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Analog Devices Inc. LTC2916IDDB-1#TRMPBF
- Part No.:
- LTC2916IDDB-1#TRMPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Supervisors
- Package:
- 8-WFDFN Exposed Pad
- Datasheet:
-
LTC2916IDDB-1#TRMPBF.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL 8DFN
- Quantity:
- Payment:
- Shipping:
Inventory:457
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Product details
Overview
LTC2916IDDB-1#TRMPBF from Analog Devices (formerly Linear Technology) is a precision voltage supervisor IC with fixed –5% tolerance, 9 selectable nominal thresholds (12V to 0.5V 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-rail monitoring.
For engineers reviewing the LTC2916IDDB-1#TRMPBF datasheet, LTC2916IDDB-1#TRMPBF pinout, LTC2916IDDB-1#TRMPBF application, or LTC2916IDDB-1#TRMPBF equivalent, key selection criteria include its fixed –5% tolerance, MR pin support for push-button reset, DFN-8 (3mm × 2mm) package with exposed pad, guaranteed RST assertion down to VCC = 0.8V, and operation up to 125°C for under-hood automotive use.
Technical Context
The LTC2916IDDB-1#TRMPBF implements a precision comparator-based supervision architecture with internal reference division and three-state SEL1/SEL2 decoding to select one of nine nominal thresholds. Its fixed –5% tolerance eliminates TOL pin configuration complexity versus the LTC2915.
It integrates an internal 200ms reset timeout when RT is tied to VCC, supports adjustable timing via external capacitor on RT, and features a dedicated MR input with 100kΩ internal pull-up-enabling direct push-button interface without external components. The open-drain RST output is driven by VCC-supplied logic and remains functional down to VCC = 0.8V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Range | 1.5V to 5.5V - supports direct connection to low-voltage rails; shunt regulation enables operation up to 6.2V with series resistor |
| Threshold Accuracy | ±1.5% over –40°C to 125°C - ensures reliable trip point across full automotive temperature range without calibration |
| Quiescent Current | 30μA typical - enables always-on monitoring in battery-backed or low-power systems |
| Reset Timeout | 200ms internal (RT = VCC) or adjustable via capacitor - provides configurable power-up stabilization delay |
| RST Output Type | Open-drain - allows wired-OR of multiple supervisors and compatibility with diverse logic supply voltages |
| MR Input Logic | Active-low with 100kΩ internal pull-up - enables direct push-button reset without external resistor |
| VM Input Impedance | 0.5–8MΩ - minimizes loading on monitored rail, especially critical for high-impedance ADJ-mode dividers |
Pinout & Package
Package: 8-Lead (3mm × 2mm) Plastic DFN with exposed pad (Pin 9), rated for –40°C to 125°C operation. 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 comparator input; threshold set by SEL1/SEL2; supports ADJ mode at 0.5V nominal |
| SEL1 (Pin 3) | Threshold Selection Input | Three-state control (VCC/GND/open) selecting one of nine nominal voltages per Table 1 |
| MR (Pin 2) | Manual Reset Input | Active-low input with internal 100kΩ pull-up; initiates reset pulse on falling edge |
| GND (Pin 1) | Ground Reference | Primary return path for all internal circuits and VM comparator reference |
| RST (Pin 8) | Reset Output | Open-drain output asserting low during undervoltage or MR event; requires external pull-up |
| RT (Pin 7) | Reset Timeout Control | Connect to VCC for 200ms timeout; connect capacitor to GND for adjustable timing (9ms/nF) |
| SEL2 (Pin 6) | Threshold Selection Input | Three-state control (VCC/GND/open) completing 9-threshold decode with SEL1 |
| VCC (Pin 5) | Power Supply Input | Supplies internal circuitry; includes 6.2V shunt regulator for >5.7V supplies |
Key Features
| Feature | Design Value |
|---|---|
| Fixed –5% tolerance supervision | Eliminates need for TOL pin routing and simplifies BOM vs LTC2915; reduces design risk in production |
