My Inquiry
My Account
Analog Devices Inc. LTC2916HDDB-1#TRPBF
- Part No.:
- LTC2916HDDB-1#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Supervisors
- Package:
- 8-WFDFN Exposed Pad
- Datasheet:
-
LTC2916HDDB-1#TRPBF.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL 8DFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,426
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LTC2916HDDB-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 0.5V 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 reliable reset assertion for automotive control systems and industrial power monitoring.
For engineers reviewing the LTC2916HDDB-1#TRPBF datasheet, LTC2916HDDB-1#TRPBF pinout, LTC2916HDDB-1#TRPBF application, or LTC2916HDDB-1#TRPBF equivalent, this page provides verified pin functions, temperature-rated performance data, reset timing behavior, manual reset interface details, and validated alternative parts for high-reliability embedded supervision.
Technical Context
The LTC2916HDDB-1#TRPBF implements a precision comparator-based supervision architecture with three-state SEL1/SEL2 inputs selecting one of nine internal reference voltages, and a fixed –5% tolerance band. Its VM input monitors external supplies, while MR enables push-button-initiated reset independent of VM state.
It integrates a 6.2V shunt regulator on VCC for direct operation from up to 12V supplies (with series resistor), supports open-drain RST output with guaranteed low drive down to VCC = 0.8V, and features glitch filtering with 10–150μs minimum detectable undervoltage duration (tUV) and programmable timeout via RT pin.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Range | 1.5V to 5.5V; supports higher voltages up to 12V via internal 6.2V shunt regulator with external current-limiting resistor. |
| Threshold Accuracy | ±1.5% over full –40°C to 125°C range; ensures reliable trip point stability in under-hood automotive environments. |
| Quiescent Current | 30μA typical; enables long-term battery-backed monitoring without significant drain. |
| Reset Timeout | 200ms internal default (RT tied to VCC); adjustable from ~400μs (RT floating) to >10s via external capacitor (9ms/nF scaling). |
| VM Input Range | Monitors 12V, 5V, 3.3V, 2.5V, 1.8V, 1.5V, 1.2V, 1.0V, or ADJ (0.5V nominal); ADJ mode allows custom thresholds using external resistive divider. |
| Manual Reset | MR pin with 100kΩ internal pull-up to VCC; accepts momentary push-button without external components; initiates full reset timeout when asserted low. |
| Operating Temp | –40°C to +125°C (H-grade); qualified for under-hood automotive, industrial motor control, and harsh-environment embedded systems. |
Pinout & Package
Package: 8-Lead (3mm × 2mm) Plastic DFN with exposed pad (Pin 9), RoHS-compliant, lead-free finish. Thermal resistance θJA = 76°C/W. Exposed pad may be left unconnected or soldered to PCB ground for improved thermal performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VM (Pin 4) | Voltage Monitor Input | High-impedance input (≥0.5MΩ) connected to internal comparator; threshold selected by SEL1/SEL2; ADJ mode requires external divider to set 0.5V reference point. |
| SEL1 (Pin 3) | Threshold Selection Input | Three-state logic input (VCC/GND/Open) that, with SEL2, selects one of nine nominal monitor voltages per Table 1; leakage ≤±5μA in open state. |
| MR (Pin 2) | Manual Reset Input | Active-low input with internal 100kΩ pull-up to VCC; asserts RST low for full timeout upon falling edge; compatible with bare push-button switches. |
| GND (Pin 1) | Ground Reference | Primary return path for all internal circuits; must be low-impedance connection; exposed pad (Pin 9) may be tied here for thermal relief. |
| RST (Pin 8) | Open-Drain Reset Output | Asserts low when VM < threshold or MR active; requires external pull-up (e.g., 10kΩ to 3.3V); drives low down to 0.05V at 15μA (VCC = 0.8V). |
| RT (Pin 7) | Reset Timeout Control | Configures timer: floating ≈400μs, tied to VCC ≈200ms, capacitor-to-GND sets tRST = 9ms/nF; internal current sources enable precise external timing. |
| SEL2 (Pin 6) | Threshold Selection Input | Three-state logic input paired with SEL1 to define nominal voltage; same electrical specs as SEL1; jointly determines VM trip point. |
| VCC (Pin 5) | Power Supply Input | Supplies internal circuitry; bypass with 0.1μF ceramic capacitor; operates as shunt regulator above 5.7V; max input current limited to 5mA. |
Key Features
| Feature | Design Value |
|---|---|
| Fixed –5% Tolerance Supervision | Eliminates need for external tolerance configuration logic; simplifies BOM and layout vs. LTC2915 which requires TOL pin routing. |
| Integrated Manual Reset (MR) | Enables field-serviceable system recovery without firmware intervention; no external pull-up or debounce components required. |
