TPS3851-Q1 Datasheet PDF


Part Number

TPS3851-Q1

Description

High-Accuracy Voltage Supervisor

Manufacture

etcTI

Total Page 30 Pages
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Download TPS3851-Q1 Datasheet PDF


Features Datasheet pdf Product Folder Order Now Technical Doc uments Tools & Software Support & Com munity TPS3851-Q1 SBVS286 – MARCH 20 17 TPS3851-Q1 High-Accuracy Voltage Sup ervisor with Integrated Watchdog Timer 1 Features •1 AEC-Q100 Qualified wit h the Following Results: – Device Tem perature Grade 1: –40°C to 125°C Am bient Operating Temperature Range – D evice HBM ESD Classification Level 2 Device CDM ESD Classification Level C 4B • Input Voltage Range: VDD = 1.6 V to 6.5 V • 1% Voltage Threshold Accu racy • Low Supply Current: IDD = 10 A (typ) • User-Programmable Watchdog Timeout • Factory Programmed Precisi on Watchdog and Reset Timers: – ±15% Accurate WDT and RST Delays • Open-Drain Outputs • Precision Un.
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TPS3851-Q1 Datasheet
Product
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Now
Technical
Documents
Tools &
Software
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TPS3851-Q1
SBVS286 – MARCH 2017
TPS3851-Q1 High-Accuracy Voltage Supervisor with Integrated Watchdog Timer
1 Features
1 AEC-Q100 Qualified with the Following Results:
– Device Temperature Grade 1: –40°C to 125°C
Ambient Operating Temperature Range
– Device HBM ESD Classification Level 2
– Device CDM ESD Classification Level C4B
• Input Voltage Range: VDD = 1.6 V to 6.5 V
• 1% Voltage Threshold Accuracy
• Low Supply Current: IDD = 10 µA (typ)
• User-Programmable Watchdog Timeout
• Factory Programmed Precision Watchdog and
Reset Timers:
– ±15% Accurate WDT and RST Delays
• Open-Drain Outputs
• Precision Undervoltage Monitoring:
– Supports Common Rails from 1.8 V to 5.0 V
– 4% and 7% Undervoltage Thresholds
Available
– 0.5% Hysteresis
• Watchdog Disable Feature
• Available in a Small 3-mm × 3-mm, 8-Pin VSON
Package
2 Applications
• Safety Critical Applications
• Automotive Vision Systems
• Automotive ADAS Systems
• Telematics Control Units
• FPGAs and ASICs
• Microcontrollers and DSPs
3 Description
The TPS3851-Q1 device combines a precision
voltage supervisor with a programmable watchdog
timer. The TPS3851-Q1 comparator achieves a 0.8%
accuracy (–40°C to +125°C) for the undervoltage
(VITN) threshold. The TPS3851-Q1 also includes
accurate hysteresis on the undervoltage threshold
making the device ideal for use with tight tolerance
systems. The supervisor RESET delay features a
15% accuracy, high-precision delay timing.
The TPS3851-Q1 includes a programmable
watchdog timer for a wide variety of applications. The
dedicated watchdog output (WDO) enables increased
resolution to help determine the nature of fault
conditions. The watchdog timeouts can be
programmed either by an external capacitor, or by
factory-programmed default delay settings. The
watchdog can be disabled via logic pins to avoid
undesired watchdog timeouts during the development
process.
The TPS3851-Q1 is available in a small 3.00-mm ×
3.00-mm, 8-pin VSON package. The TPS3851-Q1
features wettable flanks that allow for easy optical
inspection.
Device Information(1)
PART NUMBER
PACKAGE BODY SIZE (NOM)
TPS3851-Q1
VSON (8)
3.00 mm × 3.00 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Typical Application Circuit
1.8 V
TPS3851-Q1
VDD
SET1
MR
CWD
RESET
WDO
WDI
GND
VDD
Microcontroller
RESET
NMI
GPIO
GND
Copyright © 2016, Texas Instruments Incorporated
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.




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