Texas Instruments TLV4112CDGN

Overview

TLV4112CDGN from Texas Instruments is a dual-channel, rail-to-rail output operational amplifier optimized for high-current buffer and coil driver applications, delivering >300 mA per channel at 5 V, with 2.7 MHz unity-gain bandwidth, 1.5 V/µs slew rate, and operation from 2.5 V to 6 V supply. It targets industrial motor control feedback stages and precision current-source drivers where output drive strength and low-voltage operation are critical.

For engineers reviewing the TLV4112CDGN datasheet, TLV4112CDGN pinout, TLV4112CDGN application, or TLV4112CDGN equivalent, key selection considerations include verified 300 mA continuous output capability in MSOP PowerPAD™ package, thermal performance under sustained load, shutdown compatibility (not supported on TLV4112), and rail-to-rail output swing into 100 Ω loads.

Technical Context

The TLV4112CDGN employs a robust output stage architecture enabling ±320 mA peak sourcing/sinking at 5 V while maintaining rail-to-rail output swing down to 0.1 V from rails at 100 mA. Its 2.7 MHz gain-bandwidth product and 1.5 V/µs slew rate support stable unity-gain buffer configurations driving capacitive or resistive loads up to 100 Ω without oscillation when properly compensated.

Designed for single-supply systems, it features a common-mode input range extending from GND to VDD−1.5 V and maintains CMRR ≥63 dB across 0°C–70°C. The device operates without internal shutdown logic-unlike TLV4110/TLV4113-making it suitable for always-on high-current analog signal paths requiring minimal quiescent overhead.

Key Specifications

Pinout & Package

The TLV4112CDGN is housed in an 8-pin MSOP PowerPAD™ package (DGN), featuring an exposed thermal pad on the underside for enhanced heat dissipation. This thermally optimized construction enables >2 W power handling when properly soldered to PCB copper, supporting sustained high-current operation without thermal derating.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-output-current op-amp applications.

Compared with OPA2544T and LM7332MA, the TLV4112CDGN uniquely balances 300 mA drive, 2.7 MHz bandwidth, 700 µA quiescent current, and MSOP PowerPAD™ thermal efficiency-making it the optimal choice for space-constrained, battery-aware, or low-voltage industrial analog output stages.

Availability

TLV4112CDGN is available at Aetrix Electronics and suitable for motor control feedback, industrial current source, coil driver interface, and test equipment signal buffer applications requiring stable component supply, long-term manufacturability, and guaranteed traceable sourcing.

Supply support for TLV4112CDGN 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 connectivity technologies, with over 90 years of innovation in high-reliability analog IC design.

The TLV411x family was engineered specifically for single-supply, high-output-current operational amplifier applications-including solenoid drivers, precision current sources, and rail-to-rail buffer stages-where thermal efficiency and low-voltage operation are essential.

FAQ

What is the maximum continuous output current for TLV4112CDGN at 5 V?

The TLV4112CDGN delivers ±300 mA per channel continuously at 5 V when mounted in its MSOP PowerPAD™ package with proper PCB thermal design (e.g., 5 thermal vias to ground plane). This rating is validated at TA = 70°C and TJ ≤ 105°C. Exceeding this requires derating per the Dissipation Rating Table in the datasheet, where power dissipation drops to 474 mW at 125°C ambient.

Does TLV4112CDGN support shutdown functionality?

No, TLV4112CDGN does not include a shutdown terminal. Shutdown capability is exclusive to TLV4110 and TLV4113 variants in the same family. The TLV4112CDGN is designed for always-on, high-reliability analog output stages-its 700 µA per-channel quiescent current reflects optimization for low-power active operation rather than ultra-low standby states.

Can TLV4112CDGN drive a 100 Ω load with rail-to-rail output swing?

Yes, TLV4112CDGN maintains rail-to-rail output swing within 0.1 V of VDD and GND when sourcing or sinking up to 100 mA at 5 V, and within 0.3 V at 300 mA. At 3 V supply, VOH ≥2.6 V and VOL ≤0.4 V at 100 mA (TA = 25°C), confirming usable swing across its full operating range-critical for 3.3 V ADC interfacing and low-voltage actuator control.

What thermal design guidelines apply to TLV4112CDGN's MSOP PowerPAD™ package?

The TLV4112CDGN's DGN package requires soldering its exposed thermal pad to a dedicated GND-connected copper area with five 13-mil vias. TI recommends connecting all vias fully (not webbed) to an internal ground plane. This achieves θJA = 52.7°C/W, enabling >2.37 W power dissipation at TA ≤25°C-essential to sustain 300 mA output without thermal shutdown or parameter drift.

Is TLV4112CDGN stable driving capacitive loads?

TLV4112CDGN remains stable into ≤10 pF capacitive loads without external compensation. For loads >1 nF (e.g., cables or ADC input capacitance), TI recommends adding a 0–20 Ω series resistor (RNULL) between output and load to preserve phase margin ≥66° and prevent ringing. This is confirmed by Figure 17 (Phase Margin vs Capacitive Load) in the SLOS289E datasheet.