My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX6378XR35-T
- Part No.:
- MAX6378XR35-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-70, SOT-323
- Datasheet:
-
MAX6378XR35-T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SC70-3
- Quantity:
- Payment:
- Shipping:
Inventory:2,488
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX6378XR35-T from Maxim Integrated is an ultra-low-power, active-low voltage detector IC with a factory-trimmed 3.50V threshold (±2.5% over temperature), 500nA supply current, push-pull output, and operation down to 1V VCC. It monitors regulated system or battery voltages in portable equipment and asserts a logic-low signal when VCC falls below VTH.
For engineers reviewing the MAX6378XR35-T datasheet, MAX6378XR35-T pinout, MAX6378XR35-T application, or MAX6378XR35-T equivalent, this device serves as a precision reset supervisor for microcontroller-based systems requiring low quiescent current, transient-immune power monitoring, and guaranteed logic state integrity across -40°C to +85°C.
Technical Context
The MAX6378XR35-T integrates a precision bandgap reference, comparator, and laser-trimmed resistive divider to set its 3.50V detection threshold without external components. Its internal architecture ensures stable trip-point accuracy across temperature and supply variations.
It features push-pull output logic (active-low), propagation delay of 9.5µs (typical), ±2.5% threshold tolerance over full temperature range, and immunity to fast VCC transients-ignoring negative glitches up to duration limits defined by threshold overdrive.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 3.50V nominal, ±2.5% over -40°C to +85°C - ensures reliable brown-out detection for 3.3V systems |
| Supply Current | 500nA typical - enables multi-year battery life in coin-cell-powered devices |
| Output Type | Active-low push-pull - drives logic inputs directly without pull-up resistor |
| VCC Operating Range | 1.2V to 5.5V - supports valid output assertion even during deep brown-out conditions |
| Propagation Delay | 9.5µs typical (falling edge) - provides fast response to supply collapse while rejecting sub-µs noise |
| Threshold Hysteresis | 100mV - prevents output oscillation near trip point during slow-ramping supplies |
| Tempco | 40ppm/°C - maintains tight threshold stability across industrial temperature range |
Pinout & Package
MAX6378XR35-T is housed in a 3-pin SC70 package (pin-compatible with SOT23-3), optimized for space-constrained portable designs. The package is RoHS-compliant and available in tape-and-reel format only.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (SC70) / 2 (SOT23) | GND | Ground reference for internal bandgap and comparator - must be low-impedance connection |
| 2 (SC70) / 1 (SOT23) | OUT | Active-low push-pull output - sinks current when asserted; drives MCU RESET or enable logic directly |
| 3 (both) | VCC | Supply input - powers internal circuitry and defines monitored rail; operates down to 1.2V |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low ICC | 500nA typical - extends battery runtime in always-on monitoring applications |
| No external components | Factory-trimmed threshold and hysteresis - eliminates calibration labor and BOM cost |
| Transient immunity | Rejects VCC glitches <9.5µs (at 100mV overdrive) - avoids false resets in noisy power environments |
| Guaranteed logic state | Valid output down to 1V VCC - ensures deterministic reset behavior during deep undervoltage |
| Small footprint | SC70-3 (1.25mm × 0.85mm) - saves PCB area in wearables and compact IoT sensors |
Applications
| Wearable Health Monitor | Industrial Sensor Node |
|---|---|
|
Use Scenario: Coin-cell-powered ECG patch continuously monitors battery voltage and triggers graceful shutdown before deep discharge. IC Role / Device Role / Timing Role: Voltage detector asserting active-low RESET to microcontroller upon VBAT falling below 3.50V. Use Value: Prevents data corruption and flash write errors by ensuring clean reset before supply collapse. |
Use Scenario: Battery-backed wireless sensor node in remote pipeline monitoring shuts down non-critical peripherals when main supply dips. IC Role / Device Role / Timing Role: Supervisory IC enabling load-switch control via active-low signal synchronized to 3.50V threshold. Use Value: Extends field service interval by avoiding premature battery exhaustion through precise undervoltage cutoff. |
| Smart Meter Backup Power | Medical Infusion Pump |
|
Use Scenario: Mains-powered smart meter uses supercapacitor backup; MAX6378XR35-T detects AC loss and initiates switchover. IC Role / Device Role / Timing Role: Primary brown-out detector initiating controlled transition from line to backup power. Use Value: Ensures uninterrupted timekeeping and event logging during grid interruptions. |
Use Scenario: Infusion pump with dual Li-ion cells uses MAX6378XR35-T to monitor combined pack voltage and halt motor drive at safe cutoff. IC Role / Device Role / Timing Role: Safety-critical voltage supervisor interfacing directly with pump controller's reset input. Use Value: Meets IEC 62304 Class C software safety requirements by guaranteeing deterministic reset at 3.50V ±2.5%. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage detector applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV803EB35DBZR | 3.5V threshold, 350nA ICC, open-drain output, SOT23-3 | Requires external pull-up; lower ICC but no push-pull drive capability | Select when system already uses open-drain reset buses or needs lowest possible current |
| TPS3808G33DBVR | 3.3V threshold, 1.1µA ICC, push-pull, adjustable delay, SOT23-6 | Higher current, larger package, fixed 3.3V threshold - not interchangeable for 3.5V requirement | Select only if 3.3V threshold suffices and programmable delay is needed; not drop-in |
Compared with TLV803EB35DBZR and TPS3808G33DBVR, the MAX6378XR35-T uniquely delivers 3.50V precision detection with push-pull drive and 500nA current in SC70 - making it optimal for space- and battery-limited 3.3V-system brown-out supervision where external components must be eliminated.
