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TPS3703A4280DSERQ1

更新时间： 2024-11-21 02:46:31
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德州仪器 - TI /
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37页 2830K
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Overvoltage and Undervoltage Reset IC With Time Delay and Manual Reset

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TPS3703A4280DSERQ1 数据手册

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TPS3703-Q1  
SBVS344D – NOVEMBER 2018 – REVISED MARCH 2021  
TPS3703-Q1  
Overvoltage and Undervoltage Reset IC With Time Delay and Manual Reset  
1 Features  
3 Description  
•
AEC-Q100 qualified for automotive applications:  
– Temperature grade 1: –40°C to +125°C, TA  
– Device HBM ESD classification level 2  
– Device CDM ESD classification level C7B  
Functional Safety-Capable  
– Documentation available to aid functional safety  
system design  
Input voltage range: 1.7 V to 5.5 V  
Undervoltage lockout (UVLO): 1.7 V  
Low quiescent current: 7 µA (Max)  
High threshold accuracy:  
The TPS3703-Q1 device is an integrated overvoltage  
(OV) and undervoltage (UV) monitor or reset IC in  
industry’s smallest 6-pin DSE package. This highly  
accurate voltage supervisor is ideal for systems  
that operate on low-voltage supply rails and have  
narrow margin supply tolerances. Low threshold  
hysteresis prevent false reset signals when the  
monitored voltage supply is in its normal range of  
operation. Internal glitch immunity and noise filters  
further eliminate false resets resulting from erroneous  
signals.  
•
•
•
•
•
The TPS3703-Q1 does not require any external  
resistors for setting overvoltage and undervoltage  
reset thresholds, which further optimizes overall  
accuracy, cost, solution size, and improves reliability  
for safety systems. The Capacitor Time (CT) pin is  
used to select between the two available reset time  
delays designed into each device and also to adjust  
the reset time delay by connecting a capacitor. A  
separate SENSE input pin and VDD pin allow for the  
redundancy sought by high-reliability systems.  
– ± 0.25% (typical)  
– ± 0.7% (–40°C to +125°C)  
Fixed window threshold levels  
•
– 50-mV steps from 500 mV to 1.3 V  
– 1.5 V, 1.8 V, 2.5 V, 2.8 V, 2.9 V 3.3 V, 5 V  
– Available in UV threshold only  
– Window tolerance available from ±3% to ±7%  
User adjustable voltage threshold levels  
Internal glitch immunity and hysteresis  
Fixed time delay options: 50 µs, 1 ms, 5 ms, 10  
ms, 20 ms, 100 ms, 200 ms  
Programmable time delay option with a single  
external capacitor  
Open-drain active low UV and OV monitor  
RESET voltage latching output mode  
•
•
•
This device has a low typical quiescent current  
specification of 4.5 µA (typical). The TPS3703-Q1 is  
suitable for automotive applications and is qualified for  
AEC-Q100 Grade 1.  
•
Device Information(1)  
•
•
PART NUMBER  
PACKAGE  
BODY SIZE (NOM)  
TPS3703-Q1  
WSON (6)  
1.50 mm × 1.50 mm  
2 Applications  
(1) For all available packages, see the orderable addendum at  
the end of the data sheet.  
•
•
•
•
•
Advanced driver assistance system (ADAS)  
ADAS domain controller  
Automotive infotainment and cluster  
Digital cockpit  
35  
30  
25  
20  
15  
10  
5
HEV/EV  
OV Threshold  
Monitor Voltage  
VCORE  
UV Threshold  
TPS3703Q1  
1
SENSE  
6
5
MR  
Processor  
RESET  
Up to  
5.5V  
VDD  
CT  
GND  
2
3
10k ꢀ  
RESET  
4
0
-0.4  
-0.3  
-0.2  
-0.1  
0
0.1  
0.2  
0.3  
0.4  
Optional  
VIT+(OV) Accuracy (%)  
D004  
Integrated Overvoltage and Undervoltage  
Detection  
Typical Overvoltage Accuracy Distribution  
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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