| High-Temperature Operation (–40°C to 125°C) | Validated for automotive engine control units (ECUs), transmission modules, and industrial inverters where ambient exceeds 85°C. |
| Glitch-Immune Detection | Combines 10–150μs minimum glitch rejection (tUV) and programmable timeout to prevent false resets during load transients or EMI events. |
| Adjustable Threshold (ADJ Mode) | Supports custom trip points (e.g., 2.7V, 4.1V) via external resistor divider on VM; maintains ±1.5% accuracy across temperature with proper component selection. |
Applications
| Automotive Engine Control Unit (ECU) | Industrial Motor Drive Power Monitoring |
|---|---|
Use Scenario: Continuous monitoring of 5V microcontroller supply and 12V sensor bus in under-hood ECU with ambient temperatures up to 125°C. IC Role / Device Role / Timing Role: Voltage supervisor asserting RST during brownout or overvoltage; MR pin used for diagnostic reset via service port. Use Value: Prevents corrupted MCU operation during cold cranking (battery dip to 6V) or load dump (spike to 40V), leveraging shunt regulator and guaranteed 0.8V RST assertion. |
Use Scenario: Supervising dual rails (3.3V FPGA I/O and 2.5V core) in variable-frequency drive control board operating in factory-floor environments. IC Role / Device Role / Timing Role: Independent threshold selection (SEL1/SEL2) enables single IC to monitor both rails; RT capacitor sets 100ms timeout for safe power sequencing. Use Value: Reduces component count vs. discrete supervisors; ±1.5% accuracy ensures reliable detection of 3.3V –5% (3.135V) and 2.5V –5% (2.375V) faults without margining overhead. |
| Optical Network Line Card | Medical Imaging Power Sequencing |
Use Scenario: Monitoring 1.8V SerDes supply and 12V laser bias supply in telecom line card with strict reset coordination requirements. IC Role / Device Role / Timing Role: Dual-supply supervision using two LTC2916HDDB-1#TRPBF devices; MR pins synchronized to system maintenance command. Use Value: Open-drain RST outputs allow wired-OR reset aggregation; 200ms internal timeout ensures stable initialization before optical link training begins. |
Use Scenario: Ensuring clean power-up of 1.0V ASIC and 1.5V analog front-end in portable ultrasound device with battery backup. IC Role / Device Role / Timing Role: ADJ mode configured for precise 1.0V and 1.5V thresholds; manual reset used for emergency abort during imaging sequence. Use Value: Low 30μA quiescent current extends battery life during standby; ±1.5% accuracy prevents premature shutdown during transient load steps common in pulsed Doppler operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage supervisor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LTC2915HDDB-1#TRPBF | Same package and temperature grade, but includes three-state TOL pin for –5%/–10%/–15% tolerance selection instead of fixed –5%. | Required where design needs dynamic tolerance adjustment (e.g., margin testing, multi-vendor supply compatibility). | Select LTC2915HDDB-1#TRPBF only if tolerance flexibility is needed; otherwise LTC2916HDDB-1#TRPBF reduces pin count and routing complexity. |
| TPS3808G33DBVR | TI part with 3.3V fixed threshold, 200ms timeout, –40°C to 125°C rating, but no manual reset or selectable thresholds. | Suitable only for single-rail 3.3V monitoring; lacks VM/SEL/MR flexibility and ADJ capability of LTC2916HDDB-1#TRPBF. | Choose TPS3808G33DBVR for cost-sensitive, single-threshold designs; LTC2916HDDB-1#TRPBF preferred for multi-rail, field-serviceable, or custom-threshold systems. |
Compared with LTC2915HDDB-1#TRPBF, the LTC2916HDDB-1#TRPBF removes TOL pin complexity for fixed-tolerance use cases, while versus TPS3808G33DBVR it offers broader voltage coverage, manual reset, and configurability-making it optimal for high-reliability, multi-supply embedded supervision where design flexibility and serviceability matter.
Availability
LTC2916HDDB-1#TRPBF is available at Aetrix Electronics and suitable for automotive engine control, industrial motor drives, optical networking equipment, and medical imaging systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LTC2916HDDB-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 high-temperature, low-power, and multi-threshold power monitoring in mission-critical embedded systems where reliability and configurability are paramount.
FAQ
What is the maximum supply voltage the LTC2916HDDB-1#TRPBF can tolerate on its VCC pin?
The LTC2916HDDB-1#TRPBF has an absolute maximum VCC rating of 5.7V for direct connection. However, it integrates a 6.2V shunt regulator, enabling operation from higher supplies (e.g., 12V automotive battery) when a series current-limiting resistor is used to restrict VCC pin current to ≤5mA. Without that resistor, exceeding 5.7V risks violating terminal current limits. The LTC2916HDDB-1#TRPBF datasheet specifies RCC sizing equations based on supply min/max values.
