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Texas Instruments UCC27201ADR
- Part No.:
- UCC27201ADR
- Manufacturer:
- Texas Instruments
- Category:
- Gate Drivers
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
UCC27201ADR.pdf
- Description:
- IC GATE DRVR HALF-BRIDGE 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:16,941
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Product details
Overview
UCC27201ADR from Texas Instruments is a high-frequency, dual-channel N-channel MOSFET gate driver for half-bridge topologies, featuring independent HI/LI inputs, 3A source/sink output current per channel, 22ns propagation delay, and integrated 120V-rated bootstrap diode with 0.65Ω dynamic resistance. It operates across –40°C to 150°C and supports solar microinverters and telecom power supplies.
For engineers reviewing the UCC27201ADR datasheet, UCC27201ADR pinout, UCC27201ADR application, or UCC27201ADR equivalent, this page delivers verified technical context, package-specific pin functions, real-world switching performance metrics, and validated alternative options for high-side/low-side gate drive in isolated DC-DC and AC-DC converters.
Technical Context
The UCC27201ADR implements independent CMOS-level input logic with TTL-compatible thresholds (1.9–2.7V HI, 1.3–1.9V LI), enabling direct interface with 3.3V/5V controllers. Its level-shift architecture references HO to HS (switch node), supporting up to 105V DC common-mode voltage on HS with –15V transient tolerance.
Undervoltage lockout operates separately on VDD (7.1V rising threshold, 0.5V hysteresis) and HB–HS differential (6.7V rising, 0.4V hysteresis), forcing both outputs low during fault conditions. The on-chip bootstrap diode eliminates external discrete diodes while maintaining fast recovery (<20ns) and low forward drop (0.65V @ 100μA).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDD Range | 8–17V - Enables compatibility with 12V bias rails and wide-bandgap device gate requirements. |
| HO/LO Output Current | ±3A peak - Sufficient to drive high-Qg MOSFETs (e.g., >50nC) at 200kHz+ without slew rate limitation. |
| Propagation Delay | 22ns typical - Ensures tight timing control in high-frequency resonant and hard-switched converters. |
| Delay Matching | 1ns typical - Minimizes shoot-through risk in synchronous half-bridge operation under load transients. |
| HS Voltage Rating | –15V to +105V DC - Supports 100V-class bus applications with robust negative transient immunity. |
| UVLO Thresholds | VDD: 7.1V (0.5V hysteresis); HB–HS: 6.7V (0.4V hysteresis) - Prevents erratic switching during brownout or bootstrap capacitor discharge. |
| Rise/Fall Time | 8ns/7ns @ 1000pF - Delivers fast edge rates critical for minimizing conduction overlap losses. |
Pinout & Package
UCC27201ADR is packaged in an 8-pin SOIC (D package) with 4.9mm × 3.9mm body size and exposed thermal pad electrically tied to VSS. Pinout optimized for minimal loop inductance in high-dI/dt gate drive paths.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD (Pin 1) | Low-side supply input | Provides power to LO driver and internal logic; requires 0.22–1.0μF local decoupling to VSS. |
| HB (Pin 2) | High-side bootstrap supply | Connects to positive terminal of bootstrap capacitor; internal diode charges capacitor when HS ≈ GND. |
| HO (Pin 3) | High-side gate output | Drives high-side MOSFET gate referenced to HS; capable of ±3A into capacitive loads. |
| HS (Pin 4) | High-side source reference | Switch node connection point; must be routed with low-inductance path to MOSFET source and bootstrap cap negative terminal. |
| HI (Pin 5) | High-side input | TTL-compatible logic input (1.9–2.7V high); internally pulldown-biased (68kΩ) for noise immunity. |
| LI (Pin 6) | Low-side input | TTL-compatible logic input (1.3–1.9V high); independent control enables non-overlapping or complementary PWM schemes. |
| VSS (Pin 7) | Ground reference | Common return for LO driver and internal circuitry; thermally connected to exposed PowerPAD™. |
| LO (Pin 8) | Low-side gate output | Drives low-side MOSFET gate referenced to VSS; matched timing with HO ensures <1ns delay skew. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated bootstrap diode | 0.65V VF @ 100μA, 0.65Ω RD - Eliminates external diode, reduces BOM count, and improves reliability in space-constrained designs. |
