My Inquiry
My Account
Analog Devices Inc. LTC2966HSW#TRPBF
- Part No.:
- LTC2966HSW#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Supervisors
- Package:
- 20-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
LTC2966HSW#TRPBF.pdf
- Description:
- IC SUPERVISOR 2 CHANNEL 20SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,788
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LTC2966HSW#TRPBF from Analog Devices is a micropower dual-channel high-voltage voltage monitor IC designed for system-level power supervision in harsh environments. It monitors two independent input voltages (VINA/VINB) up to 100V with ±1.4% threshold accuracy over temperature, 7µA quiescent current, and 100V-rated open-drain outputs. It is used in automotive battery monitoring, telecom power shelves, and industrial 48V/24V DC distribution systems.
For engineers reviewing the LTC2966HSW#TRPBF datasheet, LTC2966HSW#TRPBF pinout, LTC2966HSW#TRPBF application, or LTC2966HSW#TRPBF equivalent, key selection criteria include its –40°C to 125°C operating range, selectable 5x/10x/20x/40x internal resistive divider scaling, built-in hysteresis configuration via INH/INL grounding, polarity inversion per channel via PSA/PSB, and guaranteed UVLO behavior below 3V.
Technical Context
The LTC2966HSW#TRPBF implements two independent comparator channels, each with programmable attenuation (5x–40x) via RS1/RS2 pins and polarity control via PSA/PSB. Thresholds are set by external reference-derived voltages applied to INHA/INLA and INHB/INLB, scaled internally to VIN pins.
Its architecture integrates a 2.402V buffered reference (±0.5% initial accuracy), high-impedance input dividers (70MΩ typical), and 100V-tolerant outputs with internal 500kΩ pull-up to an internally regulated 3.5–5V rail. UVLO activates when either VINA or VINB falls below 3V, forcing both outputs low regardless of polarity configuration.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Operating Voltage Range | 3.5V to 100V on VINA/VINB - supports direct monitoring of 48V, 24V, and 12V rails without external level-shifting. |
| Quiescent Current | 7µA max - enables multi-year battery life in portable and remote sensing applications. |
| Threshold Accuracy | ±1.4% over –40°C to 125°C - ensures reliable trip points across automotive and industrial thermal profiles. |
| Output Rating | 100V absolute max on OUTA/OUTB - allows direct connection to high-side supply rails up to 98V with external pull-up. |
| Internal Reference | 2.402V ±0.5% - provides stable bias for external resistor networks setting INH/INL thresholds. |
| Hysteresis Options | Built-in (14–30mV, range-scaled) or external - eliminates oscillation near threshold without adding discrete components. |
| Package | 20-Lead Plastic SO Wide (SW) - industry-standard footprint compatible with automated assembly and high-voltage creepage requirements. |
Pinout & Package
20-Lead Plastic Small Outline (Wide, 0.300 inch) package with exposed pad optional for thermal relief. Pin 1 marked; pin 10 is GND; pin 15 is GND (dual ground for noise isolation).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VINA | Channel A high-voltage monitor input | Connects to supply under test; internal 70MΩ divider scales voltage for comparator; priority source for internal rail generation. |
| VINB | Channel B high-voltage monitor input | Second independent high-voltage input; lower priority than VINA for internal supply but fully functional for monitoring. |
| OUTA / OUTB | Active-low, 100V-tolerant status outputs | Open-drain with internal 500kΩ pull-up to internal 3.5–5V rail; support external pull-up to ≤100V; polarity configurable via PSA/PSB. |
| INHA / INHB | Channel A/B high-threshold reference inputs | Accept 0.35–2.45V; multiplied by selected range (5x–40x) to set rising/falling trip points; grounding enables built-in hysteresis. |
| INLA / INLB | Channel A/B low-threshold reference inputs | Same voltage range as INH; defines falling edge threshold; grounding enables complementary hysteresis mode. |
| RS1A/RS2A / RS1B/RS2B | Channel A/B range select inputs | Binary-coded (LL=5x, HL=20x, LH=10x, HH=40x) - sets internal divider ratio to match monitored voltage span. |
