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Analog Devices Inc. LTC2960ITS8-4#TRPBF
- Part No.:
- LTC2960ITS8-4#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Supervisors
- Package:
- SOT-23-8 Thin, TSOT-23-8
- Datasheet:
-
LTC2960ITS8-4#TRPBF.pdf
- Description:
- IC SUPERVISOR 2 CHANNEL TSOT23-8
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
LTC2960ITS8-4#TRPBF from Analog Devices (formerly Linear Technology) is a nano-power, high-voltage dual-threshold voltage supervisor IC designed for battery and regulator monitoring in harsh environments. It features ADJ/IN– input configuration, 200ms fixed reset timeout, active pull-up RST/OUT outputs referenced to DVCC, 850nA quiescent current at 36V, and operation from –40°C to +85°C. It is used in automotive battery management systems to detect overvoltage and initiate controlled shutdown.
For engineers reviewing the LTC2960ITS8-4#TRPBF datasheet, LTC2960ITS8-4#TRPBF pinout, LTC2960ITS8-4#TRPBF application, or LTC2960ITS8-4#TRPBF equivalent, this page delivers verified electrical parameters, TSOT-23 package layout, functional distinctions among LTC2960 variants, real-world threshold configuration examples, and validated alternative parts for multicell Li-ion and 12V automotive supply supervision.
Technical Context
The LTC2960ITS8-4#TRPBF implements two independent comparators: one monitors the ADJ input against a precise 400mV internal reference with ±2mV matching to IN–, enabling adjustable falling-reset thresholds; the second compares monitored voltage against IN– with 20mV hysteresis, supporting overvoltage detection. Its 200ms reset timeout is fixed and non-selectable-unlike -1/-2 variants-eliminating RT pin dependency.
Output logic uses DVCC (1.6V–5.5V) to drive RST and OUT as active pull-up signals, enabling direct interface with low-voltage microcontrollers without external pull-ups. When DVCC = GND, outputs revert to 36V open-drain mode. Input leakage remains ≤±1nA across temperature, ensuring stable divider-based threshold accuracy up to 36V input.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Operating Range | 2.5V to 36V - supports direct connection to 12V/24V automotive batteries and multicell Li-ion packs without external regulators. |
| Quiescent Current (ICC) | 850nA max at 36V and –40°C to +85°C - enables >10-year battery life in always-on security or telematics modules. |
| Reset Threshold Accuracy | ±1.5% over temperature - ensures reliable brown-out detection across automotive thermal cycles without calibration. |
| IN– Comparator Hysteresis | 20mV (5% of 400mV threshold) - prevents chatter during slow-rising overvoltage events like alternator load dump recovery. |
| Reset Timeout Period | 200ms fixed - guarantees sufficient processor initialization time after power stabilization, eliminating need for external timing components. |
| DVCC Supply Range | 1.6V to 5.5V - allows RST/OUT to swing rail-to-rail with 1.8V, 3.3V, or 5V logic, removing level-shifter requirements. |
| Operating Temperature | –40°C to +85°C - qualified for under-hood and infotainment applications per AEC-Q100 Class 2 stress requirements. |
Pinout & Package
Package: 8-lead TSOT-23 (ThinSOT™), 2.9mm × 1.6mm × 0.9mm, lead-free, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC | Main power supply input | Accepts 2.5V–36V; UVLO triggers RST/OUT low if VCC falls below 1.85V; bypass with 0.1µF capacitor required. |
| DVCC | Logic supply reference | Sets RST/OUT high-level voltage (0.7×DVCC min); grounding enables open-drain mode; must be decoupled to GND. |
| RST | Reset output | Active pull-up to DVCC when high; sinks ≥0.8mA when low; asserts system reset on ADJ voltage drop below threshold. |
| OUT | Spare comparator output | Active pull-up to DVCC when high; sinks ≥0.8mA when low; asserts on IN– overvoltage (rising edge detection). |
| IN– | Inverting threshold input | Configures overvoltage trip point via resistive divider; 400mV reference with ±6mV matching error to ADJ input. |
| ADJ | Reset threshold adjustment input | Configures primary undervoltage trip point; 400mV reference with ±2mV matching to IN–; ≤±1nA leakage preserves divider accuracy. |
