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Texas Instruments UCC27201ADDA
- Part No.:
- UCC27201ADDA
- Manufacturer:
- Texas Instruments
- Category:
- Gate Drivers
- Package:
- 8-PowerSOIC (0.154", 3.90mm Width)
- Datasheet:
-
UCC27201ADDA.pdf
- Description:
- IC GATE DRVR HALF-BRIDGE 8SOPWR
- Quantity:
- Payment:
- Shipping:
Inventory:10,009
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Product details
Overview
UCC27201ADDA 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 0.65V/0.65Ω bootstrap diode. It operates with 8V–17V VDD, supports 120V max boot voltage, and delivers robust −18V HS pin tolerance for high-noise power converter applications including solar microinverters and telecom PSUs.
For engineers reviewing the UCC27201ADDA datasheet, UCC27201ADDA pinout, UCC27201ADDA application, or UCC27201ADDA equivalent, this page provides verified technical context, thermal performance data for PowerPAD™ SOIC-8, TTL-compatible input thresholds (1.9–2.7V HI, 1.3–1.9V LI), UVLO thresholds (7.1V VDD rising, 6.7V HB rising), and real-world switching characteristics under 1000pF load (8ns rise/7ns fall).
Technical Context
The UCC27201ADDA implements independent high-side and low-side drivers referenced to HS and VSS respectively, with level-shift circuitry enabling precise timing control across floating high-side operation. Its on-chip bootstrap diode eliminates external discrete diodes while supporting up to 120V differential between HB and HS pins.
It features dual undervoltage lockout (UVLO) circuits - one for VDD (7.1V rising threshold, 0.5V hysteresis) and one for VHB–VHS (6.7V rising threshold, 0.4V hysteresis) - ensuring safe turn-off during supply brownouts. Input logic is TTL-compatible, with 1.6V falling and 2.3V rising thresholds, and internal 68kΩ pulldown resistors enable direct interface with 3.3V/5V controllers without external biasing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDD Range | 8–17 V: Enables compatibility with standard 12V bias rails and wide-bandgap gate drive requirements. |
| Output Current | ±3 A: Sustains fast MOSFET switching with high dV/dt demands in hard-switched converters. |
| Propagation Delay | 22 ns typ: Ensures tight timing control in high-frequency (>200 kHz) power stages. |
| Rise/Fall Time | 8 ns / 7 ns @ 1000 pF: Minimizes transition losses and EMI generation in high-speed designs. |
| Delay Matching | 1 ns typ: Critical for preventing shoot-through in half-bridge configurations by synchronizing HO/LO edges. |
| HS Pin Rating | −18 V transient tolerance: Withstands negative voltage spikes during fast switching transitions in noisy environments. |
| UVLO Thresholds | VDD: 7.1 V rising / 6.6 V falling; VHB–VHS: 6.7 V rising / 6.3 V falling - prevents erratic operation during startup or fault conditions. |
| Operating Temp | −40°C to +150°C junction: Validated for automotive under-hood, industrial UPS, and energy storage systems. |
Pinout & Package
UCC27201ADDA uses the DDA package: 8-pin SOIC with exposed PowerPAD™ thermal pad (4.9 mm × 3.9 mm body), where the pad is electrically isolated from leads but thermally connected to substrate (GND reference). This configuration reduces RθJB to 20°C/W, enabling higher continuous power dissipation than standard SOIC.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD (Pin 1) | Low-side supply input | Decoupled to VSS via 0.22–1.0 μF capacitor; powers LO stage and bootstrap diode anode. |
| HB (Pin 2) | High-side bootstrap supply node | Connects to positive terminal of external bootstrap capacitor; internal diode charges capacitor each cycle. |
| HO (Pin 3) | High-side gate output | Drives high-side MOSFET gate referenced to HS; capable of ±3 A into 1000 pF load. |
| HS (Pin 4) | High-side source reference | Connects to source of high-side MOSFET; serves as return path for bootstrap capacitor and defines HO reference. |
| HI (Pin 5) | High-side input signal | TTL-compatible (1.9–2.7V high); internal 68kΩ pulldown ensures defined state when un-driven. |
| LI (Pin 6) | Low-side input signal | TTL-compatible (1.3–1.9V high); independent control enables flexible PWM, phase-shift, or dead-time management. |
