Analog Devices Inc. LTC2916CTS8-1#TRMPBF

Overview

LTC2916CTS8-1#TRMPBF from Analog Devices (formerly Linear Technology) is a precision voltage supervisor IC with fixed –5% tolerance, 9 selectable nominal thresholds (12V to 1.0V + ADJ), and integrated manual reset input. It operates from 1.5V to 5.5V supply, consumes only 30μA quiescent current, guarantees ±1.5% threshold accuracy over –40°C to 125°C, and delivers glitch-immune open-drain RST output for automotive power sequencing.

For engineers reviewing the LTC2916CTS8-1#TRMPBF datasheet, LTC2916CTS8-1#TRMPBF pinout, LTC2916CTS8-1#TRMPBF application, or LTC2916CTS8-1#TRMPBF equivalent, key selection criteria include its fixed –5% tolerance, TSOT-23-8 package, MR pin compatibility with push-button interfaces, guaranteed RST assertion down to VCC ≥ 0.8V, and operation up to 125°C in harsh environments.

Technical Context

The LTC2916CTS8-1#TRMPBF implements a precision comparator-based monitoring architecture with internal reference division and three-state SEL1/SEL2 decoding to select one of nine nominal thresholds. Its fixed –5% tolerance eliminates external configuration complexity compared to the LTC2915's TOL pin.

It integrates a 200ms internal reset timeout when RT is tied to VCC, supports adjustable timing via external capacitor on RT, and features an internal 6.2V shunt regulator enabling direct operation from supplies up to 12V with series current-limiting resistor. The MR input has a 100kΩ internal pull-up and accepts logic-level or push-button signals.

Key Specifications

Pinout & Package

Package: 8-Lead TSOT-23 (ThinSOT™), 3.0mm × 1.75mm × 1.0mm profile, exposed pad optional, RoHS-compliant lead-free finish.

Key Features

Applications

Equivalent & Alternatives

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

Compared with LTC2915CTS8-1#TRMPBF and TPS3808G18DBVR, the LTC2916CTS8-1#TRMPBF uniquely combines fixed –5% tolerance, 9-threshold flexibility, and integrated manual reset in a single TSOT-23 package-enabling robust, compact power supervision for automotive and industrial systems requiring both precision and user-initiated recovery.

Availability

LTC2916CTS8-1#TRMPBF is available at Aetrix Electronics and suitable for automotive engine control, industrial PLC power sequencing, optical transceiver modules, and medical diagnostic imaging systems requiring stable component supply across extended temperature ranges.

Supply support for LTC2916CTS8-1#TRMPBF 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

Analog Devices acquired Linear Technology in 2017 and maintains its high-reliability analog IC portfolio, emphasizing precision, low power, and rugged performance for demanding applications.

The LTC2916CTS8-1#TRMPBF belongs to Linear's voltage supervisor product line, designed specifically for automotive and industrial systems requiring guaranteed operation to 125°C, ±1.5% threshold accuracy, and robust reset generation under transient conditions.

FAQ

What is the maximum supply voltage the LTC2916CTS8-1#TRMPBF can tolerate on its VCC pin?

The LTC2916CTS8-1#TRMPBF has an absolute maximum VCC rating of 5.7V when used as a direct supply input. For higher voltages (e.g., 12V automotive battery), the internal 6.2V shunt regulator must be used with a series current-limiting resistor sized to keep VCC pin current ≤5mA. This enables safe operation from supplies up to 60V with proper resistor selection, as documented in the Applications Information section.

Does the LTC2916CTS8-1#TRMPBF require external resistors to set its voltage threshold?

No, the LTC2916CTS8-1#TRMPBF does not require external resistors to set its voltage threshold. It uses internal precision references and three-state SEL1/SEL2 inputs to select one of nine factory-programmed nominal thresholds (12V, 5V, 3.3V, 2.5V, 1.8V, 1.5V, 1.2V, 1.0V, or ADJ). Only the ADJ mode requires an external resistive divider on the VM pin to define the trip point.

How does the manual reset (MR) function behave on the LTC2916CTS8-1#TRMPBF?

The MR pin on the LTC2916CTS8-1#TRMPBF is an active-low input with a 100kΩ internal pull-up to VCC. When pulled low (e.g., by a push button to GND), it forces the RST output low for one full reset timeout period (e.g., 200ms if RT = VCC), then releases RST high. MR operates independently of VM status and functions even if VCC is above 0.8V, making it reliable for field service and recovery operations.

Can the LTC2916CTS8-1#TRMPBF monitor a 12V supply while powered from that same 12V rail?

Yes, the LTC2916CTS8-1#TRMPBF can monitor a 12V supply while powered from it, using its internal 6.2V shunt regulator. A series resistor (e.g., 11kΩ) between the 12V source and the VCC pin limits current to ≤5mA, allowing the device to regulate its own supply internally. The VM pin is then connected to the same 12V rail (or a scaled version) to perform supervision with –5% tolerance (trip at 11.4V).

What is the minimum VCC voltage required for the LTC2916CTS8-1#TRMPBF to assert a valid RST signal?

The LTC2916CTS8-1#TRMPBF guarantees RST assertion (low) for VCC ≥ 0.8V. Below this level, the device is in undervoltage lockout and RST behavior is undefined. This feature ensures reliable reset generation during brownout conditions common in automotive and industrial power systems, even when main supply sags temporarily.