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Analog Devices Inc. LT6703HVCS5-3#TRPBF
- Part No.:
- LT6703HVCS5-3#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Comparators
- Package:
- SOT-23-5 Thin, TSOT-23-5
- Datasheet:
-
LT6703HVCS5-3#TRPBF.pdf
- Description:
- IC COMPARATOR 1 GEN PUR TSOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:2,233
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Product details
Overview
LT6703HVCS5-3#TRPBF from Analog Devices (formerly Linear Technology) is a micropower, noninverting-input voltage monitor comparator with integrated 400mV reference, 6.5μA supply current at 5V, ±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 monitoring applications requiring stable low-power threshold detection.
For engineers reviewing the LT6703HVCS5-3#TRPBF datasheet, LT6703HVCS5-3#TRPBF pinout, LT6703HVCS5-3#TRPBF application, or LT6703HVCS5-3#TRPBF equivalent, this page delivers verified specifications, TSOT-23-5 package details, temperature-rated performance (0°C to 70°C), hysteresis behavior, and real-world design context for battery-powered systems, relay driving, and industrial control.
Technical Context
The LT6703HVCS5-3#TRPBF implements a single noninverting comparator with internal 400mV reference and fixed 6.5mV typical hysteresis. Its Over-The-Top® input allows operation with input voltages up to 36V independent of VS, while the open-collector output sinks ≥5mA and tolerates up to 36V on the load side.
It uses a rail-to-rail input stage referenced to GND, enabling ground-sensing capability and compatibility with sub-1.4V input signals when biased appropriately. The device is specified across 0°C to 70°C ambient and exhibits <±10nA max input bias current and 18μs high-to-low propagation delay under 10mV overdrive.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.4V to 18V - Enables direct operation from single-cell Li-ion (2.7–4.2V), 5V rails, or 12V automotive systems without regulation. |
| Rising Input Threshold | 395–405 mV (typ 400 mV) - Fixed internal reference enables precise undervoltage/overvoltage detection without external resistors. |
| Hysteresis | 3.5–9.5 mV (typ 6.5 mV) - Prevents chatter in noisy environments; eliminates need for external positive feedback network. |
| Quiescent Current | 6.5 μA (typ) at 5V - Supports >10-year battery life in coin-cell–powered IoT sensors and handheld instruments. |
| Input Voltage Range | –0.3V to 36V (vs GND) - Allows direct monitoring of high-side bus voltages or negative transients without level-shifting. |
| Output Sink Capability | ≥5 mA at VOL ≤200 mV - Drives LEDs, MOSFET gates, or optocouplers directly; supports 36V pull-up loads. |
| Operating Temperature | 0°C to 70°C - Qualified for commercial-grade embedded systems, test equipment, and consumer electronics. |
Pinout & Package
LT6703HVCS5-3#TRPBF is housed in a 5-lead plastic TSOT-23 (S5) package, 2.9mm × 1.6mm × 0.85mm, with exposed pad not connected internally. Pin 1 is marked by a dot; pin 5 is NC (no connection).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OUT (Pin 1) | Open-collector comparator output | Sinks ≥5mA; off-state voltage up to 36V; requires external pull-up for logic-high assertion. |
| GND (Pin 2) | Ground reference and reference low terminal | Return path for internal 400mV reference and output sink current; must be low-impedance. |
| +IN (Pin 3) | Noninverting input | Monitored signal applied here; output goes high when +IN exceeds 400mV reference. |
| NC (Pin 5) | No connection | Not bonded; electrically isolated; no routing or thermal tie required. |
| VS (Pin 4) | Positive supply input | Power source for internal circuitry; bypass capacitor (0.1μF) required between VS and GND. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 400mV reference | Eliminates external resistor divider and reference IC, reducing BOM count and layout area in voltage monitor designs. |
| Over-The-Top® input | Accepts inputs up to 36V below or above GND regardless of VS, enabling direct high-side sensing without attenuators. |
| Internal hysteresis | 6.5mV typical ensures noise immunity without external components-critical for relay drivers and industrial controls. |
| Low quiescent current | 6.5μA typ enables multi-year operation from CR2032 batteries in portable instrumentation and remote sensors. |
| 36V output tolerance | Allows interface to higher-voltage logic or loads (e.g., 24V PLC inputs) without level translators or isolation. |
Applications
| Battery-Powered System Monitoring | Industrial Control Systems |
|---|---|
|
Use Scenario: Monitoring lithium-ion cell voltage during discharge to trigger low-battery shutdown before deep discharge. IC Role / Device Role / Timing Role: Noninverting comparator compares cell voltage against 400mV reference scaled via resistor divider; asserts fault flag when threshold crossed. Use Value: Enables accurate 2.5V–3.0V cutoff with <±1.25% error, extending battery cycle life and preventing damage. |
Use Scenario: Detecting overvoltage on 24V DC power rail in programmable logic controller (PLC) backplane. IC Role / Device Role / Timing Role: Monitors rail via resistive divider; drives optocoupler input to isolate fault signal to microcontroller. Use Value: 36V-tolerant input and output allow direct interface to 24V system without level shifters; 6.5μA draw minimizes standby loss. |
| Automotive Monitor and Controls | Handheld Instruments |
|
Use Scenario: Supervising 12V vehicle battery voltage during cold-cranking to prevent false resets in infotainment modules. IC Role / Device Role / Timing Role: Compares scaled battery voltage to 400mV reference; triggers reset hold-off using hysteresis to reject cranking dips. Use Value: 0°C to 70°C rating covers cabin environment; 6.5mV hysteresis rejects transient sags below 9V without false triggering. |
Use Scenario: Enabling auto-power-down in digital multimeter when input voltage falls below measurement range. IC Role / Device Role / Timing Role: Senses front-panel input jack voltage; asserts sleep signal to MCU when no probe is connected. Use Value: Micropower operation extends alkaline battery life beyond 200 hours; TSOT-23-5 footprint saves PCB space in compact enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage monitor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LT6703HVCS5-2#TRPBF | Inverting input configuration; identical supply range, reference, hysteresis, and 36V I/O ratings. | Requires signal inversion in threshold logic; suitable when monitored signal must drive –IN for active-low alert. | Select when system architecture demands inverted output polarity or existing schematic uses –IN topology. |
| TLV7031DRYR | Lower supply current (350nA), no internal reference, 1.6V min supply, 5.5V max VIO, SOT-553 package. | Lacks integrated reference; requires external resistor divider and precision reference for same function. | Choose only if ultra-low power dominates and external reference already exists; not drop-in compatible. |
Compared with LT6703HVCS5-2#TRPBF, the LT6703HVCS5-3#TRPBF provides noninverting response essential for direct high-side monitoring; versus TLV7031DRYR, it delivers full self-contained functionality at higher current but eliminates reference design complexity and layout overhead.
