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Analog Devices Inc. LTC2960CTS8-2
- Part No.:
- LTC2960CTS8-2
- Manufacturer:
- Analog Devices Inc.
- Category:
- Supervisors
- Package:
- SOT-23-8 Thin, TSOT-23-8
- Datasheet:
-
LTC2960CTS8-2.pdf
- Description:
- IC SUPERVISOR 2 CHANNEL TSOT23-8
- Quantity:
- Payment:
- Shipping:
Inventory:4,975
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Product details
Overview
LTC2960CTS8-2 from Analog Devices (formerly Linear Technology) is a nano-current, high-voltage two-input voltage monitor in an 8-lead TSOT-23 package, designed for battery-powered systems requiring ultra-low quiescent current (850nA), adjustable reset thresholds via external resistive dividers, and dual-comparator supervision with IN– input configuration. It operates from 2.5V to 36V supply and delivers 1.5% threshold accuracy over –40°C to 125°C.
For engineers reviewing the LTC2960CTS8-2 datasheet, LTC2960CTS8-2 pinout, LTC2960CTS8-2 application, or LTC2960CTS8-2 equivalent, key selection considerations include its 36V open-drain RST/OUT outputs, 15ms/200ms selectable reset timeout via RT pin, manual reset (MR) support, and compatibility with multicell Li-ion battery monitoring and automotive UVLO circuits.
Technical Context
The LTC2960CTS8-2 implements two independent comparators: one monitors the ADJ input for reset generation (with 400mV internal reference and 2.5% hysteresis), while the second uses the IN– input for overvoltage detection - pulling OUT low when the monitored voltage rises above threshold. Its RT pin selects between 15ms and 200ms reset timeout periods, enabling flexible system initialization timing.
It features 36V-tolerant open-drain outputs (RST and OUT), allowing pull-up to voltages beyond VCC (up to 40V), and supports manual reset assertion via MR with 0.4V logic threshold and 20µs minimum pulse width. Input leakage is ±0.1nA at –40°C to 85°C, ensuring minimal error in high-impedance divider networks.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Operating Range | 2.5V to 36V - enables direct connection to 12V/24V automotive or multicell battery rails without regulation. |
| Quiescent Current (ICC) | 850nA typical at 36V - preserves battery life in always-on portable and security systems. |
| Reset Threshold Accuracy | ±1.5% over –40°C to 125°C - ensures reliable brown-out detection across industrial temperature range. |
| IN– Comparator Function | Detects rising voltage exceeding threshold - used for overvoltage warning or battery full-charge indication. |
| Reset Timeout Options | 15ms or 200ms (RT pin-selectable) - balances fast recovery vs noise immunity in power-up sequencing. |
| Output Type | 36V open-drain RST and OUT - allows level-shifting and interfacing with higher-voltage logic or MOSFET gate drivers. |
| Manual Reset Threshold | 0.4V (VMR) - compatible with push-button switches and low-voltage logic signals without external conditioning. |
Pinout & Package
Package: 8-lead Plastic TSOT-23 (0.65mm pitch), 2.9mm × 1.6mm footprint, rated for 0°C to 70°C ambient operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC | Primary power supply input | Accepts 2.5V–36V; powers internal circuitry and enables UVLO protection below 1.85V. |
| RT/DVCC | Reset timeout select input | Tie to GND for 15ms timeout, to VCC for 200ms timeout; not used as DVCC (LTC2960-3/4 variant). |
| RST | Reset output | Open-drain, 36V-tolerant; pulls low when ADJ falls below threshold; released after timeout + hysteresis recovery. |
| OUT | Spare comparator output | Open-drain, 36V-tolerant; pulls low when IN– rises above configured threshold (overvoltage detection). |
| IN– | Inverting threshold input | Configures rising-edge detection point via external resistor divider; referenced to 400mV internal reference. |
| ADJ | Reset threshold adjustment input | Configures falling-edge reset point (e.g., brown-out) via external resistor divider; referenced to 400mV. |
