UCC27321DGNR Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The UCC27321DGNR is a high-speed, single-channel, low-side MOSFET gate driver from Texas Instruments capable of sourcing and sinking 9A peak output current. It features an inverting input, totem-pole output, and operates over a wide voltage range, housed in an 8-pin HVSSOP package with an exposed thermal pad for enhanced heat dissipation in demanding power conversion applications.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- UCC27321DGNR Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 105.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 9A peak source and sink current for fast MOSFET switching
- Single-channel low-side inverting gate driver
- Totem-pole output for rail-to-rail drive capability
- 8-pin HVSSOP package with exposed thermal pad
- Wide input voltage range compatible with standard logic levels
- Lead-free and RoHS compliant (JESD-609 e4)
Applications
The UCC27321DGNR is commonly used in synchronous buck converters, half-bridge and full-bridge power stages, and DC-DC converter designs where high-speed, high-current MOSFET gate driving is essential. Its 9A drive capability and inverting input make it suitable for industrial power supplies, motor drive circuits, and server power management systems.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| High Side Driver | NO |
| Input Characteristics | STANDARD |
| Interface IC Type | BUFFER OR INVERTER BASED MOSFET DRIVER |
| JESD-30 Code | S-PDSO-G8 |
| JESD-609 Code | e4 |
| Number of Channels | 1 |
| Number of Functions | 1 |
| Output Characteristics | TOTEM-POLE |
| Output Current-Max | 9A |
| Output Peak Current Limit-Nom | 9A |
| Output Polarity | INVERTED |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP8,.19 |
| Package Shape | SQUARE |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Supply Current-Max | 0.65mA |
| Supply Voltage-Max | 15V |
| Supply Voltage-Min | 4V |
| Supply Voltage-Nom | 14V |
| Surface Mount | YES |
| Technology | BICMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Turn-off Time | 0.07 µs |
| Turn-on Time | 0.07 µs |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
| Country of Origin | Malaysia |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the peak output current of the UCC27321DGNR gate driver?
The UCC27321DGNR is capable of delivering a peak output current of 9A in both source and sink directions. This high drive strength allows fast switching of large MOSFETs, reducing switching losses and improving efficiency in high-frequency power conversion applications such as synchronous buck converters.
Is the UCC27321DGNR a high-side or low-side driver?
The UCC27321DGNR is a single-channel low-side MOSFET gate driver with an inverting input configuration. It is designed to drive the low-side switch in power converter topologies, providing a totem-pole output referenced to the system ground. It is not suitable as a standalone high-side driver without additional bootstrap circuitry.
What package does the UCC27321DGNR use and why does it matter?
The UCC27321DGNR is housed in an 8-pin HVSSOP (High-Voltage Shrink Small Outline Package) with an exposed thermal pad. The exposed pad improves thermal conductivity to the PCB, helping dissipate heat generated during high-current switching operations, which is critical in applications with high duty cycles or elevated ambient temperatures.
Is the UCC27321DGNR RoHS and lead-free compliant?
Yes, the UCC27321DGNR carries a JESD-609 'e4' code and a 'Yes' Pb-free code, confirming that it is lead-free and fully RoHS compliant. It is suitable for use in environmentally regulated markets and applications requiring green material compliance.
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Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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