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Analog Devices Inc. LTC2960CTS8-4#TRPBF
- Part No.:
- LTC2960CTS8-4#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Supervisors
- Package:
- SOT-23-8 Thin, TSOT-23-8
- Datasheet:
-
LTC2960CTS8-4#TRPBF.pdf
- Description:
- IC SUPERVISOR 2 CHANNEL TSOT23-8
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
LTC2960CTS8-4#TRPBF from Analog Devices (formerly Linear Technology) is a nano-current, high-voltage two-input voltage supervisor IC designed for battery and regulator monitoring in space-constrained systems. It features 850nA quiescent current, 36V VCC operating range, ±2mV ADJ/IN– threshold matching, fixed 200ms reset timeout, and active pull-up RST/OUT outputs referenced to DVCC. It is used in automotive battery disconnect circuits to prevent deep discharge.
For engineers reviewing the LTC2960CTS8-4#TRPBF datasheet, LTC2960CTS8-4#TRPBF pinout, LTC2960CTS8-4#TRPBF application, or LTC2960CTS8-4#TRPBF equivalent, key selection criteria include its IN– input configuration, DVCC-referenced active pull-up outputs, –40°C to 85°C temperature grade, TSOT-23-8 package, and compatibility with Li-ion battery voltage supervision requiring precise falling-threshold detection.
Technical Context
The LTC2960CTS8-4#TRPBF implements dual-comparator supervision: one dedicated ADJ input for reset threshold (400mV typ, ±6mV max matching error), and an IN– input for overvoltage detection with 20mV hysteresis. Its internal 400mV reference enables externally adjustable thresholds via resistive dividers on both inputs.
It uses a fixed 200ms reset timeout period (no RT pin), supports DVCC-referenced logic-level outputs (1.6V–5.5V), and guarantees RST low assertion down to VCC = 1.2V. The device operates across 2.5V–36V VCC and includes manual reset (MR) with 20µs minimum pulse width detection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 2.5V to 36V - powers the IC directly from high-voltage battery rails without external regulators. |
| Quiescent Current | 850nA max at 36V/85°C - enables multi-year operation in battery-powered systems. |
| Reset Threshold Accuracy | ±1.5% over –40°C to 125°C - ensures reliable brown-out detection across automotive temperature extremes. |
| IN– Threshold Hysteresis | 20mV typ (5% of 400mV) - prevents chatter during slow-rising supply transients. |
| Reset Timeout | 200ms fixed - provides sufficient time for system stabilization after power recovery. |
| DVCC Output Logic Range | 1.6V to 5.5V - allows direct interfacing with 1.8V, 3.3V, or 5V microcontrollers without level shifters. |
| Input Leakage (ADJ/IN–) | ±1nA max at 85°C - permits use of >10MΩ resistor dividers with <0.1% error. |
Pinout & Package
Package: 8-Lead Plastic TSOT-23 (0.65mm pitch, 2.9mm × 1.6mm footprint). Exposed pad not present in TSOT-23 variant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC | Main power supply input | Accepts 2.5V–36V; UVLO triggers RST low below 1.85V; bypass with 0.1µF capacitor required. |
| DVCC | Logic supply reference for RST/OUT | Defines output high voltage (0.7×DVCC min); grounding enables open-drain mode; must be 1.6V–5.5V when active. |
| RST | Primary reset output | Active-low, DVCC-referenced push-pull; asserts low when ADJ falls below threshold; released after 200ms timeout + hysteresis recovery. |
| OUT | Spare comparator output | Active-low, DVCC-referenced push-pull; asserts low when IN– rises above threshold (overvoltage monitor). |
| IN– | Inverting threshold input | Configures overvoltage trip point via resistive divider; 400mV internal reference; ±6mV matching to ADJ. |
| ADJ | Reset threshold adjustment input | Configures undervoltage/brown-out trip point via resistive divider; 400mV internal reference; 2.5% hysteresis. |
| MR | Manual reset input | Pulled low to force RST low; 20µs minimum pulse width; internal 1µA pull-up; logic threshold 0.4–1.4V. |
| GND | Device ground reference | Common return for VCC, DVCC, and all signal pins; requires low-impedance PCB connection. |
Key Features
| Feature | Design Value |
|---|---|
