TPS3839A09 Datasheet, PDF (1/11 Pages) Texas Instruments – Ultra-Low Power, Supply Voltage Supervisor

TPS3839
www.ti.com
Ultra-Low Power, Supply Voltage Supervisor
Check for Samples: TPS3839
SBVS193 – JUNE 2012
FEATURES
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•2 1-mm × 1-mm µSON or 3-Pin SOT23 Package
• Ultra-Low Supply Current: 150 nA (typ)
• Operating Supply Voltage: 0.6 V to 6.5 V
• Ensured Valid RESET for V_DD > 0.6 V
• Push-Pull RESET Output
• Temperature Range: –40°C to +85°C
• Factory-Trimmed RESET Threshold Voltages
APPLICATIONS
• Portable and Battery-Powered Equipment
• Industrial Equipment
• Cell Phones
• Glucose Monitors
• Metering
• Televisions
DESCRIPTION
The TPS3839 is an ultra-low current, 150-nA (typ)
voltage supervisory circuit that monitors a single
voltage. The device asserts an active-low reset signal
whenever the V_DD supply voltage drops below the
factory-trimmed reset threshold voltage. The reset
output remains asserted for 200 ms (typ) after the
V_DD voltage rises above the threshold voltage. The
TPS3839 is designed to ignore fast transients on the
V_DD pin.
The ultra-low current consumption of 150 nA makes
the TPS3839 ideal for use in low-power and portable
applications. The TPS3839 is ensured to have the
correct output logic state for supply voltages down to
0.6 V.
The device features precision factory-trimmed
threshold voltages and extremely low power
operation. The TPS3839 is available is a 3-pin
SOT23 (DBZ) package or a 4-pin 1-mm × 1-mm
(DQN) µSON package.
3.3 V
C₁
0.1 mF
V_DD
TPS3839K33
RESET
GND
V_DD
mP
RST
GND
DBZ PACKAGE
SOT23-3
(TOP VIEW)
GND
1
3
V_DD
RESET
2
DQN PACKAGE
1-mm ´ 1-mm TBD
(TOP VIEW)
RESET 1
4 V_DD
NC 2
3 GND
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2
PRODUCT PREVIEW information concerns products in the
formative or design phase of development. Characteristic data and
other specifications are design goals. Texas Instruments reserves
the right to change or discontinue these products without notice.
Copyright © 2012, Texas Instruments Incorporated