Low-quiescent current supervisor with programmable delay & manual reset
Product details
Parameters
Package | Pins | Size
Features
- 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
All trademarks are the property of their respective owners.
Description
The TPS3808 family of microprocessor supervisory circuits monitors system voltages from 0.4 V to 5 V, 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 20 ms by disconnecting the CT pin, 300 ms by connecting the CT pin to VDD using a resistor, or can be user-adjusted between 1.25 ms and 10 s by connecting the CT pin to an external capacitor. The TPS3808 device has a very low typical quiescent current of 2.4 µA, 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).
Same functionality but is not pin-for-pin or parametrically equivalent to the compared device:
Technical documentation
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Hardware development
Description
Features
- Plug and play design
- Input options for DSI video signal (QSH-type connector and FX-type connector)
- Output port options available for the LVDS output signals (QSH-type connector and I-PEX-type connector)
- I2C interface to configure internal registers
- LED backlight driver circuitry using TI's backlight (...)
Description
Features
- Plug and play design
- Two input options for DSI video signal (QSH-type connector and FX-type connector)
- Two output port options available for the LVDS output signals (QSH-type connector and I-PEX-type connector)
- I2C interface to configure internal registers
- LED backlight driver circuitry using TI's (...)
Description
Features
- Plug and play design
- Two input options for DSI video signal (QSH-type connector and FX-type connector)
- Two output port options available for the LVDS output signals (QSH-type connector and I-PEX-type connector)
- I2C interface to configure internal registers
- Incorporates LED backlight driver circuitry (...)
Description
Features
- DisplayPort connection for the source and HDMI connection for the sink
- The EVM can be powered by a 5-V wall power adapter external power or though Micro USB cable
- I2C communications for debug and control purposes
Description
The TPS3808G01DBVEVM is a fully assembled and tested circuit for evaluating the TPS3808G01 low quiescent current (IQ), programmable-delay supervisory circuit IC in the DBV or 6-pin SOT-23 package.
Features
- Power-on reset (POR) generator with adjustable delay time: 1.25 ms to 10 s
- Very-low quiescent current: 2.4 µA typical
- High threshold accuracy: 0.5% typical
- Fixed threshold voltages for standard voltage rails from 0.9 V to 5 V & adjustable voltage down to 0.4 V are available
- Manual reset (MR) input
- (...)
Description
Built on the proven BeagleBoard.org® open source Linux approach, BeagleBone® AI fills the gap between small SBCs and more powerful industrial computers. Based on the Texas Instruments, Sitara™ AM5729 processor, developers have access to a highly integrated and (...)
Description
The EVMK2GX (also known as "K2G") 1GHz evaluation module (EVM) enables developers to immediately start evaluating the 66AK2Gx processor family, and to accelerate the development of audio, industrial motor control, smart grid protection and other high reliability, real-time compute intensive (...)
Features
- 66AK2G12 C66x DSP+Arm Cortex-A15 processor at 1GHz
- 2-GByte DDR3L with ECC
- TPS65911A PMIC
- Audio and serial expansion headers
- Processor SDK Linux and TI-RTOS support
Description
The K2G 1GHz High Secure Evaluation Module (EVM) enables developers to start evaluating and testing the programming of the high secure developmental version of the 66AK2Gx processor, and to accelerate the next stage of secure boot product development of audio and industrial real (...)
Features
- 66AK2G12 C66x DSP+ARM A15 Processor at 1GHz
- 2-GByte DDR3L with ECC
- TPS65911A PMIC
- Audio and serial expansion headers
- Processor SDK Linux and TI-RTOS support
Software development
Design tools & simulation
Features
- Leverages Cadence PSpice Technology
- Preinstalled library with a suite of digital models to enable worst-case timing analysis
- Dynamic updates ensure you have access to most current device models
- Optimized for simulation speed without loss of accuracy
- Supports simultaneous analysis of multiple products
- (...)
Reference designs
CAD/CAE symbols
| Package | Pins | Download |
|---|---|---|
| SOT-23 (DBV) | 6 | View options |
| WSON (DRV) | 6 | View options |
Ordering & quality
- RoHS
- REACH
- Device marking
- Lead finish/Ball material
- MSL rating/Peak reflow
- MTBF/FIT estimates
- Material content
- Qualification summary
- Ongoing reliability monitoring
Support & training
TI E2E™ forums with technical support from TI engineers
Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.
If you have questions about quality, packaging or ordering TI products, see TI support.