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Analog Devices Inc. LTC2916ITS8-1#TRMPBF
- Part No.:
- LTC2916ITS8-1#TRMPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Supervisors
- Package:
- SOT-23-8 Thin, TSOT-23-8
- Datasheet:
-
LTC2916ITS8-1#TRMPBF.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL TSOT23-8
- Quantity:
- Payment:
- Shipping:
Inventory:4,198
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Product details
Overview
LTC2916ITS8-1#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 30μA typical quiescent current, guarantees ±1.5% threshold accuracy over –40°C to 85°C, and delivers glitch-immune open-drain RST output for microprocessor reset in automotive control systems.
For engineers reviewing the LTC2916ITS8-1#TRMPBF datasheet, LTC2916ITS8-1#TRMPBF pinout, LTC2916ITS8-1#TRMPBF application, or LTC2916ITS8-1#TRMPBF equivalent, key selection criteria include its fixed –5% tolerance, TSOT-23-8 package compatibility, MR pin interface simplicity, guaranteed RST assertion down to VCC ≥ 0.8V, and support for adjustable reset timeout via external capacitor on RT pin.
Technical Context
The LTC2916ITS8-1#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 is hardwired-no TOL pin-distinguishing it from the LTC2915 family.
It integrates a 200ms internal reset timer (selectable via RT pin tied to VCC), supports external capacitor-adjusted timeout (9ms/nF), features an internal 6.2V shunt regulator enabling high-voltage operation (>5.7V) with series resistor, and includes anti-glitch circuitry ensuring tUV ≤ 150μs immunity against transient-induced false resets.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Range | 1.5V to 5.5V - powers internal circuitry; enables direct connection to low-voltage rails without LDO. |
| Threshold Accuracy | ±1.5% over –40°C to 85°C - ensures reliable trip point across industrial temperature range without calibration. |
| Quiescent Current | 30μA typical - minimizes standby power draw in battery-backed or energy-sensitive systems. |
| Reset Timeout | 200ms internal (RT = VCC) or adjustable (9ms/nF) - provides flexible power-up sequencing timing control. |
| VCC Undervoltage Lockout | 1.5V max - guarantees RST remains asserted until supply stabilizes above minimum functional voltage. |
| RST Output Type | Open-drain - allows wired-OR configuration with multiple supervisors and logic-level flexibility. |
| Manual Reset Input | MR pin with 100kΩ internal pull-up - enables push-button reset without external components. |
Pinout & Package
Package: 8-Lead TSOT-23 (ThinSOT™), 3mm × 1.75mm footprint, 1mm profile, lead-free, tape-and-reel (TRMPBF).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VM (Pin 1) | Monitor Input | High-impedance input connected to internal comparator; threshold set by SEL1/SEL2 configuration. |
| SEL1 (Pin 2) | Threshold Select | Three-state input (VCC/GND/Open) selecting nominal voltage per Table 1; determines divider ratio. |
| MR (Pin 3) | Manual Reset | Active-low input with internal 100kΩ pull-up; asserts RST low for full timeout when pulsed. |
| GND (Pin 4) | Ground Reference | Primary return path for all internal circuits and VM reference; must be low-impedance. |
| RST (Pin 5) | Reset Output | Open-drain output requiring external pull-up; drives µP reset line low during fault or MR event. |
| RT (Pin 6) | Timeout Control | Capacitor connection point for adjustable reset delay; floating = ~400μs, VCC = ~200ms. |
| SEL2 (Pin 7) | Threshold Select | Three-state input (VCC/GND/Open); works with SEL1 to decode 9 nominal thresholds. |
| VCC (Pin 8) | Power Supply | Input powering all internal blocks; includes 6.2V shunt regulator for >5.7V operation. |
Key Features
| Feature | Design Value |
|---|---|
| Fixed –5% tolerance supervision | Eliminates need for external tolerance configuration logic or third select pin (TOL), simplifying PCB layout and firmware. |
| Integrated manual reset (MR) pin | Enables hardware-initiated system recovery using momentary push button-no external pull-up or debounce required. |
| Glitch-immune comparator | Guarantees tUV ≤ 150μs minimum pulse width at VM to trigger RST, rejecting noise transients near threshold. |
| Shunt-regulated VCC pin | Supports direct connection to 12V automotive or industrial supplies via series resistor-no external LDO needed. |
| Guaranteed RST at VCC ≥ 0.8V | Ensures early reset assertion during power-up, even before main supply reaches regulation, improving boot reliability. |
Applications
| Automotive Engine Control Unit (ECU) | Industrial PLC I/O Module |
|---|---|
Use Scenario: Monitors 5V sensor supply rail in under-hood ECU exposed to thermal cycling and load transients. IC Role / Device Role / Timing Role: Voltage supervisor asserting RST during brownout or cold-crank condition; MR used for service-mode reset. Use Value: ±1.5% threshold accuracy prevents nuisance resets across –40°C to 125°C ambient; 200ms timeout ensures stable MCU initialization after voltage recovery. |
Use Scenario: Supervises 3.3V FPGA configuration voltage in modular PLC backplane with hot-swap capability. IC Role / Device Role / Timing Role: Primary reset generator for FPGA and ARM Cortex-M7 core; RT pin configured for 200ms timeout to meet JTAG initialization window. Use Value: Open-drain RST allows shared reset bus across multiple modules; MR pin enables field technician-triggered reconfiguration without power cycle. |
| Medical Infusion Pump Controller | Telecom Base Station Power Management |
Use Scenario: Validates 1.8V microcontroller supply in battery-operated infusion pump with strict safety-critical reset requirements. IC Role / Device Role / Timing Role: Fault-detection block that forces safe shutdown if VM drops below 1.71V (–5% of 1.8V); MR used for emergency stop reset. Use Value: 30μA quiescent current extends battery life; guaranteed RST assertion at VCC ≥ 0.8V ensures fail-safe behavior even during deep discharge. |
