TPS3779-Q1 Datasheet, PDF (1/24 Pages) Texas Instruments – Dual-Channel, Low-Power, High-Accuracy Voltage Detectors

Product
Folder
Sample &
Buy
Technical
Documents
Tools &
Software
Support &
Community
TPS3779-Q1, TPS3780-Q1
SBVS273 – JUNE 2016
TPS37xx-Q1
Dual-Channel, Low-Power, High-Accuracy Voltage Detectors
1 Features
•1 Qualified for Automotive Applications
• 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 H2
– Device CDM ESD Classification Level C4B
• Two-Channel Detectors in Small Packages
• High-Accuracy Threshold and Hysteresis: 1.0%
• Low Quiescent Current: 2 µA (typ)
• Adjustable Detection Voltage Down to 1.2 V
• 5% and 10% Hysteresis Options
• Temperature Range: –40°C to +125°C
• Push-Pull (TPS3779-Q1) and Open-Drain
(TPS3780-Q1) Output Options
• Available in an SOT-23 Package
2 Applications
• DSPs, Microcontrollers, and Microprocessors
• Advanced Driver Assistance Systems (ADAS)
• Infotainment and Clusters
• Power-Supply Sequencing Applications
3 Description
The TPS3779-Q1 and TPS3780-Q1 are a family of
high-accuracy, two-channel voltage detectors
featuring low power and small solution size. The
SENSE1 and SENSE2 inputs include hysteresis to
reject brief glitches, thus ensuring stable output
operation without false triggering. This device family
offers different factory-set hysteresis options of 5% or
10%.
The TPS3779-Q1 and TPS3780-Q1 have adjustable
SENSEx inputs that can be configured by an external
resistor divider. When the voltage at the SENSE1 or
SENSE2 input goes below the falling threshold,
OUT1 or OUT2 is driven low, respectively. When
SENSE1 or SENSE2 rises above the rising threshold,
OUT1 or OUT2 goes high, respectively.
The devices have a very low quiescent current of
2 µA (typical) and provide a precise, space-conscious
solution for voltage detection suitable for low-power,
system-monitoring, and portable applications. The
TPS3779-Q1 and TPS3780-Q1 operate from 1.5 V to
5.5 V, over the –40°C to +125°C temperature range.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TPS37xx-Q1
SOT-23 (6)
2.90 mm × 1.60 mm
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
Sense Threshold (V_IT+) Deviation versus
Temperature
0.4
0.32
0.24
0.16
0.08
0
-0.08
-0.16
-0.24
-0.32
-0.4
-40 -25 -10 5
Sense 1 VDD = 1.5 V
Sense 1 VDD = 5.5 V
Sense 2 VDD = 1.5 V
Sense 2 VDD = 5.5 V
20 35 50 65 80 95 110 125
Temperature (qC)
VMON2
R3
R4
Typical Schematic
VDD = 1.5 V to 5.5 V
0.1 F
TPS3780 Only
VMON1
R1
VDD
SENSE1 OUT1
R2
TPS37xx-Q1
SENSE2 OUT2
VPULLUP
RPU1
RPU1
To a reset or enable
input of the system.
To a reset or enable
input of the system.
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.