Automotive, low-quiescent current programmable-delay supervisor
Product details
Parameters
Package | Pins | Size
Features
- Qualified for Automotive Applications
- 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% Typical
- Fixed Threshold Voltages for Standard Voltage Rails From 1.2 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 Package and WSON Package (TPS3808G01QDRVRQ1 only)
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Description
The TPS3808Gxx-Q1 microprocessor supervisory circuits monitor 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 MR return above their thresholds.
The TPS3808Gxx-Q1 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 from 1.25 ms to 10 s by connecting the CT pin to an external capacitor. The TPS3808Gxx-Q1 has a very low typical quiescent current of 2.4 µA, so it is well suited for battery-powered applications. The device is available in a small SOT-23 package (one option available in WSON) and is fully specified over a temperature range of –40°C to +125°C (TJ).
For more information about TIs voltage supervisor portfolio, visit the Supervisor and Reset IC Overview Page page.
Same functionality but is not pin-for-pin or parametrically equivalent to the compared device:
Similar but not functionally equivalent to the compared device:
Technical documentation
Type | Title | Date | |
---|---|---|---|
* | Datasheet | TPS3808Gxx-Q1 Low-Quiescent-Current Programmable-Delay Supervisory Circuit datasheet (Rev. J) | Jun. 13, 2017 |
Functional safety information | TPS3808-Q1 Functional Safety FIT Rate and Failure Mode Distribution | Dec. 19, 2019 | |
E-book | Voltage Supervisor and Reset ICs: Tips, Tricks and Basics | Jun. 28, 2019 | |
User guide | Automotive Power Reference Design for Low-Power TDA3x Based Systems (Rev. B) | Jun. 14, 2017 | |
User guide | Automotive Power Frontend With Cold Crank Operation and EMI Filter Design Guide | Nov. 30, 2015 | |
User guide | TIDA-00530 Test Results | Oct. 13, 2015 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Hardware development
Description
Features
- Qualified for automotive applications
- 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 1.2 V to 5 V & adjustable voltage down to (...)
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
Design files
-
download TIDA-080004 BOM.zip (252KB) -
download TIDA-080004 Assembly Drawing.zip (478KB) -
download TIDA-080004 PCB.zip (3576KB) -
download TIDA-080004 CAD Files.zip (3386KB) -
download TIDA-080004 Gerber.zip (1389KB)
Design files
-
download TIDA-01004 Assembly Drawing (Rev. A).pdf (153KB) -
download TIDA-01004 BOM (Rev. A).pdf (29KB) -
download TIDA-01004 CAD Files (Rev. A).zip (524KB) -
download TIDA-01004 Gerber (Rev. A).zip (618KB) -
download TIDA-01004 PCB (Rev. A).pdf (863KB)
Design files
-
download TIDA-00530 BOM.pdf (260KB) -
download TIDA-00530 Altium.zip (2344KB) -
download TIDA-00530 Gerber.zip (538KB)
Design files
-
download TIDA-00699 BOM.pdf (257KB) -
download TIDA-00699 CAD Files.zip (626KB) -
download TIDA-00699 Gerber.zip (439KB)
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
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