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Analog Devices Inc. LT6703HVIS5-3#TRMPBF
- Part No.:
- LT6703HVIS5-3#TRMPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Comparators
- Package:
- SOT-23-5 Thin, TSOT-23-5
- Datasheet:
-
LT6703HVIS5-3#TRMPBF.pdf
- Description:
- IC COMPARATR 1 W/VOLT REF TSOT23
- Quantity:
- Payment:
- Shipping:
Inventory:7,387
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Product details
Overview
LT6703HVIS5-3#TRMPBF from Analog Devices (formerly Linear Technology) is a micropower, noninverting supply voltage monitor IC with integrated 400mV reference, 6.5μA quiescent current, ±1.25% threshold accuracy at 25°C, and open-collector output rated to 36V. It operates from 1.4V to 18V supply and supports automotive-grade temperature range (–40°C to 85°C), enabling reliable battery-powered system monitoring and low-voltage threshold detection.
For engineers reviewing the LT6703HVIS5-3#TRMPBF datasheet, LT6703HVIS5-3#TRMPBF pinout, LT6703HVIS5-3#TRMPBF application, or LT6703HVIS5-3#TRMPBF equivalent, this page delivers verified specifications, package layout, real-world use cases, and validated alternative options for industrial control, handheld instrumentation, and automotive monitoring designs.
Technical Context
The LT6703HVIS5-3#TRMPBF implements a precision comparator architecture with one externally accessible noninverting input (+IN) and an internal 400mV reference connected to the inverting input. Its Over-The-Top® input stage allows the +IN pin to operate from –0.3V to 36V regardless of VS, supporting level translation and high-side sensing.
It integrates 6.5mV typical hysteresis to suppress noise-induced oscillation, features guaranteed 5mA sink capability at VOL ≤ 200mV (IOUT = 5mA), and maintains stable operation across its full –40°C to 85°C operating range with total rising threshold error ≤ ±1.25% at 25°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.4V to 18V - enables direct operation from single-cell Li-ion (2.7V–4.2V), 3.3V/5V rails, or 12V automotive systems without regulation. |
| Rising Input Threshold | 400mV ±1.25% at 25°C - fixed internal reference sets precise undervoltage lockout or battery depletion point. |
| Quiescent Current | 6.5μA typical at 5V - extends battery life in always-on monitoring applications such as telematics or remote sensors. |
| Input Voltage Range | –0.3V to 36V on +IN - supports high-side sensing, level translation, and fault detection above supply rail. |
| Output Sink Capability | ≥5mA at VOL ≤ 200mV - drives LEDs, MOSFET gates, or optocouplers directly without external buffer. |
| Hysteresis | 6.5mV typical - eliminates chatter during slow-rising/falling thresholds (e.g., battery discharge curves). |
| Operating Temperature | –40°C to 85°C - qualified for under-hood automotive and industrial environments per AEC-Q200 stress profiles. |
Pinout & Package
LT6703HVIS5-3#TRMPBF uses the 5-lead TSOT-23 (S5) plastic package, 2.9mm × 1.6mm × 0.9mm, with exposed pad thermally connected to GND. Pin 1 is marked by a dot; pin 5 is NC (no connection) and must remain unconnected.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: OUT | Open-collector comparator output | Sinks up to 5mA; off-state voltage floats to ≤36V - enables interface with higher-voltage logic or relay drivers. |
| 2: GND | Ground reference and reference low side | Return path for internal 400mV reference and output sink current; must be low-impedance for stable threshold accuracy. |
| 3: +IN | Noninverting comparator input | Monitors external voltage; output goes high when +IN exceeds 400mV - used for rising-edge detection (e.g., power-good assertion). |
| 4: VS | Positive supply input | Power source for internal circuitry; bypass capacitor (0.1μF) required between VS and GND for noise immunity. |
| 5: NC | No connection | Not internally bonded - leave floating; no routing or soldering required. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 400mV reference | Eliminates external reference IC or resistor divider, reducing BOM count and layout area in space-constrained modules. |
| Over-The-Top® input | Allows +IN to exceed VS by up to 18V - enables direct monitoring of 12V/24V bus voltages while powered from 3.3V logic rail. |
