H6060V15SO8 - Self-Recovering Watchdog Supervisor | EM Microelectronic
MPN： H6060V15SO8 ✓ 啟用中H6060V15SO8 概覽
Background Knowledge: A watchdog supervisor is a specialized power management integrated circuit (PMIC) that observes the host processor's execution flow. Unlike a simple voltage supervisor (reset IC) that only monitors VCC levels, a watchdog timer requires the firmware to periodically toggle a watchdog input (WDI) pin. If the firmware becomes stuck (infinite loop, crash, or lock-up), the supervisor issues a reset pulse to restart the system. A self-recovering watchdog additionally clears the underlying fault condition, allowing the system to come back online without manual intervention - critical for unattended or remote installations.
Key features of the H6060V15SO8 include a single-channel open-drain reset output, a low-threshold voltage detect circuit, and integrated self-recovery logic that prevents repeated fault cycling. The device is offered in an 8-pin SOIC package suitable for industrial temperature grade designs, and its open-drain output topology allows wired-OR connection with other system reset sources. The H6060V family is commonly deployed alongside main MCUs in safety-critical and industrial automation applications where a stuck firmware state must not lock the equipment permanently.
Architecturally, the H6060V15SO8 integrates a precision voltage reference, a windowed watchdog counter, and a self-recovery state machine on a single die. The supervisor's windowed watchdog requires WDI activity to occur inside a tight time window - too early or too late both generate a reset - providing stronger fault coverage than a traditional time-out watchdog. The self-recovery function monitors reset duration and, after a programmed recovery interval, automatically re-enables the host and resumes normal operation.
Typical applications include industrial PLC modules, building automation controllers, IoT edge nodes, automotive accessory modules, and embedded consumer devices where firmware hangs must be cleared without user intervention. The H6060V15SO8 is also used in feedback instrumentation and remote sensor platforms that must survive transient firmware faults caused by EMI or power-line glitches.
When designing with the H6060V15SO8, follow the manufacturer's recommended capacitor selection on the VCC pin and observe the maximum WDI pulse-width timing budget in the datasheet. Because the reset output is open-drain, an external pull-up resistor to the system logic supply is required; verify the resistor value against the system's rise-time requirements.
This page synthesizes distributor pricing, package-marking cross-reference (MMP301 and H6060V15SO8A/B variants), and practical design notes not aggregated in the manufacturer datasheet.
直接替換替代品，適用於 H6060V15SO8 — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： H6060V15SO8 （相同外形與佔位） — 差異在於 Function, Package, RoHS Status.
H6060V15SO8A+
✅ 直接替換📋 參考替代品（不在目錄中）
H6060V15SO8B+
✅ 直接替換聯絡詢價
查看資料表 →H6060V15SO8A
✅ 直接替換📋 參考替代品（不在目錄中）
H6060V15SO8B
✅ 直接替換📋 參考替代品（不在目錄中）
H6060V15SO8 規格
| 功能 | Self-Recovering Watchdog Supervisor |
| Number of Supervisors Monitored | 1 |
| 輸出類型 | Open Drain or Open Collector |
| Reset Output Channels | 1 |
| 封裝 | 8-SOIC |
| 安裝類型 | Surface Mount |
| Watchdog Type | Self-Recovering (windowed) |
| RoHS 狀態 | Compliant |
H6060V15SO8 腳位配置
| 腳位 1 | VCC — Supply voltage input |
| 腳位 2 | GND — Ground |
| 腳位 3 | WDI — Watchdog input from host MCU |
| 腳位 4 | MR — Manual reset input |
| 腳位 5 | NC — Not connected (per datasheet) |
| 腳位 6 | RESET — Open-drain reset output (active low) |
| 腳位 7 | SRT — Self-recovery timing capacitor |
| 腳位 8 | NC — Not connected (per datasheet) |
典型應用
H6060V15SO8 適用於 6 應用s: Industrial PLC Module Supervision, Building Automation Controller, IoT Edge Node / Remote Sensor, Automotive Accessory Module, Embedded Consumer Device Reset Control, Test & Measurement Instrumentation.
Industrial PLC Module Supervision
The H6060V15SO8's self-recovering watchdog function makes it ideal for industrial PLC modules that must auto-clear firmware hangs without a service call. When the host MCU fails to toggle WDI inside the programmed window, the H6060V15SO8 asserts the open-drain reset and runs its internal recovery cycle before re-enabling the host - a critical behavior for unattended PLCs on factory floors. The 8-SOIC package fits the same PCB land pattern as legacy 8-SOIC supervisors, easing retrofits. Pair it with a 100kΩ pull-up on /RESET to the 3.3V logic rail and a 100nF decoupling cap on VCC, per the EM Microelectronic H6060V family datasheet.
推薦
Building Automation Controller
HVAC and building-automation controllers often run unattended for years, so a self-recovering watchdog like the H6060V15SO8 prevents lock-ups caused by firmware bugs, brown-outs, or EMI. The open-drain reset can be wired-OR'd with other supervisor outputs in a multi-rail system. The 8-SOIC outline is small enough for thermostat and VAV-controller PCBs. The windowed watchdog detects both 'too-fast' and 'too-slow' WDI toggles - a stronger fault coverage than basic time-out watchdogs.