| PSA / PSB | Channel A/B polarity select inputs | Ground = noninverting (OUT low on undervoltage); REF or >1.4V = inverting (OUT low on overvoltage). |
| REF | 2.402V buffered reference output | Stable, low-noise (140µVRMS) bias source for external resistor networks; can drive PSA/PSB/RS pins directly. |
| GND (Pins 10 & 15) | Device ground reference | Dual ground pins reduce ground bounce and improve noise immunity in high-dV/dt environments. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent high-voltage monitoring | Enables simultaneous supervision of primary and backup supplies (e.g., 48V main + 12V control rail) with no shared signal path. |
| Selectable 5x/10x/20x/40x internal scaling | Eliminates need for external high-voltage resistors - reduces board space, leakage error, and BOM count while maintaining accuracy. |
| Configurable built-in hysteresis | Reduces external component count by enabling hysteresis via single-pin grounding (INH or INL), with range-scaled values (110mV–880mV). |
| 100V-rated outputs with internal 500kΩ pull-up | Supports direct interface to microcontroller GPIOs or optocouplers without level shifters; internal pull-up avoids external resistor in low-power sleep modes. |
| –40°C to 125°C guaranteed operation | Validated for under-hood automotive, industrial motor drives, and telecom base station applications where ambient extremes occur. |
Applications
| Automotive Battery Supervision | Telecom Power Shelf Monitoring |
|---|---|
Use Scenario: Continuous monitoring of 12V starter battery and 48V mild-hybrid rail in ADAS ECUs. IC Role / Device Role / Timing Role: Dual-channel voltage supervisor detecting undervoltage (cranking) and overvoltage (alternator fault) events. Use Value: Prevents false resets during cold cranking (3.5V–12V range) and detects alternator overvoltage (>16V) before damage occurs. | Use Scenario: Real-time supervision of distributed 48V DC power in central office equipment. IC Role / Device Role / Timing Role: Independent monitoring of primary and redundant 48V feeds with fault latching via open-drain outputs. Use Value: Enables hot-swap controller coordination and automatic failover without MCU intervention. |
| Industrial 24V PLC I/O Modules | Portable Test Equipment Power Management |
Use Scenario: Input voltage validation in DIN-rail mounted programmable logic controllers. IC Role / Device Role / Timing Role: Undervoltage lockout and brownout detection on 24V field bus supply. Use Value: Guarantees clean reset assertion before logic corruption occurs, with ±1.4% accuracy across –40°C to 85°C operating range. | Use Scenario: Battery voltage tracking in handheld multimeters and oscilloscopes. IC Role / Device Role / Timing Role: Low-power dual-threshold monitor for Li-ion (3.0–4.2V) and alkaline (1.0–1.6V per cell) battery packs. Use Value: Extends runtime via 7µA quiescent current while providing precise end-of-discharge warning at 3.2V and full-charge flag at 4.1V. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel high-voltage monitoring applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LTC2965HSW#TRPBF | Single-channel version; identical 100V rating, 7µA IQ, and –40°C to 125°C grade but lacks second monitor channel. | Suitable only for single-rail systems; requires two devices for dual monitoring, increasing PCB area and cost. | Select when only one supply needs supervision and board space is constrained. |
| MAX6375HESA+ | Single-channel 100V supervisor with fixed 3.08V threshold; no adjustable range or dual-channel capability; 12µA IQ. | Designed for simple reset generation, not flexible threshold configuration; no INH/INL or RS pin programming. | Choose for cost-sensitive, fixed-threshold applications where design flexibility is not required. |
Compared with LTC2965HSW#TRPBF and MAX6375HESA+, the LTC2966HSW#TRPBF uniquely delivers dual independent high-voltage monitoring with programmable scaling and hysteresis in a single SW package - reducing component count and enabling coordinated fault detection across multiple rails.
Availability
LTC2966HSW#TRPBF is available at Aetrix Electronics and suitable for automotive battery management, telecom power shelf supervision, and industrial 24V PLC modules requiring stable component supply across extended temperature ranges.