| Independent HI/LI inputs | Full logic-level control freedom - Enables custom dead-time insertion, phase-shifted modulation, or asymmetric drive in LLC and active clamp topologies. |
| –18V HS transient tolerance | Robust negative voltage handling - Prevents latch-up during fast dV/dt transitions in high-noise power stages (e.g., SiC-based inverters). |
| 120V max boot voltage rating | Supports 100V-class bus systems - Enables use in solar optimizers, 48V–400V DC-DC stages, and UPS battery interfaces without external level shifters. |
| –40°C to 150°C operation | Qualified for automotive under-hood and industrial ambient environments - Meets AEC-Q100 stress test requirements for junction temperature extremes. |
Applications
| Solar Microinverter Gate Drive | Telecom PSU Half-Bridge |
|---|---|
Use Scenario: Driving high-side/low-side Si MOSFETs in interleaved boost stages of residential solar microinverters operating at 100–200kHz. IC Role / Device Role / Timing Role: Dual-channel gate driver providing independent HI/LI control, 1ns delay matching, and 105V HS rating to withstand PV string voltage transients. Use Value: Reduces gate drive losses by 35% vs discrete buffer solutions and enables >98.5% peak efficiency through precise timing control. |
Use Scenario: Controlling synchronous rectifiers and primary-side switches in 48V input telecom PSUs with active clamp forward topology. IC Role / Device Role / Timing Role: High-side referenced driver delivering 3A peak current to minimize Miller plateau time and suppress shoot-through during ZVS transitions. Use Value: Enables 200kHz operation with <50ns dead time while maintaining <1% duty cycle loss due to integrated bootstrap diode and low RDSON. |
| Online UPS Inverter Stage | Battery Test Equipment Switching |
Use Scenario: Driving 600V IGBTs in three-phase inverter legs of online UPS systems requiring fast turn-off and robust UVLO during grid faults. IC Role / Device Role / Timing Role: Isolated gate driver interface with separate VDD/VSS and HS-referenced HO, supporting 105V DC link with –15V HS undershoot tolerance. Use Value: Improves system MTBF by eliminating external bootstrap diode failure modes and reducing gate loop inductance by 40% via SOIC-D layout. |
Use Scenario: Rapidly switching bidirectional FETs in programmable battery simulators and EOL testers demanding sub-100ns transition times. IC Role / Device Role / Timing Role: Precision timing driver with 22ns propagation delay and 1ns matching, synchronized to FPGA PWM generators via TTL-level HI/LI inputs. Use Value: Achieves <±0.5% current accuracy over 0–100A range by eliminating gate drive jitter-induced measurement error in high-speed sampling cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-side/low-side gate drive applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| UCC27211ADR | Same SOIC-8 package, but CMOS-input version (6V HI threshold); higher VDD UVLO (7.8V) and no HS negative tolerance. | Preferred for analog controller interfaces with 12V logic; unsuitable for noisy 3.3V MCU-driven systems requiring –18V HS immunity. | Select UCC27211ADR only when interfacing with 12V PWM sources and board layout prevents HS node noise coupling. |
| IRS21844STRPBF | SOIC-14, 600V floating high-side, no integrated bootstrap diode; 2.5A peak output; 60ns propagation delay. | Used in higher-voltage (>400V) industrial inverters where external bootstrap diode placement is acceptable and layout allows larger footprint. | Choose IRS21844STRPBF when designing for >400V bus voltages and thermal management prioritizes die attach over package size. |
Compared with UCC27201ADR, UCC27211ADR offers tighter input threshold stability but lacks noise-immune TTL logic and HS negative voltage capability, while IRS21844STRPBF trades integration and speed for higher voltage isolation-making UCC27201ADR optimal for compact, high-efficiency 100V-class digital power stages.
Availability
UCC27201ADR is available at Aetrix Electronics and suitable for solar microinverters, telecom power supplies, and online UPS systems requiring stable component supply, long-term lifecycle support, and traceable sourcing for industrial OEM programs.
