TPS3806I33-Q1 Datasheet, PDF (1/15 Pages) Texas Instruments – Dual Voltage Detector With Adjustable Hysteresis

TPS3806I33-Q1
www.ti.com
SLVSBW8A – MARCH 2013 – REVISED MARCH 2013
Dual Voltage Detector With Adjustable Hysteresis
Check for Samples: TPS3806I33-Q1
FEATURES
1
• Qualified for Automotive Applications
• AEC-Q100 Qualified With the Following
Results:
– Device Temperature Grade 1: –40°C to
125°C Ambient Operating Temperature
Range
– Device HBM ESD Classification Level H2
– Device CDM ESD Classification Level C4B
• Dual Voltage Detector With Adjustable
Hysteresis, 3.3-V Adjustable and 2-V
Adjustable
• Assured Reset at V_DD = 0.8 V
• Supply Current: 3 µA Typical at V_DD = 3.3 V
• Independent Open-Drain Reset Outputs
• 6-Pin SOT-23 Package
APPLICATIONS
• Voltage Supervisor
• Voltage Detector
• Battery Monitor
DESCRIPTION
The TPS3806I33-Q1 integrates two independent
voltage detectors for battery voltage monitoring.
During power on, the device asserts RESET and
RSTSENSE when supply voltage V_DD or the voltage
at the LSENSE input becomes higher than 0.8 V.
Thereafter, the supervisory circuit monitors V_DD and
LSENSE, keeping RESET and RSTSENSE active as
long as V_DD and LSENSE remain below the threshold
voltage, V_IT. As soon as V_DD or LSENSE rises above
the threshold voltage V_IT, the device deasserts
RESET or RSTSENSE, respectively. The
TPS3806I33-Q1 device has a fixed-sense threshold
voltage V_IT set by an internal voltage divider at V_DD
and an adjustable second-LSENSE input. In addition,
one can set an upper voltage threshold at HSENSE
to
allow
a
wide
adjustable
hysteresis window.
The devices are available in a 6-pin SOT-23
package. Characterization of the TPS3806I33-Q1
device is for operation over a temperature range of
–40°C to 125°C.
TPS3806I33-Q1
DBV PACKAGE
(TOP VIEW)
RSTSENSE
1
6
HSENSE
GND
2
5
LSENSE
RESET
3
4
V_DD
3.6 V
Li-lon
Cell
V_DD
RESET
R1
TPS3806I33-Q1
LSENSE RSTSENSE
R2
HSENSE
GND
R3
R4 R5
Typical Operating Circuit
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Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2013, Texas Instruments Incorporated