| Integrated manual reset (MR) input | 100kΩ internal pull-up enables direct push-button interface-no external resistor required |
| Glitch-immune comparator | Combines 200ms timeout + anti-glitch circuitry (tUV = 10–150μs) to reject transients near threshold |
| Guaranteed RST operation down to VCC = 0.8V | Ensures valid reset assertion during brown-out conditions before system logic loses functionality |
| 125°C operational rating | Qualified for under-hood automotive applications without derating or thermal margining |
Applications
| Automotive Engine Control Unit (ECU) | Industrial PLC I/O Module |
|---|---|
|
Use Scenario: Monitoring 5V microcontroller supply in engine bay environment subject to wide temperature swings and load dump transients. IC Role / Device Role / Timing Role: Voltage supervisor asserting RST during undervoltage events; MR pin used for service-mode reset via dashboard button. Use Value: ±1.5% threshold accuracy ensures no nuisance resets across –40°C to 125°C; 30μA quiescent current minimizes parasitic drain on vehicle battery. |
Use Scenario: Supervising 3.3V FPGA configuration rail in modular industrial controller with field-service requirements. IC Role / Device Role / Timing Role: Primary supervisor providing 200ms power-up reset; MR input enables technician-initiated reconfiguration without power cycle. Use Value: Open-drain RST allows wired-OR with other supervisors; DFN-8 package fits dense I/O board layouts with minimal footprint. |
| Optical Transceiver Line Card | Medical Infusion Pump Controller |
|
Use Scenario: Validating 12V bias supply for laser diode driver in telecom line card operating at elevated ambient temperatures. IC Role / Device Role / Timing Role: High-voltage supervisor using internal 6.2V shunt regulator; RT pin configured for 200ms timeout to stabilize analog front-end. Use Value: 12V threshold with –5% tolerance (11.4V trip) prevents false resets during normal 12V±5% supply variation; 125°C rating matches card thermal profile. |
Use Scenario: Monitoring 1.8V microcontroller core supply in battery-powered infusion pump requiring fail-safe shutdown on undervoltage. IC Role / Device Role / Timing Role: Low-voltage supervisor with ADJ mode configured for precise 1.8V trip; MR pin supports clinician-initiated device reset. Use Value: Guaranteed RST assertion at VCC = 0.8V ensures reset remains active during deep brown-out; ±1.5% accuracy meets medical safety margin requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage supervisor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LTC2916ITS8-1#TRPBF | Same electrical specs, TSOT-23-8 package (2.9mm × 1.6mm) instead of DFN-8 (3mm × 2mm) | Preferred for space-constrained boards where height < 1mm is critical; lower θJA (250°C/W) than DFN | Select when PCB real estate or profile is more critical than thermal performance |
| LTC2915IDDB-1#TRMPBF | Identical package and pinout, but adds TOL pin for –5%/–10%/–15% tolerance selection | Required when system-level margining or multi-tolerance validation is needed (e.g., ATE test fixtures) | Select only if variable tolerance is explicitly required; otherwise LTC2916IDDB-1#TRMPBF offers simpler layout and BOM |
Compared with LTC2916ITS8-1#TRPBF, the LTC2916IDDB-1#TRMPBF offers superior thermal performance (θJA = 76°C/W vs 250°C/W) due to its DFN package's exposed pad, making it preferable for high-ambient or thermally dense designs; compared with LTC2915IDDB-1#TRMPBF, it removes TOL pin complexity while retaining identical threshold accuracy and MR functionality-reducing routing overhead and validation scope.
Availability
LTC2916IDDB-1#TRMPBF is available at Aetrix Electronics and suitable for automotive ECU, industrial PLC, and optical networking applications requiring stable component supply, extended temperature operation, and long-term lifecycle continuity.
Supply support for LTC2916IDDB-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 full product support, manufacturing, and documentation for the LTC portfolio. Linear pioneered high-precision analog ICs for demanding industrial and automotive environments.
