UCC37321P Texas Instruments Integrated Circuit (Dual-In-Line Packages) In Stock
The UCC37321P is a single-channel 9A peak inverting MOSFET gate driver from Texas Instruments with a totem-pole output and 4V to 15V supply range. It provides fast turn-on and turn-off of power MOSFETs and IGBTs for switching power supply applications. Available in an 8-pin PDIP package with worldwide shipping from stock.
- Manufacturer
- Texas Instruments
- Package
- Dual-In-Line Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- UCC37321P Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- ?°C to 70.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 9A peak source and sink current capability enables ultra-fast gate charging of large power MOSFETs and IGBTs
- Inverting input logic allows direct connection to PWM controllers with active-high outputs for simplified gate drive design
- Wide 4V to 15V supply range supports both 5V logic-referenced and 12V gate drive supply configurations
- Totem-pole output stage minimizes cross-conduction time for low shoot-through loss during high-frequency switching
Applications
The UCC37321P is used as a gate driver in high-frequency switching power supplies, DC-DC converters, and motor drive circuits where fast MOSFET switching is required to minimize switching losses. Its 9A peak drive current is well-suited for driving large-die MOSFETs in synchronous rectifier stages and half-bridge topologies. The device is also employed in inverter designs and resonant converter applications where precise gate timing and low propagation delay are critical.
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 | R-PDIP-T8 |
| 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 | DIP8,.3 |
| Package Shape | RECTANGULAR |
| Package Style | IN-LINE |
| Qualification Status | Not Qualified |
| Supply Current-Max | 0.65mA |
| Supply Voltage-Max | 15V |
| Supply Voltage-Min | 4V |
| Supply Voltage-Nom | 14V |
| Surface Mount | NO |
| Technology | BICMOS |
| Temperature Grade | COMMERCIAL |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 2.54mm |
| Terminal Position | DUAL |
| Turn-off Time | 0.07 µs |
| Turn-on Time | 0.07 µs |
| ## UCC37321P Alternates Showing results | Image |
| Package | Dual-In-Line Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
| Country of Origin | Mexico |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for UCC37321P:
Frequently Asked Questions
What is the peak output current of the UCC37321P?
The UCC37321P provides 9A peak output current in both source and sink directions, enabling very fast charging and discharging of large MOSFET gate capacitances. This high peak drive current reduces switching transition times and minimizes switching losses in high-frequency power conversion circuits.
Is the UCC37321P an inverting or non-inverting gate driver?
The UCC37321P is an inverting gate driver, meaning a logic-high input signal produces a logic-low (gate pull-down) output, and a logic-low input produces a high-side gate drive output. This inverting behavior allows direct interfacing with PWM controllers that have active-high drive outputs without additional inversion logic.
What is the supply voltage range for the UCC37321P?
The UCC37321P operates from a supply voltage of 4V to 15V, which accommodates both 5V digital logic supply levels and 12V gate drive rails commonly used in power electronics. This flexibility makes it easy to integrate into existing power supply designs without requiring a dedicated gate drive power supply in many cases.
What package does the UCC37321P come in?
The UCC37321P is available in an 8-pin PDIP (Plastic Dual In-line Package) package, which is a through-hole package suitable for prototyping, test fixtures, and low-volume production designs. The PDIP package provides robust pin connections and is easily hand-solderable for development and evaluation purposes.
What types of power switches can the UCC37321P drive?
The UCC37321P is designed to drive power MOSFETs and IGBTs used in switching power supplies, motor controllers, and inverters. Its 9A peak current capability is sufficient to quickly charge the gate capacitance of high-current power devices, making it appropriate for applications with switching frequencies from several hundred kHz up to several MHz depending on the gate charge of the selected switch.
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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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