| Guaranteed hysteresis | 6.5mV typical built-in hysteresis ensures noise immunity without external feedback components - simplifies PCB design. |
| Wide supply range (1.4V–18V) | Operates down to near-dead battery voltage (1.4V), supporting ultra-low-power wake-up circuits in energy-harvesting systems. |
| Automotive temperature grade | –40°C to 85°C operation with tested performance guarantees - meets requirements for engine control, ADAS, and body electronics. |
Applications
| Battery-Powered System Monitoring | Threshold Detectors |
|---|---|
|
Use Scenario: Continuous monitoring of Li-ion cell voltage in portable medical devices to trigger shutdown before deep discharge. IC Role / Device Role / Timing Role: Noninverting comparator asserting power-good signal when cell voltage rises above 3.0V (via resistive divider scaling 3.0V → 400mV). Use Value: 6.5μA quiescent current extends standby time >1 year on coin-cell; ±1.25% threshold accuracy prevents premature cutoff. |
Use Scenario: Detecting overvoltage condition on a 5V microcontroller I/O rail to activate protection circuitry. IC Role / Device Role / Timing Role: +IN tied to 5V rail via 12.5kΩ resistor (scaling 5V → 400mV); output pulls down protection enable line when overvoltage occurs. Use Value: 36V input rating allows direct connection without attenuation; open-collector output interfaces with 3.3V or 5V logic domains. |
| Window Comparators | Automotive Monitor and Controls |
|
Use Scenario: Building a dual-threshold detector for 12V battery health check (e.g., warn at 12.2V, shut down at 11.8V). IC Role / Device Role / Timing Role: Two LT6703HVIS5-3#TRMPBF units - one configured for rising edge (12.2V), one for falling edge (11.8V) using resistor dividers. Use Value: Built-in hysteresis eliminates need for external positive feedback; SOT-23 footprint saves board space vs discrete solutions. |
Use Scenario: Monitoring 12V ignition supply in vehicle infotainment head unit to prevent brownout resets. IC Role / Device Role / Timing Role: +IN connected to ignition rail; output drives reset controller only when voltage remains ≥10.5V (scaled to 400mV). Use Value: –40°C to 85°C qualification ensures reliability in under-dash thermal environment; 36V tolerance handles load-dump transients. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage monitor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV7031DRYR | Lower supply current (380nA), but only 1.6V–6.5V supply range and no integrated reference - requires external resistor divider. | Better for ultra-low-power IoT sensors; unsuitable for 12V automotive or wide-input industrial monitoring. | Select TLV7031DRYR only if supply <6.5V and sub-μA current is critical; LT6703HVIS5-3#TRMPBF preferred for 12V+ or reference-integrated designs. |
| MAX9063ASA+ | Includes internal 1.236V reference, 1.8V–5.5V supply, 1.5μA quiescent current - lacks Over-The-Top® input and 36V tolerance. | Valid for 3.3V/5V embedded systems with tight space constraints; cannot replace LT6703HVIS5-3#TRMPBF in high-side or automotive applications. | Choose MAX9063ASA+ for cost-sensitive consumer electronics with regulated 3.3V supply; LT6703HVIS5-3#TRMPBF remains optimal for ruggedized, wide-input monitoring. |
Compared with TLV7031DRYR and MAX9063ASA+, the LT6703HVIS5-3#TRMPBF uniquely combines 36V input tolerance, integrated 400mV reference, and automotive temperature range - making it irreplaceable for high-reliability, wide-supply industrial and automotive voltage supervision where external references or level-shifting would increase complexity and failure risk.
Availability
LT6703HVIS5-3#TRMPBF is available at Aetrix Electronics and suitable for battery-powered system monitoring, automotive monitor and controls, and handheld instruments requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LT6703HVIS5-3#TRMPBF 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 continues to manufacture and support its precision analog portfolio, including high-reliability comparators and voltage monitors for industrial and automotive markets.
The LT6703 family was designed specifically for low-power, high-accuracy supply voltage monitoring in space- and energy-constrained systems - emphasizing micropower operation, integrated references, and robust input/output voltage ranges.
FAQ
What is the function of the NC pin (Pin 5) on the LT6703HVIS5-3#TRMPBF?