The LTC2916 belongs to Linear's voltage supervisor family designed specifically for robust, low-power, high-accuracy power-rail monitoring in automotive, industrial, and telecom infrastructure-emphasizing guaranteed specifications across extreme temperatures and noise immunity.
FAQ
What is the operating temperature range for the LTC2916IDDB-1#TRMPBF?
The LTC2916IDDB-1#TRMPBF is specified for operation from –40°C to 125°C, qualified for automotive under-hood applications. This rating applies to the DFN-8 package variant and is guaranteed across all electrical parameters including ±1.5% threshold accuracy and 30μA quiescent current. The part uses the "H" grade designation in Linear's ordering nomenclature, confirming its extended temperature qualification.
Does the LTC2916IDDB-1#TRMPBF require external resistors for threshold selection?
No, the LTC2916IDDB-1#TRMPBF does not require external resistors for its nine standard thresholds (12V to 0.5V ADJ). Thresholds are selected solely via three-state SEL1 and SEL2 inputs (VCC/GND/open). Only the ADJ mode requires an external resistive divider on the VM pin to set the 0.5V reference point-no resistors are needed for fixed thresholds like 1.8V, 3.3V, or 5V.
How is the reset timeout configured on the LTC2916IDDB-1#TRMPBF?
The LTC2916IDDB-1#TRMPBF supports two reset timeout configurations: tying the RT pin to VCC yields a fixed 200ms timeout, while connecting an external capacitor from RT to GND sets an adjustable timeout of 9ms per nanofarad (e.g., 2.2nF = ~20ms). Leaving RT floating results in ~400μs timeout. The internal timer is guaranteed from –40°C to 125°C and requires no calibration.
Can the LTC2916IDDB-1#TRMPBF monitor supply voltages above 5.5V?
Yes, the LTC2916IDDB-1#TRMPBF can monitor supplies above 5.5V using its internal 6.2V shunt regulator on the VCC pin. For supplies exceeding 5.7V, a series current-limiting resistor must be placed between the supply and VCC to keep input current ≤5mA. The VM pin itself accepts up to 15V, enabling direct monitoring of 12V rails while powering the IC from a regulated 3.3V or 5V source.
What is the function of the MR pin on the LTC2916IDDB-1#TRMPBF?
The MR (Manual Reset) pin on the LTC2916IDDB-1#TRMPBF is an active-low input with a built-in 100kΩ pull-up resistor to VCC. Asserting MR low initiates a full reset sequence-driving RST low for the configured timeout period regardless of VM status. This enables simple push-button reset interfaces without external components and is exclusive to the LTC2916 (not present on LTC2915).
LTC2916IDDB-1#TRMPBF 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 ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-DFN (3x2)
LTC2916IDDB-1#TRMPBF FAQ
1.How can I place an order for LTC2916IDDB-1#TRMPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2916IDDB-1#TRMPBF 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 LTC2916IDDB-1#TRMPBF reliable?
The price and inventory of LTC2916IDDB-1#TRMPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC2916IDDB-1#TRMPBF is usually 5 days.
3.What payment methods are accepted for LTC2916IDDB-1#TRMPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2916IDDB-1#TRMPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2916IDDB-1#TRMPBF?
LTC2916IDDB-1#TRMPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2916IDDB-1#TRMPBF 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 LTC2916IDDB-1#TRMPBF?
For technical support, including LTC2916IDDB-1#TRMPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2916IDDB-1#TRMPBF requirements.
6.How does Aetrix verify that LTC2916IDDB-1#TRMPBF is sourced from the original manufacturer or authorized distributors?
All LTC2916IDDB-1#TRMPBF 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 LTC2916IDDB-1#TRMPBF meets industry standards.
7.What is the process for return or replacement of LTC2916IDDB-1#TRMPBF?
All LTC2916IDDB-1#TRMPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2916IDDB-1#TRMPBF, 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 LTC2916IDDB-1#TRMPBF part is unused and in its original packaging.
Return procedure for LTC2916IDDB-1#TRMPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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