TPS3851H18EDRBT
ActiveHIGH-ACCURACY VOLTAGE SUPERVISOR WITH INTEGRATED WATCHDOG TIMER
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TPS3851H18EDRBT
ActiveHIGH-ACCURACY VOLTAGE SUPERVISOR WITH INTEGRATED WATCHDOG TIMER
Technical Specifications
Parameters and characteristics for this part
| Specification | TPS3851H18EDRBT |
|---|---|
| Mounting Type | Surface Mount |
| Number of Voltages Monitored | 1 |
| Operating Temperature [Max] | 125 ¯C |
| Operating Temperature [Min] | -40 °C |
| Output | Open Drain or Open Collector |
| Package / Case | 8-VDFN Exposed Pad |
| Reset | Active Low |
| Reset Timeout | 170 ms |
| Supplier Device Package | 8-SON (3x3) |
| Type | Simple Reset/Power-On Reset |
| Voltage - Threshold | 1.8 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Cut Tape (CT) | 1 | $ 2.47 | |
| 10 | $ 2.22 | |||
| 25 | $ 2.10 | |||
| 100 | $ 1.79 | |||
| Digi-Reel® | 1 | $ 2.47 | ||
| 10 | $ 2.22 | |||
| 25 | $ 2.10 | |||
| 100 | $ 1.79 | |||
| Tape & Reel (TR) | 250 | $ 1.68 | ||
| 500 | $ 1.47 | |||
| 1250 | $ 1.22 | |||
| 2500 | $ 1.13 | |||
| 6250 | $ 1.09 | |||
| Texas Instruments | SMALL T&R | 1 | $ 2.05 | |
| 100 | $ 1.58 | |||
| 250 | $ 1.16 | |||
| 1000 | $ 0.83 | |||
Description
General part information
TPS3851-Q1 Series
The TPS3851-Q1 device combines a precision voltage supervisor with a programmable watchdog timer. The TPS3851-Q1 comparator achieves a 0.8% accuracy (–40°C to +125°C) for the undervoltage (VITN) threshold on the VDD pin. The TPS3851-Q1 also includes accurate hysteresis on the undervoltage threshold making the device ideal for use with tight tolerance systems. The supervisorRESETdelay features a 15% accuracy, high-precision delay timing.
The TPS3851-Q1 includes a programmable watchdog timer for a wide variety of applications. The dedicated watchdog output (WDO) enables increased resolution to help determine the nature of fault conditions. The watchdog timeouts can be programmed either by an external capacitor, or by factory-programmed default delay settings. The watchdog can be disabled via logic pins to avoid undesired watchdog timeouts during the development process.
The TPS3851-Q1 is available in a small 3.00-mm × 3.00-mm, 8-pin VSON package. The TPS3851-Q1 features wettable flanks that allow for easy optical inspection.
Documents
Technical documentation and resources
