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Analog Devices Inc. LTC2960CTS8-4
- Part No.:
- LTC2960CTS8-4
- Manufacturer:
- Analog Devices Inc.
- Category:
- Supervisors
- Package:
- SOT-23-8 Thin, TSOT-23-8
- Datasheet:
-
LTC2960CTS8-4.pdf
- Description:
- IC SUPERVISOR 2 CHANNEL TSOT23-8
- Quantity:
- Payment:
- Shipping:
Inventory:4,304
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Product details
Overview
LTC2960CTS8-4 from Analog Devices (formerly Linear Technology) is a nano-power, high-voltage dual-threshold voltage supervisor IC with ADJ/IN– input configuration, 200ms fixed reset timeout, and active pull-up RST/OUT outputs referenced to DVCC. It operates from 2.5V to 36V supply, draws only 850nA typical quiescent current, and delivers ±1.5% threshold accuracy over –40°C to 85°C - ideal for battery-backed systems requiring ultra-low power and precise brown-out detection.
For engineers reviewing the LTC2960CTS8-4 datasheet, LTC2960CTS8-4 pinout, LTC2960CTS8-4 application, or LTC2960CTS8-4 equivalent, key selection considerations include its inverting IN– comparator architecture, DVCC-referenced push-pull outputs, 200ms fixed timeout, and TSOT-23-8 package compatibility with space-constrained portable and automotive monitoring designs.
Technical Context
The LTC2960CTS8-4 implements two independent comparators: one on the ADJ pin (reset threshold, 400mV internal reference) and one on the IN– pin (voltage monitor with 400mV threshold and 20mV hysteresis). Its supervisory logic asserts RST low when ADJ falls below threshold, then holds RST low for 200ms after ADJ rises above threshold +2.5% hysteresis.
Unlike LTC2960-1/2 variants, it replaces the RT pin with DVCC to enable logic-level programmable output swing (1.6V–5.5V), allowing RST/OUT to drive microcontroller I/O directly without external pull-ups. The IN– input enables overvoltage detection when used with a resistive divider tied to a rising-rail voltage.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Operating Range | 2.5V to 36V - supports direct connection to multicell Li-ion, 12V/24V automotive, or industrial rails without external regulators. |
| Quiescent Current (ICC) | 850nA typical at 36V - enables >10-year battery life in coin-cell-powered security sensors or IoT endpoints. |
| Reset Threshold Accuracy | ±1.5% over –40°C to 85°C - ensures reliable system reset across automotive cabin temperature extremes. |
| IN– Comparator Hysteresis | 20mV (5% of 400mV) - prevents chatter during noisy supply transients without requiring external RC filtering. |
| Reset Timeout Period | Fixed 200ms - guarantees sufficient processor initialization time after power recovery; no RT pin required. |
| DVCC Output Drive Range | 1.6V to 5.5V - allows direct interfacing with 1.8V, 3.3V, or 5V logic families without level shifters. |
| Input Leakage Current | ±0.1nA at 420mV (–40°C to 85°C) - permits use of >10MΩ resistor dividers with <0.1% error, reducing power loss. |
Pinout & Package
Package: 8-lead TSOT-23 (ThinSOT™), 3.0mm × 1.7mm footprint, lead-free, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC | Main power supply input | Accepts 2.5V–36V; powers internal circuitry and enables UVLO protection below 1.85V. |
| DVCC | Logic supply reference for RST/OUT | Sets high-level output voltage (1.6V–5.5V); grounding converts outputs to open-drain mode. |
| RST | Reset status output | Active-low, DVCC-referenced push-pull driver; asserts low on ADJ undervoltage, releases after 200ms + hysteresis. |
| OUT | Secondary status output | Active-low, DVCC-referenced push-pull driver; asserts low when IN– exceeds threshold (overvoltage detection). |
| IN– | Inverting voltage monitor input | Configures overvoltage trip point via external resistor divider; 400mV internal reference, 20mV hysteresis. |
| ADJ | Reset threshold adjustment input | Configures primary undervoltage trip point via external resistor divider; 400mV internal reference, 10mV hysteresis. |
| MR | Manual reset input | Active-low; forces RST low when pulled ≤0.4V; releases after 200ms timeout upon return to >1.4V. |
