Overview
The UC3706DW is a dual-channel gate driver produced by Texas Instruments. It is designed to interface between low-level control functions and high-power switching devices, particularly power MOSFETs. This device is part of the UC1706 family and is fabricated using a high-speed Schottky process. The UC3706DW is available in a 16-pin SOIC (DW) package and operates over a temperature range of 0°C to 70°C.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Output Current (each channel) | 1.5 A | A |
| Rise and Fall Time into 1000 pF | 40 ns | ns |
| Supply Voltage (VDD) | 5 to 40 V | V |
| Operating Temperature Range | 0 to 70 °C | °C |
| Package Type | SOIC-16 | |
| Number of Pins | 16 | |
| Digital Input Low Level | 0.8 V | V |
| Digital Input High Level | 2.2 V | V |
| Output High Saturation Voltage (VC-VO) | 2.0 V | V |
| Output Low Saturation Voltage (VO) | 0.4 V | V |
Key Features
- Dual, 1.5A Totem Pole Outputs
- 40ns Rise and Fall into 1000pF
- Parallel or Push-Pull Operation
- Single-Ended to Push-Pull Conversion
- High-Speed, Power MOSFET Compatible
- Low Cross-Conduction Current Spike
- Analog, Latched Shutdown
- Internal Deadband Inhibit Circuit
- Low Quiescent Current
- Thermal Shutdown Protection
Applications
The UC3706DW is suitable for various high-power switching applications, including:
- Transformer Coupled Push-Pull MOSFET Drive Circuits
- Power Bipolar Drive Circuits
- Converting Single Output PWMs to High Current Push-Pull Configurations
- Driving high-frequency inductive loads with external diodes
Q & A
- What is the output current capability of the UC3706DW?
The UC3706DW can source or sink up to 1.5A per channel.
- What is the rise and fall time of the UC3706DW into a 1000pF load?
The rise and fall time is 40ns.
- What is the operating temperature range of the UC3706DW?
The operating temperature range is 0°C to 70°C.
- What package types are available for the UC3706DW?
The UC3706DW is available in a 16-pin SOIC (DW) package and other surface mount packages.
- Does the UC3706DW support parallel operation of its outputs?
- What protection features are included in the UC3706DW?
The device includes pulse-by-pulse current limiting, automatic deadband control, and thermal shutdown protection.
- Can the UC3706DW be used with low supply voltages?
The device can operate with supply voltages from 5V to 40V, though some response time degradation may occur at lower voltages.
- How does the thermal shutdown protection work in the UC3706DW?
If the chip temperature reaches approximately 155°C, both outputs are driven to the low state to protect the device.
- What is the purpose of the internal flip-flop in the UC3706DW?
The internal flip-flop allows for single-ended to push-pull conversion and alternates the two outputs when activated.
- Can the UC3706DW be used in high-frequency applications?