Availability
LT6703HVCS5-3#TRPBF is available at Aetrix Electronics and suitable for battery-powered system monitoring, industrial control systems, and automotive monitor and controls requiring stable component supply, long-term lifecycle support, and guaranteed commercial-temperature performance.
Supply support for LT6703HVCS5-3#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 acquired Linear Technology in 2017 and maintains its precision analog product lines, including high-reliability comparators and references for industrial and automotive markets.
The LT6703HV series belongs to Linear's micropower voltage monitor family, designed specifically for low-power, high-voltage-tolerant threshold detection in space-constrained and battery-sensitive applications.
FAQ
What is the input polarity configuration of the LT6703HVCS5-3#TRPBF?
The LT6703HVCS5-3#TRPBF features a noninverting input (+IN on Pin 3). When the voltage at +IN rises above the internal 400mV reference, the open-collector output transitions from high-impedance to low. This configuration simplifies high-side monitoring where the monitored signal connects directly to +IN without inversion logic.
Can the LT6703HVCS5-3#TRPBF monitor voltages above its supply voltage?
Yes. The LT6703HVCS5-3#TRPBF supports Over-The-Top® operation: its +IN pin accepts voltages from –0.3V to 36V relative to GND, independent of the 1.4V–18V VS supply. This enables direct monitoring of 24V or 36V rails even when powered from 3.3V or 5V, provided appropriate input scaling or clamping is used per Absolute Maximum Ratings.
What is the guaranteed hysteresis range for the LT6703HVCS5-3#TRPBF over temperature?
The LT6703HVCS5-3#TRPBF guarantees hysteresis from 3.5mV to 9.5mV across its 0°C to 70°C operating range, with 6.5mV typical at 25°C. This built-in hysteresis eliminates external feedback components and ensures stable switching in noisy environments such as motor drives or relay coils.
Does the LT6703HVCS5-3#TRPBF require an external reference or resistor divider?
No. The LT6703HVCS5-3#TRPBF integrates a precision 400mV reference and requires no external reference. A resistor divider is only needed if monitoring voltages >400mV (e.g., 12V rail → 400mV via 30:1 ratio); the device itself provides the reference and comparison function in one TSOT-23-5 package.
What is the maximum output sink current and corresponding VOL for the LT6703HVCS5-3#TRPBF?
The LT6703HVCS5-3#TRPBF guarantees ≥5mA sink current with VOL ≤200mV at VS = 5V and 10mV input overdrive. At 5mA load, typical VOL is 70mV, enabling direct drive of LEDs, small relays, or logic inputs without additional buffering.
LT6703HVCS5-3#TRPBF 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:
- General Purpose
- 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):
- 14µA
- Current - Quiescent (Max):
- -
- CMRR, PSRR (Typ):
- 29µs
- Propagation Delay (Max):
- 11mV
- Hysteresis:
- 0°C ~ 70°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- TSOT-23-5
LT6703HVCS5-3#TRPBF FAQ
1.How can I place an order for LT6703HVCS5-3#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT6703HVCS5-3#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 LT6703HVCS5-3#TRPBF reliable?
The price and inventory of LT6703HVCS5-3#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT6703HVCS5-3#TRPBF is usually 5 days.
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We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT6703HVCS5-3#TRPBF transactions.
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LT6703HVCS5-3#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT6703HVCS5-3#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 LT6703HVCS5-3#TRPBF?
For technical support, including LT6703HVCS5-3#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT6703HVCS5-3#TRPBF requirements.
6.How does Aetrix verify that LT6703HVCS5-3#TRPBF is sourced from the original manufacturer or authorized distributors?
All LT6703HVCS5-3#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 LT6703HVCS5-3#TRPBF meets industry standards.
7.What is the process for return or replacement of LT6703HVCS5-3#TRPBF?
All LT6703HVCS5-3#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LT6703HVCS5-3#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 LT6703HVCS5-3#TRPBF part is unused and in its original packaging.
Return procedure for LT6703HVCS5-3#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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