| GND | Device ground reference | Analog and digital ground common node; must be low-impedance for accurate threshold sensing. |
Key Features
| Feature | Design Value |
|---|---|
| Nano-current operation | 850nA ICC enables >10-year operation on CR2032 coin cells in always-on battery monitors. |
| IN– overvoltage detection | Enables single-supply rail monitoring for "high-side" fault conditions (e.g., battery overcharge, regulator runaway). |
| DVCC-configurable outputs | Eliminates external pull-up resistors and associated static power loss; improves rise time vs. open-drain alternatives. |
| 200ms fixed timeout | Removes need for RT pin routing and simplifies PCB layout in cost-sensitive consumer and industrial designs. |
| ±1.5% threshold accuracy | Reduces design margin requirements for critical reset points in automotive and medical battery systems. |
| –40°C to 85°C operating range | Validated for under-hood automotive, industrial control, and outdoor portable equipment deployments. |
Applications
| Battery-Powered Security Sensor | Automotive Cabin Controller |
|---|---|
|
Use Scenario: A wireless door/window sensor powered by a CR2032 battery must detect low battery (<2.2V) and trigger BLE alert before shutdown. IC Role / Device Role / Timing Role: LTC2960CTS8-4 monitors VBAT via ADJ divider; asserts RST at 2.2V falling threshold and holds for 200ms to ensure MCU completes transmission. Use Value: 850nA quiescent current extends battery life beyond 5 years; ±1.5% accuracy avoids premature alerts or late warnings. |
Use Scenario: An infotainment head unit requires reliable reset during cold cranking (battery dip to 6V) and overvoltage detection during load dump (up to 36V). IC Role / Device Role / Timing Role: LTC2960CTS8-4 uses ADJ for undervoltage reset (6.0V) and IN– for overvoltage warning (16.0V), both referenced to 3.3V DVCC for MCU interface. Use Value: Dual-threshold capability replaces two discrete supervisors; 36V VCC rating withstands load dump without clamping diodes. |
| Portable Medical Monitor | Industrial Data Logger |
|
Use Scenario: A handheld ECG device uses a LiPo battery (3.0–4.2V) and must initiate graceful shutdown when voltage drops below 3.3V. IC Role / Device Role / Timing Role: LTC2960CTS8-4 configures ADJ for 3.3V reset and IN– for 4.15V overvoltage alarm; RST triggers MCU-controlled data save. Use Value: Active pull-up outputs drive 3.3V MCU pins directly; 200ms timeout ensures EEPROM write completion before power loss. |
Use Scenario: A solar-powered environmental logger must supervise both PV input (up to 30V) and 3.3V system rail, detecting brown-out and overvoltage events. IC Role / Device Role / Timing Role: LTC2960CTS8-4 monitors PV via ADJ (24V undervoltage) and 3.3V rail via IN– (3.6V overvoltage); RST halts sampling, OUT flags fault to host. Use Value: Single IC reduces BOM count and board area; 36V VCC tolerance eliminates need for input pre-regulator in PV applications. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage supervisor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6326TUT+T | Single-threshold, 3.08V fixed reset; 1.6µA ICC; SOT23-5 package; no IN– monitor or DVCC output control. | Only provides basic reset - cannot implement dual-threshold (UVLO + OVLO) or logic-level output drive. | Select only if design requires fixed 3.08V reset and ultra-low cost; not suitable for LTC2960CTS8-4's dual-monitoring or DVCC interface needs. |
| TPS3808G33DBVR | Adjustable threshold (0.405V ref), 1.1µA ICC, 200ms timeout, open-drain outputs; SOT23-6 package. | Lacks IN– input - cannot perform overvoltage detection; outputs require external pull-ups, increasing power and slowing rise time. | Choose when only ADJ-based undervoltage supervision is needed and open-drain compatibility is acceptable; inferior for battery runtime and signal integrity. |
Compared with MAX6326TUT+T and TPS3808G33DBVR, the LTC2960CTS8-4 uniquely integrates dual-threshold monitoring (ADJ + IN–), DVCC-referenced push-pull outputs, and sub-1µA quiescent current in an 8-pin TSOT-23 - enabling compact, low-power, and functionally richer supervision in space- and energy-constrained designs.
