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Texas Instruments UCC27524AQDRQ1
- Part No.:
- UCC27524AQDRQ1
- Manufacturer:
- Texas Instruments
- Category:
- Gate Drivers
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
UCC27524AQDRQ1.pdf
- Description:
- IC GATE DRVR LOW-SIDE 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,007
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Product details
Overview
UCC27524AQDRQ1 from Texas Instruments is a dual-channel, high-speed, low-side gate driver IC for MOSFETs and IGBTs in automotive power systems. It delivers 5A peak source/sink current per channel, features 17ns typical propagation delay, 1ns typical inter-channel delay matching, and operates from 4.5V to 18V supply across –40°C to 150°C. It enables robust synchronous rectification in DC-DC converters.
For engineers reviewing the UCC27524AQDRQ1 datasheet, UCC27524AQDRQ1 pinout, UCC27524AQDRQ1 application, or UCC27524AQDRQ1 equivalent, key selection considerations include negative input voltage tolerance (–5V), independent enable pins (ENA/ENB), TTL/CMOS-compatible logic thresholds independent of VDD, UVLO protection with glitch-free startup, and SOIC-8/VSSOP-8 PowerPad™ package options.
Technical Context
The UCC27524AQDRQ1 implements a dual non-inverting output architecture with hybrid pull-up stage (P- and N-MOS) enabling 5A peak source current during Miller plateau transition. Its input and enable thresholds are fixed (1.0V/2.0V typ), hysteresis is 1V, and internal pulldown/pullup resistors (120kΩ/200kΩ) ensure defined states on floating inputs.
Each channel features independent enable control, rail-to-rail output swing, and UVLO that holds outputs low during undervoltage conditions. Propagation delays (tD1x/tD2x) are tightly matched (1ns typ), supporting precise timing-critical applications like synchronous rectifiers and paralleled GaN switch drives.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Source/Sink Current | 5A per channel - enables fast turn-on/off of high-Qg GaN/MOSFET switches |
| Propagation Delay | 17ns typical - minimizes pulse-width distortion in high-frequency (>1 MHz) SMPS |
| Delay Matching | 1ns typical between channels - supports synchronized dual-switch or paralleled-output configurations |
| Input Voltage Range | –5V to 18V - withstands negative transients without clamping diodes or external protection |
| VDD Operating Range | 4.5V to 18V - compatible with 5V, 12V, and 15V automotive auxiliary rails |
| Logic Threshold | TTL/CMOS-compatible, VDD-independent (1.0V low / 2.0V high) - interoperable with 3.3V/5V controllers |
| Operating Temp | –40°C to 150°C - qualified for under-hood automotive environments per AEC-Q100 Grade 1 |
Pinout & Package
UCC27524AQDRQ1 is available in SOIC-8 (D) and VSSOP-PowerPAD-8 (DGN) packages. Both feature exposed thermal pads for enhanced power dissipation in high-current switching applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| ENA (Pin 1) | Channel A Enable Input | Active-high enable; internally pulled up to VDD; floats to enable by default; allows independent shutdown of OUTA |
| INA (Pin 2) | Channel A Input | Non-inverting logic input; 120kΩ internal pulldown ensures OUTA = LOW when floating; accepts –5V to 18V |
| GND (Pin 3) | Power Ground | Reference for all signals and return path for sink current; connects to PCB thermal pad in DGN package |
| INB (Pin 4) | Channel B Input | Non-inverting logic input; identical behavior to INA; supports complementary or parallel drive configurations |
| OUTB (Pin 5) | Channel B Output | Low-side gate drive output; 5A sink/source capability; rail-to-rail swing (GND to VDD) |
| VDD (Pin 6) | Supply Input | Bias supply for internal circuitry and output stage; UVLO threshold 3.8–4.4V rising; requires local 1µF decoupling |
| OUTA (Pin 7) | Channel A Output | Low-side gate drive output; matches OUTB timing and drive strength; supports paralleling with OUTB |
| ENB (Pin 8) | Channel B Enable Input | Active-high enable; identical to ENA; enables pin-to-pin compatibility with UCC27324 when left floating |
Key Features
| Feature | Design Value |
|---|---|
| Negative Input Tolerance | –5V at INA/INB/ENA/ENB - eliminates need for external level-shifting or clamping in noisy automotive environments |
