Texas Instruments UC2708DW

Overview

UC2708DW from Texas Instruments is a dual non-inverting power MOSFET driver IC operating from 5 V to 35 V, delivering up to 3.0 A peak output current per channel with 25 ns rise/fall times and 25 ns propagation delay. It features independent TTL/CMOS-compatible inputs (A/B), enable and shutdown control, thermal shutdown, and operates across –25°C to 85°C for industrial applications such as motor gate driving and DC-DC converter half-bridge control.

For engineers reviewing the UC2708DW datasheet, UC2708DW pinout, UC2708DW application, or UC2708DW equivalent, this page delivers verified package mapping (SOIC-16 DW), confirmed switching performance at 200 kHz, thermal protection behavior, input voltage tolerance up to VIN + 0.3 V, and validated alternative part selection guidance based on functional and temperature-range alignment.

Technical Context

The UC2708DW integrates two independent totem-pole output stages with internal biasing and under-voltage lockout, enabling high-frequency switching of power MOSFETs without external bootstrap components. Its logic inputs tolerate voltages up to VIN, and both outputs are capable of sourcing or sinking 3 A while maintaining low cross-conduction current spikes.

Enable and Shutdown functions operate independently: Enable forces under-voltage lockout (reducing supply current by ~90%), while Shutdown pulls both outputs low without affecting internal logic states. Thermal shutdown activates at 155°C, and ESD protection meets 2 kV HBM.

Key Specifications

Pinout & Package

UC2708DW is housed in a 16-pin SOIC (DW) package with 1.27 mm pitch, 7.5 mm × 10.3 mm body, and 2.65 mm max height - compatible with standard surface-mount assembly processes and IPC-7351 land patterns.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual power driver applications.

Compared with UC3708DW and UCC27201D, UC2708DW uniquely balances industrial temperature rating, dual-channel independence, and self-contained operation - making it optimal for legacy and thermally demanding half-bridge implementations where layout simplicity and reliability outweigh raw speed gains.

Availability

UC2708DW is available at Aetrix Electronics and suitable for motor gate driving, DC-DC converter half-bridge control, and industrial PLC output stage applications requiring stable component supply and long-term industrial temperature qualification.

Supply support for UC2708DW 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 over 50 years of innovation in industrial and automotive electronics.

The UC2708DW belongs to the UC1708/UC2708/UC3708 family of high-speed dual power drivers designed specifically for robust interfacing between logic controllers and power MOSFETs in industrial motor control and power conversion systems.

FAQ

What is the maximum operating junction temperature for UC2708DW?

The UC2708DW has a maximum operating junction temperature of 150°C, with thermal shutdown activating at 155°C to prevent damage. This specification is validated for its –25°C to 85°C ambient industrial temperature rating, and proper PCB copper area and airflow must be maintained to stay within safe thermal limits during 3 A peak output operation.

Does UC2708DW support high-side N-MOSFET driving without external components?

No, UC2708DW does not integrate bootstrap or charge-pump circuitry and cannot directly drive high-side N-MOSFETs in floating configurations. It provides grounded-source drive only - suitable for low-side switches or complementary P/N-MOSFET pairs where both devices share a common source reference. For high-side N-MOSFETs, an external bootstrap capacitor and diode are required.

Can UC2708DW inputs accept 5 V TTL logic when powered from 24 V?

Yes, UC2708DW inputs (A, B, Enable, Shutdown) are specified to tolerate voltages from –0.3 V to (VIN + 0.3 V). When VIN = 24 V, inputs safely accept 5 V TTL signals without clamping or level-shifting - a key advantage over many contemporary drivers that require strict 3.3 V or 5 V logic compatibility.

Is UC2708DW pin-compatible with UC3708DW?

Yes, UC2708DW and UC3708DW share identical SOIC-16 DW packaging, pinout, and electrical interface - including NC pin placement and dual VIN connections. The only functional difference is operating temperature range: UC2708DW is rated for –25°C to 85°C (industrial), while UC3708DW is rated for 0°C to 70°C (commercial).

What is the purpose of the two VIN pins (13 and 16) on UC2708DW?

Pins 13 and 16 are both connected internally to the main power supply rail and serve as redundant VIN inputs to improve high-frequency decoupling and reduce supply impedance. Layout best practice recommends placing a 1 µF ceramic capacitor close to Pin 13 and a second 10 µF bulk capacitor near Pin 16 to stabilize the 5–35 V supply under 3 A transient loads.