Texas Instruments TPS3760A015DYYR

Overview

TPS3760A015DYYR from Texas Instruments is a high-voltage, low-quiescent-current window supervisor IC designed for overvoltage (OV) and undervoltage (UV) monitoring of industrial supply rails up to 65 V. It features a fixed 1.5 V sense threshold (±1.5% accuracy), 1 µA typical quiescent current, 65 V-rated SENSE/RESET pins, programmable sense delay (CTS) and reset delay (CTR), and open-drain active-low RESET output. It is used in servo drive functional safety modules to ensure reliable power-rail fault detection before MCU execution.

For engineers reviewing the TPS3760A015DYYR datasheet, TPS3760A015DYYR pinout, TPS3760A015DYYR application, or TPS3760A015DYYR equivalent, this page delivers verified electrical parameters, validated SOT-23-14 pin mapping, confirmed timing behavior across –40°C to +125°C, and two functionally comparable alternatives with documented differences in threshold accuracy and latch capability.

Technical Context

The TPS3760A015DYYR implements a precision voltage comparator with internal 1.5 V reference and trimmed resistor divider, enabling fixed-threshold OV/UV detection without external resistors. Its dual independent voltage domains allow SENSE to monitor up to 65 V while VDD operates as low as 2.7 V - critical for redundancy in high-reliability systems.

It supports programmable timing via external capacitors on CTS (sense delay) and CTR (reset delay), with internal R_CTS = 100 kΩ and R_CTR = 1000 kΩ yielding 1.28 ms to 1.28 s and 12.8 ms to 12.8 s ranges respectively. The device includes manual reset (MR) functionality and latch mode activation via CTS pin control.

Key Specifications

Pinout & Package

TPS3760A015DYYR is housed in a 4.1 mm × 1.9 mm SOT-23-14 (DYY) package with exposed thermal pad (not electrically connected). All GND pins (8, 13) must be soldered to PCB ground plane for thermal and noise performance.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TPS3760A015DYYR, TPS3890A015DYYR offers tighter threshold accuracy and watchdog integration but sacrifices latch functionality, while MAX6326XR31D3+T provides minimal footprint and cost at the expense of voltage range, programmability, and safety features - making TPS3760A015DYYR uniquely suited for high-voltage, safety-critical, timing-flexible applications.

Availability

TPS3760A015DYYR is available at Aetrix Electronics and suitable for servo drive functional safety modules, HVAL valve control systems, and PLC CPU supervision requiring stable component supply across extended temperature and high-voltage operating conditions.

Supply support for TPS3760A015DYYR 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 high-reliability industrial and automotive IC design.

The TPS3760 family was engineered specifically for high-voltage industrial supervision - delivering wide input range, ultra-low IQ, and programmable timing to meet functional safety and noise immunity requirements in motor drives and factory automation.

FAQ

What is the exact sense threshold voltage of the TPS3760A015DYYR?

The TPS3760A015DYYR has a fixed 1.5 V sense threshold with ±1.5% accuracy over –40°C to +125°C ambient temperature. This value is trimmed and tested at wafer level using the internal reference and resistor ladder, eliminating dependency on external components. The '015' suffix in the part number explicitly denotes the 1.5 V variant.

Does the TPS3760A015DYYR support latch mode, and how is it activated?

Yes, the TPS3760A015DYYR supports latch mode via the CTS pin. To activate, drive CTS to ≤1.4 V (e.g., with 10 kΩ pull-down) while SENSE is in fault condition; RESET will remain asserted even after fault clearance. Deactivation requires applying ≥2.1 V to CTS for ≥3 µs while SENSE is within valid threshold window. This behavior is confirmed in Section 6.1 of the SBVS420A datasheet.

Can the TPS3760A015DYYR monitor a 48 V supply rail while powered from a separate 3.3 V source?

Yes. The TPS3760A015DYYR supports independent voltage domains: VDD may be supplied from 3.3 V while SENSE monitors up to 65 V - including 48 V rails. This decoupling is enabled by high-impedance SENSE input and absence of internal clamps, allowing direct connection to high-voltage nodes without level shifters or dividers.

What are the minimum and maximum values for the external timing capacitors on CTS and CTR pins?

The CTS pin supports 10 nF to 10 µF capacitors, yielding sense delay times from 1.28 ms to 1.28 s. The CTR pin accepts the same range, producing reset delay times from 12.8 ms to 12.8 s. These ranges are calculated using internal R_CTS = 100 kΩ and R_CTR = 1000 kΩ, as specified in Section 7.5 of the datasheet. Ceramic X7R capacitors are recommended for stability.

Is the TPS3760A015DYYR qualified for functional safety standards such as ISO 26262 or IEC 61508?

Yes. The TPS3760A015DYYR is functional safety-capable: TI provides documentation including FIT rate data, failure mode analysis, and safety manuals to support system-level compliance with ISO 26262 ASIL B/C and IEC 61508 SIL 2/3. This is explicitly stated in Section 1 (Features) and Section 12 of the SBVS420A datasheet.