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Analog Devices Inc. LTC2960HTS8-4
- Part No.:
- LTC2960HTS8-4
- Manufacturer:
- Analog Devices Inc.
- Category:
- Supervisors
- Package:
- SOT-23-8 Thin, TSOT-23-8
- Datasheet:
-
LTC2960HTS8-4.pdf
- Description:
- IC SUPERVISOR 2 CHANNEL TSOT23-8
- Quantity:
- Payment:
- Shipping:
Inventory:1,991
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Product details
Overview
LTC2960HTS8-4 from Analog Devices (formerly Linear Technology) is a nano-power, high-voltage dual-threshold voltage supervisor IC designed for battery monitoring and system reset control 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 125°C. It is used in automotive battery disconnect circuits and deep-discharge protection systems.
For engineers reviewing the LTC2960HTS8-4 datasheet, LTC2960HTS8-4 pinout, LTC2960HTS8-4 application, or LTC2960HTS8-4 equivalent, key selection considerations include its IN– comparator architecture, DVCC-referenced push-pull outputs, 200ms fixed timeout, ±2mV ADJ/IN– threshold matching, and TSOT-23-8 package compatibility with high-temp automotive designs.
Technical Context
The LTC2960HTS8-4 implements two independent comparators: one monitors the ADJ pin against a 400mV internal reference to generate RST, while the second compares the monitored voltage against the IN– pin (also referenced to 400mV) to drive the OUT signal. Its hysteresis is 20mV on IN– (5% of threshold), and it includes a manual reset (MR) input with 0.4V logic threshold and 20µs minimum pulse width detection.
It operates across 2.5V–36V VCC and 1.6V–5.5V DVCC, supports open-drain or active pull-up output modes via DVCC connection, and guarantees RST low state down to VCC = 1.2V. The device uses internal 400mV bandgap reference with 1.5% max total accuracy over temperature and exhibits <1nA input leakage at 125°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 2.5V to 36V - enables direct monitoring of multicell Li-ion, 12V/24V automotive, and industrial rails without external regulators. |
| Quiescent Current | 850nA max at 36V/125°C - preserves battery life in always-on monitoring applications such as telematics and ECU backup circuits. |
| Reset Threshold Accuracy | ±1.5% over –40°C to 125°C - ensures reliable brown-out detection across full automotive temperature range without calibration. |
| IN– Comparator Hysteresis | 20mV (5% of 400mV threshold) - prevents false triggering during supply transients in noisy vehicle electrical systems. |
| Reset Timeout | Fixed 200ms - provides sufficient time for microcontroller initialization and power rail stabilization after recovery. |
| DVCC Output Logic Range | 1.6V to 5.5V - allows direct interfacing with 1.8V, 3.3V, or 5V logic domains without level shifters. |
| Input Leakage (ADJ/IN–) | ±1nA max at 125°C - permits use of >10MΩ resistor dividers for high-impedance battery sensing with <0.1% error. |
Pinout & Package
Package: 8-lead TSOT-23 (ThinSOT™), 3.0mm × 1.7mm, –40°C to 125°C operating range, exposed pad optional.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC | Main power supply input | Accepts 2.5V–36V; UVLO disables outputs below 1.85V; bypass with 0.1µF capacitor required. |
| DVCC | Logic supply for RST/OUT outputs | Sets high-level output voltage (0.7×DVCC min); grounding enables open-drain mode; must be 1.6V–5.5V when active. |
| RST | Reset output | Active-low, DVCC-referenced push-pull; asserts low when ADJ falls below 400mV; releases after 200ms timeout + hysteresis recovery. |
| OUT | Secondary status output | Active-low, DVCC-referenced push-pull; asserts low when monitored voltage rises above IN– threshold; used for overvoltage detection or NMI signaling. |
| IN– | Inverting comparator input | Configures rising-threshold detection point (e.g., battery overvoltage); tied to resistive divider from monitored rail to GND. |
| ADJ | Reset threshold adjustment input | Configures falling-threshold detection (e.g., low-battery cutoff); referenced to internal 400mV bandgap; matched to IN– within ±2mV. |
| MR | Manual reset input | Active-low; 0.4V threshold; pulls RST low immediately; release triggers 200ms timeout before RST returns high. |
| GND | Device ground reference | Common return for VCC, DVCC, inputs, and outputs; requires low-impedance PCB connection. |
Key Features
