TPS3702-Q1 Datasheet, PDF (1/28 Pages) Texas Instruments – High-Accuracy, Overvoltage and Undervoltage Monitor

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TPS3702-Q1
SBVS261B – APRIL 2015 – REVISED DECEMBER 2015
TPS3702-Q1 High-Accuracy, Overvoltage and Undervoltage Monitor
1 Features
•1 AEC-Q100 Qualified:
– Device Temperature Grade 1: –40°C to 125°C
Ambient Operating Temperature
– Device HBM ESD Classification Level 2
– Device CDM ESD Classification Level C4B
• Input Voltage Range: 2 V to 18 V
• High Threshold Accuracy:
– 0.25% (typ)
– 0.9% (–40°C to 125°C)
• Fixed Window Thresholds Optimized for Nominal
Rails Between 1 V and 5 V
• Open-Drain Outputs for Overvoltage and
Undervoltage Indication
• Internal Glitch Immunity
• Threshold Adjust Using the SET Pin
• Low Quiescent Current: 7 µA (typ)
• Internal Threshold Hysteresis: 0.55%, 1.0%
• SOT-6 Package
2 Applications
• Automotive Safety Applications
• Infotainment
• FPGA and ASIC Applications
• DSP-Based Systems
• Front Cameras
• Rear-View Cameras
• Automotive Radar Systems
Accuracy versus Temperature
Undervoltage Accuracy vs Temperature
0.5
Unit 1
Unit 2
Unit 3
0.4
Unit 4
Unit 5
Avg
0.3
0.2
0.1
0
-0.1
-0.2
-0.3
-0.4
-0.5
±40 ±25 ±10 5
20 35 50 65 80 95 110 125 140
Temperature (°C)
Overvoltage Accuracy vs Temperature
0.5
Unit 1
0.4
Unit 4
Unit 2
Unit 5
Unit 3
Avg
0.3
0.2
0.1
0
-0.1
-0.2
-0.3
-0.4
-0.5
±40 ±25 ±10 5
20 35 50 65 80 95 110 125 140
Temperature (°C)
C001
1
3 Description
The TPS3702-Q1 is an integrated overvoltage and
undervoltage window comparator in a small SOT-6
package. This highly accurate voltage detector is
ideal for systems that operate on low-voltage supply
rails and have narrow margin supply tolerances. Low
threshold hysteresis options of 0.55% and 1.0%
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 TPS3702-Q1 does not require any external
resistors for setting overvoltage and undervoltage
reset thresholds, which further increases overall
accuracy and reduces solution size and cost. The
SET pin is used to select between the two available
threshold voltages designed into each device. A
separate SENSE input pin and VDD pin allow for the
redundancy sought by safety-critical and high-
reliability systems. This device also features
independent reset outputs for the OV and UV pins; as
a result of the open-drain configuration, UV and OV
can be tied together.
This device has a low typical quiescent current
specification of 7 µA. The TPS3702-Q1 is suitable for
automotive applications and is qualified for AEC-
Q100 Grade 1.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TPS3702-Q1
SOT (6)
2.90 mm × 1.60 mm
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
Typical Application Circuit
Nominal Monitored Rail
Up to 5 V
Up to
18 V
Up to
6.5 V
TPS3702 R2
SENSE UV
VDD
SET
GND
OV
R1
VDD
RST
µ_P
NMI
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.