| MR | Manual reset input | Active-low; asserts RST low when pulled ≤0.4V; supports push-button or microcontroller-driven reset initiation. |
| GND | Device ground reference | Common return path for VCC, inputs, and outputs; must be low-impedance for stable comparator operation. |
Key Features
| Feature | Design Value |
|---|---|
| Nano-power operation | 850nA ICC enables >10-year battery life in coin-cell–powered security sensors and remote monitors. |
| Dual-threshold supervision | Simultaneous ADJ (brown-out) and IN– (overvoltage) monitoring eliminates need for separate supervisor ICs. |
| 36V open-drain outputs | Supports direct interface to 24V PLC I/O, automotive CAN transceivers, or high-side MOSFET gate drivers. |
| Adjustable reset timeout | 15ms/200ms selection via RT pin allows optimization for fast-boot MCU systems or noisy industrial supplies. |
| Manual reset with glitch immunity | 20µs MR pulse rejection prevents spurious resets from ESD or switch bounce in ruggedized equipment. |
Applications
| Battery-Powered Security Sensor | Automotive Body Control Module |
|---|---|
Use Scenario: A wireless door/window sensor powered by CR2032 battery must detect low battery (<2.7V) and transmit alert before shutdown. IC Role / Device Role / Timing Role: LTC2960CTS8-2 monitors battery voltage via ADJ input and triggers RST to wake microcontroller; IN– detects overvoltage during charging. Use Value: 850nA quiescent current extends battery life to >5 years; 1.5% threshold accuracy ensures consistent low-battery flag across temperature. |
Use Scenario: 12V vehicle electrical system requires UVLO for infotainment MCU and OVLO for alternator overvoltage protection. IC Role / Device Role / Timing Role: LTC2960CTS8-2 provides dual supervision: ADJ input monitors 12V rail for brown-out (RST), IN– input detects >15V alternator spikes (OUT). Use Value: 36V-tolerant inputs and outputs eliminate external clamping; RT pin enables 200ms timeout for stable cold-cranking recovery. |
| Portable Medical Monitor | Industrial Data Logger |
Use Scenario: Handheld ECG device uses Li-ion battery and must initiate graceful shutdown when voltage drops below 3.0V. IC Role / Device Role / Timing Role: LTC2960CTS8-2 drives RST to assert MCU reset and OUT to trigger NMI interrupt for data save sequence. Use Value: Dual outputs enable coordinated power management: RST halts execution, OUT initiates non-maskable firmware save routine. |
Use Scenario: Remote environmental logger powered by solar-charged LiFePO₄ battery needs reliable reset during dawn/dusk voltage transitions. IC Role / Device Role / Timing Role: LTC2960CTS8-2 supervises 3.3V LDO output (ADJ) and battery voltage (IN–) to prevent false resets during partial shading. Use Value: 2.5% hysteresis on ADJ and 5% on IN– suppresses chattering during slow-varying solar input; TSOT-23 fits space-constrained PCB. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage monitor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6326US29D3+T | Fixed 2.93V reset threshold; no IN– comparator; 3-pin SOT23 package; 1.6µA ICC. | Single-threshold only; lacks dual-monitoring capability and adjustable timeout. | Select when only basic brown-out reset is needed and board space is extremely constrained. |
| TPS3808G12DBVR | Fixed 1.2V threshold; push-pull output; 1.1µA ICC; includes watchdog timer. | No overvoltage detection; no manual reset; requires external components for voltage scaling. | Choose if system requires integrated watchdog and lower-cost fixed-threshold supervision with standard logic-level outputs. |
Compared with MAX6326US29D3+T and TPS3808G12DBVR, the LTC2960CTS8-2 uniquely supports dual adjustable thresholds (ADJ + IN–), 36V open-drain outputs, and RT-selectable timeout - making it optimal for battery health monitoring and automotive UVLO/OVLO where flexibility and high-voltage tolerance are critical.
