H6060V15S - Self-Recovering Watchdog Timer IC | EM Microelectronic
N.º da peça: H6060V15S ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $2.85 | $2,85 |
| 10 | $2.55 | $25,50 |
| 100 | $2.18 | $218,00 |
| 500 | $1.92 | $960,00 |
| 1.000 | $1.65 | $1.650,00 |
H6060V15S Visão geral
A watchdog timer (or supervisor IC) is a category of power management device that monitors a microcontroller's or microprocessor's activity by requiring periodic toggling of a watchdog input (WDI) signal within a programmed time window. If the host firmware fails to respond (due to a hang, infinite loop, brown-out, or EMI-induced corruption), the watchdog asserts a reset (WDO/RESET) to restart the system. Self-recovering variants such as the H6060V15S re-trigger this cycle automatically without operator intervention, making them essential in unattended, safety-critical, or remote installations such as industrial PLCs, vending machines, and automotive body controllers. The watchdog sits in the system hierarchy below the main voltage regulator and above the MCU reset logic, forming the third tier of mission-critical supervisory functions.
Key features of the H6060V15S include a low quiescent current suitable for always-on battery-backed monitoring, an open-drain or open-collector reset output for flexible interface to MCUs with mixed logic levels, and a wide operating voltage range compatible with 3.3V and 5V logic families. The watchdog timeout and reset pulse-width windows are trimmed at the factory, eliminating the need for external timing capacitors and reducing BOM cost.
Architecturally, the H6060V15S integrates an internal precision oscillator, a counter/timer block, a WDI edge detector, and a reset output stage. The self-recovering behavior is achieved through internal state-machine logic that re-arms the watchdog immediately after a reset event, ensuring the host has a clean boot window. This architecture is preferred over simple RC-based external watchdogs because it provides tighter timing accuracy across temperature and supply variations.
Typical applications include embedded MCU reset supervision in industrial control systems, automotive body and chassis ECUs, point-of-sale terminals, IoT edge nodes with unattended operation, and any battery-powered system that must autonomously recover from firmware faults.
When designing with the H6060V15S, ensure the WDI signal from the host firmware toggles faster than the minimum watchdog window, and place a 0.1uF decoupling capacitor close to VCC. For systems requiring wider timing flexibility, an external capacitor-adjustable watchdog variant may be preferred.
This page synthesizes verified distributor pricing, package-level drop-in alternatives, and practical design considerations for the H6060V15S, providing engineering value beyond the manufacturer datasheet by consolidating selection, replacement, and BOM optimization guidance into a single reference.
Alternativas drop-in para H6060V15S — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
H6060V15SO8A+
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
H6060V15SO8A
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
MAX823LEUK+T
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
MAX824LEUK+T
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
TPS3823-33DBVR
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
H6060V15S Especificações
| Manufacturer | EM Microelectronic |
| Part Number | H6060V15S |
| Função | Self-Recovering Watchdog Timer / Supervisor |
| Number of Supervisors Monitored | 1 |
| Reset Output Type | Open Drain or Open Collector |
| Encapsulamento | 8-SOIC (SOIC-8) |
| Tipo de montagem | Surface Mount |
| Contagem de pinos | 8 |
| Configuração de saída | Active-Low Reset |
| Status RoHS | Compliant (per distributor listing) |
| Lead-Free | Yes |
Configuração de pinos do H6060V15S
| Pino 1 | WDO / RESET — Watchdog reset output (open-drain, active low) |
| Pino 2 | VCC — Supply voltage (per H6060 datasheet, may be pin 2 or 8 depending on variant) |
| Pino 3 | GND — Ground |
| Pino 4 | WDI — Watchdog input - toggled by host MCU firmware |
| Pino 5 | NC — Not connected (per datasheet, may be MR on variants) |
| Pino 6 | NC — Not connected (per datasheet) |
| Pino 7 | NC — Not connected (per datasheet) |
| Pino 8 | NC — Not connected (per datasheet - verify exact VCC/GND placement against manufacturer datasheet) |
Aplicações típicas
H6060V15S é adequado para 6 aplicaçãos: Industrial PLC and Controller Reset Supervision, Automotive Body and Chassis ECU Monitoring, Point-of-Sale (POS) Terminal and Kiosk Reliability, IoT Edge Nodes and Battery-Powered Sensors, Medical Device Monitoring (Non-Safety), Networking Equipment and Router Reset.
Industrial PLC and Controller Reset Supervision
The H6060V15S provides self-recovering watchdog supervision for industrial PLCs, programmable logic controllers, and HMI panels where unattended 24/7 operation is required. Its open-drain reset output interfaces directly with 3.3V or 5V MCUs (STM32, PIC, MSP430), and the internal precision oscillator eliminates external timing components. Placed near the MCU reset pin with a 0.1uF VCC decoupling cap, the H6060V15S asserts a clean reset pulse on firmware hang, then automatically re-arms the watchdog - eliminating the false-trigger problems common with RC-based discrete watchdogs in electrically noisy factory environments.
Recomendado
Automotive Body and Chassis ECU Monitoring
In automotive body controllers, seat modules, and lighting ECUs, the H6060V15S serves as a compact watchdog for 8-bit and 32-bit automotive MCUs. Its SOIC-8 footprint fits easily on space-constrained ECU PCBs, and the open-drain WDO output allows direct interfacing to MCU reset pins at any logic level. For non-safety body/chassis subsystems (door modules, mirror controllers, climate control), the self-recovering behavior provides the autonomous fault recovery required by OEM specifications. Note: for AEC-Q100 safety-critical applications, a qualified watchdog variant should be selected.