Availability
LTC2960CTS8-4 is available at Aetrix Electronics and suitable for battery-powered security sensors, automotive cabin controllers, portable medical monitors, and industrial data loggers requiring stable component supply and long-term lifecycle support.
Supply support for LTC2960CTS8-4 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) is a global leader in high-performance analog, mixed-signal, and power management semiconductors.
The LTC2960 family was designed specifically for ultra-low-power, high-voltage system supervision in battery-critical applications - emphasizing nano-current operation, wide input range, and flexible threshold configuration without external components.
FAQ
What is the operating temperature range for the LTC2960CTS8-4?
The LTC2960CTS8-4 is specified for –40°C to 85°C ambient operation, matching the "I" grade temperature range. This is confirmed in the Order Information table where LTC2960ITS8-4#TRPBF denotes the industrial-grade variant, and the Electrical Characteristics notes explicitly state "l" (full-range) specifications apply across this interval.
Does the LTC2960CTS8-4 support overvoltage detection?
Yes, the LTC2960CTS8-4 supports overvoltage detection via its IN– input. When configured with a resistive divider, the IN– comparator asserts OUT low when the monitored voltage rises above the programmed threshold (e.g., 400mV reference), making it suitable for battery overcharge or regulator runaway protection.
How does the DVCC pin affect the RST and OUT outputs of the LTC2960CTS8-4?
The DVCC pin sets the high-level voltage for RST and OUT. When DVCC is tied to 1.6V–5.5V, both outputs drive actively to that voltage. If DVCC is grounded, RST and OUT become open-drain and require external pull-up resistors - providing flexibility for mixed-voltage system interfacing.
What is the reset timeout period for the LTC2960CTS8-4, and is it configurable?
The LTC2960CTS8-4 has a fixed 200ms reset timeout period, as defined in the Option Table and confirmed in Electrical Characteristics (tRST = 140ms to 280ms, typ 200ms). Unlike LTC2960-1/2 variants, it lacks an RT pin and does not support selectable timeout periods.
Can the LTC2960CTS8-4 operate directly from a 36V supply?
Yes, the LTC2960CTS8-4 supports VCC input from 2.5V to 36V, with absolute maximum rating of 40V. Its internal circuitry is rated for full operation up to 36V, enabling direct connection to 24V industrial rails or 36V battery packs without external regulation.
LTC2960CTS8-4 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:
- Push-Pull, Totem Pole
- Reset:
- Active Low
- Reset Timeout:
- 140ms Minimum
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TSOT-23-8
LTC2960CTS8-4 FAQ
1.How can I place an order for LTC2960CTS8-4 through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2960CTS8-4 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 LTC2960CTS8-4 reliable?
The price and inventory of LTC2960CTS8-4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC2960CTS8-4 is usually 5 days.
3.What payment methods are accepted for LTC2960CTS8-4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2960CTS8-4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2960CTS8-4?
LTC2960CTS8-4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2960CTS8-4 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 LTC2960CTS8-4?
For technical support, including LTC2960CTS8-4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2960CTS8-4 requirements.
6.How does Aetrix verify that LTC2960CTS8-4 is sourced from the original manufacturer or authorized distributors?
All LTC2960CTS8-4 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 LTC2960CTS8-4 meets industry standards.
7.What is the process for return or replacement of LTC2960CTS8-4?
All LTC2960CTS8-4 units undergo pre-shipment inspection (PSI). If there is an issue with LTC2960CTS8-4, 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 LTC2960CTS8-4 part is unused and in its original packaging.
Return procedure for LTC2960CTS8-4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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