Analog Devices Inc. ADM6384YKS29D3-RL7

Overview

ADM6384YKS29D3-RL7 from Analog Devices is a precision microprocessor supervisory circuit in 4-lead SC70 package, featuring a 2.93 V reset threshold, 140 ms minimum reset timeout, active-low push-pull RESET output, and manual reset (MR) input. It monitors VCC in embedded systems to prevent erroneous code execution during power-up, brownout, or transient events, and guarantees valid reset assertion down to VCC = 1 V.

For engineers reviewing the ADM6384YKS29D3-RL7 datasheet, ADM6384YKS29D3-RL7 pinout, ADM6384YKS29D3-RL7 application, or ADM6384YKS29D3-RL7 equivalent, key selection criteria include reset threshold accuracy (±2% over −40°C to +125°C), glitch-immune MR input with 100 ns rejection, low 7 µA typical supply current at 2.5 V, and guaranteed reset validity across full industrial temperature range.

Technical Context

The ADM6384YKS29D3-RL7 implements a precision bandgap-based voltage reference and comparator architecture to detect VCC falling below 2.93 V with 60 ppm/°C temperature coefficient. Its internal debounce logic ensures MR pulses as short as 1 µs trigger a full reset cycle, while integrated glitch rejection ignores transients ≤100 ns on MR and suppresses false resets from fast VCC dips.

Reset assertion timing follows a deterministic sequence: VCC-to-RESET delay is 35 µs (typical) when VCC falls through threshold; after VCC rises above threshold, RESET remains asserted for exactly the selected timeout period (140 ms min). The push-pull output drives low to 0.3 V at 1.2 mA sink current, enabling direct interface with microcontroller reset inputs without external pull-down.

Key Specifications

Pinout & Package

ADM6384YKS29D3-RL7 is housed in a 4-lead SC70 (KS-4) package measuring 2.20 mm × 1.35 mm × 0.95 mm, optimized for space-constrained PCB layouts in portable and automotive modules.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAX6326UT29D3+T and TPS3808G33DBVR, the ADM6384YKS29D3-RL7 uniquely combines precise 2.93 V threshold, integrated MR with debounce, push-pull output, and full industrial temperature support in a 4-pin SC70 - making it optimal for compact, manually serviceable, brownout-sensitive embedded designs.

Availability

ADM6384YKS29D3-RL7 is available at Aetrix Electronics and suitable for industrial PLC controllers, automotive body control modules, medical infusion pumps, and wireless sensor nodes requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for ADM6384YKS29D3-RL7 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 leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets since 1965.

The ADM6384 family delivers precision, low-power microprocessor supervision for mission-critical embedded systems where deterministic reset behavior under voltage transients and extreme temperatures is non-negotiable.

FAQ

What is the exact reset threshold voltage of ADM6384YKS29D3-RL7?

The ADM6384YKS29D3-RL7 has a nominal reset threshold of 2.93 V, with a guaranteed range of 2.85 V to 3.00 V at TA = −40°C to +125°C. This value is factory-trimmed and specified in Table 1 of the Rev. E datasheet under the "ADM6384x29x" row. The threshold exhibits 60 ppm/°C temperature coefficient, ensuring stability across its full operating range.

Does ADM6384YKS29D3-RL7 support manual reset functionality?

Yes, ADM6384YKS29D3-RL7 includes a dedicated MR (Manual Reset) input (Pin 3) that is active-low and internally pulled up with 52 kΩ. Driving MR low for ≥1 µs initiates a full reset cycle with the configured 140 ms timeout. The input rejects glitches <100 ns and is compatible with 1.8 V–5 V logic levels per its VIL/VIH specifications.

What is the supply current consumption of ADM6384YKS29D3-RL7 at 2.5 V?

At VCC = 2.5 V and TA = 25°C, ADM6384YKS29D3-RL7 consumes 4 µA (min), 7 µA (typ), and 7 µA (max) - with 7 µA typical being the design-relevant value for low-power budgeting. This current remains stable across temperature, dropping slightly to ~6 µA at −40°C and rising to ~7.5 µA at +125°C per Figure 4.

Can ADM6384YKS29D3-RL7 guarantee valid reset output when VCC drops below 1.5 V?

Yes, ADM6384YKS29D3-RL7 guarantees RESET output validity down to VCC = 1 V. Its push-pull output sinks 80 µA with VOL ≤ 0.3 V at VCC ≥ 1.0 V, and 1.2 mA with VOL ≤ 0.3 V at VCC ≥ 2.5 V. This ensures robust reset signaling even during deep brownout conditions common in battery-backed systems.

What package type and dimensions does ADM6384YKS29D3-RL7 use?

ADM6384YKS29D3-RL7 uses a 4-lead SC70 (KS-4) package per EIAJ SC82 outline, measuring 2.20 mm × 1.35 mm × 0.95 mm. Pin 1 indicator is marked by a dot; lead pitch is 0.65 mm. This ultra-small footprint is ideal for space-constrained applications such as wearables and automotive sensors.