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Analog Devices Inc. LTC2960HDC-4
- Part No.:
- LTC2960HDC-4
- Manufacturer:
- Analog Devices Inc.
- Category:
- Supervisors
- Package:
- 8-WFDFN Exposed Pad
- Datasheet:
-
LTC2960HDC-4.pdf
- Description:
- IC SUPERVISOR 2 CHANNEL 8DFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,220
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Product details
Overview
LTC2960HDC-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 125°C - ideal for battery-backed automotive and industrial power monitoring.
For engineers reviewing the LTC2960HDC-4 datasheet, LTC2960HDC-4 pinout, LTC2960HDC-4 application, or LTC2960HDC-4 equivalent, this page provides verified functional context, validated pin roles, confirmed thermal and electrical specifications, and real-world use cases in multicell Li-ion supervision, regulator UVLO, and deep-discharge protection circuits.
Technical Context
The LTC2960HDC-4 implements two independent comparators: one monitors the ADJ input against a 400mV internal reference to generate RST with 2.5% hysteresis and 200ms timeout; the second compares monitored voltage against IN– with 5% hysteresis to drive OUT. Its dual-supply architecture separates VCC (up to 36V) from DVCC (1.6V–5.5V), enabling logic-level output compatibility independent of main rail voltage.
Unlike variants with RT pin or open-drain outputs, the LTC2960HDC-4 replaces RT with DVCC and uses active pull-up outputs - eliminating external pull-up resistors and reducing static power dissipation. Input leakage is limited to ±0.1nA at –40°C to 85°C, supporting high-impedance resistor dividers up to 8MΩ without significant threshold error.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Operating Range | 2.5V to 36V - supports direct connection to 12V/24V automotive rails and multicell battery stacks without external regulators. |
| Quiescent Current (ICC) | 850nA typical at 36V and –40°C to 125°C - enables >10-year battery life in always-on monitoring applications. |
| Reset Threshold Accuracy | ±1.5% over full temperature range - ensures reliable brown-out detection across extreme ambient conditions. |
| ADJ/IN– Threshold Voltage | 400mV ±6mV - stable reference enabling precise external resistor-divider programming of falling/rising thresholds. |
| Reset Timeout Period | 200ms fixed - guarantees sufficient system stabilization time after power recovery before releasing RST. |
| DVCC Supply Range | 1.6V to 5.5V - allows RST/OUT logic levels to match MCU I/O voltages (e.g., 1.8V, 3.3V, or 5V) regardless of VCC. |
| Operating Temperature | –40°C to +125°C - qualified for under-hood automotive and industrial control environments. |
Pinout & Package
Package: 8-lead (2mm × 2mm) plastic DFN with exposed pad (DC8); RoHS-compliant, lead-free finish; thermal resistance θJA = 80.6°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC | Main power supply input | Accepts 2.5V–36V; powers internal circuitry and enables UVLO shutdown below 1.85V; bypass with 0.1µF capacitor. |
| DVCC | Logic supply input | Sets RST/OUT high-level voltage (0.7×DVCC min); grounding converts outputs to open-drain mode. |
| RST | Reset output | Active-pull-up to DVCC when high; pulls low when ADJ falls below 400mV; released after 200ms timeout and 2.5% hysteresis recovery. |
| OUT | Spare comparator output | Active-pull-up to DVCC when high; pulls low when monitored voltage rises above IN– threshold; released after 5% hysteresis undershoot. |
| IN– | Inverting threshold input | Configures rising-edge detection point via external resistor divider; supports overvoltage and undervoltage monitoring. |
| ADJ | Reset threshold adjustment input | Primary monitoring node for RST generation; tied to resistor divider to set falling-edge reset voltage. |
| MR | Manual reset input | Logic-low pulse ≥20µs forces RST low; internal 1µA pull-up enables push-button interface without external resistor. |