| VSS (Pin 7) | Ground reference | Common return for LO stage, UVLO comparators, and PowerPAD™ thermal pad (internally isolated in DDA). |
| LO (Pin 8) | Low-side gate output | Drives low-side MOSFET gate referenced to VSS; matched timing with HO prevents shoot-through. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Bootstrap Diode | 0.65 V forward voltage / 0.65 Ω dynamic resistance eliminates external diode, reducing BOM count and layout area. |
| Independent HI/LI Inputs | Enables asymmetric PWM, phase-shifted full-bridge, or active-clamp forward control without external logic. |
| −18 V HS Pin Tolerance | Withstands negative transients during fast turn-off, improving reliability in high-dV/dt LLC or resonant converters. |
| Dual UVLO Protection | Separate VDD and VHB–VHS monitoring ensures both drivers disable safely during brownout or bootstrap failure. |
| 1 ns Delay Matching | Guarantees synchronized HO/LO edge transitions, minimizing dead-time uncertainty and preventing shoot-through. |
| PowerPAD™ Thermal Enhancement | Reduces junction-to-board thermal resistance to 20°C/W, supporting >1.5 W continuous dissipation at 100°C ambient. |
Applications
| Solar Microinverter Stage | Telecom PSU Half-Bridge |
|---|---|
|
Use Scenario: DC–AC conversion in distributed photovoltaic systems using interleaved half-bridge inverters with MPPT tracking. IC Role / Device Role / Timing Role: High-frequency gate driver controlling SiC MOSFETs in 100–250 kHz switching cells; HO/LO independently timed for optimized ZVS. Use Value: 22 ns propagation delay and 1 ns matching ensure precise zero-voltage switching window control, reducing switching losses by ≥15% vs. legacy drivers. |
Use Scenario: Primary-side switching in 48 V input, 12 V output telecom rectifiers with synchronous rectification. IC Role / Device Role / Timing Role: Dual-channel driver delivering ±3 A peak current to GaN HEMTs; TTL inputs interface directly with digital PWM controller outputs. Use Value: Integrated bootstrap diode and −18 V HS rating eliminate external components and improve robustness against bus transients in 48 V backplane environments. |
| Online UPS Inverter | Battery Test Equipment |
|
Use Scenario: Bidirectional half-bridge in double-conversion UPS systems requiring seamless transfer between line and battery modes. IC Role / Device Role / Timing Role: Gate driver with dual UVLO ensuring fail-safe shutdown if either VDD or bootstrap supply drops below threshold during mode switch. Use Value: 8–17 V VDD range supports wide input voltage operation; 150°C rated junction enables compact heatsink design in sealed UPS enclosures. |
Use Scenario: Precision programmable load simulation using N-channel MOSFETs in active discharge circuits for EV battery cell testing. IC Role / Device Role / Timing Role: Fast-turning driver enabling accurate current slew rate control (dI/dt) during pulse discharge profiles up to 100 A. Use Value: 8 ns rise time and 3 A output current support sub-microsecond current step transitions, critical for validating battery protection IC response times. |
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 |
|---|---|---|---|
| UCC27201D | Same functionality and pinout, but in standard SOIC-8 (no PowerPAD™); RθJB = 59.6°C/W vs. 20°C/W for DDA. | Lower thermal performance limits continuous current in high-power density designs; suitable for <1 W dissipation. | Select UCC27201D only when board space constraints prohibit thermal pad routing or power levels remain below 0.8 W. |
| LM5109BMAX/NOPB | CMOS-input (not TTL), 1 A output current, no integrated bootstrap diode, 50 ns propagation delay. | Lacks HS negative voltage tolerance (−5 V max), requires external bootstrap diode, lower drive strength limits SiC/GaN use. | Choose LM5109BMAX/NOPB only for cost-sensitive 65–100 kHz Si MOSFET applications where thermal margin is ample and layout allows external diode placement. |
Compared with UCC27201D and LM5109BMAX/NOPB, the UCC27201ADDA uniquely combines TTL compatibility, integrated bootstrap diode, −18 V HS rating, and PowerPAD™ thermal enhancement - making it the only option qualified for high-reliability, high-frequency, high-power-density half-bridge designs in solar, telecom, and industrial UPS systems.
