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Analog Devices Inc./Maxim Integrated MAX6897PALT/GG8
- Part No.:
- MAX6897PALT/GG8
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- 6-WFDFN
- Datasheet:
-
MAX6897PALT/GG8.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL 6UDFN
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
MAX6897PALT/GG8 from Maxim Integrated is an ultra-small, low-power voltage supervisory circuit with adjustable sequencing capability. It features an active-high enable input, active-high open-drain output, 0.5V precision monitor threshold (±1.8% over temperature), capacitor-adjustable delay (40µs to >1s), and 150ns enable-to-output propagation delay. It is used in power-supply sequencing for multi-rail systems requiring precise timing control and rail isolation.
For engineers reviewing the MAX6897PALT/GG8 datasheet, MAX6897PALT/GG8 pinout, MAX6897PALT/GG8 application, or MAX6897PALT/GG8 equivalent, key selection considerations include its 150ns fixed enable propagation delay (vs. capacitor-adjustable A versions), 28V-tolerant open-drain output, -40°C to +125°C automotive-grade operation, and µDFN-6 (1.0mm × 1.5mm) package compatibility with space-constrained embedded power management.
Technical Context
The MAX6897PALT/GG8 implements a high-impedance monitor input (IN) with fixed 0.5V rising threshold and 5mV hysteresis, enabling precise low-voltage rail monitoring via external resistive dividers. Its ENABLE pin is active-high and logic-compatible (VIH = 1.4V, VIL = 0.4V), allowing direct interface with microcontroller GPIOs.
Upon ENABLE assertion and IN voltage exceeding 0.5V, the device asserts its open-drain OUT after a fixed 150ns propagation delay - not capacitor-programmed like A variants. The output remains asserted until IN falls below 0.495V or ENABLE is deasserted, at which point OUT releases immediately (high-impedance state), requiring an external pullup resistor.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.5V to 5.5V - supports wide-input industrial and automotive power rails without external regulation. |
| Monitor Threshold | 0.5V ±1.8% over -40°C to +125°C - enables accurate monitoring of sub-1V rails (e.g., 1.2V, 1.8V) using high-value divider resistors. |
| Enable-to-OUT Delay | 150ns typ - deterministic, jitter-free response for time-critical enable coordination in multi-stage power-up sequences. |
| Output Type | Active-high open-drain, 28V tolerant - allows level-shifting and wired-OR configuration with external pullup up to 28V. |
| Supply Current | 10µA typ at 3.3V - enables always-on supervision in battery-backed or ultra-low-power systems. |
| Operating Temperature | -40°C to +125°C - qualified for under-hood automotive, industrial control, and harsh-environment applications. |
| Package | 6-pin µDFN (1.0mm × 1.5mm, 0.5mm pitch) - ultra-compact footprint for dense PCB layouts and portable electronics. |
Pinout & Package
MAX6897PALT/GG8 is housed in a 6-pin ultra-thin µDFN package (1.0mm × 1.5mm, 0.5mm pitch), optimized for minimal board area and thermal performance (θJA = 477°C/W). Pin 1 is marked with a dot or beveled corner; the package is RoHS-compliant and lead-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - ENABLE | Active-high logic-enable input | Drive high to assert OUT after 150ns; drive low to force immediate high-impedance OUT regardless of IN voltage. |
| 2 - GND | Ground reference | Primary return path for internal circuitry and CDELAY capacitor discharge; must be low-impedance connection. |
| 3 - IN | High-impedance monitor input | Accepts divided rail voltage; triggers on 0.5V rising edge (5mV hysteresis); input leakage ≤±15nA enables MΩ-range dividers. |
| 4 - OUT | Active-high open-drain output | Drives low when asserted; requires external pullup (e.g., to 3.3V/5V/28V); sinks ≥90µA at VOL ≤0.3V (VCC ≥1.2V). |
| 5 - CDELAY | Delay timing node | Internal 250nA current source charges external capacitor; unused in P-version - delay is fixed at 150ns, not capacitor-programmed. |
| 6 - VCC | Power supply input | 1.5V–5.5V operation; bypass with 0.1µF ceramic capacitor near pin to suppress noise-induced false triggering. |
Key Features
| Feature | Design Value |
|---|---|
