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Analog Devices Inc./Maxim Integrated DS1836D-10
- Part No.:
- DS1836D-10
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
DS1836D-10.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:1,964
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Product details
Overview
DS1836D-10 from Maxim Integrated is a 3.3V microprocessor supervisory circuit with dual-supply power switching, precision voltage monitoring, and non-maskable interrupt (NMI) generation. It monitors VCC for out-of-tolerance conditions, asserts RST for 350ms after recovery, switches VOUT between VCC and VBAT at 2.6V/2.8V thresholds, and triggers NMI when IN drops below 1.25V - ideal for battery-backed PIC-based embedded systems requiring fail-safe power management.
For engineers reviewing the DS1836D-10 datasheet, DS1836D-10 pinout, DS1836D-10 application, or DS1836D-10 equivalent, key selection criteria include its 2.88V VCC reset trip point, 2.65V VCC-to-VBAT switch threshold, push-pull RST output, NMI open-drain interface, and support for -40°C to +85°C industrial operation.
Technical Context
The DS1836D-10 implements a precision bandgap-referenced comparator for VCC monitoring and IN sense input, with hysteresis built into its power-switching logic to prevent chatter during supply transitions. Its reset assertion timing is internally timed and independent of external components, ensuring consistent 350ms reset hold time after VCC returns to tolerance.
Unlike DS1836A/B variants, the DS1836D-10 operates specifically in 3.3V systems: it initiates VOUT switching from VBAT to VCC when VCC rises above 2.80V (typ), and reverts to VBAT when VCC falls below 2.65V (typ); its RST output activates when VCC drops below 2.88V (typ) and remains active for ≥350ms post-recovery.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Reset Trip Point | 2.80V to 2.97V (typ 2.88V) - defines precise 3.3V supply brown-out detection threshold |
| VCC-to-VBAT Switch Threshold | 2.60V to 2.70V (typ 2.65V) - ensures clean, hysteresis-protected power source handover |
| RST Active Duration | 200ms to 500ms (typ 350ms) - guarantees sufficient processor initialization time after power recovery |
| IN Sense Trip Voltage | 1.15V to 1.35V (typ 1.25V) - enables user-configurable early-warning NMI via external resistor divider |
| Operating Temperature | -40°C to +85°C - supports industrial-grade reliability without derating |
| Supply Voltage Range | VCC/VBAT = 1.2V to 5.5V - allows flexible use with backup batteries or auxiliary rails |
| Output Type | Push-pull RST, open-drain NMI - eliminates need for external pull-ups on RST; NMI requires 10kΩ pull-up |
Pinout & Package
DS1836D-10 is available in 8-pin SO (150mil) surface-mount package and 8-pin DIP (300mil) through-hole package. Both share identical pin mapping.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC | Main power supply input | 3.3V nominal supply; monitored for reset and switching decisions |
| VBAT | Battery backup supply input | Provides continuous VOUT during main supply failure; leakage <0.1μA |
| NC | No-connect terminal | Not internally bonded; must remain unconnected per design |
| VOUT | Switched power output | Delivers regulated power from VCC or VBAT depending on real-time voltage comparison |
| GND | Ground reference | Common return path for all analog and digital functions; required for accurate sensing |
| IN | User-defined sense input | High-impedance comparator input referenced to 1.25V internal bandgap; accepts divided system rail |
| NMI | Non-maskable interrupt output | Open-drain signal asserting early warning of impending power loss; requires external pull-up |
| RST | Reset output | Push-pull CMOS output actively driven low during fault; no external pull-up needed |
Key Features
| Feature | Design Value |
|---|---|
| Dual-supply power switching | Automatically selects VCC or VBAT for VOUT based on real-time voltage comparison with 0.1V hysteresis |
| Temperature-compensated voltage reference | Stable 1.25V internal bandgap reference enables accurate, drift-free IN and VCC monitoring across -40°C to +85°C |
| Programmable early-warning NMI | Configurable trip point via external resistor divider on IN pin provides system-level shutdown headroom before RST assertion |
| Guaranteed 350ms reset hold time | Internally timed reset pulse ensures reliable microcontroller initialization regardless of supply ramp rate or noise |
| Low quiescent current | 30–50μA typical ICC at 3.6V enables long battery life in always-on backup applications |
Applications
| Industrial PLC I/O Module | PIC-Based Data Logger |
|---|---|
Use Scenario: Maintains real-time clock and SRAM state during AC mains interruption using supercapacitor or coin-cell backup. IC Role / Device Role / Timing Role: Supervisory controller providing VCC monitoring, seamless VOUT source switching, and NMI-triggered graceful shutdown. Use Value: Prevents data corruption by enabling firmware-controlled save operations within 100–200μs of NMI assertion, before VCC collapse reaches critical level. | Use Scenario: Powers and monitors a PIC16F877A-based environmental sensor node operating from solar-charged Li-ion battery with USB fallback. IC Role / Device Role / Timing Role: Dual-rail supervisor managing primary/backup power routing and asserting reset if main supply dips below 2.88V. Use Value: Eliminates discrete reset IC + power switch + voltage detector, reducing BOM count by 3 components and PCB area by >12mm². |
| Medical Infusion Pump Controller | Smart Meter Power Management |
Use Scenario: Ensures safe motor stop and EEPROM logging during unexpected 3.3V rail collapse caused by ESD or load dump. IC Role / Device Role / Timing Role: Fault-detection and fail-safe coordinator generating NMI for emergency halt and RST for controlled reboot. Use Value: Delivers deterministic 350ms reset window aligned to IEC 60601-1 power interruption immunity requirements. | Use Scenario: Provides tamper-resistant power supervision in AMI meters where VCC may be interrupted during battery replacement or grid outage. IC Role / Device Role / Timing Role: Battery-switchover manager and brown-out detector with guaranteed reset hold time and NMI-driven secure state capture. Use Value: Enables full meter state preservation (registers, timestamps, event logs) even during sub-100ms VCC glitches. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6361KA29+T | Fixed 2.93V reset threshold; no power-switching function; only RST output (no NMI or VOUT) | Suitable for basic reset-only applications without battery switchover or early-warning interrupt | Select when only brown-out reset is needed and VOUT/NMI functionality is unnecessary |
| TPS3808G33DBVR | 3.3V fixed reset threshold (3.08V min); no VOUT switching or NMI; push-pull RST; 1.6μA IQ | Lower power, but lacks dual-supply management and predictive interrupt capability | Prefer for ultra-low-power battery-only systems where backup autonomy and early warning are not required |
Compared with MAX6361KA29+T and TPS3808G33DBVR, the DS1836D-10 uniquely integrates power-source arbitration, NMI-based pre-failure signaling, and guaranteed 350ms reset timing - making it irreplaceable in applications demanding coordinated shutdown, battery-backed operation, and deterministic recovery behavior.