Availability
MAX6378XR35-T is available at Aetrix Electronics and suitable for wearable health monitors, industrial sensor nodes, smart meter backup power systems, and medical infusion pumps requiring stable component supply and long-term production continuity.
Supply support for MAX6378XR35-T 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
Maxim Integrated (now part of Analog Devices) designs high-performance analog and mixed-signal ICs for power, sensing, and interface applications in industrial, automotive, and consumer markets.
The MAX6375–MAX6380 family was engineered specifically for ultra-low-power voltage monitoring in battery-critical systems - delivering precision thresholds, minimal current draw, and robust transient rejection in miniature packages.
FAQ
What is the exact reset threshold voltage of the MAX6378XR35-T?
The MAX6378XR35-T has a factory-trimmed nominal reset threshold of 3.50V, with guaranteed tolerance of ±2.5% over the full operating temperature range (-40°C to +85°C). At +25°C, the typical threshold is 3.50V, and the min/max bounds are 3.412V and 3.587V respectively - confirmed in Table 1 of the official datasheet.
Does the MAX6378XR35-T require any external components to operate?
No, the MAX6378XR35-T requires no external components. Its precision bandgap reference, comparator, and laser-trimmed resistor network are fully integrated, enabling direct connection to VCC, GND, and the host system's reset input. This eliminates calibration, reduces BOM count, and improves reliability versus discrete solutions.
What is the output configuration of the MAX6378XR35-T?
The MAX6378XR35-T features an active-low push-pull output. When VCC drops below the 3.50V threshold, OUT is driven logic-low (typically ≤0.4V at 100µA sink); when VCC is above threshold, OUT is driven logic-high (typically ≥0.8×VCC). This eliminates the need for an external pull-up resistor.
Can the MAX6378XR35-T operate reliably at very low supply voltages?
Yes, the MAX6378XR35-T guarantees correct output logic state for VCC as low as 1.2V, and remains functional down to 1.0V. This ensures deterministic reset behavior during deep brown-out events - critical for preserving memory integrity and preventing erratic MCU operation in battery-powered systems.
Is the MAX6378XR35-T compatible with both SC70 and SOT23-3 footprints?
The MAX6378XR35-T is specified for the SC70-3 package (top mark blank per Table 2), with pinout identical to SOT23-3 but smaller dimensions (1.25mm × 0.85mm vs. 2.9mm × 1.6mm). While electrically pin-compatible, mechanical compatibility requires layout verification - SC70 pads are not interchangeable with SOT23 without redesign.
MAX6378XR35-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SC-70, SOT-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Type:
- Voltage Detector
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 3.5V
- Output:
- Push-Pull, Totem Pole
- Reset:
- Active Low
- Reset Timeout:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-3
MAX6378XR35-T FAQ
1.How can I place an order for MAX6378XR35-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6378XR35-T 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 MAX6378XR35-T reliable?
The price and inventory of MAX6378XR35-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6378XR35-T is usually 5 days.
3.What payment methods are accepted for MAX6378XR35-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6378XR35-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6378XR35-T?
MAX6378XR35-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6378XR35-T 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 MAX6378XR35-T?
For technical support, including MAX6378XR35-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6378XR35-T requirements.
6.How does Aetrix verify that MAX6378XR35-T is sourced from the original manufacturer or authorized distributors?
All MAX6378XR35-T 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 MAX6378XR35-T meets industry standards.
7.What is the process for return or replacement of MAX6378XR35-T?
All MAX6378XR35-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6378XR35-T, 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 MAX6378XR35-T part is unused and in its original packaging.
Return procedure for MAX6378XR35-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX6378XR35-T 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…
