Check for Samples: TPS3619-33-EP, TPS3619-50-EP, TPS3620-33-EP, TPS3620-50-EP
1
FEATURES
•Supply Current of 40 mA (Max)
•Battery-Supply Current of 100 nA (Max)
•Precision Supply-Voltage Monitor 3.3 V, 5 V,
and Other Options on Request
•Backup-Battery Voltage Can Exceed V
DD
•Power-On Reset Generator with Fixed 100-ms
Reset Delay Time
•Voltage Monitor for Power-Fail or Low-Battery
Monitoring
•Battery Freshness Seal (TPS3619)
•Pin-to-Pin Compatible With MAX819, MAX703,
and MAX704
•8-Pin Mini Small-Outline Package (MSOP)
Package
SUPPORTS DEFENSE, AEROSPACE,
AND MEDICAL APPLICATIONS
•Controlled Baseline
•One Assembly/Test Site
•One Fabrication Site
•Available in Military (–55°C/125°C)
Temperature Range
•Extended Product Life Cycle
•Extended Product-Change Notification
•Product Traceability
(1) Additional temperature ranges available - contact factoryof –55°C to 125°C.
(1)
APPLICATIONS
•Fax Machines
•Set-Top Boxes
•Advanced Voice-Mail Systems
•Portable Battery-Powered Equipment
•Computer Equipment
•Advanced Modems
•Automotive Systems
•Portable Long-Time Monitoring Equipment
•Point-of-Sale Equipment
DESCRIPTION
The TPS3619 and TPS3620 families of supervisory
circuits monitor and control processor activity by
providing backup-battery switchover for data retention
of CMOS RAM.
During power on, RESET is asserted when the
supply voltage (VDDor V
V. Thereafter, the supply voltage supervisor monitors
VDDand keeps RESET output active as long as V
remains below the threshold voltage (VIT). An internal
timer delays the return of the output to the inactive
state (high) to ensure proper system reset. The delay
time starts after VDDhas risen above VIT. When the
supply voltage drops below VIT, the output becomes
active (low) again.
The product spectrum is designed for supply voltages
of 3.3 V and 5 V. The TPS3619 and TPS3620 are
available in an 8-pin MSOP package and are
characterized for operation over a temperature range
) becomes higher than 1.1
BAT
DD
1
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.
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.
This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with
appropriate precautions. Failure to observe proper handling and installation procedures can cause damage.
ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more
susceptible to damage because very small parametric changes could cause the device not to meet its published specifications.
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TYPICAL OPERATING CIRCUIT
PACKAGE INFORMATION
T
A
–55°C to 125°C
(1) For the most current specifications and package information, see the Package Option Addendum located at the end of this data sheet or
see the TI web site at www.ti.com.
(2) Product Preview. Parameters in electrical characteristics are subject to change.
PRODUCTORDERABLE PART NUMBER
TPS3619-33BZP
TPS3619-50TBD
TPS3620-33BTY
TPS3620-50TBD
PACKAGETRANSPORT MEDIA,
MARKINGQUANTITY
(1)
TPS3619-33MDGKEP
TPS3619-33MDGKREPTape and reel, 2500
TPS3619-50MDGK
TPS3619-50MDGKREP
TPS3620-33MDGKTEPTape and reel, 250
TPS3620-33MDGKREPTape and reel, 2500
TPS3620-50MDGKTEP
TPS3620-50MDGKREP
over operating free-air temperature (unless otherwise noted)
(2)
V
Supply voltage
Continuous output current, I
O
Continuous total power dissipationSee Dissipation Ratings Table
Operating free-air temperature range, T
Storage temperature range, T
stg
A
Lead temperature soldering 1,6 mm (1/16 in) from case for 10 s260°C
(1) Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. These are stress ratings
only, and functional operation of the device at these or any other conditions beyond those indicated under recommended operating
conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
(2) All voltage values are with respect to GND. For reliable operation, the device must not be continuously operated at 7 V for more than
t = 1000 h.
