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Texas Instruments UCC27282QDDAQ1
- Part No.:
- UCC27282QDDAQ1
- Manufacturer:
- Texas Instruments
- Category:
- Gate Drivers
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
UCC27282QDDAQ1.pdf
- Description:
- IC GATE DRVR HALF-BRIDGE 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,040
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Product details
Overview
UCC27282QDDAQ1 from Texas Instruments is an AEC-Q100 Grade 1 automotive half-bridge gate driver for two N-channel MOSFETs in high-side/low-side configuration, featuring ±3-A peak output current, 16-ns typical propagation delay, 12-ns/10-ns rise/fall time (1.8-nF load), and integrated bootstrap diode - deployed in electric power steering and on-board charger systems.
For engineers reviewing the UCC27282QDDAQ1 datasheet, UCC27282QDDAQ1 pinout, UCC27282QDDAQ1 application, or UCC27282QDDAQ1 equivalent, key selection criteria include HS voltage rating (100 V), input interlock functionality, enable/disable control in DDA package, UVLO thresholds (5.0 V on VDD), and thermal performance (RθJA = 40.8°C/W).
Technical Context
The UCC27282QDDAQ1 implements independent TTL/CMOS-compatible HI/LI inputs with internal interlock logic that forces both HO and LO low during input overlap, preventing shoot-through without adding fixed dead time. Its floating high-side driver uses a robust level shifter referenced to HS, enabling operation up to 100 V with respect to VSS while maintaining tight 1-ns typical delay matching between channels.
UVLO protection operates separately on VDD (5.0-V threshold) and HB–HS (3.7-V threshold), ensuring safe startup and fault response. The integrated bootstrap diode supports self-biased high-side drive, and the EN pin (available in DDA package) provides system-level enable/disable control with 18-μs enable delay and 1.5-μs disable delay.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Output Current | ±3 A - drives large gate capacitances with minimal Miller plateau transition losses |
| Propagation Delay | 16 ns typical - enables high-frequency switching (>1 MHz) with precise timing control |
| Rise/Fall Time | 12 ns / 10 ns @ 1.8-nF load - reduces switching energy loss and EMI generation |
| Delay Matching | 1 ns typical - minimizes required dead time, improving efficiency in synchronous buck/half-bridge topologies |
| HS Voltage Rating | 100 V DC - supports 48-V and 400-V automotive bus architectures with margin |
| VDD UVLO Threshold | 5.0 V typical - allows stable operation at low bias voltages common in high-frequency converters |
| Bootstrap Diode | Integrated - eliminates external diode, reducing BOM count and PCB area in space-constrained modules |
Pinout & Package
UCC27282QDDAQ1 is packaged in SOIC-8 with exposed thermal pad (DDA), measuring 6 mm × 5 mm. Thermal pad must be connected to VSS ground plane for optimal thermal performance (RθJB = 16.4°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Power input | Supplies low-side driver stage; decoupled with 1-μF capacitor to VSS |
| HB | Bootstrap supply | Connects to positive terminal of external bootstrap capacitor; internal diode charges capacitor during LO conduction |
| HO | High-side output | Drives gate of high-side N-MOSFET; referenced to HS node, not VSS |
| HS | High-side source | Switch node connection; tolerates –12 V transient pulses (<100 ns) and –8 V DC |
| LI | Low-side input | TTL/CMOS-compatible; internal 250-kΩ pulldown ensures LO stays low when floating |
| HI | High-side input | Independent of VDD rail; accepts wide-slew-rate signals and –5 V negative transients |
| LO | Low-side output | Drives gate of low-side N-MOSFET; referenced to VSS |
| EN | Enable input | Active-high control; 2.0-V threshold enables driver; 1.21-V falling threshold disables it |
| VSS | Ground reference | Common return for low-side circuitry and thermal pad connection point |
Key Features
| Feature | Design Value |
|---|---|
| Input Interlock Logic | Forces HO and LO low during HI/LI overlap - prevents shoot-through without compromising propagation delay or adding fixed dead time |
