Analog Devices Inc. ADM6384YKS31D1Z-R7

Overview

ADM6384YKS31D1Z-R7 from Analog Devices is a precision microprocessor supervisory circuit in 4-lead SC70 package, monitoring VCC with 3.08 V reset threshold, 1 ms minimum reset timeout, and guaranteed active-low push-pull RESET output valid down to VCC = 1 V. It features manual reset input (MR), 7 µA typical supply current at 2.5 V, and operates across −40°C to +125°C for embedded control and portable systems.

For engineers reviewing the ADM6384YKS31D1Z-R7 datasheet, ADM6384YKS31D1Z-R7 pinout, ADM6384YKS31D1Z-R7 application, or ADM6384YKS31D1Z-R7 equivalent, key selection criteria include reset threshold accuracy (±2% over temperature), glitch immunity against sub-100 ns MR transients, VCC-to-RESET delay of 35 µs, and compatibility with low-voltage microcontrollers requiring robust brownout detection.

Technical Context

The ADM6384YKS31D1Z-R7 implements a precision bandgap-based voltage reference and comparator to detect VCC falling below 3.08 V (typical), with 60 ppm/°C temperature coefficient and 2 × VTH hysteresis. Its internal debounce logic ensures reliable MR assertion even with mechanical switch bounce.

Reset timing is governed by a fixed-duration timeout generator: after VCC rises above threshold or MR releases, RESET remains asserted for ≥1 ms before deassertion. The push-pull output drives low with 0.3 V max VOL at 1.2 mA sink, eliminating need for external pull-down resistors in most designs.

Key Specifications

Pinout & Package

ADM6384YKS31D1Z-R7 is housed in a 4-lead SC70 (KS-4) package, measuring 2.20 mm × 1.35 mm × 0.9 mm, with 0.65 mm lead pitch and coplanarity ≤ 0.10 mm. This RoHS-compliant, surface-mount package enables high-density PCB layouts in space-constrained portable and automotive modules.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar microprocessor supervisory applications.

Compared with MAX6384XR31D1+T and TPS3808G30DBVR, ADM6384YKS31D1Z-R7 delivers superior thermal range coverage, lower supply current at low VCC, and true push-pull RESET output-enabling simpler, more robust designs in automotive and industrial edge nodes.

Availability

ADM6384YKS31D1Z-R7 is available at Aetrix Electronics and suitable for industrial PLC controllers, automotive body control modules, and portable medical monitors requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for ADM6384YKS31D1Z-R7 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

Analog Devices, Inc. is a global semiconductor company specializing in high-performance analog, mixed-signal, and digital signal processing technologies for precision measurement and control systems.

The ADM6384 product line delivers highly accurate, low-power microprocessor supervisory circuits optimized for reliability-critical applications in automotive, industrial, and portable electronics where voltage monitoring integrity is non-negotiable.

FAQ

What is the exact reset threshold voltage of ADM6384YKS31D1Z-R7 across temperature?

The ADM6384YKS31D1Z-R7 has a nominal reset threshold of 3.08 V, with guaranteed min/max values of 3.00 V and 3.15 V over the full −40°C to +125°C operating range. Its 60 ppm/°C temperature coefficient ensures predictable drift, and Figure 7 in the datasheet confirms normalized threshold variation stays within ±5% across temperature.

Does ADM6384YKS31D1Z-R7 require an external pull-up resistor on the RESET pin?

No, ADM6384YKS31D1Z-R7 does not require an external pull-up resistor because it features a push-pull RESET output stage. The output actively drives low (≤0.3 V at 1.2 mA) and high (≥0.8 × VCC), eliminating reliance on external components for logic-level definition and ensuring valid reset signaling down to VCC = 1 V.

How does the manual reset (MR) input behave when left unconnected?

When left unconnected, the MR input of ADM6384YKS31D1Z-R7 remains reliably high due to its integrated 52 kΩ internal pull-up resistor. This prevents spurious resets and allows direct connection of a momentary switch between MR and GND-no external resistor is needed to implement a functional manual reset button.

Can ADM6384YKS31D1Z-R7 monitor supply rails below 1.8 V?

Yes, ADM6384YKS31D1Z-R7 supports VCC as low as 1 V, with full functionality including reset assertion and MR input detection. At VCC = 1.8 V, supply current is 3–6 µA (typ/max), and RESET output remains valid-making it suitable for monitoring low-voltage rails such as those derived from single-cell Li-ion or energy-harvesting sources.

What is the maximum transient duration ADM6384YKS31D1Z-R7 can reject on the VCC line?

ADM6384YKS31D1Z-R7 rejects fast VCC transients based on overdrive magnitude and duration. For its 3.08 V threshold, Figure 10 shows that a 100 mV dip (to 2.98 V) lasting ≤8 µs typically avoids reset assertion. Transients exceeding this envelope-either deeper or longer-will trigger reset, providing configurable immunity without external RC filtering.