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Analog Devices Inc./Maxim Integrated MAX6736XKTGD3+
- Part No.:
- MAX6736XKTGD3+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
MAX6736XKTGD3+.pdf
- Description:
- IC SUPERVISOR 2 CHANNEL SC70-5
- Quantity:
- Payment:
- Shipping:
Inventory:3,974
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Product details
Overview
MAX6736XKTGD3+ from Maxim Integrated is a dual fixed-voltage microprocessor supervisor IC in SC70-5 package, monitoring VCC1 (4.625V threshold) and VCC2 (3.075V threshold) with open-drain active-low RESET output, 150ms minimum reset timeout, and manual reset input. It asserts reset if either supply drops below its factory-trimmed threshold and maintains reset for ≥150ms after recovery - ideal for portable battery-powered systems requiring reliable power-up sequencing and fault detection.
For engineers reviewing the MAX6736XKTGD3+ datasheet, MAX6736XKTGD3+ pinout, MAX6736XKTGD3+ application, or MAX6736XKTGD3+ equivalent, key selection criteria include dual-supply monitoring capability, 6µA quiescent current, SC70-5 footprint constraints, -40°C to +85°C industrial temperature range, and compatibility with bidirectional µP reset I/O via external 4.7kΩ series resistor.
Technical Context
The MAX6736XKTGD3+ implements two independent voltage comparators with precision factory-trimmed thresholds (VTH1 = 4.625V, VTH2 = 3.075V), each referenced to an internal bandgap and featuring 0.5% hysteresis. Its reset logic uses a digital timeout counter triggered on any threshold violation, with restart-on-fall behavior ensuring robust immunity to supply transients shorter than 35µs at 100mV overdrive.
It integrates a 1.5kΩ internal pullup on MR and supports CMOS-level or pushbutton-driven manual reset assertion. The open-drain RESET output requires an external pullup and remains valid down to VCC1 = 1.2V, enabling operation across wide I/O supply ranges while maintaining guaranteed reset state integrity during brownout conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC1 Threshold | 4.625V ±75mV (factory-trimmed; ensures reliable reset assertion for 5V I/O rails) |
| VCC2 Threshold | 3.075V ±50mV (factory-trimmed; matches common 3.3V core supply tolerance) |
| Reset Timeout | 150ms min (guaranteed hold time prevents spurious µP boot during slow-rising supplies) |
| Supply Current | 6µA typical (enables multi-year battery life in always-on portable equipment) |
| Operating Temp | -40°C to +85°C (supports industrial and automotive under-hood ambient conditions) |
| Package | SC70-5 (1.6mm × 1.6mm footprint; enables ultra-compact PCB layout) |
| MR Input Logic | Active-low with 1.5kΩ internal pullup (eliminates external biasing; compatible with pushbutton or open-drain drivers) |
Pinout & Package
Package: SC70-5 (1.6mm × 1.6mm, 0.65mm pitch, 0.9mm max height), lead-free, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - RESET | Open-drain active-low reset output | Asserts low when VCC1 < 4.625V or VCC2 < 3.075V; requires external pullup; drives µP reset I/O directly or via 4.7kΩ series resistor |
| 2 - GND | Ground reference | Common return for all internal comparators, timers, and MR pullup; must be low-impedance connection to system ground plane |
| 3 - MR | Manual reset input | Active-low; forces RESET low for ≥1µs pulse width; internal 1.5kΩ pullup to VCC1 eliminates need for external bias |
| 4 - VCC2 | Secondary supply monitor input | Monitors 3.075V threshold for core supply; valid operation down to 1.0V; contributes to total ICC2 current of ≤20µA |
| 5 - VCC1 | Primary supply monitor input | Monitors 4.625V threshold for I/O supply; powers internal circuitry; ICC1 ≤10µA at 3.3V |
Key Features
| Feature | Design Value |
|---|---|
| Dual fixed-voltage supervision | Simultaneous monitoring of 4.625V (VCC1) and 3.075V (VCC2) thresholds eliminates need for two discrete supervisors |
| 150ms reset timeout | Guaranteed minimum assertion period ensures µP completes power-on self-test before release |
| 6µA supply current | Enables integration into energy-sensitive applications like GPS trackers and medical wearables without compromising battery runtime |
| SC70-5 package | Reduces board area by >50% vs. SOT23-5; supports high-density portable designs with tight space constraints |
| MR input with internal pullup | Removes external resistor requirement; simplifies BOM and reduces assembly cost for pushbutton-based reset implementation |
Applications
| Portable Power Management | Multi-Rail Sequencing |
|---|---|
Use Scenario: Battery-powered handheld GPS unit with separate 5V I/O and 3.3V core rails. IC Role / Device Role / Timing Role: Dual-supply supervisor asserting RESET until both rails stabilize post-battery insertion or cold start. Use Value: Prevents erratic µP operation during slow-rising Li-ion battery discharge curves by enforcing 150ms minimum reset hold time. | Use Scenario: Notebook computer motherboard requiring controlled power-up order between chipset I/O and CPU core supplies. IC Role / Device Role / Timing Role: Monitors VCC1 (5V rail) and VCC2 (3.3V rail) to gate RESET release only after both exceed thresholds for full timeout period. Use Value: Eliminates risk of latch-up or data corruption caused by out-of-spec voltage sequencing during cold boot. |
| Industrial Controller Reset | POS Terminal Supervision |
Use Scenario: Factory-floor PLC controller exposed to 12–24V DC input with internal DC/DC converters generating 5V and 3.3V rails. IC Role / Device Role / Timing Role: Detects undervoltage on either rail due to converter failure or load dump, triggering immediate µP reset. Use Value: Achieves <100ms fault-to-reset response with 6µA quiescent draw - critical for deterministic real-time control loop recovery. | Use Scenario: Point-of-sale terminal with coin-cell backup and main 5V USB power, where brownout on main supply must not corrupt transaction logs. IC Role / Device Role / Timing Role: Asserts RESET within 35µs of VCC1 drop below 4.625V, freezing µP state before nonvolatile memory write corruption occurs. Use Value: Guarantees safe shutdown window using internal 150ms timeout, allowing firmware to complete EEPROM commit before power loss. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-supply supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6316HUT46D3+ | Single-supply supervisor (4.63V only); no VCC2 monitoring; same SC70-5 package and 150ms timeout | Cannot supervise dual-rail systems; suitable only for single-rail reset where VCC2 monitoring is handled externally | Select when only primary I/O rail supervision is required and board space allows separate VCC2 monitor |
| TPS3808G33DBVR | Single-supply supervisor (3.3V threshold); 350ms timeout; SOT23-5 package; 2.5µA IQ | Lacks dual-threshold capability and MR input; lower quiescent current but larger footprint | Choose for ultra-low-power single-rail applications where extended timeout and smaller IQ outweigh dual-monitoring need |
Compared with MAX6736XKTGD3+, MAX6316HUT46D3+ reduces functionality to single-rail supervision but retains identical timing and package, while TPS3808G33DBVR offers lower IQ and longer timeout but requires redesign for dual-rail support and occupies more PCB area.