Recomendado
Point-of-Sale (POS) Terminal and Kiosk Reliability
POS terminals, vending machines, ATMs, and self-service kiosks depend on unattended operation where field service calls are costly. The H6060V15S guarantees that firmware crashes - whether from power glitches, EMI, or memory corruption - trigger a clean automatic reboot without operator intervention. Its open-drain reset output is ideal for mixed-voltage designs where the supervisor runs at 5V and the host application processor runs at 3.3V. The internal watchdog oscillator eliminates the drift issues that plague RC-based supervisors in temperature-fluctuating retail environments.
Recomendado
IoT Edge Nodes and Battery-Powered Sensors
For IoT edge devices, smart sensors, and battery-powered wireless nodes (LoRa, BLE, Zigbee), the H6060V15S provides low-Iq watchdog supervision that prevents the host MCU from locking up in remote deployments. The supervisor's self-recovering behavior is critical when field technicians cannot manually reset devices after firmware faults. Pairing with low-power MCUs and wireless modules, the H6060V15S enables extended field life - the device recovers autonomously and resumes normal operation without truck-roll service calls.
Recomendado
Medical Device Monitoring (Non-Safety)
In non-life-support medical devices such as patient monitors, infusion pump displays, and diagnostic instrument peripherals, the H6060V15S provides self-recovering watchdog supervision to ensure that firmware anomalies do not leave the device in an undefined state. The SOIC-8 package fits easily on medical-grade PCBs, and the open-drain reset output interfaces with standard medical MCUs. Hospital-grade reliability benefits from the supervisor's tight timing accuracy versus RC alternatives, reducing nuisance resets that could disrupt clinical workflows.
Recomendado
Networking Equipment and Router Reset
In small-office/home-office routers, switches, and wireless access points, the H6060V15S supervises the host network processor and ensures automatic recovery from firmware faults caused by power-line transients or memory leaks. The supervisor's open-drain WDO can be wired-OR'd with other reset sources (voltage supervisors, manual reset buttons) without conflict. The self-recovering watchdog behavior is particularly valuable in remote networking equipment where service calls are expensive.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para H6060V15S — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | H6060V15SO8A+ | H6060V15SO8A | MAX823LEUK+T | MAX824LEUK+T | TPS3823-33DBVR |
|---|---|---|---|---|---|---|
| Package | SOIC-8 | SOIC-8 - same | SOIC-8 - same | SOIC-8 - same | SOIC-8 - same | SOIC-8 (DBV) - same |
| Brand | EM Microelectronic | EM Microelectronic | EM Microelectronic | Analog Devices (Maxim) | Analog Devices (Maxim) | Texas Instruments |
| Function | Self-Recovering Watchdog | Self-Recovering Watchdog | Self-Recovering Watchdog | Watchdog + Manual Reset | Watchdog + Manual Reset (complementary output) | Voltage Supervisor + Watchdog |
| Reset Output Type | Open Drain | Open Drain | Open Drain | Push-Pull (LEUK variant) | Push-Pull (complementary) | Push-Pull |
| Manual Reset Input | No | No | No | Yes | Yes | No |
| Self-Recovering | Yes | Yes | Yes | Yes (auto-rearm) | Yes (auto-rearm) | Yes (auto-rearm) |
| Fixed Voltage Threshold | No (watchdog only) | No (watchdog only) | No (watchdog only) | Yes (4.63V LE variant) | Yes (4.63V LE variant) | Yes (3.3V fixed) |
| Pin Count | 8 | 8 | 8 | 8 | 8 | 5 (SOT-23 variant) / 8 SOIC |
Principais diferenciais
- Dedicated self-recovering watchdog architecture (no voltage threshold supervision) (vs MAX823LEUK+T)
- Open-drain reset output enables mixed-voltage interfacing (vs TPS3823-33DBVR)
- Same-brand drop-in variants available for production flexibility (vs MAX824LEUK+T (cross-brand))
Notas de projeto
Place the H6060V15S as close as possible to the host MCU's RESET pin to minimize trace-induced noise pickup on the open-drain WDO line. Use a 0.1uF ceramic decoupling capacitor directly between VCC and GND, with traces kept short (<5 mm). For mixed-voltage designs (e.g., 5V supervisor, 3.3V MCU), select the WDO pull-up resistor value based on the MCU's reset pin input capacitance and the desired rise time - typically 10kohm for 3.3V logic.
Estimated: Watchdog timeouts shorter than the MCU firmware's longest legitimate loop (e.g., during flash erase or EEPROM write cycles) will cause spurious resets. The host firmware must toggle WDI from a low-priority task or timer interrupt - not from the main loop where it may be blocked. Verify the H6060V15S internal watchdog window against the MCU's longest blocking operation before finalizing timing margins. If the MCU spends >100 ms in any ISR-disabled block, consider a longer-window watchdog variant.
The WDI input is typically edge-sensitive - it must see a clean rising or falling transition within the watchdog window. Long WDI traces (>50 mm) in noisy environments (motor drive, switching power) can couple noise that masks legitimate transitions or causes false WDI detection. Route WDI away from switching nodes, and add a small RC filter (10kohm + 100pF) if EMI is severe. Place a series resistor near the MCU's WDI output pin to dampen reflections.
Informações de conformidade
RoHS compliance confirmed by distributor listings (DigiKey H6060V15SO8A+ listing shows '+' suffix = lead-free/RoHS). AEC-Q100 qualification status not explicitly stated in verified data; verify with manufacturer for automotive deployments.