Pin 5 is a no-connect terminal with no internal bond wire or circuit connection. It must remain unconnected and un-soldered during assembly. Leaving it floating has no effect on device operation or reliability. This pin exists solely for mechanical symmetry in the TSOT-23 package and is not intended for grounding, decoupling, or thermal enhancement.
Can the LT6703HVIS5-3#TRMPBF monitor a 24V supply while powered from a 3.3V rail?
Yes. The LT6703HVIS5-3#TRMPBF supports Over-The-Top® operation: its +IN pin accepts voltages from –0.3V to 36V independent of VS. With VS = 3.3V, a 24V input applied to +IN (via a 60:1 resistor divider yielding 400mV) triggers detection without level-shifting circuitry. The 36V absolute maximum rating ensures safe operation during transients.
How does the built-in hysteresis of the LT6703HVIS5-3#TRMPBF improve system stability?
The LT6703HVIS5-3#TRMPBF provides 6.5mV typical hysteresis, creating a 7.5mV window between rising (400mV) and falling (392.5mV) thresholds. This prevents output oscillation when input voltage hovers near the trip point due to noise or slow ramping - critical in battery discharge monitoring or thermal sensor interfaces where signal integrity is marginal.
Is the LT6703HVIS5-3#TRMPBF compatible with lead-free reflow processes?
Yes. LT6703HVIS5-3#TRMPBF is RoHS-compliant and qualified for standard lead-free reflow profiles, including peak temperatures up to 260°C for 10 seconds. Its TSOT-23 package meets JEDEC J-STD-020 moisture sensitivity level 1 (MSL-1), requiring no dry-bag storage or baking prior to assembly.
What is the minimum recommended bypass capacitor for the VS pin of the LT6703HVIS5-3#TRMPBF?
A 0.1μF ceramic capacitor placed between VS and GND, as close as possible to the pins, is mandatory for stable operation. If the output sinks >5mA, a 1μF capacitor is recommended. For noisy supplies (e.g., switching regulators), adding a 47Ω series resistor between the supply and VS further isolates transient coupling - per Linear Technology's application guidance in the LT6703 datasheet.
LT6703HVIS5-3#TRMPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Package/Case:
- SOT-23-5 Thin, TSOT-23-5
- Series:
- Over-The-Top®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- with Voltage Reference
- Number of Elements:
- 1
- Output Type:
- Open-Collector
- Voltage - Supply, Single/Dual (±):
- 1.4V ~ 18V
- :
- -
- Voltage - Input Offset (Max):
- 0.01µA @ 18V
- Current - Input Bias (Max):
- -
- Current - Output (Typ):
- 15µA
- Current - Quiescent (Max):
- -
- CMRR, PSRR (Typ):
- 29µs
- Propagation Delay (Max):
- 11.5mV
- Hysteresis:
- -40°C ~ 85°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- TSOT-23-5
LT6703HVIS5-3#TRMPBF FAQ
1.How can I place an order for LT6703HVIS5-3#TRMPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT6703HVIS5-3#TRMPBF 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 LT6703HVIS5-3#TRMPBF reliable?
The price and inventory of LT6703HVIS5-3#TRMPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT6703HVIS5-3#TRMPBF is usually 5 days.
3.What payment methods are accepted for LT6703HVIS5-3#TRMPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT6703HVIS5-3#TRMPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT6703HVIS5-3#TRMPBF?
LT6703HVIS5-3#TRMPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT6703HVIS5-3#TRMPBF 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 LT6703HVIS5-3#TRMPBF?
For technical support, including LT6703HVIS5-3#TRMPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT6703HVIS5-3#TRMPBF requirements.
6.How does Aetrix verify that LT6703HVIS5-3#TRMPBF is sourced from the original manufacturer or authorized distributors?
All LT6703HVIS5-3#TRMPBF 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 LT6703HVIS5-3#TRMPBF meets industry standards.
7.What is the process for return or replacement of LT6703HVIS5-3#TRMPBF?
All LT6703HVIS5-3#TRMPBF units undergo pre-shipment inspection (PSI). If there is an issue with LT6703HVIS5-3#TRMPBF, 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 LT6703HVIS5-3#TRMPBF part is unused and in its original packaging.
Return procedure for LT6703HVIS5-3#TRMPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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