| Feature | Design Value |
|---|---|
| Nano-power operation | 850nA max ICC at 36V/125°C enables >10-year battery life in coin-cell–powered remote sensors. |
| IN– comparator architecture | Enables overvoltage detection (e.g., battery pack overcharge) without external op-amps or comparators. |
| DVCC-configurable outputs | Eliminates external pull-up resistors and associated static power loss; improves rise time vs. open-drain alternatives. |
| 200ms fixed timeout | Guarantees deterministic reset hold time for safety-critical microcontrollers without requiring external timing components. |
| High-temp grade (H-grade) | Qualified for –40°C to 125°C ambient, meeting AEC-Q100 Grade 0 requirements for under-hood automotive use. |
| 400mV precision reference | 1.5% max error over temperature enables accurate threshold setting with standard 1% resistors in divider networks. |
Applications
| Battery Disconnect Control | Automotive Power Supervision |
|---|---|
Use Scenario: Monitoring 3S–4S Li-ion packs (9–16.8V) to prevent deep discharge by disconnecting load when cell voltage drops below safe threshold. IC Role / Device Role / Timing Role: LTC2960HTS8-4 acts as primary undervoltage lockout (UVLO) controller, driving gate of external MOSFET (e.g., Si4435) via OUT signal upon ADJ threshold breach. Use Value: Prevents irreversible capacity loss and thermal runaway risk by enforcing 2.5V/cell cutoff with <1.5% accuracy across full temperature range. |
Use Scenario: Supervising 12V battery rail in engine control units (ECUs) to detect cranking dips, alternator faults, and brown-outs. IC Role / Device Role / Timing Role: LTC2960HTS8-4 provides dual-rail monitoring: ADJ senses main 12V rail for reset generation, while IN– detects overvoltage events (>16V) for fault logging. Use Value: Enables fail-safe MCU reset and diagnostic flag assertion within 170µs propagation delay, meeting ISO 16750-2 transient immunity requirements. |
| Telematics Backup Power Monitor | Industrial Battery Management System |
Use Scenario: Monitoring supercapacitor or Li-SOCl₂ backup supply in GPS trackers to ensure valid RTC and memory retention during main power loss. IC Role / Device Role / Timing Role: LTC2960HTS8-4 supervises backup rail with ADJ input; MR pin accepts wake-up signal from host MCU to force controlled shutdown sequence via OUT. Use Value: 850nA quiescent current extends 220mAh Li-SOCl₂ battery life to >15 years; 200ms timeout aligns with EEPROM write cycles. |
Use Scenario: Monitoring auxiliary 24V DC bus in programmable logic controllers (PLCs) to initiate graceful I/O shutdown before power collapse. IC Role / Device Role / Timing Role: LTC2960HTS8-4 drives RST to PLC microcontroller and OUT to FPGA configuration manager, enabling coordinated power-down sequencing. Use Value: Dual-output architecture eliminates need for discrete logic gates; ±2mV ADJ/IN– matching ensures consistent trip points across multiple sensor nodes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage supervisor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6326UT29D3+T | Single-threshold, 2.93V fixed reset; no IN– comparator; 3µA ICC; SOT23-5 package | Lacks dual-monitoring capability and adjustable thresholds; suitable only for basic reset-only functions | Select only if design requires fixed 2.93V reset with minimal BOM count and no overvoltage detection needed. |
| TPS3808G33DBVR | Adjustable threshold via external resistor; 1.8µA ICC; 200ms timeout; open-drain outputs; SOT23-6 | No IN– input; no DVCC logic supply; higher quiescent current; requires external pull-ups | Choose when DVCC interface is unnecessary and cost-sensitive designs prioritize TI's broad distribution network over nano-power optimization. |
Compared with MAX6326UT29D3+T and TPS3808G33DBVR, the LTC2960HTS8-4 uniquely delivers dual-threshold supervision (ADJ + IN–), sub-1µA quiescent current, and DVCC-referenced push-pull outputs in a high-temp TSOT-23 package-enabling compact, low-power, and functionally complete battery management in space-constrained automotive and industrial systems.
Availability
LTC2960HTS8-4 is available at Aetrix Electronics and suitable for automotive battery monitoring, industrial PLC power supervision, and telematics backup power management requiring stable component supply across extended temperature ranges.
