Calculation tool
TPS3895
Single-channel, ultra-small, adjustable supervisor with active-high, push-pull output
Data sheet
TPS3895
- Very Small USON (1.45 mm × 1.00 mm) Package
- Adjustable Threshold Down to 500 mV
- Threshold Accuracy: 1% Over Temperature
- Capacitor-Adjustable Delay Time
- Low Quiescent Current: 6 µA (Typical)
- External Enable Input
- Open-Drain (Rated at 18 V) and Push-Pull Output
Options - Temperature Range: –40°C to 125°C
- Pin-for-Pin Compatible With MAX6895/6/7/8
The TPS3895, TPS3896, TPS3897, and TPS3898 devices (TPS389x) are a family of very small supervisory circuits that monitor voltages greater than 500 mV with a 0.25% (typical) threshold accuracy and offer adjustable delay time using external capacitors. The TPS389x family also has a logic enable pin (ENABLE or ENABLE) to power on and off the output. With the TPS3895, for example, when the input voltage pin (SENSE) rises above the threshold, and the ENABLE pin is high, then the output pin (SENSE_OUT) goes high after the capacitor-adjustable delay time. When SENSE falls below the threshold or ENABLE is low, then SENSE_OUT goes low.
For TPS389xA versions, both SENSE and ENABLE have a capacitor-adjustable delay. The output asserts after this capacitor-adjustable delay when both SENSE and ENABLE inputs are good. The TPS389xP devices have a small, 0.2-µs propagation delay from when the enable pin asserts to when the output pin asserts, provided SENSE is above the threshold.
All devices operate from 1.7 V to 6.5 V and have a typical quiescent current of 6 µA with an open-drain output rated at 18 V. The TPS389x is available in an ultra-small USON package and is fully specified over the temperature range of TJ = –40°C to 125°C.
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Technical documentation
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View all 7 | Type | Title | Date | ||
|---|---|---|---|---|
| * | Data sheet | TPS389x Single-Channel, Adjustable Voltage Monitor in Ultra-Small Package datasheet (Rev. B) | PDF | HTML | 02 Sep 2014 |
| Application note | Voltage Supervisors (Reset ICs): Frequently Asked Questions (FAQs) (Rev. A) | 17 Mar 2020 | ||
| Application note | Programmable Push-Button, Pulse Detector, and Pulse Generator Solutions | 10 Mar 2020 | ||
| Selection guide | Voltage Supervisors (Reset ICs) Quick Reference Guide (Rev. H) | 28 Feb 2020 | ||
| E-book | Voltage Supervisor and Reset ICs: Tips, Tricks and Basics | 28 Jun 2019 | ||
| Application brief | Latching a Voltage Supervisor (Reset IC) (Rev. A) | 05 Apr 2019 | ||
| Selection guide | Power Management Guide 2018 (Rev. R) | 25 Jun 2018 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.
Evaluation board
TPS3897A-6P-EVM047 — Evaluation module for TPS389xx single-channel adjustable supervisory circuit
The TPS3897A-6P-EVM047 evaluation module (EVM) is a fully assembled and tested circuit for evaluating the TPS3897A and TPS3896P single-channel adjustable supervisory circuit. The EVM has two complete adjustable supervisory circuits, one featuring a push-pull output and one featuring an (...)
User guide: PDF
Simulation model
TPS3895A Unencrypted PSpice Transient Model Package (Rev. A)
SBVM069A.ZIP (33 KB) - PSpice Model
Simulation model
TPS3895P Unencrypted PSpice Transient Model Package (Rev. A)
SBVM070A.ZIP (33 KB) - PSpice Model
Simulation tool
PSPICE-FOR-TI — PSpice® for TI design and simulation tool
PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
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| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| USON (DRY) | 6 | Ultra Librarian |
Ordering & quality
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