Use Scenario: Monitors 12V intermediate bus feeding DC-DC converters in 5G radio unit with high EMI environment. IC Role / Device Role / Timing Role: High-voltage supervisor using VCC shunt regulator; VM connected via resistive divider to scale 12V to 1.2V threshold range. Use Value: Internal 6.2V shunt eliminates need for external Zener; glitch immunity rejects RF-coupled noise on 12V rail without false triggering. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage supervisor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LTC2915ITS8-1#TRMPBF | Includes TOL pin for –5%/–10%/–15% tolerance selection; no MR pin. | Suitable where tolerance margining is required but manual reset is unnecessary. | Select LTC2915ITS8-1#TRMPBF only if programmable tolerance is needed and MR functionality is omitted. |
| TPS3808G18DBVR | Fixed 1.8V threshold, no selectable voltages; 360ms fixed timeout; no shunt regulator. | Applicable only for dedicated 1.8V monitoring with no voltage scaling or high-voltage operation. | Choose TPS3808G18DBVR only for cost-sensitive, single-threshold designs where 12V operation and MR are not required. |
Compared with LTC2915ITS8-1#TRMPBF and TPS3808G18DBVR, the LTC2916ITS8-1#TRMPBF uniquely combines fixed –5% tolerance, 9-voltage selectability, MR pin, and shunt-regulated VCC-enabling compact, flexible, high-voltage-capable supervision without trade-offs in configurability or robustness.
Availability
LTC2916ITS8-1#TRMPBF is available at Aetrix Electronics and suitable for automotive engine control units, industrial PLC I/O modules, medical infusion pump controllers, and telecom base station power management requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LTC2916ITS8-1#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, 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 mission-critical power monitoring in automotive, industrial, and medical systems demanding guaranteed accuracy, glitch immunity, and extended temperature operation.
FAQ
What is the operating temperature range for the LTC2916ITS8-1#TRMPBF?
The LTC2916ITS8-1#TRMPBF is rated for –40°C to 85°C (I-grade). This is confirmed in the Absolute Maximum Ratings table and Electrical Characteristics section of the datasheet, where parameters marked with "l" apply across this full range. The part uses the TSOT-23-8 package and is specified for industrial environments requiring reliable operation beyond commercial grade.
Does the LTC2916ITS8-1#TRMPBF support adjustable reset timeout, and how is it configured?
Yes, the LTC2916ITS8-1#TRMPBF supports adjustable reset timeout via the 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 is documented in the Pin Functions and Applications Information sections.
How does the MR pin on the LTC2916ITS8-1#TRMPBF function, and what external components are needed?
The MR pin on the LTC2916ITS8-1#TRMPBF is an active-low manual reset input with a built-in 100kΩ pull-up to VCC. It requires no external components-direct connection to a momentary push button between MR and GND suffices. When pulled low, it initiates a full reset timeout period regardless of VM state. This behavior is explicitly defined in the Pin Functions and Applications Information sections.
Can the LTC2916ITS8-1#TRMPBF monitor a 12V supply, and if so, how is it powered?
Yes, the LTC2916ITS8-1#TRMPBF can monitor a 12V supply using its internal 6.2V shunt regulator on the VCC pin. A series current-limiting resistor (RCC) must be placed between the 12V source and VCC to limit input current to ≤5mA. For example, with VS(MIN)=10V and VS(MAX)=12V, RCC ≈ 11kΩ satisfies the design equation. This method is detailed in the Shunt Regulator section of Applications Information.
What is the guaranteed minimum VCC voltage at which the LTC2916ITS8-1#TRMPBF asserts RST?
The LTC2916ITS8-1#TRMPBF guarantees RST assertion for VCC ≥ 0.8V, as specified in the Electrical Characteristics table under "VCC(MIN) Supply Voltage for Guaranteed RST Low". This ensures reliable reset generation during early power-up, even before the main supply reaches regulation, and is validated across the full operating temperature range.
LTC2916ITS8-1#TRMPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- SOT-23-8 Thin, TSOT-23-8
- 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:
- TSOT-23-8
LTC2916ITS8-1#TRMPBF FAQ
1.How can I place an order for LTC2916ITS8-1#TRMPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2916ITS8-1#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 LTC2916ITS8-1#TRMPBF reliable?
The price and inventory of LTC2916ITS8-1#TRMPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC2916ITS8-1#TRMPBF is usually 5 days.
3.What payment methods are accepted for LTC2916ITS8-1#TRMPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2916ITS8-1#TRMPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2916ITS8-1#TRMPBF?
LTC2916ITS8-1#TRMPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2916ITS8-1#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 LTC2916ITS8-1#TRMPBF?
For technical support, including LTC2916ITS8-1#TRMPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2916ITS8-1#TRMPBF requirements.
6.How does Aetrix verify that LTC2916ITS8-1#TRMPBF is sourced from the original manufacturer or authorized distributors?
All LTC2916ITS8-1#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 LTC2916ITS8-1#TRMPBF meets industry standards.
7.What is the process for return or replacement of LTC2916ITS8-1#TRMPBF?
All LTC2916ITS8-1#TRMPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2916ITS8-1#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 LTC2916ITS8-1#TRMPBF part is unused and in its original packaging.
Return procedure for LTC2916ITS8-1#TRMPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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