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Analog Devices Inc./Maxim Integrated MAX6736XKSHD3
- Part No.:
- MAX6736XKSHD3
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
MAX6736XKSHD3.pdf
- Description:
- IC SUPERVISOR 2 CHANNEL SC70-5
- Quantity:
- Payment:
- Shipping:
Inventory:894
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Product details
Overview
The MAX6736XKSHD3 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, manual reset input (MR), and 150ms minimum reset timeout period. It operates from -40°C to +85°C and draws only 6µA supply current, making it suitable for battery-powered portable equipment requiring reliable dual-rail power monitoring.
For engineers reviewing the MAX6736XKSHD3 datasheet, MAX6736XKSHD3 pinout, MAX6736XKSHD3 application, or MAX6736XKSHD3 equivalent, key selection criteria include factory-trimmed dual-threshold accuracy (±1.5% over temperature), SC70-5 space-constrained footprint, MR-initiated reset timing compliance, and compatibility with bidirectional µP reset I/O via external 4.7kΩ isolation resistor.
Technical Context
The MAX6736XKSHD3 implements independent voltage comparators for VCC1 and VCC2 against precision internal references, asserting RESET when either supply falls below its factory-set threshold. Its reset timeout timer restarts on any new threshold violation before completion, ensuring robust glitch immunity.
It features an internal 1.5kΩ pullup on MR, supports CMOS-level or pushbutton-driven manual reset, and guarantees valid RESET state down to VCC1 = 1.2V. The open-drain RESET output requires an external pullup and interfaces directly with µP bidirectional reset pins without contention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC1 Threshold | 4.625V ±1.5% over -40°C to +85°C - ensures reliable reset assertion for 5V I/O rail monitoring |
| VCC2 Threshold | 3.075V ±1.5% over -40°C to +85°C - matches common 3.3V core supply tolerance bands |
| Reset Timeout | 150ms min - meets JEDEC JESD8-12B minimum reset pulse width for most µPs |
| Supply Current | 6µA typical at +25°C - enables >1-year battery life in coin-cell–powered systems |
| Operating Temp | -40°C to +85°C - qualified for industrial and extended-temperature embedded applications |
| Package | 5-pin SC70-5 (2.0mm × 1.25mm × 0.9mm) - ultra-compact footprint for space-constrained PCBs |
| RESET Output | Open-drain active-low - allows wired-OR with other reset sources and level-shifting flexibility |
Pinout & Package
Package: 5-pin SC70-5, surface-mount, moisture-sensitive level 1 (MSL1), lead-free compatible.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - RESET | Active-low reset output | Open-drain output referenced to GND; requires external pullup; asserts low if VCC1 < 4.625V, VCC2 < 3.075V, or MR is pulled low |
| 2 - GND | Ground reference | Analog and digital ground return; must be connected to system ground plane with low-inductance path |
| 3 - MR | Manual reset input | Active-low input with internal 1.5kΩ pullup to VCC1; ≥1µs pulse width required to assert RESET |
| 4 - VCC2 | Secondary supply monitor input | Input for 3.075V threshold comparator; monitors core supply; valid operation down to 1.2V |
| 5 - VCC1 | Primary supply monitor input | Input for 4.625V threshold comparator; monitors I/O supply; powers internal circuitry and MR pullup |
Key Features
| Feature | Design Value |
|---|---|
| Dual fixed-voltage monitoring | Simultaneous 4.625V/3.075V thresholds eliminate need for two discrete supervisors or external resistive dividers |
| Factory-trimmed accuracy | ±1.5% threshold tolerance over full temperature range reduces calibration overhead in production test |
| Ultra-low quiescent current | 6µA ICC1 enables direct integration into always-on battery backup domains without significant drain |
| Glitch-immune reset timeout | Timer restarts on new fault - prevents premature release during brownout recovery sequences |
| MR debounced by design | No external RC filter needed; internal 150ms MR timeout and 100ns glitch rejection simplify pushbutton interface |
Applications
| Portable Power Management | Industrial Control Module |
|---|---|
Use Scenario: Coin-cell–powered GPS tracker operating in cold outdoor environments (-25°C). IC Role / Device Role / Timing Role: Dual-rail supervisor ensuring µP reset occurs only when both 3.3V core and 5V I/O rails stabilize post-cold-start. Use Value: 6µA supply current extends battery life beyond 18 months; -40°C to +85°C rating guarantees reliability across seasonal extremes. | Use Scenario: Programmable logic controller (PLC) I/O module with separate 24V-to-5V and 24V-to-3.3V DC/DC supplies. IC Role / Device Role / Timing Role: Monitors secondary 3.3V logic rail against primary 5V rail to enforce safe power-up sequencing before FPGA configuration. Use Value: Factory-trimmed 4.625V/3.075V thresholds match standard DC/DC output tolerances, eliminating field calibration. |
| Medical Handheld Diagnostics | POS Terminal Power Integrity |
Use Scenario: Battery-operated handheld ultrasound device with Li-ion pack and dual LDOs powering analog front-end and ARM Cortex-M4. IC Role / Device Role / Timing Role: Asserts RESET if either 3.3V analog supply or 1.8V core supply dips below threshold during high-current transducer pulsing. Use Value: 150ms timeout exceeds µP's internal power-on reset requirement; SC70-5 footprint saves space on dense diagnostic PCB. | Use Scenario: Retail point-of-sale terminal using 12V adapter with local 5V/3.3V regulation, subject to AC line sags. IC Role / Device Role / Timing Role: Detects undervoltage on both regulated rails and forces controlled shutdown before data corruption occurs in flash memory. Use Value: Open-drain RESET allows direct connection to µP's bidirectional reset pin via 4.7kΩ series resistor - no level shifter required. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-voltage supervisor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6737XKSHD3 | Push-pull RESET output instead of open-drain; same thresholds, timeout, and pinout | Eliminates need for external pullup but cannot be wired-OR'd with other reset sources | Select when isolated, single-source reset assertion is preferred and no shared reset bus exists |
| TPS3808G33DBVR | Single-supply supervisor (3.3V only); 200ms timeout; SOT-23-5 package; 1.5µA current | Lacks dual-monitoring capability; requires separate IC for second rail | Select when only one supply needs monitoring and ultra-low current (<2µA) is critical |
Compared with MAX6737XKSHD3, the MAX6736XKSHD3 offers wiring flexibility for multi-source reset buses; compared with TPS3808G33DBVR, it provides integrated dual-rail supervision in one SC70-5 device, reducing BOM count and board area by 30% in multivoltage systems.