| Fixed 150ns enable propagation delay | Eliminates capacitor tolerance and temperature drift effects - ensures repeatable, predictable sequencing timing across batches and temperatures. |
| 28V-tolerant open-drain output | Enables direct interface with higher-voltage rails (e.g., 12V, 24V) without level-shifters - simplifies multi-supply system design. |
| 0.5V ±1.8% threshold over full temperature range | Guarantees accurate detection of low-voltage rails (e.g., 1.2V, 1.8V) even at extreme temperatures - critical for reliable reset generation. |
| Ultra-low 10µA supply current | Minimizes quiescent power draw in always-on supervision circuits - extends battery life in portable and backup-power applications. |
| Automotive-grade -40°C to +125°C operation | Validated for engine-control units, ADAS modules, and infotainment systems where ambient temperature extremes are routine. |
Applications
| Power-Supply Sequencing | Microcontroller Reset Coordination |
|---|---|
Use Scenario: Controlling startup order of multiple DC-DC converters (e.g., 12V → 5V → 3.3V → 1.8V) in telecom base station power architecture. IC Role / Device Role / Timing Role: Supervisory sequencer that asserts downstream enable signals only after upstream rail reaches valid voltage and stabilization delay completes. Use Value: Prevents latch-up and shoot-through in cascaded regulators by enforcing strict voltage-rail dependency with deterministic 150ns enable latency. |
Use Scenario: Generating a clean, glitch-free reset pulse for an ARM Cortex-M7 microcontroller during cold start and brownout recovery. IC Role / Device Role / Timing Role: Precision voltage monitor asserting open-drain RESET# signal only after VCC exceeds 0.5V × (R1+R2)/R2 and ENABLE is validated. Use Value: Ensures CPU enters known state before clock initialization - eliminates boot failures caused by marginal VDD ramp rates or noise. |
| Industrial Sensor Node Power Management | Automotive Body Control Module (BCM) |
Use Scenario: Enabling low-power sensor subsystems (e.g., MEMS accelerometer, humidity IC) only after main 3.3V rail is stable and system watchdog is armed. IC Role / Device Role / Timing Role: Sequencing supervisor that gates sensor power via external MOSFET, triggered by monitored 3.3V rail and host MCU ENABLE signal. Use Value: Reduces system standby current by >95% - critical for battery-operated IoT nodes with multi-year lifetime requirements. |
Use Scenario: Monitoring 5V and 12V supplies in a vehicle BCM to detect undervoltage conditions and initiate safe shutdown of non-critical loads. IC Role / Device Role / Timing Role: Dual-rail supervisor using two MAX6897PALT/GG8 devices - one per rail - feeding OR'd open-drain outputs to a central fault controller. Use Value: Provides AEC-Q100-aligned reliability and 28V tolerance for direct 12V battery monitoring - avoids external clamping diodes and saves BOM cost. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage supervisory sequencing applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6897AALT+ | Capacitor-adjustable IN-to-OUT delay (tDELAY = CCDELAY × 4.0×10⁶ + 40µs); same 0.5V threshold, open-drain output, and µDFN package. | Used where programmable delay (e.g., 10ms–500ms) is required to accommodate varying rail ramp times; unsuitable for fixed-timing-critical paths. | Select MAX6897AALT+ if delay must be tuned per board design; choose MAX6897PALT/GG8 when deterministic, zero-component, low-jitter timing is mandatory. |
| TLV803EB25DBVR | Fixed 2.5V threshold, push-pull output, no enable input, 350ms typical reset timeout, SOT-23-3 package. | Single-rail reset generator only - lacks sequencing, adjustable threshold, enable control, or open-drain flexibility. | Use TLV803EB25DBVR for simple, low-cost single-rail reset; MAX6897PALT/GG8 is required for multi-rail sequencing, sub-1V monitoring, or 28V-level shifting. |
Compared with MAX6897AALT+, MAX6897PALT/GG8 trades delay programmability for guaranteed 150ns timing accuracy and reduced component count; versus TLV803EB25DBVR, it delivers configurable threshold, enable control, open-drain versatility, and true sequencing capability - making it indispensable for complex power architectures.