Availability
LTC2960CTS8-2 is available at Aetrix Electronics and suitable for battery-powered equipment, automotive systems, and portable medical devices requiring stable component supply with guaranteed long-term availability and traceable sourcing.
Supply support for LTC2960CTS8-2 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 its precision analog and power management portfolio with rigorous qualification and long-term product support.
The LTC2960 series was designed specifically for ultra-low-power, high-voltage supervision in battery-critical applications - emphasizing nano-current operation, wide input range, and dual-threshold flexibility for multicell and automotive use cases.
FAQ
What is the function of the RT pin on the LTC2960CTS8-2?
The RT pin on the LTC2960CTS8-2 selects the reset timeout period: tying RT to GND configures a 15ms delay, while connecting RT to VCC sets a 200ms delay. This pin replaces DVCC found on LTC2960-3/4 variants and is essential for tuning system startup timing to match processor requirements or supply stability characteristics in the LTC2960CTS8-2.
How does the IN– input differ from IN+ in the LTC2960CTS8-2?
The LTC2960CTS8-2 uses the IN– input for rising-edge voltage detection - OUT pulls low when the monitored voltage exceeds the threshold set by the external resistor divider. This contrasts with IN+ (used in LTC2960-1/3), which triggers on falling voltage. The IN– configuration makes LTC2960CTS8-2 ideal for overvoltage monitoring, such as alternator spike detection or battery full-charge signaling.
Can the LTC2960CTS8-2 operate with a 3.3V supply rail?
Yes, the LTC2960CTS8-2 operates down to 2.5V VCC, so it functions reliably with a 3.3V supply. Its 850nA quiescent current and 1.5% threshold accuracy remain valid across the full 2.5V–36V range, enabling direct integration into 3.3V microcontroller subsystems without additional regulation - especially useful in low-power IoT edge nodes.
What is the maximum voltage the RST and OUT pins can tolerate?
The RST and OUT pins on the LTC2960CTS8-2 are rated for up to 40V absolute maximum and operate as 36V-tolerant open-drain outputs. This allows pull-up to voltages higher than VCC (e.g., 24V or 36V rails), supporting direct interface with industrial PLC inputs, automotive CAN transceivers, or high-side NMOS gate drivers without level-shifting circuitry.
Does the LTC2960CTS8-2 require external capacitors for stable operation?
Yes, the LTC2960CTS8-2 requires a 0.1µF ceramic capacitor between VCC and GND, placed as close as possible to the device. This decoupling capacitor stabilizes the internal reference and comparator circuitry, especially under fast load transients. No additional capacitors are needed on ADJ, IN–, or MR inputs due to their high-impedance design and built-in filtering.
LTC2960CTS8-2 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
LTC2960CTS8-2 FAQ
1.How can I place an order for LTC2960CTS8-2 through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2960CTS8-2 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 LTC2960CTS8-2 reliable?
The price and inventory of LTC2960CTS8-2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC2960CTS8-2 is usually 5 days.
3.What payment methods are accepted for LTC2960CTS8-2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2960CTS8-2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2960CTS8-2?
LTC2960CTS8-2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2960CTS8-2 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 LTC2960CTS8-2?
For technical support, including LTC2960CTS8-2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2960CTS8-2 requirements.
6.How does Aetrix verify that LTC2960CTS8-2 is sourced from the original manufacturer or authorized distributors?
All LTC2960CTS8-2 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 LTC2960CTS8-2 meets industry standards.
7.What is the process for return or replacement of LTC2960CTS8-2?
All LTC2960CTS8-2 units undergo pre-shipment inspection (PSI). If there is an issue with LTC2960CTS8-2, 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 LTC2960CTS8-2 part is unused and in its original packaging.
Return procedure for LTC2960CTS8-2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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