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Texas Instruments UCC27533DBVT
- Part No.:
- UCC27533DBVT
- Manufacturer:
- Texas Instruments
- Category:
- Gate Drivers
- Package:
- SC-74A, SOT-753
- Datasheet:
-
UCC27533DBVT.pdf
- Description:
- IC GATE DRVR LOW-SIDE SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:1,177
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Product details
Overview
UCC27533DBVT from Texas Instruments is a single-channel, high-speed MOSFET/IGBT gate driver in a 5-pin SOT-23 (DBV) package, delivering 2.5-A source and 5-A sink peak output current at 18-V VDD, with 17-ns typical propagation delay and rail-to-rail drive capability for high-efficiency power stage control in DC–DC converters and motor drives.
For engineers reviewing the UCC27533DBVT datasheet, UCC27533DBVT pinout, UCC27533DBVT application, or UCC27533DBVT equivalent, this page delivers verified technical context, exact pin functions, real-world switching performance metrics, and validated alternative options for gate driver selection in high-frequency, high-reliability power systems.
Technical Context
The UCC27533DBVT implements dual-input (IN+, IN−) differential logic with inverting/non-inverting capability, enabling robust noise immunity and flexible signal routing in noisy power environments. Its asymmetrical drive architecture-2.5-A source / 5-A sink-directly suppresses Miller-induced false turn-on during high dv/dt transitions.
It features TTL/CMOS-compatible input thresholds independent of VDD, undervoltage lockout (UVLO) with 8.9-V turn-on and 0.7-V hysteresis, and input pins rated to –5 V below ground-critical for reliable operation in bootstrap or isolated gate-drive topologies.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDD Range | 10 V to 35 V - supports wide-input industrial and automotive power supplies without external regulation |
| Peak Output Current | 2.5 A source / 5 A sink - enables fast turn-on and aggressive turn-off for SiC and high-speed IGBTs |
| Propagation Delay | 17 ns typical - ensures tight timing control in >1 MHz switching applications |
| Rise/Fall Time | 15 ns / 7 ns typical (1.8 nF load) - minimizes switching losses and EMI generation |
| Input Voltage Range | –5 V to 25 V - withstands negative transients and simplifies level-shifting interface design |
| UVLO Threshold | 8.9 V turn-on, 8.2 V turn-off - prevents erratic gate behavior during brown-out conditions |
| Operating Temp | –40°C to +140°C - qualified for under-hood and industrial ambient environments |
Pinout & Package
UCC27533DBVT uses the 5-pin SOT-23 (DBV) package, 2.90 mm × 1.60 mm body size, optimized for space-constrained PCB layouts in high-density power modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - VDD | Bias supply input | Primary power rail; UVLO monitoring occurs here; requires local 1-µF decoupling |
| 2 - GND | Ground reference | Common return for all signals; must be low-inductance connection to minimize ground bounce |
| 3 - IN+ | Non-inverting input | Active-high logic input; drives output high when IN+ > 2.0 V (TTL threshold) |
| 4 - IN− | Inverting input | Active-low logic input; drives output low when IN− > 2.0 V; enables differential or complementary control |
| 5 - OUT | Combined gate drive output | Single-pin 2.5-A source / 5-A sink output; connects directly to MOSFET/IGBT gate with series resistor |
Key Features
| Feature | Design Value |
|---|---|
| Dual-input logic (IN+/IN−) | Enables noise-immune differential signaling or independent enable/control without external logic |
| Asymmetrical drive strength | 5-A sink current actively clamps gate voltage during turn-off, eliminating Miller-induced shoot-through risk |
| TTL/CMOS input compatibility | Fixed 2.0-V threshold independent of VDD allows direct interfacing with microcontrollers and PWM controllers |
| Negative input tolerance (–5 V) | Permits safe operation with bootstrap circuits or floating gate drivers where inputs may dip below ground |
| Output held low during UVLO or floating inputs | Prevents unintended power switch activation during startup, fault, or controller reset sequences |
Applications
| Motor Control Systems | Solar Inverters |
|---|---|
|
Use Scenario: Driving half-bridge IGBTs in BLDC motor controllers operating at 20–100 kHz switching frequency. IC Role / Device Role / Timing Role: Gate driver providing precise, high-current turn-on/turn-off timing to minimize conduction and switching losses. Use Value: 5-A sink current ensures rapid IGBT turn-off, reducing tail current losses and improving thermal margin at 140°C junction temperature. |
Use Scenario: Controlling MOSFETs in MPPT stages and H-bridge inverters for residential solar string inverters. IC Role / Device Role / Timing Role: High-speed gate driver synchronizing with DSP-based PWM to maintain >98% conversion efficiency. Use Value: 17-ns propagation delay enables sub-100-ns dead-time control, preventing cross-conduction in bidirectional power flow. |
| HEV/EV Onboard Chargers | Industrial DC–DC Converters |
|
Use Scenario: Driving SiC MOSFETs in 3.3-kW AC/DC PFC and LLC resonant stages with >300-kHz operation. IC Role / Device Role / Timing Role: Robust gate driver handling high dv/dt (>50 V/ns) while maintaining clean edge fidelity. Use Value: –5-V input rating tolerates ground shift in high-side configurations; 15-ns rise time preserves PWM resolution at high frequencies. |
Use Scenario: Gate driving GaN HEMTs in isolated 48 V–12 V telecom DC–DC modules requiring <100-ns timing precision. IC Role / Device Role / Timing Role: Single-channel driver delivering rail-to-rail swing and fast transient response for zero-voltage switching control. Use Value: Rail-to-rail output swing (VDD–0.07 V high / 0.125 V low) maximizes effective gate overdrive across full VDD range (10–35 V). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar gate driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| UCC27537DBVT | Includes EN pin; identical IN+/IN− logic and 2.5-A/5-A drive; same DBV package | Required when system-level enable/disable sequencing is needed beyond input control | Select UCC27537DBVT if hardware-controlled shutdown or power sequencing is mandatory |
| UCC27536DBVT | 2.5-A/2.5-A symmetrical drive; inverting-only input; no IN+ pin; same DBV package | Suitable for unidirectional PWM control where matched turn-on/turn-off slew is preferred | Choose UCC27536DBVT for cost-sensitive designs needing balanced drive and simpler input logic |
Compared with UCC27533DBVT, UCC27537DBVT adds hardware enable functionality without sacrificing drive strength, while UCC27536DBVT trades asymmetrical drive for lower complexity and symmetrical switching-making each optimal for distinct gate-control architectures.