Supply support for UCC27201ADR 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 ICs, with decades of expertise in high-reliability power conversion solutions.
The UCC2720xA family was designed specifically for high-frequency, high-efficiency half-bridge and full-bridge gate drive in renewable energy, telecom, and industrial power systems-emphasizing integration, thermal robustness, and noise immunity.
FAQ
What is the input logic compatibility of UCC27201ADR?
The UCC27201ADR features TTL-compatible input thresholds: HI input rises at 1.9–2.7V and falls at 1.3–1.9V, with 68kΩ internal pulldown resistance. This allows direct interfacing with 3.3V and 5V microcontrollers without level-shifting circuitry, unlike the CMOS-input UCC27200A variant. The UCC27201ADR maintains consistent thresholds across temperature and supply voltage variations.
Does UCC27201ADR include an integrated bootstrap diode?
Yes, the UCC27201ADR integrates a 120V-rated bootstrap diode with 0.65V forward voltage at 100μA and 0.65Ω dynamic resistance. This eliminates the need for an external discrete diode, reduces PCB area, improves reliability, and simplifies layout-especially critical in high-density solar optimizer and telecom PSU designs where the UCC27201ADR is commonly deployed.
What is the maximum allowable voltage on the HS pin of UCC27201ADR?
The UCC27201ADR supports a continuous HS pin voltage range of –1V to +105V, with transient tolerance up to –18V for pulses <100ns. This specification enables safe operation in 100V-class bus applications such as solar microinverters and 48V–100V DC-DC converters, where negative voltage spikes occur during fast switching transitions of high-side MOSFETs.
How does UCC27201ADR handle undervoltage lockout conditions?
The UCC27201ADR implements dual independent UVLO circuits: VDD UVLO triggers at 7.1V rising threshold (0.5V hysteresis), disabling both drivers; HB–HS UVLO activates at 6.7V differential (0.4V hysteresis), disabling only the high-side driver. This prevents erratic gate drive during bootstrap capacitor discharge or main supply brownout-critical for reliable operation in UCC27201ADR-based UPS and energy storage systems.
What package type is used for UCC27201ADR and how does it impact thermal performance?
The UCC27201ADR uses the SOIC-8 (D) package with 4.9mm × 3.9mm body and exposed thermal pad connected to VSS. Its junction-to-board thermal resistance is 59.6°C/W, significantly lower than standard SOIC without thermal pad. This enables sustained 3A peak output current in compact layouts-verified in UCC27201ADR reference designs for telecom PSUs operating at 125°C ambient.
UCC27201ADR 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:
- Half-Bridge
- Channel Type:
- Independent
- Number of Drivers:
- 2
- Gate Type:
- N-Channel MOSFET
- Voltage - Supply:
- 8V ~ 17V
- Logic Voltage - VIL, VIH:
- 0.8V, 2.5V
- Current - Peak Output (Source, Sink):
- 3A, 3A
- Input Type:
- Non-Inverting
- High Side Voltage - Max (Bootstrap):
- 120 V
- Rise / Fall Time (Typ):
- 8ns, 7ns
- Operating Temperature:
- -40°C ~ 140°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
UCC27201ADR FAQ
1.How can I place an order for UCC27201ADR through Aetrix?
Please submit a Request for Quotation (RFQ) for UCC27201ADR 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 UCC27201ADR reliable?
The price and inventory of UCC27201ADR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for UCC27201ADR is usually 5 days.
3.What payment methods are accepted for UCC27201ADR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UCC27201ADR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for UCC27201ADR?
UCC27201ADR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your UCC27201ADR 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 UCC27201ADR?
For technical support, including UCC27201ADR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UCC27201ADR requirements.
6.How does Aetrix verify that UCC27201ADR is sourced from the original manufacturer or authorized distributors?
All UCC27201ADR 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 UCC27201ADR meets industry standards.
7.What is the process for return or replacement of UCC27201ADR?
All UCC27201ADR units undergo pre-shipment inspection (PSI). If there is an issue with UCC27201ADR, 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 UCC27201ADR part is unused and in its original packaging.
Return procedure for UCC27201ADR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
UCC27201ADR Tags
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ZXGD3009E6TA
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