Texas Instruments TLV1824RTER

Overview

TLV1824RTER from Texas Instruments is a quad-channel, 40V rail-to-rail input comparator with open-drain outputs, 5 μA per channel quiescent current, 420 ns typical propagation delay at 12 V, and Power-On Reset (POR) functionality. It operates across –40°C to +125°C and supports industrial motor drives, factory automation, and automotive infotainment systems where high-voltage tolerance and low-power sensing are critical.

For engineers reviewing the TLV1824RTER datasheet, TLV1824RTER pinout, TLV1824RTER application, or TLV1824RTER equivalent, this page delivers verified electrical specs, package-validated pin functions, thermal performance data, functional safety documentation support, and real-world implementation guidance for high-reliability 40V comparator selection.

Technical Context

The TLV1824RTER implements four independent open-drain comparators with rail-to-rail inputs spanning (V−) − 0.2 V to (V+) + 0.2 V, enabling direct sensing of signals near supply rails. Each channel features an internal Power-On Reset circuit that holds output low until V+ reaches ≥2.4 V and remains active for up to 200 μs during power-up/down transitions.

Its open-drain architecture allows output pull-up to voltages up to 40 V-fully independent of the comparator's own supply voltage-and supports wired-OR logic, level translation, and interfacing with higher-voltage digital systems. Input bias current is 150 fA (typ), offset voltage is ±0.5 mV (typ), and ESD protection meets ±2000 V HBM.

Key Specifications

Pinout & Package

RTE package: 16-pin WQFN (3.00 mm × 3.00 mm) with exposed thermal pad connected directly to V−.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar comparator applications.

Compared with TLV1824IPWR and LM339DR, the TLV1824RTER uniquely combines 40 V operation, 5 μA quiescent current, rail-to-rail inputs, and integrated POR-enabling compact, low-power, high-reliability sensing in thermally constrained automotive and industrial modules.

Availability

TLV1824RTER is available at Aetrix Electronics and suitable for motor drives, factory automation systems, and automotive infotainment modules requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for TLV1824RTER 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 delivering analog and embedded processing solutions, with deep expertise in precision analog, power management, and automotive-grade ICs.

The TLV1824RTER belongs to TI's TLV18xx family of micro-power, high-voltage comparators designed specifically for robust sensing in harsh industrial, automotive, and appliance environments where reliability, low power, and wide supply range are mandatory.

FAQ

What is the maximum allowable output pull-up voltage for TLV1824RTER?

The TLV1824RTER open-drain output supports pull-up voltages up to 40 V-regardless of its own V+ supply voltage-enabling direct interface with higher-voltage logic domains. This capability is explicitly specified in the Absolute Maximum Ratings table (output voltage from V−: –0.3 V to 42 V) and confirmed in Section 7.4.2.2 of the datasheet. Always ensure the external pull-up source can tolerate sink current during output low states.

Does TLV1824RTER include Power-On Reset, and how does it behave?

Yes, TLV1824RTER includes an internal Power-On Reset (POR) circuit that activates when V+ crosses 2.4 V during power-up or drops below that threshold during power-down. During the POR period (≤200 μs), all open-drain outputs are held low, ensuring a known, safe state before valid comparisons begin. This behavior is documented in Sections 3, 7.4.3, and Table 5.8 (PON = 200 μs).

Can unused comparator inputs on TLV1824RTER be left floating?

No-unused inputs must not be left floating. Due to the device's low offset and high bandwidth, floating inputs cause high-frequency chatter from internal noise. Per Section 7.4.1.3, each unused input pair must be biased within the rail-to-rail range (e.g., INx− grounded and INx+ tied to V+ or a stable reference) with ≥50 mV differential to ensure stable output. TI explicitly warns against tying inputs together.

What is the thermal pad connection requirement for TLV1824RTER?

The exposed thermal pad on the TLV1824RTER's RTE package must be soldered directly to the V− net on the PCB. This connection is required for both thermal dissipation (reducing R_θJA to 53.8°C/W) and ESD robustness, as stated in Table 4-3 and Figure 4-3. Failure to connect the pad compromises junction temperature limits and HBM ESD performance.

Is TLV1824RTER qualified for functional safety applications?

Yes, TLV1824RTER is Functional Safety-Capable: TI provides a dedicated safety manual, FIT rate data, and failure mode analysis to support ISO 26262 ASIL-B and IEC 61508 SIL-2 system-level certification. This is explicitly noted in the Features section and Section 9.1 (Documentation Support), confirming its use in safety-critical monitoring paths.