Availability
MAX6736XKTGD3+ is available at Aetrix Electronics and suitable for portable/battery-powered equipment, multivoltage systems, and notebook computers requiring stable component supply with guaranteed long-term availability and consistent parametric performance.
Supply support for MAX6736XKTGD3+ 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) is a semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for industrial, communications, and consumer applications.
The MAX6736–MAX6745 product line delivers ultra-low-power dual/triple-voltage supervision for space-constrained portable and battery-operated systems, with emphasis on precision threshold accuracy, minimal quiescent current, and compact SC70 packaging.
FAQ
What is the exact reset threshold voltage for VCC1 and VCC2 on the MAX6736XKTGD3+?
The MAX6736XKTGD3+ has factory-trimmed reset thresholds of 4.625V for VCC1 and 3.075V for VCC2, with tolerances of ±75mV and ±50mV respectively over the full -40°C to +85°C temperature range. These values are encoded in the "TG" suffix per Table 1 of the datasheet and are not adjustable.
Does the MAX6736XKTGD3+ support manual reset, and how is it implemented?
Yes, the MAX6736XKTGD3+ includes a dedicated active-low manual reset (MR) input on Pin 3. It features an internal 1.5kΩ pullup to VCC1, eliminating external biasing. A ≥1µs low pulse on MR forces RESET low and holds it for the full 150ms timeout period after MR returns high - fully documented in the Electrical Characteristics table.
What package type and dimensions does the MAX6736XKTGD3+ use?
The MAX6736XKTGD3+ is packaged in a 5-pin SC70 (SC70-5) case measuring 1.6mm × 1.6mm with 0.65mm pin pitch and maximum height of 0.9mm. This lead-free, RoHS-compliant package is explicitly listed in the Ordering Information section and confirmed in the Pin Configurations diagram.
Can the MAX6736XKTGD3+ be used with bidirectional µP reset pins?
Yes, the MAX6736XKTGD3+ open-drain RESET output is compatible with bidirectional µP reset I/O ports. The datasheet recommends placing a 4.7kΩ series resistor between RESET and the µP pin to prevent logic contention - a solution validated in Figure 5 of the Applications Information section.
What is the supply current consumption of the MAX6736XKTGD3+ at typical operating conditions?
The MAX6736XKTGD3+ draws 6µA typical total supply current (ICC1 + ICC2) at TA = +25°C with VCC1 = 3.3V and VCC2 = 2.5V, as shown in Figure TOC01. This ultra-low quiescent current is guaranteed across the full -40°C to +85°C range and enables multi-year operation in battery-backed systems.
MAX6736XKTGD3+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 5-TSSOP, SC-70-5, SOT-353
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Type:
- Multi-Voltage Supervisor
- Number of Voltages Monitored:
- 2
- Voltage - Threshold:
- 1.11V, 3.075V
- Output:
- Open Drain or Open Collector
- Reset:
- Active Low
- Reset Timeout:
- 150ms Minimum
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-5
MAX6736XKTGD3+ FAQ
1.How can I place an order for MAX6736XKTGD3+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6736XKTGD3+ 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 MAX6736XKTGD3+ reliable?
The price and inventory of MAX6736XKTGD3+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6736XKTGD3+ is usually 5 days.
3.What payment methods are accepted for MAX6736XKTGD3+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6736XKTGD3+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6736XKTGD3+?
MAX6736XKTGD3+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6736XKTGD3+ 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 MAX6736XKTGD3+?
For technical support, including MAX6736XKTGD3+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6736XKTGD3+ requirements.
6.How does Aetrix verify that MAX6736XKTGD3+ is sourced from the original manufacturer or authorized distributors?
All MAX6736XKTGD3+ 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 MAX6736XKTGD3+ meets industry standards.
7.What is the process for return or replacement of MAX6736XKTGD3+?
All MAX6736XKTGD3+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX6736XKTGD3+, 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 MAX6736XKTGD3+ part is unused and in its original packaging.
Return procedure for MAX6736XKTGD3+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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