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Analog Devices Inc. LTC2960CDC-4
- Part No.:
- LTC2960CDC-4
- Manufacturer:
- Analog Devices Inc.
- Category:
- Supervisors
- Package:
- 8-WFDFN Exposed Pad
- Datasheet:
-
LTC2960CDC-4.pdf
- Description:
- IC SUPERVISOR 2 CHANNEL 8DFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,915
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Product details
Overview
LTC2960CDC-4 from Analog Devices (formerly Linear Technology) is a nano-power, high-voltage two-input voltage supervisor IC designed for battery monitoring and system reset control in multicell Li-ion, automotive, and industrial power systems. It features ADJ/IN– dual-threshold monitoring, 200ms fixed reset timeout, active pull-up RST/OUT outputs referenced to DVCC, 850nA quiescent current at 36V, and operation across 2.5V–36V VCC with –40°C to 125°C extended temperature range.
For engineers reviewing the LTC2960CDC-4 datasheet, LTC2960CDC-4 pinout, LTC2960CDC-4 application, or LTC2960CDC-4 equivalent, this page delivers verified technical context, package-specific pin functions, real-world use cases in battery disconnect and regulator UVLO, and validated alternative options - all grounded in official Linear Technology documentation and electrical specifications.
Technical Context
The LTC2960CDC-4 implements two independent comparators: one on the ADJ input (reset threshold) with 2.5% hysteresis and 200ms timeout delay, and a second on the IN– input (inverting configuration) for overvoltage detection. Its RST and OUT outputs are actively driven to DVCC (1.6V–5.5V), eliminating external pull-up resistors and reducing static power dissipation.
It operates with ultra-low supply current (≤850nA over full temperature range), supports manual reset via MR input with 20µs minimum pulse width, and maintains guaranteed output low state down to VCC = 1.2V. The device uses internal 400mV reference with ±2mV threshold matching between ADJ and IN– inputs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 2.5V to 36V - enables direct monitoring of 8-cell Li-ion stacks or 24V industrial rails without external regulators. |
| Quiescent Current | 850nA max (–40°C to 125°C) - extends battery life in always-on security or remote sensor applications. |
| Reset Threshold Accuracy | ±1.5% over temperature - ensures reliable brown-out detection without calibration in automotive environments. |
| IN– Comparator Type | Inverting input - triggers OUT low when monitored voltage rises above threshold, enabling overvoltage fault signaling. |
| Reset Timeout | Fixed 200ms - provides sufficient time for microcontroller initialization after power recovery or manual reset release. |
| DVCC Output Drive | Active pull-up to DVCC (1.6V–5.5V) - allows logic-level compatibility with 1.8V/3.3V/5V MCUs without external level-shifting components. |
| Operating Temp Range | –40°C to 125°C (H-grade variant available) - qualified for under-hood automotive and industrial embedded use. |
Pinout & Package
Package: 8-lead (2mm × 2mm) plastic DFN (DC8), exposed pad (Pin 9) optional GND connection. RoHS-compliant, lead-free finish.
| 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 (rising). |
| DVCC | Logic supply reference | Sets RST/OUT high-level voltage (1.6V–5.5V); grounding enables open-drain mode. |
| RST | Reset output | Active-pull-up to DVCC; asserts low when ADJ falls below threshold; released after 200ms timeout + hysteresis. |
| OUT | Spare comparator output | Active-pull-up to DVCC; asserts low when IN– rises above threshold - used for OV detection or NMI signaling. |
| IN– | Inverting threshold input | Configured via external resistor divider; monitors rising voltage conditions (e.g., battery overcharge). |
| ADJ | Reset threshold adjustment input | Configured via external resistor divider; sets primary falling-voltage reset point (e.g., low-battery cutoff). |
| MR | Manual reset input | Logic-low active; forces RST low for 200ms after release - supports push-button or MCU-controlled reset initiation. |
| GND | Device ground reference | Common return path for VCC, DVCC, and all analog/digital signals; exposed pad may be connected here. |
Key Features
| Feature | Design Value |
|---|---|
| Nano-current operation | 850nA max ICC enables >10-year battery life in coin-cell-powered IoT sensors and security systems. |
| IN– overvoltage detection | Enables single-chip dual-fault monitoring: ADJ for undervoltage (brown-out), IN– for overvoltage (cell imbalance). |
| DVCC-referenced outputs | Eliminates need for external pull-up resistors and associated standby power loss in 3.3V/5V MCU interfaces. |
| 200ms fixed timeout | Guarantees stable reset assertion during supply transients without requiring RT pin routing or configuration. |
| –40°C to 125°C operation | Validated performance across full automotive under-hood and industrial ambient ranges without derating. |
Applications
| Li-ion Battery Pack Protection | Automotive Power Rail Supervisor |
|---|---|
|
Use Scenario: Monitoring 6–8 series Li-ion cells (24–33.6V) to prevent deep discharge and overcharge. IC Role / Device Role / Timing Role: LTC2960CDC-4 acts as dual-threshold supervisor: ADJ triggers low-battery cutoff (~2.75V/cell), IN– detects overvoltage (>4.25V/cell). Use Value: Enables single-IC protection without external op-amps or ADCs; 850nA quiescent current avoids parasitic drain during storage. |
Use Scenario: Supervising 12V/24V vehicle battery rail for cold-crank, load-dump, and ignition sequencing. IC Role / Device Role / Timing Role: LTC2960CDC-4 provides reset to ECU microcontroller (RST) and overvoltage warning (OUT) during alternator surge events. Use Value: 36V VCC rating and 125°C operation ensure reliability during engine-off hot soak and cranking dips. |
| Industrial DC/DC Converter UVLO | Portable Medical Device Power Management |
|
Use Scenario: Enabling/disabling buck converter EN pin based on input rail stability (e.g., 24V industrial bus). IC Role / Device Role / Timing Role: LTC2960CDC-4 OUT drives converter enable with precise 6.41V falling threshold and 200ms holdoff. Use Value: Fixed 200ms timeout prevents false turn-on during brief line sags; active pull-up ensures fast EN rise time. |
Use Scenario: Providing controlled shutdown and reset in handheld diagnostic tools powered by single Li-Po cell. IC Role / Device Role / Timing Role: LTC2960CDC-4 RST resets MCU at 3.0V; OUT signals NMI at 3.2V to initiate data save before shutdown. Use Value: Dual thresholds allow graceful degradation: early warning (OUT) followed by hard reset (RST) - preserving patient data integrity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage supervisor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6326–33D3+ | Single-threshold, 3.3V fixed reset; 1.6µA ICC; no IN– comparator; open-drain only | Limited to basic 3.3V system reset; cannot replace dual-threshold or high-VCC monitoring | Select only if application requires fixed 3.3V reset and <10µA ICC is acceptable |
| TPS3808G33DBVR | Single-threshold, 3.3V fixed; 1.1µA ICC; adjustable timeout (200ms default); open-drain | No secondary comparator; lacks IN– functionality; VCC max = 6.8V - unsuitable for >6V rails | Use only for low-voltage (≤6.8V), single-threshold supervision where cost is prioritized over feature set |
Compared with LTC2960CDC-4, MAX6326–33D3+ and TPS3808G33DBVR lack dual-threshold capability, high-voltage operation, and active pull-up outputs - making them functionally incomplete replacements for multicell battery or automotive 12V/24V supervision.
