Texas Instruments TLV4041R2YKAR

Overview

TLV4041R2YKAR from Texas Instruments is a precision, low-power comparator with non-inverting input configuration, 0.2 V internal reference, push-pull output, and 2 µA quiescent current. It operates from 1.6 V to 5.5 V across –40°C to +125°C and delivers 360 ns propagation delay-ideal for lithium-ion battery voltage monitoring in portable electronics.

For engineers reviewing the TLV4041R2YKAR datasheet, TLV4041R2YKAR pinout, TLV4041R2YKAR application, or TLV4041R2YKAR equivalent, key selection considerations include its factory-trimmed 0.2 V threshold (±0.5% at 25°C, ±1% over temperature), rail-to-rail input stage, known power-on reset behavior, and dual-package availability in ultra-small DSBGA (0.73 mm × 0.73 mm) or SOT-23.

Technical Context

The TLV4041R2YKAR integrates a precision 0.2 V reference with matched hysteresis (20 mV typ.) and a rail-to-rail input stage, enabling accurate detection of slow-moving or noisy signals without external components. Its non-inverting topology asserts high when input exceeds VIT+ (0.197–0.203 V at 25°C) and low when below VIT− (0.177–0.183 V).

Power-on reset forces output low during supply ramp-up until VS ≥ 1.45 V, ensuring deterministic startup. The push-pull output drives high to within 100 mV of V+ (at 200 µA) and low to within 100 mV of V−, eliminating need for external pull-ups in digital interface applications.

Key Specifications

Pinout & Package

TLV4041R2YKAR is available in two packages: YKA (4-bump DSBGA, 0.73 mm × 0.73 mm) and DBV (SOT-23, 5-pin, 2.9 mm × 1.6 mm). Pin functions are identical across both packages except for NC pin in SOT-23.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLV4041R2DBVR and TLV4051R2YKAR, the TLV4041R2YKAR uniquely combines ultra-miniature DSBGA packaging with non-inverting logic and guaranteed 2 µA quiescent current-making it optimal for space-constrained, battery-sensitive designs where signal polarity must match system-level fault interpretation.

Availability

TLV4041R2YKAR is available at Aetrix Electronics and suitable for lithium-ion battery protection, point-of-load voltage monitoring, and self-diagnostics requiring stable component supply across automotive, industrial, and portable medical device programs.

Supply support for TLV4041R2YKAR 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 core expertise in precision analog, low-power design, and high-reliability manufacturing.

The TLV40x1 product line targets ultra-low-power, space-constrained voltage monitoring applications-including battery management, power sequencing, and fault detection-where factory-trimmed references and deterministic startup replace discrete resistor-divider + comparator solutions.

FAQ

What is the exact reference voltage and accuracy of TLV4041R2YKAR?

The TLV4041R2YKAR features a factory-trimmed 0.2 V internal reference with ±0.5% accuracy at 25°C and ±1% accuracy over the full –40°C to +125°C operating range. This is confirmed in Table 6-5 of the official datasheet (SNVSB04C), where VIT+ is specified as 0.197–0.203 V at 25°C and 0.196–0.204 V over temperature. The TLV4041R2YKAR uses this reference in a non-inverting configuration to assert high when input exceeds the rising threshold.

Does TLV4041R2YKAR require external components to operate?

No, the TLV4041R2YKAR requires no external components for basic operation: its 0.2 V reference, hysteresis, and push-pull output are fully integrated. Only V+, V−, IN, and OUT connections are needed. Unlike open-drain variants, TLV4041R2YKAR does not require a pull-up resistor. External resistor dividers are optional-used only when monitoring voltages higher than 0.2 V (e.g., 2.5 V battery cell via 12.5:1 divider).

How does the power-on reset (POR) function in TLV4041R2YKAR?

The TLV4041R2YKAR POR circuit holds the output low whenever supply voltage (VS) is below 1.45 V. Once VS rises to ≥1.45 V, the comparator exits POR and begins normal operation-reflecting the IN signal state. This behavior is documented in Section 8.4.1 and Figure 8-3 of the datasheet. The TLV4041R2YKAR POR ensures deterministic startup, preventing false triggering during power ramp-up in battery-powered systems.

What is the maximum propagation delay of TLV4041R2YKAR, and under what conditions?

The TLV4041R2YKAR has a typical propagation delay of 360 ns (both tPLH and tPHL), measured at TA = 25°C, VS = 3.3 V, CL = 15 pF, and input overdrive of 100 mV. The datasheet specifies no maximum value, but Figure 7-28 shows worst-case tPLH remains ≤450 ns across –40°C to +125°C and full supply range. This delay applies to the TLV4041R2YKAR variant with 0.2 V reference and push-pull output.

Can TLV4041R2YKAR be used in place of TLV4021R2YKAR?

No-TLV4041R2YKAR and TLV4021R2YKAR are not interchangeable due to fundamental functional differences: TLV4041R2YKAR has push-pull output and non-inverting logic, while TLV4021R2YKAR has open-drain output and identical non-inverting logic. Substituting TLV4041R2YKAR for TLV4021R2YKAR would eliminate the need for an external pull-up but invert default idle-state behavior (high-impedance vs. actively driven low), potentially causing system-level logic conflicts unless firmware or downstream circuitry is modified.