| VDD-Independent Logic | Fixed 1.0V/2.0V thresholds - ensures reliable interfacing with 3.3V microcontrollers even as VDD varies from 4.5V to 18V |
| UVLO with Safe State | Outputs held LOW during VDD < 3.8V - prevents partial turn-on and shoot-through during power-up/down sequences |
| Hybrid Pull-Up Architecture | N+P-MOS output stage - delivers boosted 5A source current precisely during Miller plateau for fastest MOSFET turn-on |
| Floating Input Safety | Internal 120kΩ pulldowns on INA/INB - guarantees OUTA/OUTB = LOW if controller fails or signal is disconnected |
Applications
| Automotive DC-DC Converters | Synchronous Rectification |
|---|---|
Use Scenario: 48V–12V bidirectional buck-boost converter in 48V mild-hybrid vehicles. IC Role / Device Role / Timing Role: Dual low-side driver controlling two parallel high-side N-channel MOSFETs via bootstrap gate drive; precise 1ns delay matching ensures zero dead-time loss. Use Value: Enables >97% efficiency at 200 kHz switching with GaN FETs while meeting AEC-Q100 Grade 1 thermal requirements. | Use Scenario: Secondary-side synchronous rectification in isolated LLC resonant converters for EV onboard chargers. IC Role / Device Role / Timing Role: Drives two SR MOSFETs in anti-phase with tight inter-channel timing; independent ENA/ENB allow light-load discontinuous conduction mode (DCM) control. Use Value: Reduces conduction losses by 40% vs. Schottky diodes and improves light-load efficiency via selective channel disable. |
| GaN Half-Bridge Gate Drive | Motor Control Inverters |
Use Scenario: High-frequency (500 kHz–1 MHz) totem-pole PFC stage using 650V GaN HEMTs. IC Role / Device Role / Timing Role: Low-side driver for GaN half-bridge; negative input tolerance handles dV/dt-induced coupling; 17ns delay enables accurate PWM edge placement. Use Value: Supports clean zero-voltage switching (ZVS) transitions and eliminates false triggering from EMI in compact layouts. | Use Scenario: 3-phase inverter for 48V electric power steering (EPS) with integrated current sensing. IC Role / Device Role / Timing Role: Dual driver per phase (six total UCC27524AQDRQ1) controlling low-side IGBTs; SOIC-8 package simplifies layout near gate drivers. Use Value: Delivers 5A peak current to rapidly charge/discharge high-Ciss IGBT gates, reducing switching losses by 35% at 10 kHz PWM. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-side gate driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| UCC27524D | Commercial-grade version; same pinout, specs, and SOIC-8 package; lacks AEC-Q100 qualification and extended temperature range (–40°C to 125°C only) | Not suitable for automotive under-hood use; acceptable for industrial or consumer DC-DC designs | Select UCC27524D only for non-automotive applications where cost sensitivity outweighs qualification requirements. |
| LM5113QDGSRQ1 | Single-channel, 5A low-side driver; AEC-Q100 Grade 1; includes integrated bootstrap diode and higher VDD max (20V); no independent enable pins | Requires two units for dual-channel operation; better suited for discrete half-bridge implementations than dual synchronous rectification | Choose LM5113QDGSRQ1 when single-channel flexibility, bootstrap integration, or 20V VDD margin is prioritized over dual-channel timing matching. |
Compared with UCC27524AQDRQ1, UCC27524D lacks automotive qualification and thermal range, limiting its use to non-safety-critical systems; LM5113QDGSRQ1 offers bootstrap integration but sacrifices inter-channel timing precision and increases component count for dual-channel needs.
Availability
UCC27524AQDRQ1 is available at Aetrix Electronics and suitable for automotive power conversion, industrial motor control, and GaN-based high-frequency DC-DC converters requiring stable component supply and long-term lifecycle support.
Supply support for UCC27524AQDRQ1 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 company headquartered in Dallas, Texas, specializing in analog, embedded processing, and automotive ICs with broad manufacturing scale and automotive qualification infrastructure.
The UCC27524AQDRQ1 belongs to TI's high-speed gate driver product line, designed specifically for robust, high-efficiency power conversion in automotive electrification systems including 48V architectures, onboard chargers, and EPS inverters.
