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Analog Devices Inc. LT6703HVIS5-2#TRPBF
- Part No.:
- LT6703HVIS5-2#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Comparators
- Package:
- SOT-23-5 Thin, TSOT-23-5
- Datasheet:
-
LT6703HVIS5-2#TRPBF.pdf
- Description:
- IC COMPARATOR 1 GEN PUR TSOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:2,299
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Product details
Overview
LT6703HVIS5-2#TRPBF from Analog Devices (acquired Linear Technology) is an inverting-input micropower supply voltage monitor IC with integrated 400mV reference, 6.5μA quiescent current at 5V, ±1.25% threshold accuracy at 25°C, and open-collector output rated for 36V off-state voltage. It operates from 1.4V to 18V supply and supports automotive-grade monitoring in battery-powered systems.
For engineers reviewing the LT6703HVIS5-2#TRPBF datasheet, LT6703HVIS5-2#TRPBF pinout, LT6703HVIS5-2#TRPBF application, or LT6703HVIS5-2#TRPBF equivalent, key selection criteria include its inverting input polarity, –40°C to 85°C industrial temperature range, 5-lead TSOT-23 package, built-in 6.5mV hysteresis, and Over-The-Top® input capability extending to 36V independent of VS.
Technical Context
The LT6703HVIS5-2#TRPBF implements a single comparator with one externally accessible inverting input (–IN), while the noninverting input is internally tied to a precision 400mV bandgap reference. Its Over-The-Top® architecture enables input voltages up to 36V regardless of supply voltage (VS = 1.4V–18V).
Hysteresis is fixed at 6.5mV (typ), ensuring noise immunity without external feedback. The open-collector output sinks ≥5mA and supports level translation - output load may be referenced to any voltage ≤36V, decoupled from VS.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.4V to 18V - enables direct monitoring of Li-ion, 3.3V, 5V, 12V, and 15V rails without external regulators. |
| Rising Input Threshold | 392mV to 408mV (–40°C to 85°C) - defines precise 400mV trip point for low-voltage brownout detection. |
| Hysteresis | 2mV to 11.5mV (–40°C to 85°C) - prevents chatter during slow-rising/falling supply transitions. |
| Quiescent Current | 15μA max (–40°C to 85°C) - ensures multi-year battery life in always-on monitoring applications. |
| Input Voltage Range | –0.3V to 36V relative to GND - supports Over-The-Top® sensing above VS and below ground. |
| Output Sink Current | ≥5mA guaranteed - drives LEDs, MOSFET gates, or optocouplers directly without buffer stages. |
| Reference Accuracy | ±1.25% max at 25°C - eliminates need for external precision reference in cost-sensitive designs. |
Pinout & Package
LT6703HVIS5-2#TRPBF uses a 5-lead Plastic TSOT-23 (S5) package, 2.9mm × 1.6mm × 0.9mm, with exposed pad thermally connected to GND. Pin 1 is marked by a dot; exposed pad must be soldered to PCB for thermal and electrical integrity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OUT (Pin 1) | Open-collector comparator output | Sinks current when input falls below threshold; supports 36V pull-up for high-side switching or level translation. |
| GND (Pin 2) | Ground reference and reference low-side | Return path for internal 400mV reference and output sink current; exposed pad connects here. |
| –IN (Pin 3) | Inverting comparator input | Monitors falling voltage - output goes low when –IN drops below 400mV reference. |
| NC (Pin 5) | No connect | Unbonded die pad; must be left floating or grounded per layout best practice (no functional role). |
| VS (Pin 4) | Positive supply input | Powers internal circuitry; bypass capacitor (≥0.1μF) required between VS and GND. |
Key Features
| Feature | Design Value |
|---|---|
| Inverting input configuration | Enables direct low-side supply rail monitoring - e.g., detect battery discharge below 3.3V by connecting –IN to battery cathode side. |
| Over-The-Top® input range | Accepts inputs up to 36V regardless of VS, allowing direct connection to 24V/36V industrial buses without attenuation. |
| Integrated 400mV reference | Eliminates external reference IC or resistor divider, reducing BOM count and layout area in space-constrained handheld instruments. |