Availability
UCC27533DBVT is available at Aetrix Electronics and suitable for switched-mode power supplies, motor control systems, and renewable energy power conversion requiring stable component supply across extended temperature and high-reliability production cycles.
Supply support for UCC27533DBVT 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 power management technologies, with decades of expertise in high-performance power ICs.
The UCC2753x family was designed specifically for high-efficiency, high-frequency gate driving of silicon and wide-bandgap power devices in industrial, automotive, and renewable energy systems.
FAQ
What is the maximum supply voltage for UCC27533DBVT?
The absolute maximum VDD rating for UCC27533DBVT is 35 V, with recommended operation from 10 V to 32 V. Operating above 32 V risks exceeding thermal limits under sustained load, while operation below 10 V triggers UVLO and forces output low. The 35-V absolute max accommodates transient spikes in industrial bus rails.
Does UCC27533DBVT support both inverting and non-inverting logic modes?
Yes, UCC27533DBVT supports both modes via its dual-input architecture: applying signal to IN+ yields non-inverting behavior (OUT high when IN+ high), while applying signal to IN− yields inverting behavior (OUT low when IN− high). Both inputs can be used simultaneously for differential noise rejection or logic gating.
How does UCC27533DBVT handle floating input pins?
UCC27533DBVT internally holds the output low when both IN+ and IN− are floating or at indeterminate voltage levels. This fail-safe behavior prevents unintended power switch activation during controller initialization, reset, or communication loss-ensuring system safety without external pull-down resistors.
Can UCC27533DBVT drive SiC MOSFETs effectively?
Yes, UCC27533DBVT is well-suited for SiC MOSFETs due to its 5-A sink current, 15-ns rise time, and 7-ns fall time into 1.8-nF loads-enabling fast, controlled switching that minimizes overlap losses. Its –5-V input rating also supports common-source SiC configurations where gate nodes swing below ground.
What thermal derating applies to UCC27533DBVT in SOT-23 package?
UCC27533DBVT in DBV package has RθJA = 178.3°C/W under natural convection. At 140°C max junction temperature and 25°C ambient, continuous power dissipation must stay below ~530 mW. For sustained 2.5-A/5-A pulsed operation, PCB copper area and airflow must be optimized per TI's layout guidelines in SLUSBA7G.
UCC27533DBVT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Driven Configuration:
- Low-Side
- Channel Type:
- Single
- Number of Drivers:
- 1
- Gate Type:
- IGBT, N-Channel MOSFET
- Voltage - Supply:
- 10V ~ 32V
- Logic Voltage - VIL, VIH:
- 1.2V, 2.2V
- Current - Peak Output (Source, Sink):
- 2.5A, 5A
- Input Type:
- Inverting, Non-Inverting
- High Side Voltage - Max (Bootstrap):
- -
- Rise / Fall Time (Typ):
- 15ns, 7ns
- Operating Temperature:
- -40°C ~ 140°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
UCC27533DBVT FAQ
1.How can I place an order for UCC27533DBVT through Aetrix?
Please submit a Request for Quotation (RFQ) for UCC27533DBVT 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 UCC27533DBVT reliable?
The price and inventory of UCC27533DBVT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for UCC27533DBVT is usually 5 days.
3.What payment methods are accepted for UCC27533DBVT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UCC27533DBVT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for UCC27533DBVT?
UCC27533DBVT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your UCC27533DBVT 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 UCC27533DBVT?
For technical support, including UCC27533DBVT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UCC27533DBVT requirements.
6.How does Aetrix verify that UCC27533DBVT is sourced from the original manufacturer or authorized distributors?
All UCC27533DBVT 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 UCC27533DBVT meets industry standards.
7.What is the process for return or replacement of UCC27533DBVT?
All UCC27533DBVT units undergo pre-shipment inspection (PSI). If there is an issue with UCC27533DBVT, 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 UCC27533DBVT part is unused and in its original packaging.
Return procedure for UCC27533DBVT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
UCC27533DBVT Tags
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ZXGD3009E6TA
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1EDN7512BXTSA1
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UCC27517DBVR
Texas Instruments
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MCP1416T-E/OT
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MCP1415T-E/OT
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IX4428NTR
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IRS2005STRPBF
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IRS2008STRPBF
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IX4310TTR
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2EDN7524RXTMA1
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