Texas Instruments UC3707DWTR

Overview

UC3707DWTR from Texas Instruments is a dual-channel high-speed power MOSFET driver IC designed for interfacing low-level logic with high-power switching devices. It delivers ±1.5 A peak output current per channel, operates from 5 V to 40 V supply rails (VIN and VC independently), and features inverting/non-inverting inputs, analog/digital shutdown with optional latch, and thermal shutdown protection. It is used in DC-DC converters, motor drives, and half-bridge gate drive circuits.

For engineers reviewing the UC3707DWTR datasheet, UC3707DWTR pinout, UC3707DWTR application, or UC3707DWTR equivalent, key selection criteria include its 16-pin SOIC-DW package, 40 ns rise/fall time into 1000 pF, dual independent channel control, analog shutdown threshold of 100–160 mV, and operation across 0°C to +70°C ambient temperature.

Technical Context

The UC3707DWTR integrates two independent totem-pole output stages fabricated in a high-speed Schottky process, each capable of sourcing or sinking up to 1.5 A transient current. Its dual-input architecture supports both inverting and non-inverting logic control per channel, enabling flexible PWM and complementary drive configurations.

Shutdown functionality is implemented via three coordinated paths: differential analog stop inputs (100–160 mV threshold), digital shutdown pin (0.4–2.2 V logic threshold), and latch disable pin (0.8–2.2 V threshold) that determines whether analog shutdown events are latched. Thermal shutdown activates at 155°C, and cross-conduction current spike duration is limited to ≤25 ns during output transitions.

Key Specifications

Pinout & Package

UC3707DWTR is housed in a 16-pin SOIC (DW) package with standard 1.27 mm pitch, RoHS-compliant NiPdAu lead finish, and moisture sensitivity level (MSL) 2 (260°C peak reflow, 1 year floor life). The package supports surface-mount assembly and thermal dissipation up to 1 W at TA = 25°C.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-channel high-current gate driver applications.

Compared with UCC27211DR and IR2110PbF, UC3707DWTR uniquely combines dual independent low-side drive, differential analog shutdown with latch control, and 5–40 V dual-rail flexibility - making it optimal for fault-aware, medium-power, low-side-switching applications where design simplicity and analog fault integration are prioritized over ultra-high current or high-side capability.

Availability

UC3707DWTR is available at Aetrix Electronics and suitable for DC-DC converters, motor control modules, and industrial power supplies requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.

Supply support for UC3707DWTR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and power management technologies, with decades of expertise in high-reliability power interface ICs.

The UC3707 family was developed for robust, high-speed interfacing between microcontrollers and power MOSFETs in commercial-grade power conversion systems, emphasizing fault resilience, dual-channel independence, and wide supply adaptability.

FAQ

What is the maximum continuous output current per channel for UC3707DWTR?

The UC3707DWTR supports ±500 mA steady-state output current per channel under continuous operation, with ±1.5 A peak transient capability. This rating assumes thermal limits are respected - derating is required above 25°C ambient, and PCB copper area must meet TI's recommended layout for SOIC-DW packages to sustain full current.

Does UC3707DWTR support both inverting and non-inverting logic inputs on each channel?

Yes, UC3707DWTR provides dedicated INV and N.I. (non-inverting) inputs for each of its two channels (pins 4–5 for Channel 1, pins 6–7 for Channel 2). This allows flexible logic configuration - e.g., driving complementary outputs without external inverters, or implementing OR/AND logic functions using external pull-up/down resistors.

Can UC3707DWTR be used with a single 12 V supply for both VIN and VC?

Yes, UC3707DWTR permits VIN and VC to be tied together at a common 12 V rail, as both are rated 5–40 V. However, separating them (e.g., VIN = 5 V for logic, VC = 12 V for gate drive) improves noise immunity and allows independent optimization of logic margin and gate voltage swing - a recommended practice in noisy power environments.

What is the function of Pin 3 (Latch Disable) on UC3707DWTR?

Pin 3 (Latch Disable) controls whether analog shutdown events trigger latched or momentary output disable. When Pin 3 is low, analog shutdown causes outputs to remain low until VIN is cycled or Latch Disable is raised. When high, outputs resume normal operation immediately after the analog fault condition clears - enabling auto-recovery in non-critical fault scenarios.

Is UC3707DWTR pin-compatible with other members of the UC3707 family, such as UC3707N or UC3707J?

No, UC3707DWTR is not pin-compatible with UC3707N (PDIP-16) or UC3707J (CDIP-16) despite sharing identical electrical functionality and pin numbering. The SOIC-DW package has different mechanical dimensions, thermal pad requirements, and solder profile - PCB layout and assembly processes must be validated separately for each package variant.