| 6.5μA typical supply current | Supports >10-year operation on CR2032 coin cell in wake-on-brownout architectures. |
| Guaranteed 5mA output sink | Drives standard logic-level MOSFETs (e.g., Si2302) or optocouplers (e.g., PC817) without external driver transistors. |
Applications
| Battery-Powered System Monitoring | Industrial Control Systems |
|---|---|
Use Scenario: Monitoring Li-ion battery voltage during deep discharge to trigger safe shutdown before cell damage. IC Role / Device Role / Timing Role: Inverting comparator detecting falling battery voltage crossing 3.0V threshold via resistive divider. Use Value: Built-in 400mV reference and 6.5mV hysteresis eliminate external components and prevent false triggers from ripple. |
Use Scenario: Supervising 24V DC power rail in PLC I/O modules to detect undervoltage faults. IC Role / Device Role / Timing Role: Over-The-Top® input monitors 24V rail directly while powered from local 5V supply. Use Value: 36V input rating avoids voltage dividers; 15μA quiescent current minimizes standby power overhead. |
| Automotive Monitor and Controls | Handheld Instruments |
Use Scenario: Detecting ignition-off battery drain exceeding 50mA in vehicle infotainment head units. IC Role / Device Role / Timing Role: –IN connected to shunt resistor output; triggers alarm when voltage drop exceeds 400mV. Use Value: –40°C to 85°C operating range meets automotive ambient requirements; 1.4V min supply supports start-stop operation. |
Use Scenario: Enabling auto-power-off in portable multimeters when main supply drops below 2.8V. IC Role / Device Role / Timing Role: Direct connection of –IN to 3.3V LDO output; open-collector output controls PMOS high-side switch. Use Value: 5-lead TSOT-23 footprint saves board space; no external reference reduces component count in compact enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar supply voltage monitor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LT6703HVIS5-3#TRPBF | Noninverting input; identical specs otherwise (same package, temp range, reference, hysteresis). | Requires high-side sensing topology - input connected to monitored rail instead of ground-referenced divider. | Select when monitoring rising voltage (e.g., power-good assertion) or when circuit topology favors noninverting configuration. |
| TLV7032IDR | Lower supply current (380nA), but only 1.6V–6.5V supply range; no integrated reference; requires external 400mV source. | Limited to low-voltage systems (e.g., 3.3V IoT sensors); cannot monitor 12V/24V rails directly. | Choose only for ultra-low-power sub-μA applications where supply voltage stays within 1.6V–6.5V and external reference is acceptable. |
Compared with LT6703HVIS5-3#TRPBF, the LT6703HVIS5-2#TRPBF provides inverted logic response essential for brownout detection; versus TLV7032IDR, it delivers full 1.4V–18V operation and eliminates reference design complexity at the cost of higher quiescent current.
Availability
LT6703HVIS5-2#TRPBF is available at Aetrix Electronics and suitable for battery-powered system monitoring, industrial control systems, automotive monitor and controls, and handheld instruments requiring stable component supply across extended temperature ranges.
Supply support for LT6703HVIS5-2#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 high-performance analog IC portfolio, emphasizing precision, low power, and robustness for demanding industrial and automotive applications.
The LT6703 family is designed as micropower supply voltage monitors targeting space- and power-constrained systems needing reliable, self-contained threshold detection without external references or support components.
FAQ
What is the input polarity configuration of the LT6703HVIS5-2#TRPBF?
The LT6703HVIS5-2#TRPBF features an inverting input (–IN) configuration: the output goes low when the voltage applied to Pin 3 (–IN) falls below the internal 400mV reference. This makes it ideal for brownout detection where decreasing supply voltage must trigger action. The noninverting input is fixed internally to the reference, so no external connection is needed for that node. This polarity is confirmed in the datasheet's PIN FUNCTIONS section and distinguishes it from the LT6703HVIS5-3#TRPBF variant.