| AEC-Q100 Grade 1 Qualification | Validated for –40°C to +150°C junction temperature - suitable for under-hood automotive power modules |
| Negative Voltage Tolerance | Inputs tolerate –5 V; HS pin withstands –12 V pulses - improves robustness against board-level transients and body-diode ringing |
| Functional Safety Capability | Documentation available per ISO 26262 - supports ASIL-B system-level safety analysis for EPS and OBC applications |
| Low Disabled Current | 7-μA IDD_DIS - enables ultra-low-power sleep mode in battery-backed systems |
Applications
| Automotive DC/DC Converters | Electric Power Steering (EPS) |
|---|---|
Use Scenario: 48-V to 12-V bidirectional buck-boost conversion in 48-V mild hybrid architectures. IC Role / Device Role / Timing Role: Half-bridge gate driver controlling synchronous rectification and active clamp phases with <1-ns channel-to-channel delay matching. Use Value: Enables >96% peak efficiency by minimizing dead-time losses and supporting 500-kHz+ switching with low gate drive losses. | Use Scenario: Motor phase control in 3-phase inverter for column-assist EPS systems. IC Role / Device Role / Timing Role: Dual-channel N-MOSFET driver with interlock protection, operating at 20–40 kHz with fast 12-ns/10-ns edge rates. Use Value: Prevents shoot-through faults during rapid torque transients, meeting ASIL-C functional safety requirements via hardware-level interlock. |
| On-Board Charger (OBC) | Integrated Belt Starter Generator (iBSG) |
Use Scenario: AC/DC PFC stage and isolated DC/DC stage in bi-directional OBC for EVs. IC Role / Device Role / Timing Role: High-side/low-side driver for totem-pole PFC and LLC resonant converter primary switches. Use Value: Integrated bootstrap diode reduces component count; 100-V HS rating supports 650-V SiC switch gate drive with margin. | Use Scenario: 48-V motor/generator control in stop-start and regenerative braking functions. IC Role / Device Role / Timing Role: Half-bridge driver for inverter leg with EN-controlled shutdown during fault events. Use Value: 7-μA disabled current extends battery standby life; AEC-Q100 qualification ensures reliability over 15-year vehicle lifetime. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar half-bridge gate driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| UCC27289QDDAQ1 | Same pinout, 100-V HS rating, but adds programmable dead-time control and higher 4-A peak current | Better suited for SiC/GaN designs requiring tighter timing control and higher gate charge delivery | Select when dead-time tuning or >3-A drive is required; otherwise UCC27282QDDAQ1 offers lower cost and simpler layout |
| LM5109BQDTRQ1 | SOIC-8, 100-V HS, ±2-A peak, no integrated bootstrap diode, no EN pin, no interlock logic | Lacks hardware shoot-through protection and requires external bootstrap diode - increases BOM and layout complexity | Choose only if interlock and integrated diode are unnecessary and cost sensitivity outweighs design robustness needs |
Compared with UCC27289QDDAQ1, UCC27282QDDAQ1 trades programmable dead-time for lower gate drive loss and smaller footprint; versus LM5109BQDTRQ1, it delivers superior system-level reliability via built-in interlock and reduced component count through integrated bootstrap diode.
Availability
UCC27282QDDAQ1 is available at Aetrix Electronics and suitable for automotive DC/DC converters, electric power steering systems, and on-board chargers requiring stable component supply across extended temperature and long-lifecycle programs.
Supply support for UCC27282QDDAQ1 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 delivering analog, embedded processing, and connectivity solutions for automotive, industrial, and personal electronics markets.
The UCC27282QDDAQ1 belongs to TI's automotive-grade gate driver product line, engineered specifically for high-reliability, high-efficiency power conversion in safety-critical electrified vehicle subsystems.
FAQ
What is the maximum allowable voltage on the HS pin of the UCC27282QDDAQ1?
