Texas Instruments TLV4112IP

Overview

TLV4112IP 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 supports industrial temperature range (−40°C to 125°C) in an 8-pin PDIP package.

For engineers reviewing the TLV4112IP datasheet, TLV4112IP pinout, TLV4112IP application, or TLV4112IP equivalent, key selection criteria include output drive capability (>300 mA), thermal performance in PDIP, rail-to-rail output swing, low quiescent current (700 µA/channel), and compatibility with single-supply systems requiring robust load driving without external boost circuitry.

Technical Context

The TLV4112IP employs a proprietary output stage architecture enabling continuous 300 mA per channel into resistive loads while maintaining rail-to-rail output voltage swing down to within 200 mV of each rail at full load. Its internal compensation ensures stability with capacitive loads up to 1 nF, and phase margin remains ≥66° with 100 Ω load and 10 pF capacitance.

It operates across 2.5 V–6 V supply with input common-mode range extending from ground to VDD − 1.5 V, supporting direct sensing in low-voltage systems. Shutdown functionality is absent in TLV4112IP (unlike TLV4110/TLV4113), confirming its role as a dedicated high-drive dual op-amp without power gating.

Key Specifications

Pinout & Package

TLV4112IP is housed in an 8-pin plastic DIP (PDIP) package with through-hole mounting and standard 0.3-inch width. Thermal performance is characterized at θJA = 104°C/W, supporting up to 240 mW continuous dissipation at TA = 125°C.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLV4112IDR, TLV4112IP offers superior thermal dissipation in through-hole layouts and higher RMS current capability at elevated ambient temperatures; versus OPA2544TP, it provides rail-to-rail operation and 5× lower supply current at the cost of peak drive strength - making TLV4112IP the balanced choice for compact, efficient, single-supply industrial drivers.

Availability

TLV4112IP is available at Aetrix Electronics and suitable for industrial solenoid drivers, DC motor controllers, high-voltage sensor interfaces, and capacitive load amplifiers requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for TLV4112IP 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 and embedded processing technologies, with decades of expertise in precision amplifiers and industrial-grade IC design.

The TLV4112IP belongs to the TLV411x family of high-output-current op-amps engineered specifically for single-supply industrial actuation, replacing discrete buffer stages in PLC outputs, valve drivers, and motor control circuits.

FAQ

What is the maximum continuous output current specification for TLV4112IP at 125°C ambient?

The TLV4112IP supports up to 110 mA continuous output current per channel at TJ = 150°C. With θJA = 104°C/W and TA = 125°C, this corresponds to a maximum continuous power dissipation of 240.4 mW - verified in the Dissipation Rating Table of the official datasheet (SLOS289E). Exceeding this requires thermal derating or forced cooling. TLV4112IP maintains full 300 mA capability only at lower ambient temperatures or with improved board-level heatsinking.

Does TLV4112IP include a shutdown pin, and how does it differ from TLV4110/TLV4113?

No, TLV4112IP does not include a shutdown pin. The TLV4112 device family lacks shutdown functionality entirely - confirmed by the "SHUTDOWN" column in the FAMILY PACKAGE TABLE, which shows "-" for TLV4112. In contrast, TLV4110 and TLV4113 explicitly list "Yes" and provide dedicated SHDN pins. This makes TLV4112IP appropriate for always-on industrial drivers where power gating is unnecessary, unlike portable applications served by TLV4110/TLV4113.

Can TLV4112IP drive a 100 Ω load to rail-to-rail swing at 5 V supply?

Yes, TLV4112IP achieves rail-to-rail output swing into 100 Ω loads at 5 V supply: VOH ≥ 4.6 V (within 400 mV of VDD) and VOL ≤ 0.55 V (within 550 mV of GND) across the full −40°C to 125°C range, per the "Output Characteristics" table in SLOS289E. At 25°C, performance improves further (VOH = 4.76 V, VOL = 0.4 V), confirming reliable operation in precision analog output stages requiring maximal dynamic range.

What is the thermal resistance (θJA) of TLV4112IP in the PDIP package, and how does it compare to SOIC?

TLV4112IP in the 8-pin PDIP (P) package has θJA = 104°C/W, as specified in the Dissipation Rating Table. This is significantly lower than the SOIC (D) version's θJA = 176°C/W, giving TLV4112IP a 41% thermal advantage. At TA = 125°C, TLV4112IP sustains 240.4 mW continuous power versus only 142 mW for the SOIC variant - making the PDIP version preferable for thermally demanding, high-duty-cycle applications.

Is TLV4112IP suitable for driving piezoelectric transducers with >1 nF capacitive load?

TLV4112IP remains stable with capacitive loads up to 1 nF without external compensation, as confirmed by phase margin ≥66° at 100 Ω + 10 pF (Figure 17). For loads >1 nF, TI recommends adding a series R_NULL resistor (≤20 Ω) between output and load, per Application Information section "Driving a Capacitive Load". This proven technique prevents ringing and ensures monotonic step response - validated in Figures 18–22 for both large- and small-signal conditions.