Does the LT6703HVIS5-2#TRPBF require an external reference?
No, the LT6703HVIS5-2#TRPBF integrates a precision 400mV bandgap reference internally, eliminating the need for external reference ICs or resistor dividers. This reference is used as the fixed noninverting input of the comparator and is specified with ±1.25% maximum error at 25°C. The device's functionality - including threshold accuracy and hysteresis - is fully self-contained, simplifying design and reducing bill-of-materials cost. All reference-related performance data for the LT6703HVIS5-2#TRPBF is documented in the Electrical Characteristics tables.
What is the maximum allowable input voltage on the –IN pin of the LT6703HVIS5-2#TRPBF?
The –IN pin of the LT6703HVIS5-2#TRPBF supports an input voltage range of –0.3V to 36V relative to GND, independent of the VS supply voltage. This Over-The-Top® capability allows direct monitoring of high-voltage rails (e.g., 24V or 36V industrial buses) even when the device is powered from a lower supply like 3.3V or 5V. Absolute Maximum Ratings confirm 40V to (GND – 0.3V) for LT6703HV variants, and the LT6703HVIS5-2#TRPBF is an HV-grade part. Inputs below GND down to –0.3V are safe; further negative excursions require current limiting to <10mA per Absolute Maximum Ratings Note 3.
Can the LT6703HVIS5-2#TRPBF drive a MOSFET gate directly?
Yes, the LT6703HVIS5-2#TRPBF open-collector output can directly drive the gate of many logic-level N-channel MOSFETs. With guaranteed ≥5mA sink current and low VOL (≤250mV at 5mA), it can pull the gate to near ground to turn on devices like the Si2302 or DMN2004K. For high-side P-channel switching, the output can pull down the gate through a pull-up resistor to VS or a higher rail. Layout must include a minimum 0.1μF bypass capacitor between VS and GND, and avoid excessive capacitive loading (>100nF) if pulling up above 18V. This capability is verified in the Output Sink Current and VOL specifications.
What temperature range is guaranteed for the LT6703HVIS5-2#TRPBF?
The LT6703HVIS5-2#TRPBF is guaranteed to operate over the industrial temperature range of –40°C to +85°C. This is explicitly stated in the ORDER INFORMATION table under "SPECIFIED TEMPERATURE RANGE" for part number LT6703HVIS5-2#TRPBF, and confirmed in Note 4 of the Absolute Maximum Ratings section. All electrical characteristics in the –40°C to 85°C column (denoted by "l") apply across this full range, including supply current (15μA max), threshold voltage (392mV–408mV), and hysteresis (2mV–11.5mV). It is not rated for the extended –40°C to 125°C automotive grade (that applies to LT6703HVHS5-2#TRPBF).
LT6703HVIS5-2#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):
- 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
LT6703HVIS5-2#TRPBF FAQ
1.How can I place an order for LT6703HVIS5-2#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT6703HVIS5-2#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 LT6703HVIS5-2#TRPBF reliable?
The price and inventory of LT6703HVIS5-2#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT6703HVIS5-2#TRPBF is usually 5 days.
3.What payment methods are accepted for LT6703HVIS5-2#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT6703HVIS5-2#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT6703HVIS5-2#TRPBF?
LT6703HVIS5-2#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT6703HVIS5-2#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 LT6703HVIS5-2#TRPBF?
For technical support, including LT6703HVIS5-2#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT6703HVIS5-2#TRPBF requirements.
6.How does Aetrix verify that LT6703HVIS5-2#TRPBF is sourced from the original manufacturer or authorized distributors?
All LT6703HVIS5-2#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 LT6703HVIS5-2#TRPBF meets industry standards.
7.What is the process for return or replacement of LT6703HVIS5-2#TRPBF?
All LT6703HVIS5-2#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LT6703HVIS5-2#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 LT6703HVIS5-2#TRPBF part is unused and in its original packaging.
Return procedure for LT6703HVIS5-2#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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