Availability
DS1836D-10 is available at Aetrix Electronics and suitable for industrial PLC I/O modules, PIC-based data loggers, medical infusion pump controllers, and smart meter power management systems requiring stable component supply and long-term lifecycle support.
Supply support for DS1836D-10 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, mixed-signal, and power management ICs for industrial, medical, and communications applications.
The DS1836D-10 belongs to the MicroManager™ family of supervisory circuits engineered specifically for robust, multi-rail power monitoring and fail-safe microprocessor reset in battery-critical embedded systems.
FAQ
What is the exact VCC reset threshold for DS1836D-10?
The DS1836D-10 has a specified VCC reset trip point of 2.80V (min), 2.88V (typ), and 2.97V (max) - calibrated for 3.3V systems. This threshold is temperature-compensated and applies across the full -40°C to +85°C operating range. The DS1836D-10 uses this value to assert RST during brown-out and maintain it for ≥350ms after VCC recovers above the release threshold of 2.97V.
Does DS1836D-10 support true 0V VCC operation for RST output?
Yes - the DS1836D-10's RST output uses a push-pull structure that remains valid even when VCC drops below 1.2V. With an external 100kΩ pull-down resistor from RST to GND, the DS1836D-10 can drive RST low down to 0V VCC, ensuring reset integrity during complete power loss. This feature is explicitly validated in the DS1836D-10 datasheet Figure 5.
How does DS1836D-10 differ from DS1836B-10?
The DS1836D-10 is the 3.3V variant with 2.88V reset and 2.65V switch thresholds, while DS1836B-10 is the 5V variant with 4.37V reset and 3.85V switch thresholds. They share identical pinout and NMI functionality but are not interchangeable due to incompatible voltage thresholds. Using DS1836B-10 in a 3.3V system would cause premature reset assertion and failed power switching.
What external components are required for DS1836D-10 NMI operation?
The DS1836D-10 NMI output requires a single external pull-up resistor (typically 10kΩ) to VCC or VBAT. For the IN sense input, a two-resistor voltage divider is needed to scale the monitored rail to ≤1.25V at the IN pin - e.g., for a 4.5V rail, R1 = 260kΩ and R2 = 100kΩ yields 1.25V trip point. No other passive components are mandatory for basic DS1836D-10 operation.
Is DS1836D-10 RoHS-compliant and halogen-free?
Yes - DS1836D-10 is manufactured in RoHS-compliant, lead-free, and halogen-free packaging per Maxim Integrated's standard product policy. The 8-pin SO package uses matte tin lead finish, and the device meets JEDEC J-STD-020 moisture sensitivity level 1 (MSL-1). Full compliance documentation is available under Analog Devices' product change notices for DS1836D-10.
DS1836D-10 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- MicroManager
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Type:
- Battery Backup Circuit
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 2.88V
- Output:
- Push-Pull, Totem Pole
- Reset:
- Active High
- Reset Timeout:
- 200ms Minimum
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 8-PDIP
DS1836D-10 FAQ
1.How can I place an order for DS1836D-10 through Aetrix?
Please submit a Request for Quotation (RFQ) for DS1836D-10 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 DS1836D-10 reliable?
The price and inventory of DS1836D-10 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DS1836D-10 is usually 5 days.
3.What payment methods are accepted for DS1836D-10?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DS1836D-10 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DS1836D-10?
DS1836D-10 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DS1836D-10 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 DS1836D-10?
For technical support, including DS1836D-10 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DS1836D-10 requirements.
6.How does Aetrix verify that DS1836D-10 is sourced from the original manufacturer or authorized distributors?
All DS1836D-10 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 DS1836D-10 meets industry standards.
7.What is the process for return or replacement of DS1836D-10?
All DS1836D-10 units undergo pre-shipment inspection (PSI). If there is an issue with DS1836D-10, 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 DS1836D-10 part is unused and in its original packaging.
Return procedure for DS1836D-10:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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