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Technical Specifications
Parameters and characteristics for this part
| Specification | TPS3838E18DBVTG4 |
|---|---|
| Mounting Type | Surface Mount |
| Number of Voltages Monitored | 1 |
| Operating Temperature [Max] | 85 °C |
| Operating Temperature [Min] | -40 °C |
| Output | Open Drain or Open Collector |
| Package / Case | SC-74A, SOT-753 |
| Reset | Active Low |
| Supplier Device Package | SOT-23-5 |
| Type | Simple Reset/Power-On Reset |
| Voltage - Threshold | 1.71 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Tape & Reel (TR) | 250 | $ 2.43 | |
| 500 | $ 2.18 | |||
| 1250 | $ 1.84 | |||
| 2500 | $ 1.75 | |||
Description
General part information
TPS3838-Q1 Series
The TPS3836, TPS3837, and TPS3838 device families of supervisory circuits provide circuit initialization and timing supervision, primarily for digital signal processors (DSP) and processor-based systems.
During power-on,RESETis asserted when the supply voltage VDDbecomes higher than 1.1 V. Thereafter, the supervisory circuit monitors VDDand keeps theRESEToutput active as long as VDDremains below the threshold voltage of VIT. An internal timer delays the return of the output to the inactive state (high) to ensure proper system reset. The delay time starts after VDDrises above the threshold voltage VIT.
When CT is connected to GND, a fixed delay time of typically 10 ms is asserted. When connected to VDD, the delay time is typically 200 ms. When the supply voltage drops below the threshold voltage VIT, the output becomes active (low) again. All the devices of this family have a fixed-sense threshold voltage (VIT) set by an internal voltage divider.
Documents
Technical documentation and resources
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