UC2705NG4 Texas Instruments Integrated Circuit (Dual-In-Line Packages) In Stock
Texas Instruments UC2705NG4 is a MOSFET power driver IC with 1.5A peak output current in a totem-pole complementary output configuration. Features buffer/inverter-based MOSFET driver interface with standard input characteristics, single-function low-side drive design without high-side capability. Available in through-hole 8-pin PDIP package with RoHS-compliant lead-free construction. In stock worldwide with fast shipping.
- Manufacturer
- Texas Instruments
- Package
- Dual-In-Line Packages
- Pin Count
- 8
- Lifecycle
- OBSOLETE
- Datasheet
- UC2705NG4 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 1.5A peak output current in totem-pole configuration enabling rapid charging and discharging of MOSFET gate capacitances for fast switching transitions
- Complementary output polarity with buffer/inverter-based drive architecture simplifying PWM controller to MOSFET gate drive interfacing
- Standard input characteristics ensuring compatibility with common PWM controllers and logic-level drive signals without additional interface circuitry
- Through-hole 8-pin PDIP package (R-PDIP-T8) with RoHS-compliant e4 lead-free construction for prototyping and through-hole PCB designs
Applications
The UC2705NG4 MOSFET power driver is commonly used in switching power supplies to buffer PWM controller outputs and drive power MOSFETs with the high current needed for fast, efficient gate switching in buck, boost, and flyback converter topologies. Its totem-pole complementary output provides both active pull-up and pull-down, minimizing gate drive transition times and reducing switching losses in DC-DC converters operating at frequencies up to several hundred kilohertz. The device is also applied in motor control circuits, electronic ballasts for fluorescent lighting, and solenoid driver circuits requiring robust low-side MOSFET switching.
Specifications
| YTEOL | 0 |
| 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 Functions | 1 |
| Output Characteristics | TOTEM-POLE |
| 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 | 4mA |
| Supply Voltage-Max | 40V |
| Supply Voltage-Min | 5V |
| Supply Voltage-Nom | 20V |
| Supply Voltage1-Max | 40V |
| Supply Voltage1-Min | 5V |
| Supply Voltage1-Nom | 20V |
| Surface Mount | NO |
| Technology | BIPOLAR |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | NICKEL PALLADIUM GOLD |
| 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 | 8542.39.00.60 |
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 UC2705NG4?
The UC2705NG4 provides a nominal peak output current of 1.5A in a totem-pole configuration. This current capability allows it to rapidly charge and discharge MOSFET gate capacitances, enabling fast switching transitions that minimize switching losses. The complementary output polarity provides both active source and sink current paths for efficient bidirectional gate drive.
Does the UC2705NG4 support high-side driving?
No, the UC2705NG4 is configured for low-side MOSFET driving only (High Side Driver: NO). It is designed to drive the gate of N-channel MOSFETs referenced to ground in low-side switch positions within power converter topologies. For half-bridge or high-side drive applications, a dedicated high-side gate driver IC with bootstrap circuitry would be required.
What package does the UC2705NG4 come in?
The UC2705NG4 is housed in an R-PDIP-T8 package (8-pin plastic dual inline package), commonly known as DIP-8 or PDIP. This through-hole package is ideal for prototyping on breadboards and through-hole PCB designs. The NG4 suffix indicates the lead-free (JESD-609 code e4) RoHS-compliant version suitable for modern environmental compliance requirements.
What is the output configuration of the UC2705NG4?
The UC2705NG4 features a totem-pole output with complementary output polarity. The totem-pole configuration uses a push-pull arrangement with both an upper (sourcing) and lower (sinking) transistor, enabling active drive in both charge (turn-on) and discharge (turn-off) directions. This results in faster gate switching compared to single-ended or open-drain output stages.
What are typical applications for the UC2705NG4 MOSFET driver?
Typical applications include PWM converter MOSFET gate drive buffering in switch-mode power supplies, synchronous rectifier control, DC motor speed control circuits, solenoid and relay drive circuits, and electronic lamp ballasts. The UC2705 family is commonly used as a companion driver to UC3842, UC3843, and similar current-mode PWM controller ICs to boost their gate drive current capability.
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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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