| Nano-power operation | 850nA max ICC enables >10-year battery life in coin-cell–powered security sensors. |
| Dual independent comparators | ADJ for undervoltage reset + IN– for overvoltage detection enables single-chip battery window monitoring. |
| DVCC-referenced outputs | RST/OUT drive to DVCC voltage (not VCC), eliminating level-shifters when interfacing with low-voltage MCUs. |
| Wide temperature range | –40°C to 85°C industrial grade ensures reliability in automotive cabin and under-hood applications. |
| Adjustable thresholds via resistive dividers | Supports custom trip points from ~2.5V to 36V using standard 1% resistors; leakage error <0.1% with 10MΩ dividers. |
Applications
| Battery Disconnect Control | Automotive Regulator Supervision |
|---|---|
|
Use Scenario: Monitoring a 2S Li-ion pack (6–8.4V) to disconnect load before cell voltage drops below 2.5V. IC Role / Device Role / Timing Role: LTC2960CTS8-4#TRPBF acts as overvoltage detector on IN– and reset generator on ADJ, driving MOSFET gate drivers to cut off discharge path. Use Value: Prevents irreversible capacity loss and thermal runaway by enforcing precise 2.5V/cell cutoff using its 20mV hysteresis and 850nA quiescent draw. |
Use Scenario: Supervising 5V and 3.3V rails in automotive infotainment modules powered from a buck converter. IC Role / Device Role / Timing Role: LTC2960CTS8-4#TRPBF monitors regulator output via ADJ and detects overvoltage faults on IN–, asserting RST to halt MCU operation within 170µs. Use Value: Guarantees safe shutdown before downstream logic corruption occurs, leveraging its 1.5% threshold accuracy over –40°C to 85°C. |
| Portable Medical Device Power Management | Industrial Sensor Node Brown-Out Protection |
|
Use Scenario: Ensuring reliable startup and shutdown sequencing in handheld ECG monitors powered by CR2032 batteries. IC Role / Device Role / Timing Role: LTC2960CTS8-4#TRPBF generates clean reset pulses on ADJ and flags battery depletion via IN–, triggering firmware-controlled data save before shutdown. Use Value: Eliminates need for discrete voltage references and timers, reducing BOM count while maintaining 200ms reset hold time for EEPROM write completion. |
Use Scenario: Protecting LoRaWAN sensor nodes from erratic behavior during battery voltage sag in cold environments. IC Role / Device Role / Timing Role: LTC2960CTS8-4#TRPBF supervises main 3.6V supply using ADJ input and provides early warning via OUT on IN– when voltage exceeds safe margin. Use Value: Enables graceful sleep-state entry before brown-out, using its 850nA ICC to extend field deployment intervals beyond 5 years. |
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-input, 3.0V fixed reset threshold; no IN– comparator; 1.6µA ICC; SOT23-5 package. | Lacks dual-threshold capability and overvoltage detection; suitable only for basic reset generation. | Select only if system requires fixed 3.0V reset and ultra-low cost is prioritized over flexibility. |
| TPS3808G12DBVR | Single-input, adjustable threshold (0.405V ref); 1.8µA ICC; 200ms timeout; open-drain output; SOT23-6. | No IN– input; no DVCC logic reference; requires external pull-up; higher quiescent current. | Choose when DVCC-referenced push-pull outputs are unnecessary and board space allows larger SOT23-6 footprint. |
Compared with MAX6326TUT+T and TPS3808G12DBVR, the LTC2960CTS8-4#TRPBF uniquely delivers dual-threshold supervision (ADJ + IN–), nano-power operation (850nA), and DVCC-referenced active pull-up outputs in an 8-pin TSOT-23 - enabling compact, high-accuracy battery protection without external components.
Availability
LTC2960CTS8-4#TRPBF is available at Aetrix Electronics and suitable for automotive battery management, portable medical instrumentation, and industrial sensor node designs requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.
Supply support for LTC2960CTS8-4#TRPBF 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, datasheets, and application engineering for the LTC portfolio. Linear's legacy focus on precision analog and power management remains core to ADI's industrial and automotive strategy.
