamp output that sinks ≥2 A to VEE2 during the Miller plateau region. This prevents spurious IGBT turn-on caused by high dv/dt coupling through C_GE, especially critical in high-speed SiC and fast-switching IGBT applications where passive clamping is insufficient.

ISO5452QDWQ1 Specifications

Product attributes: Attribute value

Manufacturer:: Texas Instruments

Series:: -

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

Packaging:: Tube

Product Status:: Last Time Buy

Technology:: Capacitive Coupling

Number of Channels:: 1

Voltage - Isolation:: 5700Vrms

Common Mode Transient Immunity (Min):: 50kV/µs

Propagation Delay tpLH / tpHL (Max):: 110ns, 110ns

Pulse Width Distortion (Max):: -

Rise / Fall Time (Typ):: 18ns, 20ns

Current - Output High, Low:: 1.5A, 3.4A

Current - Peak Output:: 2.7A, 5.5A

Voltage - Forward (Vf) (Typ):: -

Current - DC Forward (If) (Max):: -

Voltage - Output Supply:: 15V ~ 30V

Grade:: Automotive

Qualification:: AEC-Q100

Operating Temperature:: -40°C ~ 125°C

Mounting Type:: Surface Mount

Supplier Device Package:: 16-SOIC

Approval Agency:: CQC, CSA, TUV, UL, VDE

ISO5452QDWQ1 FAQ

1.How can I place an order for ISO5452QDWQ1 through Aetrix?

Please submit a Request for Quotation (RFQ) for ISO5452QDWQ1 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 ISO5452QDWQ1 reliable?

The price and inventory of ISO5452QDWQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISO5452QDWQ1 is usually 5 days.

3.What payment methods are accepted for ISO5452QDWQ1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISO5452QDWQ1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for ISO5452QDWQ1?

ISO5452QDWQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your ISO5452QDWQ1 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 ISO5452QDWQ1?

For technical support, including ISO5452QDWQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISO5452QDWQ1 requirements.

6.How does Aetrix verify that ISO5452QDWQ1 is sourced from the original manufacturer or authorized distributors?

All ISO5452QDWQ1 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 ISO5452QDWQ1 meets industry standards.

7.What is the process for return or replacement of ISO5452QDWQ1?

All ISO5452QDWQ1 units undergo pre-shipment inspection (PSI). If there is an issue with ISO5452QDWQ1, 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 ISO5452QDWQ1 part is unused and in its original packaging.

Return procedure for ISO5452QDWQ1:

1.Submit a request within 90 days.

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

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