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Analog Devices Inc. LTC2960CTS8-1
- Part No.:
- LTC2960CTS8-1
- Manufacturer:
- Analog Devices Inc.
- Category:
- Supervisors
- Package:
- SOT-23-8 Thin, TSOT-23-8
- Datasheet:
-
LTC2960CTS8-1.pdf
- Description:
- IC SUPERVISOR 2 CHANNEL TSOT23-8
- Quantity:
- Payment:
- Shipping:
Inventory:4,744
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Product details
Overview
LTC2960CTS8-1 from Analog Devices (formerly Linear Technology) is a nano-current, high-voltage two-input voltage supervisor IC designed for multicell battery monitoring and power-rail supervision in space-constrained systems. It features 850nA quiescent current, 2.5V–36V supply range, ±1.5% threshold accuracy over –40°C to 125°C, adjustable ADJ/IN+ reset thresholds via external resistive dividers, and 36V open-drain RST/OUT outputs - enabling direct interface with high-side logic or battery-fed rails in portable and automotive applications.
For engineers reviewing the LTC2960CTS8-1 datasheet, LTC2960CTS8-1 pinout, LTC2960CTS8-1 application, or LTC2960CTS8-1 equivalent, key selection considerations include its TSOT-23-8 package, 15ms/200ms selectable reset timeout via RT pin, manual reset (MR) input, dual-comparator architecture (ADJ + IN+), and compatibility with >36V transient-tolerant designs using external Zener clamping.
Technical Context
The LTC2960CTS8-1 implements two independent comparators: one monitors the ADJ input for reset generation (with 2.5% hysteresis and programmable timeout), while the second monitors IN+ for configurable status signaling (e.g., low-battery warning or UVLO). Its internal 400mV reference enables precise threshold setting across wide input voltages via resistor dividers.
It operates with ultra-low ICC (850nA typ at 36V) and supports both open-drain outputs rated to 40V absolute max, making it suitable for direct connection to battery stacks or unregulated supplies without level-shifting. The RT pin selects between 15ms and 200ms reset timeout periods, and MR provides asynchronous reset assertion with guaranteed 1µs minimum pulse width detection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.5V to 36V - powers directly from multicell Li-ion or 24V industrial rails without regulation. |
| Quiescent Current | 850nA typical at 36V - enables multi-year battery life in always-on monitoring applications. |
| Reset Threshold Accuracy | ±1.5% over –40°C to 125°C - ensures reliable brown-out detection across automotive temperature extremes. |
| Input Threshold Reference | 400mV ±6mV - stable internal reference used with external dividers to set custom falling/rising thresholds. |
| Reset Timeout Options | 15ms or 200ms - selected by RT pin logic level; prevents false resets during supply transients or startup sequencing. |
| Output Type | 36V open-drain RST and OUT - allows pull-up to any voltage ≤40V, including higher than VCC, for flexible logic interfacing. |
| Manual Reset Input | MR detects logic-low pulses ≥20µs - supports push-button reset or microcontroller-driven system recovery. |
Pinout & Package
Package: 8-lead TSOT-23 (ThinSOT™), 2.9mm × 1.6mm × 0.85mm, RoHS-compliant, lead-free finish (LTFZY marking).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC | Main power supply input | Accepts 2.5V–36V; undervoltage lockout activates below 1.85V; bypass with 0.1µF capacitor required. |
| RT/DVCC | Reset timeout select input | Logic-low = 15ms timeout; logic-high = 200ms timeout; not DVCC on this variant (LTC2960-1). |
| RST | Reset output | Open-drain, 40V max rating; pulls low when ADJ falls below threshold; released after timeout + hysteresis recovery. |
| OUT | Secondary status output | Open-drain, 40V max; pulls low when IN+ falls below threshold; used for NMI, shutdown prep, or UVLO signaling. |
| IN+ | Non-inverting comparator input | Configures second monitor threshold (e.g., low-battery warning); referenced to 400mV internal reference. |
| ADJ | Reset threshold adjustment input | Primary reset sense node; tied to resistor divider from monitored rail; 400mV threshold with 2.5% hysteresis. |
| MR | Manual reset input | Active-low; internally pulled up with 1µA current source; asserts RST immediately upon logic-low detection. |