FAQ
What is the maximum negative voltage the UCC27524AQDRQ1 inputs can tolerate?
The UCC27524AQDRQ1 inputs (INA, INB, ENA, ENB) tolerate –5V DC per absolute maximum ratings. This capability allows direct connection to noisy automotive signal lines without external clamping diodes or level shifters, enhancing system robustness during load dump or inductive kick events. The UCC27524AQDRQ1 maintains functional integrity within this range without latch-up or parametric degradation.
Does the UCC27524AQDRQ1 support paralleling of its two outputs?
Yes, the UCC27524AQDRQ1 supports paralleling OUTA and OUTB to deliver up to 10A peak drive current. Its 1ns typical delay matching and matched rise/fall times (6ns/10ns) minimize timing skew, preventing shoot-through in high-current gate drive applications. When paralleling, connect INA to INB and ENA to ENB, and route both outputs to the same gate node with symmetrical PCB traces.
How does the UCC27524AQDRQ1 handle floating input pins?
The UCC27524AQDRQ1 incorporates 120kΩ internal pulldown resistors on INA and INB, ensuring OUTA and OUTB remain LOW when those inputs float. This fail-safe behavior prevents unintended power switch turn-on during controller reset, communication loss, or wiring faults-critical for ISO 26262-compliant automotive designs. The UCC27524AQDRQ1 achieves this without external components.
What is the purpose of the independent enable pins (ENA and ENB) on the UCC27524AQDRQ1?
The independent enable pins (ENA and ENB) on the UCC27524AQDRQ1 provide per-channel control to disable individual outputs without affecting the other channel. This enables advanced power management strategies such as light-load DCM in synchronous rectifiers or fault-isolation in multi-phase converters. Each enable pin is active-high, internally pulled up to VDD, and functions identically to the input pins in voltage range and noise immunity.
Is the UCC27524AQDRQ1 pin-compatible with earlier TI gate drivers?
Yes, the UCC27524AQDRQ1 is pin-compatible with the UCC27324 in SOIC-8 (D) package when ENA and ENB are left floating-matching the NC pins of the legacy device. This allows drop-in replacement in existing designs while adding automotive qualification, negative input tolerance, and tighter delay matching. Pin compatibility does not extend to VSSOP-8 (DGN) variants of earlier drivers due to differing thermal pad layouts.
UCC27524AQDRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Driven Configuration:
- Low-Side
- Channel Type:
- Independent
- Number of Drivers:
- 2
- Gate Type:
- IGBT, N-Channel MOSFET
- Voltage - Supply:
- 4.5V ~ 18V
- Logic Voltage - VIL, VIH:
- 1V, 2.3V
- Current - Peak Output (Source, Sink):
- 5A, 5A
- Input Type:
- Non-Inverting
- High Side Voltage - Max (Bootstrap):
- -
- Rise / Fall Time (Typ):
- 7ns, 6ns
- Operating Temperature:
- -40°C ~ 140°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
UCC27524AQDRQ1 FAQ
1.How can I place an order for UCC27524AQDRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for UCC27524AQDRQ1 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 UCC27524AQDRQ1 reliable?
The price and inventory of UCC27524AQDRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for UCC27524AQDRQ1 is usually 5 days.
3.What payment methods are accepted for UCC27524AQDRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UCC27524AQDRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for UCC27524AQDRQ1?
UCC27524AQDRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your UCC27524AQDRQ1 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 UCC27524AQDRQ1?
For technical support, including UCC27524AQDRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UCC27524AQDRQ1 requirements.
6.How does Aetrix verify that UCC27524AQDRQ1 is sourced from the original manufacturer or authorized distributors?
All UCC27524AQDRQ1 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 UCC27524AQDRQ1 meets industry standards.
7.What is the process for return or replacement of UCC27524AQDRQ1?
All UCC27524AQDRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with UCC27524AQDRQ1, 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 UCC27524AQDRQ1 part is unused and in its original packaging.
Return procedure for UCC27524AQDRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
UCC27524AQDRQ1 Tags
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Diodes Incorporated
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Infineon Technologies
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UCC27517DBVR
Texas Instruments
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Littelfuse Inc.
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Infineon Technologies
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Littelfuse Inc.
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