TPS3831_16 Datasheet, PDF (1/31 Pages) Texas Instruments – Ultralow Power, Supply Voltage Monitor

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TPS3831, TPS3839
SBVS193D – JUNE 2012 – REVISED JULY 2015
TPS383x 150-nA, Ultralow Power, Supply Voltage Monitor
1 Features
•1 Ultralow Supply Current: 150 nA (Typical)
• Operating Supply Voltage: 0.9 V to 6.5 V
• Valid Reset for V_DD > 0.6 V
• Push-Pull RESET Output
• Factory-Trimmed Reset Threshold Voltages
• Temperature Range: –40°C to 85°C
• Packages: 1-mm × 1-mm X2SON or 3-Pin SOT23
2 Applications
• Portable and Battery-Powered Equipment
• Metering
• Industrial Equipment
• Cell Phones
• Glucose Monitors
• Tablets
• Wearables
3 Description
The TPS3831 and TPS3839 devices (both referred to
as TPS383x) are ultralow current (150 nA, typical),
voltage supervisory circuits that monitor a single
voltage. Both devices initiate an active-low reset
signal whenever the V_DD supply voltage drops below
the factory-trimmed reset threshold voltage. The reset
output remains low for 200 ms (typical) after the V_DD
voltage rises above the threshold voltage and
hysteresis. These devices are designed to ignore fast
transients on the VDD pin. The TPS3831 device
includes a manual reset input that forces RESET low
when MR is low.
The ultralow current consumption of 150 nA makes
these voltage supervisors ideal for use in low-power
and portable applications. The TPS383x devices are
specified to have the correct output logic state for
supply voltages down to 0.6 V.
The TPS383x devices feature precision factory-
trimmed threshold voltages and extremely low-power
operation. The TPS3831 device is available in a 4-
pin, 1-mm × 1-mm (DQN) X2SON package. The
TPS3839 device is available in a 3-pin SOT23 (DBZ)
package or a 4-pin, 1-mm × 1-mm (DQN) X2SON
package.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
PACKAGE SIZE
(NOM)
TPS3831
X2SON (4)
1.00 mm x 1.00 mm
TPS3839
SOT-23 (3)
X2SON (4)
2.92 mm x 2.37 mm
1.00 mm x 1.00 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
TPS3831
Only
Typical Application Circuit
3.3 V
C₁
0.1 mF
VDD
TPS383xK33
MR
RESET
GND
Microprocessor
RST
Supply Current vs Temperature
200
190
V_DD = 1.2 V
V_DD = 3.3 V
180
V_DD = 5.0 V
170
V_DD = 6.5 V
160
150
140
130
120
110
100
−40
−15
10
35
60
85
Temperature (°C)
G001
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.