The LTC2960CTS8-4#TRPBF belongs to Linear's nano-power voltage supervisor family, engineered specifically for battery-critical applications where ultra-low ICC, wide VCC range, and dual-threshold detection are mandatory - such as automotive telematics, portable diagnostics, and energy-harvesting IoT endpoints.
FAQ
What is the function of the DVCC pin on the LTC2960CTS8-4#TRPBF?
The DVCC pin on the LTC2960CTS8-4#TRPBF sets the logic-high voltage level for the RST and OUT outputs. When DVCC is connected to a 1.6V–5.5V supply, both outputs actively drive to that voltage (push-pull mode), eliminating external pull-up resistors. Grounding DVCC reconfigures them as open-drain outputs. This flexibility allows direct interfacing with diverse MCU I/O voltages without level-shifting circuitry - a key advantage of the LTC2960CTS8-4#TRPBF over single-supply supervisors.
How does the LTC2960CTS8-4#TRPBF differ from the LTC2960-1 or LTC2960-2 variants?
The LTC2960CTS8-4#TRPBF is the IN–/fixed-200ms/active-pull-up variant: it uses the IN– input for overvoltage detection (not IN+), has no RT pin (200ms timeout only), and replaces RT with DVCC for logic-level output control. In contrast, LTC2960-1 uses IN+, offers selectable 15ms/200ms timeout via RT, and uses 36V open-drain outputs. These functional and pinout differences make the LTC2960CTS8-4#TRPBF non-interchangeable without schematic and layout changes.
Can the LTC2960CTS8-4#TRPBF monitor a 24V battery directly without external components?
Yes - the LTC2960CTS8-4#TRPBF accepts up to 36V on VCC and supports input resistive dividers on ADJ and IN– with ≤1nA leakage, enabling direct 24V monitoring. For example, a 60:1 divider (e.g., 5.9MΩ + 100kΩ) scales 24V to 400mV at ADJ for a 24V reset threshold. No external regulators or clamps are needed, though a 0.1µF VCC bypass capacitor is mandatory per the datasheet. This direct interface capability is a defining feature of the LTC2960CTS8-4#TRPBF.
What is the minimum detectable pulse width on the MR input of the LTC2960CTS8-4#TRPBF?
The MR input of the LTC2960CTS8-4#TRPBF reliably detects logic-low pulses as short as 20µs, as specified in the Electrical Characteristics table. This ensures robust manual reset triggering even in noisy environments or fast-switching systems. The internal 1µA pull-up and 0.4–1.4V logic threshold provide noise immunity, and the resulting RST assertion follows within 7µs typical propagation delay. This timing behavior is fully characterized and guaranteed for the LTC2960CTS8-4#TRPBF across its –40°C to 85°C operating range.
Does the LTC2960CTS8-4#TRPBF support operation down to 0V VCC?
No - the LTC2960CTS8-4#TRPBF requires VCC ≥ 2.5V to operate correctly. Below 2.5V, the internal reference and comparators become uncalibrated. However, it guarantees RST remains low for VCC ≥ 1.2V (UVLO region), providing fail-safe behavior during power-down. When VCC drops below 1.2V, RST and OUT may float or behave unpredictably. This defined UVLO behavior ensures deterministic reset assertion during brown-out - a critical safety feature built into the LTC2960CTS8-4#TRPBF design.
LTC2960CTS8-4#TRPBF 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:
- 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#TRPBF FAQ
1.How can I place an order for LTC2960CTS8-4#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2960CTS8-4#TRPBF 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#TRPBF reliable?
The price and inventory of LTC2960CTS8-4#TRPBF 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#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC2960CTS8-4#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2960CTS8-4#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2960CTS8-4#TRPBF?
LTC2960CTS8-4#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2960CTS8-4#TRPBF 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#TRPBF?
For technical support, including LTC2960CTS8-4#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2960CTS8-4#TRPBF requirements.
6.How does Aetrix verify that LTC2960CTS8-4#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC2960CTS8-4#TRPBF 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#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC2960CTS8-4#TRPBF?
All LTC2960CTS8-4#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2960CTS8-4#TRPBF, 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#TRPBF part is unused and in its original packaging.
Return procedure for LTC2960CTS8-4#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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