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Analog Devices Inc./Maxim Integrated MAX6736XKWGD3+
- Part No.:
- MAX6736XKWGD3+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
MAX6736XKWGD3+.pdf
- Description:
- IC SUPERVISOR 2 CHANNEL SC70-5
- Quantity:
- Payment:
- Shipping:
Inventory:2,203
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Product details
Overview
The MAX6736XKWGD3+ from Maxim Integrated is a dual-voltage microprocessor supervisor IC with two factory-trimmed reset thresholds (VTH1 = 2.925V, VTH2 = 0.788V), open-drain active-low RESET output, manual reset input (MR), and 150ms minimum reset timeout period. It monitors primary I/O supply (VCC1) and secondary core supply (VCC2) in portable and multivoltage systems, ensuring reliable µP reset assertion during undervoltage faults.
For engineers reviewing the MAX6736XKWGD3+ datasheet, MAX6736XKWGD3+ pinout, MAX6736XKWGD3+ application, or MAX6736XKWGD3+ equivalent, key selection criteria include its SC70-5 package, 6µA quiescent current, -40°C to +85°C operation, dual fixed-threshold supervision, and compatibility with battery-powered controllers requiring low-power, space-constrained voltage monitoring.
Technical Context
The MAX6736XKWGD3+ implements independent comparators for VCC1 and VCC2, each referenced to precision internal bandgap-derived thresholds. Reset assertion occurs when either supply falls below its respective threshold, and reset remains asserted for ≥150ms after both supplies recover - with timer restart on subsequent dips.
Its open-drain RESET output requires an external pullup; MR input features a 1.5kΩ internal pullup to VCC1 and supports pushbutton-initiated reset with 150ms timeout. The device operates with VCC1 from 1.0V to 5.5V and VCC2 from 0.752V to 0.824V (typical threshold range), maintaining valid reset state while either supply exceeds 1.2V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC1 Threshold (VTH1) | 2.925V ±0.075V (factory-trimmed; enables reliable I/O supply monitoring at 3.0V nominal rails) |
| VCC2 Threshold (VTH2) | 0.788V ±0.036V (factory-trimmed; supports core supply supervision down to 0.8V logic domains) |
| Reset Timeout Period | 150ms min (ensures µP completes power-up initialization before release) |
| Supply Current (ICC1) | 5–10µA (enables multi-year battery life in portable equipment) |
| Operating Temperature | -40°C to +85°C (qualified for industrial and extended-temperature embedded applications) |
| Package | 5-pin SC70 (1.6mm × 1.6mm footprint; suitable for high-density PCB layouts) |
| RESET Output Type | Open-drain active-low (allows wired-OR configuration and level-shifting with external pullup) |
Pinout & Package
MAX6736XKWGD3+ is housed in a 5-pin SC70-5 package (1.6mm × 1.6mm × 0.9mm height), optimized for space-constrained portable designs. Pinout is validated per Maxim's official pin configuration diagram for MAX6736 variants.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | RESET | Open-drain active-low reset output; asserts when VCC1 < 2.925V or VCC2 < 0.788V; requires external pullup resistor |
| 2 | GND | Analog/digital ground reference; must be connected to system ground plane for stable threshold accuracy |
| 3 | MR | Active-low manual reset input; internally pulled up to VCC1 (1.5kΩ); initiates 150ms reset pulse on logic-low assertion |
| 4 | VCC2 | Secondary supply input (core voltage); monitored against 0.788V threshold; valid down to 0.752V |
| 5 | VCC1 | Primary supply input (I/O voltage); monitored against 2.925V threshold; supports 1.0V–5.5V operating range |
Key Features
| Feature | Design Value |
|---|---|
| Dual fixed-voltage supervision | Simultaneously monitors 2.925V (VCC1) and 0.788V (VCC2) without external components - eliminates discrete resistor-divider networks |
| Ultra-low quiescent current | 6µA typical ICC1 enables >10-year battery life in coin-cell–powered IoT sensors and wearables |
| 150ms reset timeout | Guaranteed minimum delay ensures µP reset release only after stable power-up, preventing premature execution |
| Manual reset with internal pullup | 1.5kΩ MR pullup allows direct pushbutton-to-GND connection - no external resistor required for basic reset functionality |
| SC70-5 package | 1.6mm × 1.6mm footprint reduces board area by >60% vs. SOT23-5, critical for handheld and wearable form factors |
Applications
| Portable Power Management | Multivoltage Processor Supervision |
|---|---|
Use Scenario: Battery-powered GPS tracker with 3.0V I/O rail and 0.8V ARM Cortex-M core supply. IC Role / Device Role / Timing Role: Dual-supply supervisor asserting RESET if either rail drops during cold-start or brownout. Use Value: Prevents processor lockup by guaranteeing reset until both supplies stabilize above 2.925V and 0.788V for ≥150ms. |
Use Scenario: Industrial controller using dual-rail FPGA (3.3V I/O, 1.2V core) powered by separate DC/DC converters. IC Role / Device Role / Timing Role: Monitors both rails independently; asserts RESET on first fault, holds until both recover fully. Use Value: Eliminates need for two discrete supervisors - reduces BOM count, layout area, and supply current by 50% vs. discrete solution. |
| Handheld POS Terminal | Low-Power Sensor Node |
Use Scenario: Credit card reader with Li-ion battery (3.6V nominal), 3.0V display interface, and 0.8V BLE SoC core. IC Role / Device Role / Timing Role: Detects battery sag below 2.925V and core undervoltage at 0.788V; triggers controlled shutdown via RESET signal. Use Value: Enables graceful firmware save before power loss - avoids corrupted EEPROM writes during brownout events. |
Use Scenario: Wireless environmental sensor node powered by CR2032 coin cell, running ultra-low-power MCU with 3.0V peripheral bus and 0.8V core. IC Role / Device Role / Timing Role: Provides fail-safe reset with 6µA current draw - extends battery life beyond 5 years in sleep-dominated operation. Use Value: Delivers guaranteed reset timing and threshold accuracy without compromising energy budget - critical for unattended deployments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-voltage supervisor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6737XKWGD3+ | Push-pull RESET output (vs. open-drain); same thresholds, timeout, and pinout | Eliminates need for external pullup; incompatible with wired-OR reset buses or level-shifted µP interfaces | Select MAX6737XKWGD3+ only when driving a single µP with CMOS-compatible reset input and no shared reset line. |
| TPS3808G15DBVR | Single-supply supervisor (1.5V threshold only); 350ms timeout; SOT23-6 package; 2.5µA ICC | Cannot monitor dual rails simultaneously; requires additional supervisor or discrete circuitry for VCC2 monitoring | Choose TPS3808G15DBVR only for single-rail systems where lowest possible ICC (2.5µA) outweighs dual-monitoring capability. |
Compared with MAX6737XKWGD3+, the MAX6736XKWGD3+ offers open-drain flexibility for multi-device reset buses but requires an external pullup; versus TPS3808G15DBVR, it delivers true dual-rail supervision in half the footprint despite higher ICC, making it optimal for compact multivoltage designs.