The UCC27282QDDAQ1 specifies a maximum DC voltage of 100 V on the HS pin with respect to VSS. It also tolerates –12 V transient pulses lasting less than 100 ns. Exceeding these limits risks permanent damage. The absolute maximum rating table confirms HS = –10 V to +100 V DC, and –14 V to +100 V for sub-100-ns pulses. Always ensure HB–HS remains ≤16 V per recommended operating conditions.
Does the UCC27282QDDAQ1 have built-in shoot-through protection?
Yes, the UCC27282QDDAQ1 includes hardware-based input interlock logic: when both HI and LI inputs are simultaneously high, the device forces both HO and LO outputs low - eliminating shoot-through risk without introducing fixed dead time or degrading propagation delay. This feature is explicitly documented in Section 7.3.3 and Figure 7-1 of the datasheet.
Is the bootstrap diode in the UCC27282QDDAQ1 truly integrated, and what are its electrical characteristics?
Yes, the UCC27282QDDAQ1 integrates a bootstrap diode with forward voltage of 0.85 V typical at 80 mA and dynamic resistance of 2.5 Ω max. It supports boot capacitor charging during LO conduction and eliminates need for external diode. Electrical specs are verified in Section 6.5 (VF, VFI, RD) and validated across –40°C to +150°C.
What is the function of the EN pin on the UCC27282QDDAQ1, and how does it behave?
The EN pin on the UCC27282QDDAQ1 is an active-high enable input with 2.0-V typical turn-on threshold and 1.21-V falling threshold. When pulled high, it activates both driver outputs; when floating or pulled low, it disables them, reducing supply current to 7 μA. Internal 250-kΩ pulldown ensures safe default-off state - confirmed in Sections 5, 6.5, and 7.3.1.
How does the UCC27282QDDAQ1 handle negative voltage transients on its inputs and HS pin?
The UCC27282QDDAQ1 tolerates –5 V on HI, LI, and EN pins, and –12 V on HS (for <100 ns). This is achieved via robust ESD structures and level-shifter design. Negative transients are explicitly characterized in Absolute Maximum Ratings (Section 6.1) and Feature Description (Section 7.3.6), enabling reliable operation in noisy automotive environments with inductive switching noise.
UCC27282QDDAQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Programmable:
- Not Verified
- Driven Configuration:
- Half-Bridge
- Channel Type:
- Synchronous
- Number of Drivers:
- 2
- Gate Type:
- N-Channel MOSFET
- Voltage - Supply:
- 5.5V ~ 16V
- Logic Voltage - VIL, VIH:
- 1.3V, 1.9V
- Current - Peak Output (Source, Sink):
- 2.5A, 3.5A
- Input Type:
- Non-Inverting
- High Side Voltage - Max (Bootstrap):
- 120 V
- Rise / Fall Time (Typ):
- 12ns, 10ns
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
UCC27282QDDAQ1 FAQ
1.How can I place an order for UCC27282QDDAQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for UCC27282QDDAQ1 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 UCC27282QDDAQ1 reliable?
The price and inventory of UCC27282QDDAQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for UCC27282QDDAQ1 is usually 5 days.
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Once your UCC27282QDDAQ1 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 UCC27282QDDAQ1?
For technical support, including UCC27282QDDAQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UCC27282QDDAQ1 requirements.
6.How does Aetrix verify that UCC27282QDDAQ1 is sourced from the original manufacturer or authorized distributors?
All UCC27282QDDAQ1 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 UCC27282QDDAQ1 meets industry standards.
7.What is the process for return or replacement of UCC27282QDDAQ1?
All UCC27282QDDAQ1 units undergo pre-shipment inspection (PSI). If there is an issue with UCC27282QDDAQ1, 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 UCC27282QDDAQ1 part is unused and in its original packaging.
Return procedure for UCC27282QDDAQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
UCC27282QDDAQ1 Tags
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Diodes Incorporated
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Texas Instruments
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