TPS3806J20 Datasheet, PDF (1/9 Pages) Texas Instruments – DUAL VOLTAGE DETECTOR WITH ADJUSTABLE HYSTERESIS

TPS3806J20, TPS3806I33
DUAL VOLTAGE DETECTOR WITH ADJUSTABLE HYSTERESIS
D Dual Voltage Detector With Adjustable
Hysteresis 3.3-V/Adjustable and
2-V/Adjustable
D Assured Reset at V_DD = 0.8 V
D Supply Current: 3 µA Typical at V_DD = 3.3 V
D Independent Open-Drain Reset Outputs
D Temperature Range . . . –40°C to 85°C
D Six-Pin SOT-23 Package
SLVS393 – JULY 2001
TPS3806
DBV PACKAGE
(TOP VIEW)
RSTSENSE ¹
6 HSENSE
GND 2
5 _LSENSE
RESET ³
4
V_DD
description
typical operating circuit
The TPS3806 integrates two independent voltage
detectors for battery voltage monitoring. During
power-on, RESET and RSTSENSE are asserted
when supply voltage V_DD or the voltage at
LSENSE input become 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 rise above the threshold voltage V_IT,
RESET or RSTSENSE is deasserted,
respectively. The TPS3806 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, an upper
voltage threshold can be set at HSENSE to allow
a wide adjustable hysteresis window.
3.6 V
Li-lon
Cell
VDD
RESET
R1
TPS3806I33
LSENSE RSTSENSE
R2
HSENSE
GND
R3
R4 R5
The devices are available in a 6-pin SOT-23 package. The TPS3806 device is characterized for operation over
a temperature range of –40°C to 85°C.
PACKAGE INFORMATION
TA
DEVICE NAME
–40_C to 85_C
TPS3806J20DBVR†
TPS3806I33DBVR†
TPS3806J20DBVT‡
TPS3806I33DBVT‡
† _{The DBVR passive indicates tape and reel containing 3000 parts.}
‡ _{The DBVT passive indicates tape and reel containing 250 parts.}
THRESHOLD VOLTAGE
VDD
1.8 V
SENSE
1.207 V
3V
1.207 V
MARKING
PGQI
PGPI
ordering information
TPS380 6 I 33 DBV R
Reel
Package
Nominal Supply Voltage
Nominal Threshold Voltage
Functionality
Family
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
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 Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
Copyright  2001, Texas Instruments Incorporated
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