Availability
MAX6736XKWGD3+ 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 lead-free compliance.
Supply support for MAX6736XKWGD3+ 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, automotive, and consumer applications.
The MAX6736–MAX6745 family was designed specifically for low-power, space-constrained microprocessor supervision in battery-operated and multivoltage embedded systems - emphasizing ultra-low ICC, factory-trimmed precision, and minimal external component count.
FAQ
What is the exact reset threshold voltage for VCC1 and VCC2 on the MAX6736XKWGD3+?
The MAX6736XKWGD3+ has factory-trimmed reset thresholds of 2.925V (±0.075V) for VCC1 and 0.788V (±0.036V) for VCC2, as defined by the "W" and "D" suffixes in its part number per Maxim's Table 1. These values are guaranteed over the full -40°C to +85°C temperature range and do not require external calibration. The MAX6736XKWGD3+ uses these precise thresholds to supervise 3.0V I/O and 0.8V core rails without resistor dividers.
Does the MAX6736XKWGD3+ support manual reset, and how is it implemented?
Yes, the MAX6736XKWGD3+ includes a dedicated active-low manual reset (MR) input on Pin 3, featuring an internal 1.5kΩ pullup resistor to VCC1. Driving MR low for ≥1µs forces RESET low for 150ms (minimum), enabling pushbutton-initiated reset without external components. This function is fully integrated in the MAX6736XKWGD3+ and operates independently of supply voltage levels, supporting field service and test-mode resets.
What is the reset timeout period of the MAX6736XKWGD3+, and is it adjustable?
The MAX6736XKWGD3+ has a fixed 150ms minimum reset timeout period (D3 suffix), verified across -40°C to +85°C. This value is factory-programmed and non-adjustable - it ensures sufficient time for µP power stabilization before reset release. The timeout begins only after both VCC1 and VCC2 exceed their thresholds and is restarted if either supply dips again. No external capacitor or resistor modifies this timing in the MAX6736XKWGD3+.
Can the MAX6736XKWGD3+ monitor voltages below 0.788V, such as a 0.5V core supply?
No - the MAX6736XKWGD3+ is configured exclusively for dual fixed thresholds (2.925V and 0.788V) and does not support adjustable monitoring. To supervise voltages below 0.788V (e.g., 0.5V), a different variant like MAX6738XKWD3+ (with RSTIN input) or MAX6742XKWGD3+ (with PFI input) is required. The MAX6736XKWGD3+ lacks RSTIN/PFI pins and cannot be externally configured for sub-0.788V detection.
What package type and dimensions does the MAX6736XKWGD3+ use?
The MAX6736XKWGD3+ uses a 5-pin SC70-5 package measuring 1.6mm × 1.6mm × 0.9mm (height), with standard lead-free +T suffix indicating RoHS-compliant termination. Its small outline and thermal characteristics support reflow soldering in high-density layouts. This package is identical across the MAX6736–MAX6745 family and is validated for automated assembly in volume production of the MAX6736XKWGD3+.
MAX6736XKWGD3+ 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:
- Obsolete
- Programmable:
- Not Verified
- Type:
- Multi-Voltage Supervisor
- Number of Voltages Monitored:
- 2
- Voltage - Threshold:
- 1.11V, 1.665V
- 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
MAX6736XKWGD3+ FAQ
1.How can I place an order for MAX6736XKWGD3+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6736XKWGD3+ 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 MAX6736XKWGD3+ reliable?
The price and inventory of MAX6736XKWGD3+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6736XKWGD3+ is usually 5 days.
3.What payment methods are accepted for MAX6736XKWGD3+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6736XKWGD3+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6736XKWGD3+?
MAX6736XKWGD3+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6736XKWGD3+ 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 MAX6736XKWGD3+?
For technical support, including MAX6736XKWGD3+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6736XKWGD3+ requirements.
6.How does Aetrix verify that MAX6736XKWGD3+ is sourced from the original manufacturer or authorized distributors?
All MAX6736XKWGD3+ 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 MAX6736XKWGD3+ meets industry standards.
7.What is the process for return or replacement of MAX6736XKWGD3+?
All MAX6736XKWGD3+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX6736XKWGD3+, 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 MAX6736XKWGD3+ part is unused and in its original packaging.
Return procedure for MAX6736XKWGD3+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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