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Texas Instruments UCC27512DRSR
- Part No.:
- UCC27512DRSR
- Manufacturer:
- Texas Instruments
- Category:
- Gate Drivers
- Package:
- 6-WDFN Exposed Pad
- Datasheet:
-
UCC27512DRSR.pdf
- Description:
- IC GATE DRVR LOW-SIDE 6SON
- Quantity:
- Payment:
- Shipping:
Inventory:814
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Product details
Overview
UCC27512DRSR from Texas Instruments is a single-channel, high-speed, low-side MOSFET/IGBT gate driver with 4-A peak source and 8-A peak sink current, 13-ns typical propagation delay, and 4.5-V to 18-V supply range - designed for driving GaN power devices and high-frequency DC-DC converters.
For engineers reviewing the UCC27512DRSR datasheet, UCC27512DRSR pinout, UCC27512DRSR application, or UCC27512DRSR equivalent, key selection considerations include its WSON-6 package thermal performance (θJA = 85.6°C/W), asymmetrical drive architecture, UVLO protection, TTL/CMOS-compatible input thresholds independent of VDD, and inverting/noninverting dual-input flexibility.
Technical Context
The UCC27512DRSR uses a robust bipolar-CMOS-DMOS output stage delivering rail-to-rail drive with minimal shoot-through risk. Its dual-input logic allows configurable inverting or noninverting operation via IN+ and IN− pins, with internal pullup/pulldown ensuring safe low-state default when inputs float.
Unlike the split-output UCC27511, the UCC27512DRSR integrates sourcing and sinking into a single OUT pin - simplifying layout while retaining 4-A/8-A asymmetrical drive and strong Miller immunity via low 0.375-Ω pulldown resistance at 12 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Output Current | 4 A source / 8 A sink - enables fast switching of high-Qg GaN FETs and IGBTs with controlled dV/dt |
| Propagation Delay | 13 ns typical - supports >10 MHz PWM operation with minimal timing skew in digital power controllers |
| Supply Voltage Range | 4.5 V to 18 V - compatible with 5 V, 12 V, and 15 V bias rails; enables direct interface with microcontrollers and GaN drivers |
| Input Threshold Logic | TTL/CMOS-compatible with fixed thresholds (VIN_H = 2.4 V typ, VIN_L = 1.2 V typ) - ensures reliable triggering across supply voltages |
| UVLO Threshold | Rising: 4.20 V typ; Hysteresis: 0.3 V - guarantees glitch-free startup/shutdown and prevents partial turn-on during brownout |
| Thermal Resistance | θJA = 85.6°C/W (WSON-6) - delivers 2.5× better thermal performance than SOT-23-6 (θJA = 217.8°C/W) for high-power-density designs |
| Operating Temperature | –40°C to +140°C junction - qualified for industrial, motor control, and solar inverter environments |
Pinout & Package
UCC27512DRSR is housed in a thermally enhanced 3-mm × 3-mm WSON-6 package with exposed thermal pad (DRS suffix), optimized for PCB heat dissipation and high-current routing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - IN+ | Noninverting input | Active-high enable: drives OUT high when asserted; tied to VDD to enable inverting mode |
| 2, 5 - GND | Power and signal ground | Dual ground pins reduce impedance; must be connected close to device on PCB for stable switching |
| 3 - VDD | Bias supply input | Accepts 4.5–18 V; powers internal logic and output stage; UVLO circuit monitors this pin |
| 4 - OUT | Combined gate-drive output | Sources up to 4 A and sinks up to 8 A - eliminates need for external parallel FETs in high-dI/dt applications |
| 6 - IN− | Inverting input | Active-low enable: drives OUT low when asserted; tied to GND to enable noninverting mode |
Key Features
| Feature | Design Value |
|---|---|
| Asymmetrical 4-A/8-A drive | Stronger sink current suppresses Miller-induced false turn-on in high-dV/dt half-bridge topologies |
| Dual-input logic (IN+/IN−) | Enables flexible configuration: inverting, noninverting, or enable/disable function without external logic |
| UVLO with 0.3-V hysteresis | Prevents erratic output behavior during power ramp-up/down - critical for system-level safety compliance |
| Input voltage tolerance | IN+/IN− accept –0.3 V to 20 V regardless of VDD - simplifies level-shifting in auxiliary bias circuits |
| Fixed TTL/CMOS thresholds | Thresholds independent of VDD allow reliable interfacing with 3.3-V, 5-V, or 12-V controllers without resistor dividers |
Applications
| Motor Drive Half-Bridge | Solar DC-DC Optimizer |
|---|---|
|
Use Scenario: Driving high-side and low-side GaN FETs in a 100-kHz synchronous buck converter for servo motor control. IC Role / Device Role / Timing Role: Low-side gate driver providing precise, high-current turn-on/turn-off timing to minimize conduction and switching losses. Use Value: 13-ns propagation delay and 7-ns fall time ensure tight dead-time control and reduce shoot-through risk in fast-switching GaN stages. |
Use Scenario: Gate-driving enhancement-mode GaN transistors in module-integrated DC optimizers for residential PV panels. IC Role / Device Role / Timing Role: High-speed, thermally robust gate driver enabling >500-kHz operation under wide ambient temperature swings (–40°C to +85°C). Use Value: WSON-6 package with θJA = 85.6°C/W sustains full 8-A sink capability at 140°C junction temperature without derating. |
| Industrial UPS Inverter | Digital Power Supply Controller Companion |
|
Use Scenario: Driving IGBTs in a 16-kHz three-phase inverter stage of a 5-kVA uninterruptible power supply. IC Role / Device Role / Timing Role: Low-side driver delivering 8-A sink current to rapidly discharge IGBT gates and prevent Miller-induced latch-up. Use Value: 0.375-Ω pulldown resistance at 12 V ensures sub-10-ns fall time into 1.8-nF load - critical for maintaining waveform fidelity at high bus voltages. |
Use Scenario: Paired with TI's UCD3138 digital power controller to drive primary-side MOSFETs in an isolated LLC resonant converter. IC Role / Device Role / Timing Role: Interface IC translating PWM signals into high-current gate pulses with minimal latency and jitter. Use Value: Dual-input logic allows IN− to serve as hardware fault-disable signal from controller's FAULT pin, enabling cycle-by-cycle shutdown. |
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 |
|---|---|---|---|
| UCC27511DBVR | SOT-23-6 package; split OUTH/OUTL outputs; higher θJA (217.8°C/W); identical electrical specs | Better suited for space-constrained layouts requiring independent turn-on/turn-off resistor placement | Select UCC27511DBVR only if split-output control or smaller footprint (2.9 mm × 1.6 mm) outweighs thermal limitations. |
| LM5113SDX/NOPB | 4-A/6-A drive; 15-V max VDD; no dual-input logic; requires external enable; different pinout | Targeted at automotive-grade 12-V systems with AEC-Q100 qualification; lacks IN+/IN− configurability | Choose LM5113SDX/NOPB only for AEC-Q100-compliant designs where dual-input flexibility is not required. |
Compared with UCC27512DRSR, UCC27511DBVR trades thermal performance for layout flexibility via split outputs, while LM5113SDX/NOPB sacrifices input configurability and supply range for automotive qualification - making UCC27512DRSR optimal for high-density, high-temperature industrial and GaN-focused designs.
