TPS3808G125是TI公司的一款无产品，TPS3808G125是Low Quiescent Current, Programmable-Delay Supervisory Circuit，本页介绍了TPS3808G125的产品说明、应用、特性等，并给出了与TPS3808G125相关的TI元器件型号供参考。
TPS3808G125 - Low Quiescent Current, Programmable-Delay Supervisory Circuit - 无 - 监控器和复位IC - TI公司（Texas Instruments，德州仪器）
- Power-On Reset Generator with Adjustable Delay Time: 1.25 ms to 10 s
- Very Low Quiescent Current: 2.4 μA Typical
- High Threshold Accuracy: 0.5% Typ
- Fixed Threshold Voltages for Standard Voltage Rails from 0.9 V to 5 V and Adjustable Voltage Down to 0.4 V Are Available
- Manual Reset (MR) Input
- Open-Drain RESET Output
- Temperature Range: –40°C to 125°C
- Small SOT-23 and 2-mm × 2-mm WSON Packages
- DSP or Microcontroller Applications
- Notebook and Desktop Computers
- PDAs and Hand-Held Products
- Portable and Battery-Powered Products
- FPGA and ASIC Applications
The TPS3808 family of microprocessor supervisory circuits monitors system voltages from 0.4V to 5V, asserting an open-drain RESET signal when the SENSE voltage drops below a preset threshold or when the manual reset (MR) pin drops to a logic low. The RESET output remains low for the user-adjustable delay time after the SENSE voltage and manual reset (MR) return above the respective thresholds.
The TPS3808 device uses a precision reference to achieve 0.5% threshold accuracy for VIT≤ 3.3 V. The reset delay time can be set to 20ms by disconnecting the CT pin, 300ms by connecting the CT pin to VDD using a resistor, or can be user-adjusted between 1.25ms and 10s by connecting the CT pin to an external capacitor. The TPS3808 device has a very low typical quiescent current of 2.4μA, so it is well-suited to battery-powered applications. It is available in the SOT-23 and 2-mm × 2-mm WSON packages, and is fully specified over a temperature range of –40°C to 125°C (TJ).
| PART NUMBER | PACKAGE | BODY SIZE (NOM) |
|---|---|---|
| TPS3808 | SOT-23 (6) | 2.90 mm x 1.60 mm |
| WSON (6) | 2.00 mm x 2.00 mm |