| GND | Ground reference | Common return for VCC, DVCC, and signal inputs; exposed pad may be connected to PCB ground for thermal relief. |
Key Features
| Feature | Design Value |
|---|---|
| Nano-current operation | 850nA max ICC enables multi-year operation on coin cells or energy-harvesting sources. |
| Dual independent comparators | ADJ-driven RST for power-fail reset + IN–-driven OUT for overvoltage warning or controlled shutdown signaling. |
| Configurable output logic | DVCC pin selects between active pull-up (low static power) or open-drain (high-voltage interfacing) for both RST and OUT. |
| High-accuracy threshold matching | ±2mV ADJ-to-IN– threshold matching ensures consistent trip points across dual-monitoring paths. |
| Robust input protection | ADJ/IN– inputs rated to 3.5V absolute max; supports safe monitoring of up to 150V supplies via external attenuators. |
| Automotive-grade qualification | –40°C to +125°C operating range and AEC-Q200 alignment for under-hood reliability. |
Applications
| Battery-Powered Telematics | Automotive Power Sequencing |
|---|---|
|
Use Scenario: Monitoring 12V vehicle battery during engine cranking and stop-start cycles where voltage dips to 6V and surges to 16V. IC Role / Device Role / Timing Role: LTC2960HDC-4 generates RST on VBAT <6.2V (brown-out) and OUT on VBAT >14.5V (overvoltage), triggering MCU fault handling and relay disconnect. Use Value: Dual-threshold detection prevents false resets during transient dips while protecting downstream electronics from surge damage. |
Use Scenario: Controlling power-up sequence of infotainment ECU modules requiring strict voltage ramp timing and fault isolation. IC Role / Device Role / Timing Role: LTC2960HDC-4 supervises 5V and 3.3V rails; RST holds MCU in reset until both are stable, while OUT signals readiness to enable peripheral power switches. Use Value: 200ms fixed timeout ensures adequate settling time before release, eliminating need for external RC timing components. |
| Industrial Battery Management System | Portable Medical Device Supervision |
|
Use Scenario: Supervising 4S Li-ion pack (14.8V nominal) with programmable low-battery cutoff at 12.0V and overvoltage limit at 16.8V. IC Role / Device Role / Timing Role: LTC2960HDC-4 uses ADJ for 12.0V undervoltage reset and IN– for 16.8V overvoltage interrupt; MR enables manual calibration mode entry. Use Value: ±1.5% threshold accuracy ensures precise cell protection without margin overdesign, extending usable battery capacity. |
Use Scenario: Ensuring reliable operation of handheld ultrasound device powered by removable Li-ion battery with strict safety-critical reset requirements. IC Role / Device Role / Timing Role: LTC2960HDC-4 monitors battery voltage and system 3.3V rail; RST asserts on any rail failure, while DVCC=1.8V aligns RST logic level with ultra-low-power MCU I/O. Use Value: Active pull-up outputs eliminate pull-up resistors, reducing BOM count and board space in compact, battery-constrained designs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage supervisor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6326US29D3+ | Single-threshold, 2.93V fixed reset; no spare comparator; 3µA ICC; SOT23-3 package | Only provides basic reset function; lacks dual-input flexibility and nano-power efficiency | Select when only simple reset is needed and board space is extremely constrained |
| TPS3808G33DBVR | Adjustable threshold (0.405V ref), 1.8µA ICC, 200ms timeout, open-drain RST; no second comparator output | Supports adjustable reset but omits dedicated IN– comparator for overvoltage detection | Choose when DVCC-referenced active pull-up is unnecessary and cost is primary driver |
Compared with MAX6326US29D3+ and TPS3808G33DBVR, the LTC2960HDC-4 uniquely combines dual independent comparators, 850nA quiescent current, and DVCC-referenced active pull-up outputs - making it the only option capable of simultaneous low-battery reset and overvoltage warning in space- and power-constrained automotive or portable systems.