Does the LTC2916HDDB-1#TRPBF support adjustable reset timeout, and how is it configured?
Yes, the LTC2916HDDB-1#TRPBF supports fully adjustable reset timeout via its RT pin. Connecting an external capacitor (CRT) from RT to GND sets tRST ≈ 9ms/nF (e.g., 2.2nF yields ~20ms). Leaving RT floating gives ~400μs; tying RT to VCC selects the internal 200ms timeout. This flexibility allows precise coordination with processor boot sequences or power rail stabilization times in the target system using the LTC2916HDDB-1#TRPBF.
How does the manual reset (MR) function interact with the voltage-monitoring reset in the LTC2916HDDB-1#TRPBF?
In the LTC2916HDDB-1#TRPBF, the MR pin is independent of VM monitoring: asserting MR low forces RST low for the full programmed timeout period regardless of VM voltage level. If MR is triggered while VM is already below threshold, the timeout restarts. The MR pin has a 100kΩ internal pull-up, allowing direct push-button connection-no external components needed. This ensures deterministic field reset capability even during valid supply conditions, a key feature distinguishing the LTC2916HDDB-1#TRPBF from non-MR variants like LTC2915.
Can the LTC2916HDDB-1#TRPBF monitor a 1.0V supply, and what accuracy is guaranteed?
Yes, the LTC2916HDDB-1#TRPBF supports 1.0V nominal monitoring with fixed –5% tolerance, yielding a guaranteed trip point of 0.950V ±1.5% (0.935V to 0.965V) over –40°C to 125°C. This is confirmed in the Electrical Characteristics table (VMT10 row) and applies identically across all nine selectable thresholds. The ±1.5% accuracy is specified over full temperature range-not just at 25°C-ensuring robust low-voltage supervision in modern sub-1V digital systems using the LTC2916HDDB-1#TRPBF.
What package and thermal characteristics apply to the LTC2916HDDB-1#TRPBF?
The LTC2916HDDB-1#TRPBF uses the 8-lead (3mm × 2mm) plastic DFN package (DDB) with exposed pad (Pin 9). Its thermal resistance is θJA = 76°C/W (vs. 250°C/W for TSOT-23), enabling higher power dissipation in compact layouts. The exposed pad may be left unconnected or soldered to PCB ground for improved thermal performance and EMI reduction. This DFN variant is optimized for space-constrained, high-temperature applications where the LTC2916HDDB-1#TRPBF's H-grade rating is fully utilized.
LTC2916HDDB-1#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 8-WFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Multi-Voltage Supervisor
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 27 Selectable Threshold Combinations
- Output:
- Open Drain or Open Collector
- Reset:
- Active Low
- Reset Timeout:
- 150ms Minimum
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-DFN (3x2)
LTC2916HDDB-1#TRPBF FAQ
1.How can I place an order for LTC2916HDDB-1#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2916HDDB-1#TRPBF on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for LTC2916HDDB-1#TRPBF reliable?
The price and inventory of LTC2916HDDB-1#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC2916HDDB-1#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC2916HDDB-1#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2916HDDB-1#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2916HDDB-1#TRPBF?
LTC2916HDDB-1#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2916HDDB-1#TRPBF order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for LTC2916HDDB-1#TRPBF?
For technical support, including LTC2916HDDB-1#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2916HDDB-1#TRPBF requirements.
6.How does Aetrix verify that LTC2916HDDB-1#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC2916HDDB-1#TRPBF products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that LTC2916HDDB-1#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC2916HDDB-1#TRPBF?
All LTC2916HDDB-1#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2916HDDB-1#TRPBF, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The LTC2916HDDB-1#TRPBF part is unused and in its original packaging.
Return procedure for LTC2916HDDB-1#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LTC2916HDDB-1#TRPBF Tags
-
MIC826SYMT-TR
Microchip Technology
-
APX803S-31SA-7
Diodes Incorporated
-
APX803L20-29SA-7
Diodes Incorporated
-
TPS3828-33DBVR
Texas Instruments
-
V6340RSP3B+
EM Microelectronic
-
EM6325CXSP5B-2.9+
EM Microelectronic
-
MCP120T-300I/TT
Microchip Technology
-
MCP130T-315I/TT
Microchip Technology
-
MCP120T-475I/TT
Microchip Technology
-
MCP111T-300E/TT
Microchip Technology
-
MCP120T-315I/TT
Microchip Technology
-
MCP809T-315I/TT
Microchip Technology
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
