TPS3431 Texas instruments

TPS3431

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TPS3431

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Описание

The TPS3431 is a standard programmable watchdog timer with an enable feature for a wide variety of applications. The watchdog timeout features a 15% accuracy, high-precision timing (–40°C to +125°C) and 2.5% typical at 25°C. The watchdog timeout can be programmed either by an external capacitor, or by factory-programmed default delay settings. The watchdog can be disabled via the Enable pin or the SET logic pins to avoid undesired watchdog timeouts during the development process.The TPS3431 is available in a small 3.00-mm × 3.00-mm, 8-pin VSON package.

Factory-programmed precision watchdog timers:
- ±2.5% Accurate watchdog timeout (WDT) typical at 25°C
Watchdog disable feature
User-programmable watchdog timeout
Input voltage range: V_DD = 1.8 V to 6.5 V
Low quiescent current: I_DD = 10 µA (typical)
Active-low open-drain output
Enable input (EN) and enable output (ENOUT)
Available in a small 3-mm × 3-mm, 8-pin VSON package
Junction operating temperature range: –40°C to +125°C

Features	Watchdog disable, Watchdog timer
Reset threshold accuracy (%)	0
Iq (typ) (mA)	0.01
Output driver type/reset output	Active-low, Open-drain
Time delay (ms)	200
Supply voltage (min) (V)	1.8
Supply voltage (max) (V)	6.5
Rating	Catalog
Watchdog timer WDI (s)	Programmable
Operating temperature range (°C)	-40 to 125