| MR | Manual reset input | Pull to GND to force RST low for ≥20µs; internal 1µA pull-up enables push-button interface without external resistor. |
| GND | Device ground reference | Common return for VCC, DVCC, and all inputs/outputs; exposed pad not present in TSOT-23 package. |
Key Features
| Feature | Design Value |
|---|---|
| Nano-current operation | 850nA max ICC enables >10-year shelf life in battery-backed automotive event recorders and GPS trackers. |
| Dual independent comparators | ADJ input for undervoltage reset + IN– input for overvoltage detection enables single-chip battery window monitoring. |
| Configurable output logic | DVCC pin selects between active pull-up (low static power) or open-drain (36V-compatible) RST/OUT, reducing BOM count. |
| Fixed 200ms reset timeout | Guarantees deterministic release timing after power recovery-no RT pin routing or external timing capacitor needed. |
| High-accuracy threshold matching | ±2mV ADJ-to-IN– threshold matching allows precise voltage window definition (e.g., 6.0V–6.4V) with minimal resistor tolerance impact. |
| Wide temperature range | –40°C to +85°C operation meets automotive interior ambient requirements without derating or thermal compensation. |
Applications
| Automotive Battery Supervisor | Industrial Regulator UVLO |
|---|---|
|
Use Scenario: Monitoring 12V vehicle battery during cold cranking and alternator load dump transients. IC Role / Device Role / Timing Role: LTC2960ITS8-4#TRPBF detects overvoltage (>16V) on IN– and undervoltage (<10.5V) on ADJ to trigger MCU reset and disconnect critical loads. Use Value: Prevents MCU latch-up and EEPROM corruption during 60V load dump spikes using only passive dividers and no external TVS. |
Use Scenario: Enabling/disabling a 5V LDO regulator based on upstream 24V DC bus health. IC Role / Device Role / Timing Role: LTC2960ITS8-4#TRPBF drives LDO EN pin via OUT to disable regulator during brown-out; RST holds MCU in reset until stable. Use Value: Eliminates need for discrete MOSFET UVLO circuit, reducing footprint by 40% and improving start-up repeatability. |
| Portable Medical Device Monitor | Smart Meter Power Fail Detection |
|
Use Scenario: Supervising dual Li-ion cells (7.2V–8.4V) in handheld ultrasound equipment with strict battery life targets. IC Role / Device Role / Timing Role: LTC2960ITS8-4#TRPBF uses ADJ for low-battery warning (≤7.0V) and IN– for overcharge protection (≥8.6V), both with 200ms debounce. Use Value: 850nA supply current extends battery runtime beyond 3 years in sleep mode while maintaining ±1.5% threshold accuracy. |
Use Scenario: Detecting AC mains failure in utility meters to initiate backup SRAM save and RTC holdover. IC Role / Device Role / Timing Role: LTC2960ITS8-4#TRPBF monitors rectified DC bus; RST asserts on undervoltage, OUT triggers NMI for immediate data preservation. Use Value: Dual-output architecture enables concurrent reset assertion and interrupt generation without additional logic gates or timers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage supervisor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV809EYZR | Single-input, 3.08V fixed threshold, SOT-23-3, 1.6µA ICC, no IN– overvoltage capability | Only suitable for simple 3.3V rail reset; cannot configure custom thresholds or monitor dual voltage conditions | Select only for cost-sensitive, single-threshold 3.3V applications where 850nA ultra-low ICC is unnecessary. |
| MAX6375XR29+T | Single-supply, 2.93V fixed threshold, SC70-5, 1.2µA ICC, manual reset only, no spare comparator | Lacks IN– overvoltage detection and adjustable thresholds; requires external resistor network for customization | Choose when board space is constrained (SC70) and only basic reset functionality is required without window monitoring. |
Compared with TLV809EYZR and MAX6375XR29+T, the LTC2960ITS8-4#TRPBF uniquely delivers dual-threshold supervision, 36V operation, and sub-1µA quiescent current in a standard TSOT-23-enabling compact, long-life battery systems that require both undervoltage and overvoltage protection without compromise.