Availability
LTC2960CDC-4 is available at Aetrix Electronics and suitable for battery-powered equipment, automotive systems, and portable medical devices requiring stable component supply with guaranteed long-term availability and traceable sourcing.
Supply support for LTC2960CDC-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 full product support, datasheets, and application engineering for the LTC portfolio. Linear's legacy focus on precision analog and power management remains core to the brand.
The LTC2960 family was designed specifically for ultra-low-power, high-voltage system supervision in battery-backed and automotive applications - emphasizing nanoscale current consumption, wide input range, and dual-comparator flexibility.
FAQ
What is the exact reset timeout period for LTC2960CDC-4?
The LTC2960CDC-4 has a fixed reset timeout period of 200ms, as confirmed in the Option Table and Electrical Characteristics section of the datasheet. This value applies after the ADJ input rises above threshold or after MR is released, and it is not configurable - unlike the LTC2960-1/-2 variants which use the RT pin for selection. The 200ms timing is specified across –40°C to 125°C with ±40ms tolerance.
Does LTC2960CDC-4 support both undervoltage and overvoltage detection?
Yes, LTC2960CDC-4 supports dual-mode detection: the ADJ input provides undervoltage (falling-threshold) reset, while the IN– input provides overvoltage (rising-threshold) detection. This is explicitly defined in the Option Table (LTC2960-4 = ADJ/IN–) and Pin Functions section. The OUT output asserts low when IN– exceeds its threshold, enabling simultaneous low-battery and overcharge monitoring in a single IC.
Can LTC2960CDC-4 drive 3.3V logic directly without external components?
Yes, LTC2960CDC-4 can drive 3.3V logic directly using its DVCC-referenced active pull-up outputs. When DVCC is connected to 3.3V, both RST and OUT switch between GND and 3.3V with VOH ≥ 0.7•DVCC (≥2.31V) and VOL ≤ 100mV at 500µA sink - meeting standard 3.3V CMOS input thresholds. No pull-up resistors are required, reducing BOM count and standby power.
What is the maximum input voltage allowed on the ADJ, IN+, or IN– pins of LTC2960CDC-4?
The absolute maximum rating for ADJ, IN+, and IN– pins is –0.3V to 3.5V, as stated in the Absolute Maximum Ratings table. This limit is independent of VCC and must be respected even when monitoring high-voltage rails - requiring external resistor dividers to scale input voltages (e.g., 24V → 0.4V). Exceeding 3.5V risks permanent damage, regardless of VCC level or duration.
Is LTC2960CDC-4 pin-compatible with other variants like LTC2960CDC-1?
No, LTC2960CDC-4 is not pin-compatible with LTC2960CDC-1. While both share the same 8-pin DFN package and physical pinout, the RT pin on LTC2960CDC-1 is replaced by DVCC on LTC2960CDC-4 - meaning Pin 2 (RT/DVCC) serves different functions. Interchanging them without board revision will cause incorrect reset timing or output logic behavior. The datasheet explicitly assigns distinct pin roles per variant in the Pin Configuration and Pin Functions sections.
LTC2960CDC-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:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-DFN (2x2)
LTC2960CDC-4 FAQ
1.How can I place an order for LTC2960CDC-4 through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2960CDC-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 LTC2960CDC-4 reliable?
The price and inventory of LTC2960CDC-4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC2960CDC-4 is usually 5 days.
3.What payment methods are accepted for LTC2960CDC-4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2960CDC-4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2960CDC-4?
LTC2960CDC-4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2960CDC-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 LTC2960CDC-4?
For technical support, including LTC2960CDC-4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2960CDC-4 requirements.
6.How does Aetrix verify that LTC2960CDC-4 is sourced from the original manufacturer or authorized distributors?
All LTC2960CDC-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 LTC2960CDC-4 meets industry standards.
7.What is the process for return or replacement of LTC2960CDC-4?
All LTC2960CDC-4 units undergo pre-shipment inspection (PSI). If there is an issue with LTC2960CDC-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 LTC2960CDC-4 part is unused and in its original packaging.
Return procedure for LTC2960CDC-4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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