Availability
MAX6897PALT/GG8 is available at Aetrix Electronics and suitable for automotive body control modules, industrial sensor nodes, telecom power systems, and medical instrumentation requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX6897PALT/GG8 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 demanding industrial, automotive, and communications applications - emphasizing reliability, small size, and low power.
The MAX6897PALT/GG8 belongs to the MAX6895–MAX6899 family of ultra-small supervisory sequencers, engineered specifically for deterministic, low-voltage power-rail coordination in space- and power-constrained embedded systems.
FAQ
What is the exact function of the CDELAY pin on the MAX6897PALT/GG8?
The CDELAY pin on the MAX6897PALT/GG8 is internally connected to a fixed 250nA current source but is functionally unused in the P-version. Unlike A-variants, MAX6897PALT/GG8 does not use CDELAY for timing - its enable-to-output delay is fixed at 150ns. The pin must still be connected to GND per layout guidelines to ensure stable operation and avoid noise coupling.
Does MAX6897PALT/GG8 support direct 12V rail monitoring?
No - MAX6897PALT/GG8 monitors only the IN pin voltage, which has a fixed 0.5V threshold. To monitor a 12V rail, an external resistive divider (e.g., R1 = 23MΩ, R2 = 1MΩ) must scale 12V down to 0.5V at IN. The device itself does not accept >5.5V on any pin except the 28V-tolerant OUT pin when used open-drain with external pullup.
Can MAX6897PALT/GG8 replace MAX6897AALT+ without hardware changes?
No - while both share identical pinout, package, and electrical interface, MAX6897PALT/GG8 replaces capacitor-based delay with fixed 150ns propagation. Removing the CDELAY capacitor from a MAX6897AALT+ design will cause functional failure. Hardware revision is required to eliminate the timing capacitor and validate timing margins with the fixed delay.
What is the maximum sink current capability of the MAX6897PALT/GG8 open-drain output?
The MAX6897PALT/GG8 open-drain output guarantees sinking ≥90µA with VOL ≤0.3V when VCC ≥1.2V. At higher VCC (≥4.5V), it can sink up to 1mA with VOL ≤0.4V. Actual sink current depends on external pullup voltage and resistor value - e.g., with 28V pullup and 100kΩ resistor, max sink is ~280µA.
Is MAX6897PALT/GG8 qualified for automotive applications?
Yes - MAX6897PALT/GG8 is manufactured in an automotive-grade flow and fully specified over -40°C to +125°C. While not explicitly labeled "AEC-Q100" in its part number suffix (unlike MAX6897AAZT/V+), its electrical characteristics, packaging, and qualification testing align with AEC-Q100 stress requirements for Grade 1 and Grade 0 applications per Maxim's internal automotive release process.
MAX6897PALT/GG8 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 6-WFDFN
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Sequencer
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- Adjustable/Selectable
- Output:
- Open Drain or Open Collector
- Reset:
- Active High
- Reset Timeout:
- Adjustable/Selectable
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-µDFN (1.5x1)
MAX6897PALT/GG8 FAQ
1.How can I place an order for MAX6897PALT/GG8 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6897PALT/GG8 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 MAX6897PALT/GG8 reliable?
The price and inventory of MAX6897PALT/GG8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6897PALT/GG8 is usually 5 days.
3.What payment methods are accepted for MAX6897PALT/GG8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6897PALT/GG8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6897PALT/GG8?
MAX6897PALT/GG8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6897PALT/GG8 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 MAX6897PALT/GG8?
For technical support, including MAX6897PALT/GG8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6897PALT/GG8 requirements.
6.How does Aetrix verify that MAX6897PALT/GG8 is sourced from the original manufacturer or authorized distributors?
All MAX6897PALT/GG8 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 MAX6897PALT/GG8 meets industry standards.
7.What is the process for return or replacement of MAX6897PALT/GG8?
All MAX6897PALT/GG8 units undergo pre-shipment inspection (PSI). If there is an issue with MAX6897PALT/GG8, 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 MAX6897PALT/GG8 part is unused and in its original packaging.
Return procedure for MAX6897PALT/GG8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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