Availability
LTC2960HDC-4 is available at Aetrix Electronics and suitable for automotive power sequencing, industrial battery management, and portable medical device supervision requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for LTC2960HDC-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 and maintains its precision analog and power management portfolio with rigorous automotive and industrial qualification standards.
The LTC2960 family was designed specifically for high-voltage, ultra-low-power supervision in multicell battery systems and harsh-environment power rails - emphasizing accuracy, thermal stability, and flexible threshold configuration.
FAQ
What is the function of the DVCC pin on the LTC2960HDC-4?
The DVCC pin on the LTC2960HDC-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 actively drive to that voltage; when grounded, outputs revert to open-drain mode requiring external pull-ups. This enables seamless interfacing with mixed-voltage systems without level shifters - a key design advantage of the LTC2960HDC-4 over single-rail supervisors.
How does the LTC2960HDC-4 differ from the LTC2960-2 variant?
The LTC2960HDC-4 shares the ADJ/IN– input configuration and 200ms timeout with LTC2960-2, but differs critically in package temperature grade (–40°C to 125°C vs. typically –40°C to 85°C) and output architecture: LTC2960HDC-4 uses DVCC-referenced active pull-up outputs, whereas LTC2960-2 uses 36V open-drain outputs with RT pin. The LTC2960HDC-4 is not pin-compatible with LTC2960-2 due to DVCC/RT pin swap - requiring PCB layout revision for migration.
Can the LTC2960HDC-4 monitor voltages above 36V?
Yes - the LTC2960HDC-4 can safely monitor voltages exceeding 36V using external resistor dividers on ADJ or IN–, provided the input voltage at those pins remains ≤3.5V (absolute maximum). For example, a 150V rail can be scaled to 400mV using a 375:1 divider. The datasheet confirms this capability with application circuits supporting up to 200V transients via Zener clamping - making the LTC2960HDC-4 suitable for telecom and industrial HV monitoring when properly configured.
What is the minimum detectable pulse width on the MR input of the LTC2960HDC-4?
The LTC2960HDC-4 guarantees detection of manual reset pulses as short as 20µs, per the Electrical Characteristics table. This specification applies across the full –40°C to 125°C temperature range and ensures reliable button-press or logic-triggered reset assertion even in high-noise environments. The internal 1µA pull-up eliminates need for external biasing, simplifying implementation of momentary switch interfaces in the LTC2960HDC-4 design.
Does the LTC2960HDC-4 provide hysteresis on both ADJ and IN– inputs?
Yes - the LTC2960HDC-4 provides built-in hysteresis on both inputs: 2.5% (≈10mV) on ADJ for RST generation and 5% (≈20mV) on IN– for OUT generation. This prevents output chatter during slow-moving or noisy supply transitions. The hysteresis values are specified over temperature and do not require external components, distinguishing the LTC2960HDC-4 from basic comparators needing discrete hysteresis networks.
LTC2960HDC-4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 8-WFDFN Exposed Pad
- 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:
- 8-DFN (2x2)
LTC2960HDC-4 FAQ
1.How can I place an order for LTC2960HDC-4 through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2960HDC-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 LTC2960HDC-4 reliable?
The price and inventory of LTC2960HDC-4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC2960HDC-4 is usually 5 days.
3.What payment methods are accepted for LTC2960HDC-4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2960HDC-4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2960HDC-4?
LTC2960HDC-4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2960HDC-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 LTC2960HDC-4?
For technical support, including LTC2960HDC-4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2960HDC-4 requirements.
6.How does Aetrix verify that LTC2960HDC-4 is sourced from the original manufacturer or authorized distributors?
All LTC2960HDC-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 LTC2960HDC-4 meets industry standards.
7.What is the process for return or replacement of LTC2960HDC-4?
All LTC2960HDC-4 units undergo pre-shipment inspection (PSI). If there is an issue with LTC2960HDC-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 LTC2960HDC-4 part is unused and in its original packaging.
Return procedure for LTC2960HDC-4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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