Availability
UCC27512DRSR is available at Aetrix Electronics and suitable for switched-mode power supplies, solar DC-DC optimizers, and motor control inverters requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for UCC27512DRSR 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 industrial, automotive, and communications markets.
The UCC27512DRSR belongs to TI's UCC2751x family of high-speed low-side gate drivers - engineered specifically for emerging wide-bandgap power devices (GaN, SiC) and high-frequency digital power architectures.
FAQ
What is the maximum operating junction temperature for the UCC27512DRSR?
The UCC27512DRSR is rated for continuous operation from –40°C to +140°C junction temperature. This rating is validated per JEDEC JESD22-A108 and supported by thermal metrics including θJA = 85.6°C/W (WSON-6). At 140°C, the device maintains full 4-A/8-A peak current capability and UVLO functionality - critical for solar inverters and industrial motor drives.
Does the UCC27512DRSR support both inverting and noninverting configurations?
Yes, the UCC27512DRSR supports both modes using its dual-input architecture: tie IN− to GND and drive IN+ for noninverting operation; tie IN+ to VDD and drive IN− for inverting operation. Unused input must be biased - floating inputs force OUT low. This flexibility eliminates external inverters in digital power controller interfaces.
How does the UCC27512DRSR differ from the UCC27511 in pinout and functionality?
The UCC27512DRSR consolidates gate drive into a single OUT pin (pin 4), whereas the UCC27511 uses separate OUTH (pin 2) and OUTL (pin 3). The UCC27512DRSR has six pins arranged as IN+, GND, VDD, OUT, GND, IN− (top view), eliminating the split-output optimization but improving layout simplicity and thermal performance via its WSON-6 package.
What is the purpose of the dual GND pins (pins 2 and 5) on the UCC27512DRSR?
Pins 2 and 5 are both ground terminals - one serves as power ground for the output stage, the other as reference for input logic and bias circuitry. TI recommends connecting both directly to a low-impedance ground plane near the device to minimize ground bounce, reduce EMI, and maintain noise immunity - especially critical during 8-A sink transitions.
Can the UCC27512DRSR safely drive GaN power transistors?
Yes, the UCC27512DRSR is explicitly designed for GaN FETs: its 4.5–18-V supply range supports low-voltage GaN gate requirements; 13-ns propagation delay and 7-ns fall time enable >1-MHz switching; and strong 8-A sink current suppresses Miller turn-on. TI's SLUSAW9F datasheet cites GaN compatibility in Applications and Feature sections.
UCC27512DRSR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 6-WDFN Exposed Pad
- 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:
- 4.5V ~ 18V
- Logic Voltage - VIL, VIH:
- 1V, 2.4V
- Current - Peak Output (Source, Sink):
- 4A, 8A
- Input Type:
- Inverting, Non-Inverting
- High Side Voltage - Max (Bootstrap):
- -
- Rise / Fall Time (Typ):
- 8ns, 7ns
- Operating Temperature:
- -40°C ~ 140°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-SON (3x3)
UCC27512DRSR FAQ
1.How can I place an order for UCC27512DRSR through Aetrix?
Please submit a Request for Quotation (RFQ) for UCC27512DRSR 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 UCC27512DRSR reliable?
The price and inventory of UCC27512DRSR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for UCC27512DRSR is usually 5 days.
3.What payment methods are accepted for UCC27512DRSR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UCC27512DRSR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for UCC27512DRSR?
UCC27512DRSR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your UCC27512DRSR 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 UCC27512DRSR?
For technical support, including UCC27512DRSR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UCC27512DRSR requirements.
6.How does Aetrix verify that UCC27512DRSR is sourced from the original manufacturer or authorized distributors?
All UCC27512DRSR 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 UCC27512DRSR meets industry standards.
7.What is the process for return or replacement of UCC27512DRSR?
All UCC27512DRSR units undergo pre-shipment inspection (PSI). If there is an issue with UCC27512DRSR, 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 UCC27512DRSR part is unused and in its original packaging.
Return procedure for UCC27512DRSR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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