Availability
UCC27201ADDA 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 from authorized channels.
Supply support for UCC27201ADDA 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 over 50 years of innovation in high-reliability power conversion solutions.
The UCC2720xA family was designed specifically for high-efficiency, high-frequency half-bridge and full-bridge power stages - targeting solar optimizers, telecom PSUs, and energy storage systems demanding robust gate drive, integrated bootstrap functionality, and extended temperature operation.
FAQ
What is the input logic type of UCC27201ADDA?
The UCC27201ADDA features TTL-compatible input thresholds: HI input rises at 1.9–2.7 V and falls at 1.3–1.9 V, with 0.7 V hysteresis and internal 68 kΩ pulldown resistors. This allows direct interfacing with 3.3 V or 5 V microcontrollers and digital PWM controllers without level-shifting circuitry. Unlike the CMOS-input UCC27200A variant, the UCC27201ADDA is optimized for legacy and mixed-signal control environments where TTL logic levels are standard.
Does UCC27201ADDA require an external bootstrap diode?
No, the UCC27201ADDA integrates a bootstrap diode with 0.65 V forward voltage and 0.65 Ω dynamic resistance - eliminating the need for an external diode. The anode connects internally to VDD and cathode to HB, enabling automatic charging of the external bootstrap capacitor during each low-side conduction period. This integration reduces PCB area, component count, and potential failure points in high-reliability power converters.
What is the maximum allowable voltage on the HS pin of UCC27201ADDA?
The UCC27201ADDA supports −18 V (repetitive pulse <100 ns) and +120 V (DC) on the HS pin, enabling operation in high-dV/dt environments such as SiC-based resonant converters. This rating is validated per TI's characterization data and allows safe handling of negative transients during fast turn-off without latch-up or damage - a key differentiator versus drivers rated only for −5 V or −10 V on HS.
How does the UVLO function on UCC27201ADDA protect the system?
The UCC27201ADDA implements two independent UVLO circuits: one monitors VDD (7.1 V rising threshold, 0.5 V hysteresis) and forces both HO and LO low if violated; the other monitors VHB–VHS (6.7 V rising threshold, 0.4 V hysteresis) and disables only HO. This dual protection prevents shoot-through during startup, brownouts, or bootstrap capacitor failure - ensuring safe operation in mission-critical UPS and energy storage applications where uncontrolled high-side turn-on could destroy power stages.
What thermal advantages does the DDA package provide for UCC27201ADDA?
The DDA package of UCC27201ADDA incorporates an exposed PowerPAD™ thermal pad that achieves a junction-to-board thermal resistance (RθJB) of 20°C/W - less than one-third that of the standard SOIC-8 (59.6°C/W). When soldered to a 1-in² copper pour, this enables ≥1.5 W continuous power dissipation at 100°C ambient, supporting higher switching frequencies and smaller heatsinks in space-constrained solar and telecom power modules.
UCC27201ADDA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-PowerSOIC (0.154", 3.90mm Width)
- Packaging:
- Bulk
- Product Status:
- Obsolete
- 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-SO PowerPad
UCC27201ADDA FAQ
1.How can I place an order for UCC27201ADDA through Aetrix?
Please submit a Request for Quotation (RFQ) for UCC27201ADDA 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 UCC27201ADDA reliable?
The price and inventory of UCC27201ADDA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for UCC27201ADDA is usually 5 days.
3.What payment methods are accepted for UCC27201ADDA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UCC27201ADDA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for UCC27201ADDA?
UCC27201ADDA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your UCC27201ADDA 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 UCC27201ADDA?
For technical support, including UCC27201ADDA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UCC27201ADDA requirements.
6.How does Aetrix verify that UCC27201ADDA is sourced from the original manufacturer or authorized distributors?
All UCC27201ADDA 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 UCC27201ADDA meets industry standards.
7.What is the process for return or replacement of UCC27201ADDA?
All UCC27201ADDA units undergo pre-shipment inspection (PSI). If there is an issue with UCC27201ADDA, 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 UCC27201ADDA part is unused and in its original packaging.
Return procedure for UCC27201ADDA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
UCC27201ADDA Tags
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