| GND | Ground reference | System ground return for all analog and digital functions; exposed pad not present in TSOT-23 package. |
Key Features
| Feature | Design Value |
|---|---|
| Nano-power operation | 850nA typical ICC enables >10-year battery life in coin-cell-powered security sensors. |
| Dual independent comparators | ADJ for primary reset + IN+ for secondary event (e.g., low-battery interrupt), reducing BOM count vs discrete solutions. |
| Selectable reset timeout | 15ms or 200ms via RT pin eliminates need for external RC timing networks and improves design flexibility. |
| High-voltage open-drain outputs | RST/OUT rated to 40V abs max - interfaces directly with 24V/36V rails or optocoupler inputs without level shifters. |
| Wide temperature range support | Specified from 0°C to 70°C (C-grade) - validated for commercial portable equipment and industrial control panels. |
Applications
| Portable Medical Monitors | Battery-Powered Security Sensors |
|---|---|
Use Scenario: Continuous ECG or glucose meter operation powered by single Li-ion cell with undervoltage protection and low-battery alert. IC Role / Device Role / Timing Role: LTC2960CTS8-1 supervises main 3.7V rail and battery voltage simultaneously - ADJ triggers MCU reset at 3.0V, IN+ asserts NMI at 3.2V for data save. Use Value: Prevents data corruption during brown-out and enables graceful shutdown before deep discharge, extending usable battery capacity by ~8%. | Use Scenario: Wireless door/window sensor with 10-year battery life requirement and tamper-detection logic. IC Role / Device Role / Timing Role: LTC2960CTS8-1 monitors battery voltage (via ADJ) and system regulator output (via IN+) - RST holds MCU in reset until stable power, OUT signals low battery to RF transceiver. Use Value: Eliminates need for separate voltage detector and reset IC, reducing PCB area by 30% and component count by 2. |
| Automotive Body Control Modules | Industrial IoT Edge Nodes |
Use Scenario: 12V battery-supplied BCM requiring cold-crank immunity and load-dump tolerant supervision. IC Role / Device Role / Timing Role: LTC2960CTS8-1 supervises 5V LDO output (ADJ) and 12V battery rail (IN+) - RST disables non-critical loads during cranking, OUT triggers diagnostic logging. Use Value: Withstands 40V transients when paired with external Zener clamp (BZX84C30), meeting ISO 7637-2 Pulse 1/2/5a requirements. | Use Scenario: Remote environmental sensor node powered by solar-charged LiFePO₄ battery with 24V backup input. IC Role / Device Role / Timing Role: LTC2960CTS8-1 monitors solar charger output (ADJ) and backup rail (IN+) - RST prevents MCU boot until stable, OUT enables backup switchover at 22V. Use Value: Dual-threshold capability replaces two discrete supervisors, cutting BOM cost by $0.32/unit at 10k volume. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage supervisor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6326US29D3+T | Fixed 2.93V reset threshold; no secondary comparator; SOT23-3 package; 1.2µA ICC | Single-rail monitoring only; no IN+ status output; unsuitable for dual-threshold or low-battery warning use cases | Select only if fixed threshold and minimal footprint are prioritized over configurability and dual-monitoring capability |
| TPS3808G12DBVR | Adjustable threshold via external resistor; single comparator; 1.8µA ICC; 3.3V–6V VCC range only | Cannot supervise >6V rails directly; requires level-shifting for battery stack monitoring; no manual reset input | Choose only for low-voltage embedded systems where VCC < 6V and dual monitoring is unnecessary |
Compared with MAX6326US29D3+T and TPS3808G12DBVR, the LTC2960CTS8-1 uniquely supports high-voltage (≤36V) dual-threshold supervision with nano-power consumption and manual reset - making it the only option capable of replacing two discrete supervisors in battery-powered industrial and automotive applications.
Availability
LTC2960CTS8-1 is available at Aetrix Electronics and suitable for portable medical monitors, battery-powered security sensors, automotive body control modules, and industrial IoT edge nodes requiring stable component supply with long-term lifecycle assurance.
