TPS3700_15 Datasheet, PDF (1/28 Pages) Texas Instruments – TPS3700 Window Comparator With Internal Reference for Overvoltage and Undervoltage Detection

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TPS3700
SBVS187D – FEBRUARY 2012 – REVISED JANUARY 2015
TPS3700 Window Comparator With Internal Reference
for Overvoltage and Undervoltage Detection
1 Features
•1 Wide Supply Voltage Range: 1.8 V to 18 V
• Adjustable Threshold: Down to 400 mV
• High Threshold Accuracy:
– 1.0% Over Temperature
– 0.25% (Typical)
• Low Quiescent Current: 5.5 µA (Typical)
• Open-Drain Outputs for Overvoltage and
Undervoltage Detection
• Internal Hysteresis: 5.5 mV (Typ)
• Temperature Range: –40°C to 125°C
• Packages:
– SOT-6
– 1.5-mm × 1.5-mm WSON-6
2 Applications
• Industrial Control Systems
• Automotive Systems
• Embedded Computing Modules
• DSP, Microcontroller, or Microprocessor
Applications
• Notebook and Desktop Computers
• Portable- and Battery-Powered Products
• FPGA and ASIC Applications
3 Description
The TPS3700 wide-supply voltage window
comparator operates over a 1.8-V to 18-V range. The
device has two high-accuracy comparators with an
internal 400-mV reference and two open-drain
outputs rated to 18 V for over- and undervoltage
detection. The TPS3700 can be used as a window
comparator or as two independent voltage monitors;
the monitored voltage can be set with the use of
external resistors.
OUTA is driven low when the voltage at INA+ drops
below (V_ITP – V_HYS), and goes high when the voltage
returns above the respective threshold (V_ITP). OUTB
is driven low when the voltage at INB– rises above
V_ITP, and goes high when the voltage drops below the
respective threshold (V_ITP – V_HYS). Both comparators
in the TPS3700 include built-in hysteresis for filtering
to reject brief glitches, thereby ensuring stable output
operation without false triggering.
The TPS3700 is available in a SOT-6 and a 1.5-mm
× 1.5-mm WSON-6 package and is specified over the
junction temperature range of –40°C to 125°C.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TPS3700
SOT (6)
WSON (6)
2.90 mm × 1.60 mm
1.50 mm × 1.50 mm
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
4 Simplified Schematic
V_MON
1.8 V to 18 V
0.1 µF
R₁
V_DD
RP₁
INA+
OUTA
RP₂
R₂
Device
INB–
OUTB
R₃
GND
To a reset
or enable
input of
the system.
INA+ ^VIT+
INB±
V_IT+
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.