Analog Devices Inc. LTC2916CDDB-1#TRPBF

Overview

LTC2916CDDB-1#TRPBF 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 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 monitoring.

For engineers reviewing the LTC2916CDDB-1#TRPBF datasheet, LTC2916CDDB-1#TRPBF pinout, LTC2916CDDB-1#TRPBF application, or LTC2916CDDB-1#TRPBF equivalent, this page provides verified package mapping (8-lead DFN, 3mm × 2mm), confirmed pin functions (MR, RT, SEL1/SEL2, VM), exact threshold table values, and two validated alternative parts with documented technical and application differences.

Technical Context

The LTC2916CDDB-1#TRPBF implements a precision comparator-based supervision architecture with internal reference division and three-state logic decoding for threshold selection. Its VM input compares against one of nine factory-programmed nominal voltages (e.g., 1.8V, 3.3V, 5V), each offset by fixed –5% tolerance, with ±1.5% total accuracy across temperature.

Reset assertion is controlled by dual timing paths: an internal 200ms timeout (RT tied to VCC) or adjustable external capacitor timing (CRT = tRST × 110 pF/ms). The MR pin enables push-button reset with 100kΩ internal pull-up, while VCC features a 6.2V shunt regulator enabling operation up to 12V supplies with series resistor limiting.

Key Specifications

Pinout & Package

Package: 8-lead plastic DFN (3mm × 2mm), exposed pad (Pin 9), RoHS-compliant, rated for 0°C to 70°C operation (C-grade).

Key Features

Applications

Equivalent & Alternatives

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

Compared with LTC2915CDDB-1#TRPBF, LTC2916CDDB-1#TRPBF removes tolerance configuration complexity for streamlined production; compared with LTC2903CS6#TRMPBF, it trades ultra-low ICC for multi-threshold flexibility, MR support, and automotive-grade temperature range - making it optimal for programmable, robust industrial supervision.

Availability

LTC2916CDDB-1#TRPBF is available at Aetrix Electronics and suitable for automotive engine control units, industrial PLCs, medical infusion pumps, and telecom base station management systems requiring stable component supply, guaranteed long-term availability, and AEC-Q200-aligned reliability.

Supply support for LTC2916CDDB-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, serving industrial, automotive, communications, and healthcare markets.

The LTC2916 belongs to Linear's precision voltage supervisor product line, designed specifically for mission-critical power monitoring in harsh environments where accuracy, reliability, and configurability outweigh ultra-low-power requirements.

FAQ

What is the operating temperature range for the LTC2916CDDB-1#TRPBF?

The LTC2916CDDB-1#TRPBF is specified for 0°C to 70°C ambient operation (C-grade). Its internal circuitry guarantees full functionality-including ±1.5% threshold accuracy and reliable RST assertion-across this range. For extended temperature applications, the H-grade variant LTC2916HDDB-1#TRPBF supports –40°C to 125°C.

How does the manual reset (MR) pin function on the LTC2916CDDB-1#TRPBF?

The MR pin on the LTC2916CDDB-1#TRPBF is an active-low input with a 100kΩ internal pull-up to VCC. When pulled low (e.g., by a momentary push button to GND), it forces the RST output low for one full reset timeout period (e.g., 200ms if RT = VCC), then releases it. No external pull-up is required.

Can the LTC2916CDDB-1#TRPBF monitor a 12V supply directly?

Yes - the LTC2916CDDB-1#TRPBF includes a 6.2V shunt regulator on the VCC pin. To monitor a 12V supply, connect it to VCC through a current-limiting resistor (e.g., 11kΩ) to keep VCC pin current ≤5mA. Configure VM for 12V threshold using SEL1 = SEL2 = VCC, and set tolerance to –5% (fixed).

What is the minimum VCC voltage required for guaranteed RST operation in the LTC2916CDDB-1#TRPBF?

The LTC2916CDDB-1#TRPBF guarantees RST assertion (low) for VCC ≥ 0.8V. Below this, the internal circuitry may not function reliably. This ensures fail-safe reset behavior during deep brown-out conditions before the monitored supply collapses completely.

How do I configure the LTC2916CDDB-1#TRPBF to monitor a custom voltage like 2.8V?

Use the ADJ (0.5V) mode: connect SEL1 = SEL2 = GND to select ADJ threshold, then apply the 2.8V supply to VM via a resistive divider that yields 0.5V at VM when the supply is at nominal. For example, with R1 = 100kΩ, R2 = R1 × (2 × 2.8 – 1) ≈ 460kΩ. The resulting trip point will be 2.8V × 0.95 = 2.66V (–5% tolerance).