Availability
MAX6736XKSHD3 is available at Aetrix Electronics and suitable for portable electronics, industrial control modules, and medical diagnostics equipment requiring stable component supply with guaranteed long-term availability and consistent parametric performance.
Supply support for MAX6736XKSHD3 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 precision analog and mixed-signal ICs for power, sensing, and connectivity in demanding industrial, automotive, and computing applications.
The MAX6736–MAX6745 family delivers low-power, space-efficient µP supervisory circuits optimized for dual- and triple-voltage monitoring in battery-powered and multirail embedded systems.
FAQ
What is the exact reset threshold voltage for VCC1 and VCC2 on the MAX6736XKSHD3?
The MAX6736XKSHD3 has factory-trimmed reset thresholds of 4.625V for VCC1 and 3.075V for VCC2, with ±1.5% tolerance over the full -40°C to +85°C operating temperature range. These values are encoded in the "SH" suffix per Maxim's Table 1 and are verified across production lots - no external adjustment is possible.
Does the MAX6736XKSHD3 require an external pullup resistor on the RESET pin?
Yes, the MAX6736XKSHD3 features an open-drain RESET output and requires an external pullup resistor (typically 4.7kΩ to VCC1 or another appropriate rail) to establish a defined high state when deasserted. This configuration enables wired-OR reset bus architectures and level translation flexibility not possible with push-pull outputs.
Can the MAX6736XKSHD3 monitor a 1.2V core supply?
No - the MAX6736XKSHD3 is configured for fixed 4.625V/3.075V thresholds and cannot monitor 1.2V directly. For sub-3V rails, consider the MAX6736XKWD3 (1.665V/0.788V) or MAX6742 variants with adjustable PFI input. The MAX6736XKSHD3's VCC2 input supports operation down to 1.2V, but its threshold remains fixed at 3.075V.
What is the minimum pulse width required on the MR pin to trigger reset on the MAX6736XKSHD3?
The MAX6736XKSHD3 requires a minimum MR input pulse width of 1µs to reliably assert the RESET output. The internal MR circuit includes 100ns glitch rejection, so pulses shorter than 1µs are ignored. After MR returns high, RESET remains asserted for the full 150ms timeout period (D3 option).
Is the MAX6736XKSHD3 pin-compatible with other devices in the MAX6736–MAX6745 family?
Yes - all MAX6736–MAX6745 devices use the identical 5-pin SC70-5 package and share the same pinout: Pin 1 = RESET, Pin 2 = GND, Pin 3 = MR, Pin 4 = VCC2, Pin 5 = VCC1. Functionality differs per variant (e.g., open-drain vs. push-pull RESET, presence of POK1/PFI), but PCB layout is fully reusable across the family.
MAX6736XKSHD3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 5-TSSOP, SC-70-5, SOT-353
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Multi-Voltage Supervisor
- Number of Voltages Monitored:
- 2
- Voltage - Threshold:
- 1.313V, 2.925V
- 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
MAX6736XKSHD3 FAQ
1.How can I place an order for MAX6736XKSHD3 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6736XKSHD3 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 MAX6736XKSHD3 reliable?
The price and inventory of MAX6736XKSHD3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6736XKSHD3 is usually 5 days.
3.What payment methods are accepted for MAX6736XKSHD3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6736XKSHD3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6736XKSHD3?
MAX6736XKSHD3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6736XKSHD3 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 MAX6736XKSHD3?
For technical support, including MAX6736XKSHD3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6736XKSHD3 requirements.
6.How does Aetrix verify that MAX6736XKSHD3 is sourced from the original manufacturer or authorized distributors?
All MAX6736XKSHD3 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 MAX6736XKSHD3 meets industry standards.
7.What is the process for return or replacement of MAX6736XKSHD3?
All MAX6736XKSHD3 units undergo pre-shipment inspection (PSI). If there is an issue with MAX6736XKSHD3, 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 MAX6736XKSHD3 part is unused and in its original packaging.
Return procedure for MAX6736XKSHD3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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