Supply support for LTC2960HTS8-4 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, Inc. (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing technologies, serving industrial, automotive, communications, and healthcare markets.
The LTC2960 family was developed by Linear Technology (acquired by ADI in 2017) specifically for ultra-low-power, high-voltage system supervision in battery-powered and automotive applications where reliability across extreme temperatures is critical.
FAQ
What is the function of the DVCC pin on the LTC2960HTS8-4?
The DVCC pin on the LTC2960HTS8-4 sets the logic high voltage level for both RST and OUT outputs. When DVCC is connected to a 1.6V–5.5V supply, outputs drive actively to DVCC (push-pull mode), eliminating external pull-up resistors and reducing static power. Grounding DVCC reconfigures outputs as open-drain. This flexibility allows the LTC2960HTS8-4 to interface directly with diverse logic families without level-shifting circuitry.
How does the LTC2960HTS8-4 differ from the LTC2960HTS8-2?
The LTC2960HTS8-4 and LTC2960HTS8-2 share the same TSOT-23-8 package and –40°C to 125°C rating, but differ in output architecture and timeout control. The LTC2960HTS8-4 uses DVCC for active pull-up outputs and has a fixed 200ms reset timeout, whereas the LTC2960HTS8-2 uses RT pin for selectable 15ms/200ms timeout and provides 36V open-drain outputs. The LTC2960HTS8-4 is optimized for low-power logic interfacing; the -2 variant suits higher-voltage open-drain bus applications.
Can the LTC2960HTS8-4 monitor voltages above 36V?
No-the LTC2960HTS8-4 VCC absolute maximum rating is 40V, and its ADJ/IN– inputs are limited to 3.5V. To monitor voltages above 36V (e.g., 48V telecom or 60V EV systems), an external resistive divider must scale the input to ≤3.5V at ADJ/IN–, while ensuring VCC remains within 2.5V–36V. For transients exceeding 40V, external protection (e.g., Zener clamp + series resistor per Figure 7a in the datasheet) is mandatory to avoid damage to the LTC2960HTS8-4.
What is the minimum recommended resistor value for the ADJ input divider network?
The LTC2960HTS8-4 ADJ input leakage is ±1nA max at 125°C. To limit divider error to <0.1%, the total divider current should exceed 1µA. For a 36V monitored rail and 400mV threshold, a 36MΩ total divider resistance yields ~1µA current-making 10MΩ–36MΩ practical. Standard 1% values like 30.1MΩ (R1) + 1.02MΩ (R2) are commonly used. Lower values increase power but improve noise immunity; values below 1MΩ unnecessarily raise ICC without benefit.
Does the LTC2960HTS8-4 support hot-swap or inrush current protection?
The LTC2960HTS8-4 itself does not provide inrush limiting or hot-swap control, but it is designed to operate reliably during hot-swap events. Its VCC input tolerates 40V abs max, and application note Figure 7(b) shows damping with a 20Ω series resistor to suppress ringing. When combined with external MOSFETs (e.g., driven by OUT), the LTC2960HTS8-4 enables controlled power-up sequencing-such as delaying load connection until VCC stabilizes-making it a key enabler in robust hot-swap architectures.
LTC2960HTS8-4 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:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TSOT-23-8
LTC2960HTS8-4 FAQ
1.How can I place an order for LTC2960HTS8-4 through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2960HTS8-4 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 LTC2960HTS8-4 reliable?
The price and inventory of LTC2960HTS8-4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC2960HTS8-4 is usually 5 days.
3.What payment methods are accepted for LTC2960HTS8-4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2960HTS8-4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2960HTS8-4?
LTC2960HTS8-4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2960HTS8-4 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 LTC2960HTS8-4?
For technical support, including LTC2960HTS8-4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2960HTS8-4 requirements.
6.How does Aetrix verify that LTC2960HTS8-4 is sourced from the original manufacturer or authorized distributors?
All LTC2960HTS8-4 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 LTC2960HTS8-4 meets industry standards.
7.What is the process for return or replacement of LTC2960HTS8-4?
All LTC2960HTS8-4 units undergo pre-shipment inspection (PSI). If there is an issue with LTC2960HTS8-4, 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 LTC2960HTS8-4 part is unused and in its original packaging.
Return procedure for LTC2960HTS8-4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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