推薦
IoT Edge Node / Remote Sensor
Remote IoT edge nodes (agriculture sensors, pipeline monitors) cannot be power-cycled by a technician when firmware hangs. The H6060V15SO8's self-recovery cycle automatically clears the fault and resumes operation after the host stops toggling WDI. Its low quiescent current suits battery-backed edge nodes, and the 8-SOIC footprint allows compact PCBAs. Pair with a cellular or LoRa modem MCU that the H6060V15SO8 can supervise during LTE/LPWAN firmware transitions.
推薦
Automotive Accessory Module
Aftermarket automotive accessory modules (dash cams, OBD readers, LED light controllers) must survive firmware glitches caused by load-dump transients and crank-cold-start voltage dips. The H6060V15SO8 monitors the host MCU and recovers from lock-ups, keeping the accessory functional without driver intervention. Use the open-drain reset to drive the MCU's NRST pin through a level shifter. Validate the EM Microelectronic operating-temperature grade against the under-hood or cabin temperature range.
推薦
Embedded Consumer Device Reset Control
Smart appliances, point-of-sale terminals, and consumer electronics use the H6060V15SO8 to provide brown-out protection plus self-recovering firmware supervision. The single-channel open-drain output drives the host MCU's reset pin directly, and the 8-SOIC package is footprint-compatible with legacy reset-IC sockets, simplifying re-designs. For designs migrating from a basic voltage supervisor, the H6060V15SO8 adds watchdog coverage without increasing PCB area.
推薦
Test & Measurement Instrumentation
Bench-top instruments (data loggers, calibrators) must not freeze mid-test, so designers add the H6060V15SO8 to watch the host MCU. The self-recovery cycle clears a firmware fault and resumes logging without operator reset, preserving long-term test runs. The 8-SOIC package fits standard instrument PCBs and the open-drain reset can be combined with a manual reset button via wired-OR. The H6060V15SO8A+ RoHS-compliant variant is preferred for new designs shipping to the EU.
推薦
推薦產品摘要
工程參考資料，適用於 H6060V15SO8 — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | H6060V15SO8A+ | H6060V15SO8B+ | H6060V15SO8A | H6060V15SO8B |
|---|---|---|---|---|---|
| Package | 8-SOIC | 8-SOIC - same | 8-SOIC - same | 8-SOIC - same | 8-SOIC - same |
| Brand | EM Microelectronic | EM Microelectronic | EM Microelectronic | EM Microelectronic | EM Microelectronic |
| Function | Self-Recovering Watchdog Supervisor | Self-Recovering Watchdog Supervisor | Self-Recovering Watchdog Supervisor | Self-Recovering Watchdog Supervisor | Self-Recovering Watchdog Supervisor |
| Output Type | Open Drain | Open Drain | Open Drain | Open Drain | Open Drain |
| Number of Channels | 1 | 1 | 1 | 1 | 1 |
| RoHS / '+' Suffix | Non-'+' base marking | RoHS Pb-free (+) | RoHS Pb-free (+) | Non-'+' marking | Non-'+' marking |
| Datasheet Revision | Original (no A/B suffix) | A revision | B revision | A revision | B revision |
| Approx. Qty-1 Price (USD, as of 2026-10-08) | 0.85 | 0.85 - 0.95 | 0.85 - 0.95 | 0.06 - 0.11 (Alibaba bulk) | 0.06 - 0.11 (Alibaba bulk) |
主要差異化特點
- Self-recovering watchdog (windowed) vs. basic time-out watchdog (對比MAX823 family)
- Factory RoHS '+' suffix variants available (對比H6060V15SO8 (base marking))
- Single-channel open-drain reset for wired-OR stacking (對比H6060V (multi-channel variants in same family))
設計說明
Place a 100nF ceramic decoupling capacitor as close as possible to the VCC pin (pin 1) of the H6060V15SO8. The reset supervisor's voltage reference is sensitive to VCC ripple - any noise above the reset threshold can cause spurious reset assertions. For high-noise industrial environments (24V relay-coil systems), add a 10µF bulk capacitor in parallel and consider a ferrite bead on VCC.
Because the /RESET output is open-drain, an external pull-up resistor (typically 10kΩ to 100kΩ to the host MCU's logic rail) is mandatory. Forgetting the pull-up leaves the reset line floating and the host MCU never sees a defined reset state. Also verify the WDI watchdog window timing budget - if the host firmware services the watchdog too early or too late, the H6060V15SO8 will issue a reset, which is by design but is often misdiagnosed as a hardware fault.
The 8-SOIC land pattern accepts both 150-mil and 208-mil SOIC footprints if the pin-pitch matches (1.27 mm / 50-mil pitch). Place the H6060V15SO8 within 5 mm of the host MCU's NRST pin to minimize trace impedance. Keep the /RESET trace short and avoid routing it parallel to noisy switching traces (DC-DC inductor or motor-driver gate-drive signals) to avoid capacitive coupling that can false-trigger the reset.
合規資訊
RoHS compliance indicated by '+' suffix on H6060V15SO8A+/B+ variants. AEC-Q100 not stated in verified web data - validate for automotive designs. REACH, halogen-free, and conflict-mineral status not in verified web data.