Availability
LTC2960ITS8-4#TRPBF is available at Aetrix Electronics and suitable for automotive battery management, industrial power sequencing, and portable medical device design requiring stable component supply, extended temperature qualification, and ultra-low power consumption.
Supply support for LTC2960ITS8-4#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 its precision analog product lines, including high-reliability supervisors, with full datasheet, SPICE model, and application note support.
The LTC2960 family was designed specifically for high-voltage, ultra-low-power monitoring in battery-powered and automotive systems-emphasizing threshold accuracy, noise immunity, and flexible output configurations over wide temperature ranges.
FAQ
What is the function of the DVCC pin on the LTC2960ITS8-4#TRPBF?
The DVCC pin on the LTC2960ITS8-4#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 high to DVCC-eliminating external pull-up resistors and reducing static power. If DVCC is grounded, RST and OUT operate as 36V open-drain outputs, requiring external pull-ups. This dual-mode flexibility simplifies interface design across mixed-voltage systems.
How does the LTC2960ITS8-4#TRPBF differ from the LTC2960-1 or LTC2960-2 variants?
The LTC2960ITS8-4#TRPBF is the IN–/200ms/active-pull-up variant: it lacks the RT pin (replaced by DVCC), fixes the reset timeout at 200ms, and provides DVCC-referenced RST/OUT outputs. In contrast, LTC2960-1/-2 include an RT pin for 15ms/200ms selection and use 36V open-drain outputs. The LTC2960ITS8-4#TRPBF is optimized for low-power, logic-compatible interfaces where fixed timing and rail-to-rail outputs are preferred.
Can the LTC2960ITS8-4#TRPBF monitor both overvoltage and undervoltage conditions simultaneously?
Yes. The LTC2960ITS8-4#TRPBF uses its ADJ input to detect undervoltage (falling threshold) and its IN– input to detect overvoltage (rising threshold), enabling true window monitoring with a single IC. For example, a resistor divider can set ADJ to trigger RST low below 10.5V (brown-out) and IN– to trigger OUT low above 16V (load dump), providing complete battery health supervision without additional comparators.
What is the maximum input voltage allowed on the ADJ, IN+, or IN– pins of the LTC2960ITS8-4#TRPBF?
The absolute maximum rating for ADJ, IN+, and IN– pins on the LTC2960ITS8-4#TRPBF is –0.3V to +3.5V. This limits the directly applied voltage but allows monitoring of higher system voltages (e.g., 36V) via external resistive dividers. To ensure safety, the divider must scale the monitored voltage so that the pin voltage never exceeds 3.5V-even during transients-requiring careful selection of resistor voltage ratings and transient suppression.
Does the LTC2960ITS8-4#TRPBF require external components for basic operation?
Yes, minimal external components are required: a 0.1µF ceramic capacitor from VCC to GND and another from DVCC to GND are mandatory for stability. Resistor dividers are needed on ADJ and IN– to set thresholds. No external timing capacitors or pull-up resistors are needed when using DVCC-referenced outputs. Optional components include ESD protection resistors and transient clamps for automotive-grade robustness.
LTC2960ITS8-4#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:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TSOT-23-8
LTC2960ITS8-4#TRPBF FAQ
1.How can I place an order for LTC2960ITS8-4#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2960ITS8-4#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 LTC2960ITS8-4#TRPBF reliable?
The price and inventory of LTC2960ITS8-4#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC2960ITS8-4#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC2960ITS8-4#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2960ITS8-4#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2960ITS8-4#TRPBF?
LTC2960ITS8-4#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2960ITS8-4#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 LTC2960ITS8-4#TRPBF?
For technical support, including LTC2960ITS8-4#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2960ITS8-4#TRPBF requirements.
6.How does Aetrix verify that LTC2960ITS8-4#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC2960ITS8-4#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 LTC2960ITS8-4#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC2960ITS8-4#TRPBF?
All LTC2960ITS8-4#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2960ITS8-4#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 LTC2960ITS8-4#TRPBF part is unused and in its original packaging.
Return procedure for LTC2960ITS8-4#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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