Supply support for LTC2960CTS8-1 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. (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, formed through the acquisition of Linear Technology in 2017.
The LTC2960 series was developed by Linear Technology specifically for ultra-low-power, high-voltage system supervision - targeting battery longevity, reliability under harsh electrical conditions, and minimal board space in portable, automotive, and industrial equipment.
FAQ
What is the maximum input voltage the LTC2960CTS8-1 can tolerate on its VCC pin?
The LTC2960CTS8-1 has an absolute maximum VCC rating of 40V. Operation above 36V is not recommended for continuous use, but brief transients up to 40V are permissible per Absolute Maximum Ratings. For sustained >36V exposure (e.g., automotive load dump), external clamping with a 30V Zener diode and current-limiting resistor is required to protect the VCC pin.
Does the LTC2960CTS8-1 support both rising- and falling-edge reset detection?
No - the LTC2960CTS8-1 is configured as an under-voltage reset device: RST asserts low when the ADJ input falls below its 400mV threshold and releases high only after ADJ rises above threshold + 2.5% hysteresis and the reset timeout period expires. It does not provide overvoltage reset functionality.
Can the LTC2960CTS8-1 be used to monitor a 48V battery stack?
Yes - the LTC2960CTS8-1 can monitor 48V battery stacks when used with an external voltage divider and transient protection. Since ADJ/IN+/IN– inputs are limited to 3.5V absolute max, a resistor divider must scale the 48V rail to ≤3.5V. For example, a 13.7:1 ratio (e.g., 1.37MΩ + 100kΩ) yields 3.5V at 48V. A 30V Zener clamp on VCC is also recommended for load-dump immunity.
What is the function of the RT pin on the LTC2960CTS8-1?
The RT pin on the LTC2960CTS8-1 selects the reset timeout period: logic-low (≤0.4V) configures 15ms, and logic-high (≥1.4V) configures 200ms. This pin replaces DVCC on LTC2960-3/4 variants and is unused on LTC2960CTS8-3/4. No external pull-up/down is required - the internal logic senses RT state directly.
Is the LTC2960CTS8-1 pin-compatible with other variants in the LTC2960 family?
Yes - all LTC2960 variants (including LTC2960CTS8-1, -2, -3, -4) share identical TSOT-23-8 pinouts and footprints. However, functional differences exist: LTC2960CTS8-1 uses RT for timeout selection and IN+ for secondary monitoring, while LTC2960CTS8-2 uses IN–, and LTC2960CTS8-3/4 replace RT with DVCC and use active-pull-up outputs. Swapping variants requires schematic updates.
LTC2960CTS8-1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- SOT-23-8 Thin, TSOT-23-8
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Type:
- Multi-Voltage Supervisor
- Number of Voltages Monitored:
- 2
- Voltage - Threshold:
- Adjustable/Selectable
- Output:
- Open Drain or Open Collector
- Reset:
- Active Low
- Reset Timeout:
- Adjustable/Selectable
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TSOT-23-8
LTC2960CTS8-1 FAQ
1.How can I place an order for LTC2960CTS8-1 through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2960CTS8-1 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 LTC2960CTS8-1 reliable?
The price and inventory of LTC2960CTS8-1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC2960CTS8-1 is usually 5 days.
3.What payment methods are accepted for LTC2960CTS8-1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2960CTS8-1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2960CTS8-1?
LTC2960CTS8-1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2960CTS8-1 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 LTC2960CTS8-1?
For technical support, including LTC2960CTS8-1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2960CTS8-1 requirements.
6.How does Aetrix verify that LTC2960CTS8-1 is sourced from the original manufacturer or authorized distributors?
All LTC2960CTS8-1 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 LTC2960CTS8-1 meets industry standards.
7.What is the process for return or replacement of LTC2960CTS8-1?
All LTC2960CTS8-1 units undergo pre-shipment inspection (PSI). If there is an issue with LTC2960CTS8-1, 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 LTC2960CTS8-1 part is unused and in its original packaging.
Return procedure for LTC2960CTS8-1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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