Supply support for LTC2966HSW#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, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets.
The LTC2966HSW#TRPBF belongs to Analog Devices' precision voltage supervisor product line, engineered for robust, low-power, high-voltage monitoring in mission-critical power systems where reliability across extreme temperatures is mandatory.
FAQ
What is the maximum input voltage the LTC2966HSW#TRPBF can monitor?
The LTC2966HSW#TRPBF supports a wide monitoring range of 1.75V to 98V per channel, with absolute maximum input ratings of –0.3V to 140V on VINA and VINB. Its 100V operating limit makes it suitable for direct supervision of 48V, 24V, and 12V industrial and automotive rails without external attenuation.
How does the LTC2966HSW#TRPBF achieve ±1.4% threshold accuracy over temperature?
The LTC2966HSW#TRPBF achieves ±1.4% threshold accuracy over –40°C to 125°C through trimmed internal resistive dividers (±0.4% range error), a low-drift 2.402V reference (±0.5% initial, ±10ppm/°C), and comparator offset compensation (±3mV). These elements combine to maintain tight VIN trip-point tolerance across full automotive and industrial thermal profiles.
Can the LTC2966HSW#TRPBF monitor two different voltage rails simultaneously?
Yes, the LTC2966HSW#TRPBF independently monitors VINA and VINB with separate threshold configurations. Each channel has dedicated INHA/INLA, INHB/INLB, RS1/RS2, and PSA/PSB pins, allowing distinct scaling (e.g., 40x for 48V rail, 10x for 12V rail) and polarity settings - enabling true dual-rail supervision in a single IC.
What happens to the outputs of the LTC2966HSW#TRPBF during undervoltage lockout?
When either VINA or VINB falls below the 3V undervoltage lockout (UVLO) threshold minus hysteresis, both OUTA and OUTB are actively pulled low regardless of PSA/PSB polarity configuration or INH/INL states. This guarantees a known safe state for downstream logic during power failure.
Does the LTC2966HSW#TRPBF require external resistors to set voltage thresholds?
The LTC2966HSW#TRPBF does not require external high-voltage resistors - its internal 70MΩ dividers enable direct high-voltage connection. However, external low-voltage resistors (biased from REF) are needed on INHA/INLA and INHB/INLB to set precise thresholds; these resistors operate at ≤2.45V, simplifying accuracy and leakage management.
LTC2966HSW#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 20-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Monitor
- Number of Voltages Monitored:
- 2
- Voltage - Threshold:
- Adjustable/Selectable
- Output:
- Open Drain or Open Collector
- Reset:
- -
- Reset Timeout:
- -
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-SO
LTC2966HSW#TRPBF FAQ
1.How can I place an order for LTC2966HSW#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2966HSW#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 LTC2966HSW#TRPBF reliable?
The price and inventory of LTC2966HSW#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC2966HSW#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC2966HSW#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2966HSW#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2966HSW#TRPBF?
LTC2966HSW#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2966HSW#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 LTC2966HSW#TRPBF?
For technical support, including LTC2966HSW#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2966HSW#TRPBF requirements.
6.How does Aetrix verify that LTC2966HSW#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC2966HSW#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 LTC2966HSW#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC2966HSW#TRPBF?
All LTC2966HSW#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2966HSW#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 LTC2966HSW#TRPBF part is unused and in its original packaging.
Return procedure for LTC2966HSW#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LTC2966HSW#TRPBF Tags
-
MIC826SYMT-TR
Microchip Technology
-
APX803S-31SA-7
Diodes Incorporated
-
APX803L20-29SA-7
Diodes Incorporated
-
TPS3828-33DBVR
Texas Instruments
-
V6340RSP3B+
EM Microelectronic
-
EM6325CXSP5B-2.9+
EM Microelectronic
-
MCP120T-300I/TT
Microchip Technology
-
MCP130T-315I/TT
Microchip Technology
-
MCP120T-475I/TT
Microchip Technology
-
MCP111T-300E/TT
Microchip Technology
-
MCP120T-315I/TT
Microchip Technology
-
MCP809T-315I/TT
Microchip Technology
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
