Analog Devices Inc. LTC2916HTS8-1#TRPBF

Overview

LTC2916HTS8-1#TRPBF from Analog Devices (formerly Linear Technology) is a high-temperature voltage supervisor IC with fixed –5% tolerance, nine selectable nominal thresholds (12V to 1.0V + ADJ), and integrated manual reset input. It operates from 1.5V to 5.5V supply, consumes 30μA typical quiescent current, guarantees ±1.5% threshold accuracy over –40°C to 125°C, and delivers glitch-immune open-drain RST output for automotive power-rail monitoring.

For engineers reviewing the LTC2916HTS8-1#TRPBF datasheet, LTC2916HTS8-1#TRPBF pinout, LTC2916HTS8-1#TRPBF application, or LTC2916HTS8-1#TRPBF equivalent, key selection criteria include its TSOT-23-8 package, MR pin support for push-button reset, internal 200ms timeout option, guaranteed RST assertion down to VCC ≥ 0.8V, and operation up to 125°C in harsh environments.

Technical Context

The LTC2916HTS8-1#TRPBF implements a precision comparator-based supervision architecture with three-state SEL1/SEL2 inputs selecting one of nine internal reference voltages, and a dedicated MR pin enabling active-low manual reset initiation. Its internal 6.2V shunt regulator allows direct connection to supplies up to 12V when used with a series current-limiting resistor.

Reset timing is configurable via the RT pin: tied to VCC yields ~200ms internal timeout; external capacitor to GND sets tRST ≈ 9ms/nF; floating RT gives ~400μs. The RST output is open-drain, requiring an external pull-up, and remains asserted low during power-up until VCC exceeds 1.5V and VM rises above the selected threshold plus timeout.

Key Specifications

Pinout & Package

Package: 8-Lead TSOT-23 (ThinSOT™), 1mm profile, RoHS-compliant lead-free finish. Pin 1 marked by bar; exposed pad not present in TSOT-23 variant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with LTC2915HTS8-1#TRPBF and TPS3808G33DBVR, the LTC2916HTS8-1#TRPBF uniquely combines fixed –5% tolerance, nine selectable thresholds, and integrated manual reset in a TSOT-23-8 package - making it optimal for automotive and industrial systems requiring both configurability and field serviceability.

Availability

LTC2916HTS8-1#TRPBF is available at Aetrix Electronics and suitable for automotive engine control units, industrial PLCs, optical transceivers, and medical imaging systems requiring stable component supply across extended temperature ranges.

Supply support for LTC2916HTS8-1#TRPBF 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, Inc. (acquired Linear Technology in 2017) is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors.

The LTC2916 belongs to Linear's precision voltage supervisor product line, designed specifically for automotive, industrial, and telecom applications demanding guaranteed operation at 125°C and high threshold accuracy under thermal stress.

FAQ

What is the maximum supply voltage the LTC2916HTS8-1#TRPBF can tolerate on its VCC pin?

The LTC2916HTS8-1#TRPBF VCC pin has an absolute maximum rating of 5.7V for direct connection. However, it integrates a 6.2V shunt regulator, allowing operation from higher-voltage supplies (e.g., 12V automotive battery) when a series current-limiting resistor is used to keep input current ≤5mA. Without that resistor, exceeding 5.7V risks violating terminal current limits. The LTC2916HTS8-1#TRPBF datasheet specifies RCC sizing based on supply min/max to ensure safe operation.

Does the LTC2916HTS8-1#TRPBF support adjustable reset timeout using an external capacitor?

Yes, the LTC2916HTS8-1#TRPBF supports adjustable reset timeout via the RT pin. Connecting a capacitor (CRT) from RT to GND sets tRST ≈ 9ms/nF - for example, 2.2nF yields ~20ms. The LTC2916HTS8-1#TRPBF also offers fixed options: tying RT to VCC gives ~200ms, and leaving RT floating yields ~400μs. This flexibility allows precise alignment with processor boot timing or system recovery requirements.

How does the manual reset (MR) pin on the LTC2916HTS8-1#TRPBF function during normal operation?

The MR pin on the LTC2916HTS8-1#TRPBF is an active-low input with an internal 100kΩ pull-up to VCC, enabling direct interface to a momentary pushbutton without external components. When MR is pulled low while RST is high, the LTC2916HTS8-1#TRPBF asserts RST low for the configured timeout period (e.g., 200ms). If MR is held low longer than the timeout, RST remains low until MR is released and the full timeout elapses. This behavior is fully documented in the LTC2916HTS8-1#TRPBF Applications Information section.

Can the LTC2916HTS8-1#TRPBF monitor a 1.0V supply, and what is the corresponding threshold voltage?

Yes, the LTC2916HTS8-1#TRPBF supports 1.0V nominal monitoring via SEL1=GND and SEL2=Open. With its fixed –5% tolerance, the trip threshold is 0.95V (1.0V × 0.95). Threshold accuracy is guaranteed at ±1.5% of 1.0V (±15mV), so the actual trip range is 0.935V to 0.965V over –40°C to 125°C. This makes the LTC2916HTS8-1#TRPBF suitable for supervising modern low-voltage SoC and FPGA core rails.

Is the LTC2916HTS8-1#TRPBF pin-compatible with the LTC2915HTS8-1#TRPBF?

No, the LTC2916HTS8-1#TRPBF is not pin-compatible with the LTC2915HTS8-1#TRPBF. While both use the same TSOT-23-8 package, Pin 3 is MR (manual reset) on the LTC2916HTS8-1#TRPBF but TOL (tolerance select) on the LTC2915HTS8-1#TRPBF, and Pin 2/7 assignments differ in functional mapping. Swapping them without PCB modification will result in incorrect threshold or reset behavior. Always verify pin functions against the respective datasheet before substitution.