UC3705N Texas Instruments Integrated Circuit (Dual-In-Line Packages) In Stock
The UC3705N is a high-speed MOSFET power driver IC from Texas Instruments, capable of sourcing and sinking 1.5A peak currents with supply voltages from 5V to 40V. Housed in an 8-pin PDIP package, it features a totem-pole output and standard input interface, making it ideal for driving power MOSFETs in switching power supply applications. Available from authorized distributors with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Dual-In-Line Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- UC3705N 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
- 1.5A peak source/sink current capability for robust MOSFET gate drive
- Wide supply voltage range from 5V to 40V for versatile power system design
- Single-channel totem-pole output enabling high-speed switching transitions
- Standard TTL/CMOS compatible input interface for easy control circuit integration
Applications
The UC3705N is widely used in switching power supply designs where fast, high-current MOSFET gate drive is required. It excels in DC-DC converters, motor drive circuits, and offline power conversion stages where a dedicated buffer driver reduces switching losses. Its wide supply range also makes it suitable for industrial and automotive power management applications.
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 | 1.5A |
| Output Peak Current Limit-Nom | 1.5A |
| Output Polarity | COMPLEMENTARY |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | DIP8,.3 |
| Package Shape | RECTANGULAR |
| Package Style | IN-LINE |
| Qualification Status | Not Qualified |
| Supply Current-Max | 12mA |
| Supply Voltage-Max | 40V |
| Supply Voltage-Min | 5V |
| Supply Voltage-Nom | 20V |
| Surface Mount | NO |
| Technology | BIPOLAR |
| 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 | 0.06 µs |
| Turn-on Time | 0.06 µs |
| 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 UC3705N:
Frequently Asked Questions
What is the output current capability of the UC3705N?
The UC3705N can source and sink up to 1.5A peak gate drive current, allowing it to rapidly charge and discharge MOSFET gates for fast switching transitions and reduced switching losses in power supply designs.
What supply voltage range does the UC3705N support?
The UC3705N operates over a supply voltage range of 5V to 40V, providing design flexibility for a wide variety of power conversion topologies including 12V, 24V, and 36V bus systems commonly found in industrial and telecom applications.
What package does the UC3705N come in?
The UC3705N is housed in an 8-pin PDIP (Plastic Dual In-Line Package) with a 0.3-inch row spacing, which allows easy installation on through-hole PCBs and breadboards for prototyping and production applications.
Can the UC3705N drive high-side MOSFETs?
The UC3705N is configured as a low-side driver without a built-in bootstrap circuit, so it is best suited for low-side MOSFET switching. For high-side drive, an external bootstrap or isolated gate drive circuit would be required in the application.
What are typical applications for the UC3705N?
Typical applications include switch-mode power supplies, DC-DC converters, PWM motor controllers, and other circuits that require a dedicated single-channel MOSFET gate driver capable of handling wide supply voltages up to 40V with 1.5A drive current.
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About Texas Instruments
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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