DD
MR and PFI pins
V
OUT
All other pins
(1)
UNIT
7 V
(2)
–0.3 V to (VDD+ 0.3 V)
400 mA
(2)
±10 mA
–55°C to 125°C
–65°C to 150°C
Dissipation Ratings
PACKAGE
DGK470 mW3.76 mW/°C301 mW241 mW93.98 mW
TA< 25°CDERATING FACTORTA= 70°CTA= 85°CTA= 125°C
POWER RATINGABOVE TA= 25°CPOWER RATINGPOWER RATINGPOWER RATING
Recommended Operating Conditions
at specified temperature range
V
DD
V
BAT
V
I
V
IH
V
IL
I
O
Δt/ΔVSlew rate at VDDor V
T
A
Supply voltage1.655.5V
Battery supply voltage1.55.5V
Input voltage0VDD+ 0.3V
High-level input voltage0.7 × V
Low-level input voltage0.3 × V
Continuous output current at V
(1) The lowest supply voltage at which RESET becomes active. t
(2) To ensure the best stability of the threshold voltage, a bypass capacitor (ceramic, 0.1 mF) should be placed near the supply terminals.
(3) For VDD< 1.6 V, V
The battery freshness seal of the TPS3619 family disconnects the backup battery from internal circuitry until it is
needed. This function prevents the backup battery from being discharged until the final product is put to use. The
following steps explain how to enable the freshness seal mode.
1. Connect V
BAT(VBAT
> V
BAT
min)
2. Ground PFO
3. Connect PFI to VDD(PFI = VDD)
4. Connect VDDto power supply (VDD> VIT) and retain for 5 ms < t < 35 ms
The battery freshness seal mode is removed automatically by the positive-going edge of RESET when VDDis
applied.
Power-Fail Input/Output Comparator (PFI and PFO)
An additional comparator is provided to monitor voltages other than the nominal supply voltage. The PFI is
compared with an internal voltage reference of 1.15 V. If the input voltage falls below the power-fail threshold
(V
returns to high. By connecting two external resistors, it is possible to supervise any voltages above V
sum of both resistors should be about 1 MΩ, to minimize power consumption and also to ensure that the current
in the PFI pin can be ignored, compared with the current through the resistor network. The tolerance of the
external resistors should be not more than 1%, to ensure minimal variation of sensed voltage. If the power-fail
comparator is unused, PFI should be connected to ground and PFO left unconnected.
) of 1.15 V (typ), the PFO goes low. If V
IT(PFI)
goes above V
IT(PFI)
plus about 12-mV hysteresis, the output
(PFI)
(PFI)
. The
Backup-Battery Switchover
In case of a brownout or power failure, it may be necessary to preserve the contents of RAM. If a backup battery
is installed at V
order to allow the backup battery (e.g., a 3.6-V lithium cell) to have a higher voltage than VDD, these supervisors
do not connect V
when VDDfalls below the VITand V
until VDDcrosses V
when VDDcrosses the reset threshold.
, the device automatically switches the connected RAM to backup power when VDDfails. In
BAT
BAT
to V
BAT
OUT
when V
is greater than VDD. V
BAT
is greater than VDD. When VDDrecovers, switchover is deferred, either
TPS3619-33MDGKREPACTIVEVSSOPDGK82500RoHS & GreenNIPDAULevel-1-260C-UNLIM-55 to 125BZP
TPS3620-33MDGKREPACTIVEVSSOPDGK82500RoHS & GreenNIPDAULevel-1-260C-UNLIM-55 to 125BTY
TPS3620-33MDGKTEPACTIVEVSSOPDGK8250RoHS & GreenNIPDAULevel-1-260C-UNLIM-55 to 125BTY
V62/06670-01XEACTIVEVSSOPDGK82500RoHS & GreenNIPDAULevel-1-260C-UNLIM-55 to 125BZP
V62/06670-03XEACTIVEVSSOPDGK82500RoHS & GreenNIPDAULevel-1-260C-UNLIM-55 to 125BTY
(1)
The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design.
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
OBSOLETE: TI has discontinued the production of the device.
Package Type Package
(1)
Drawing
Pins Package
Qty
Eco Plan
(2)
Lead finish/
Ball material
(6)
MSL Peak Temp
(3)
Op Temp (°C)Device Marking
(4/5)
(2)
RoHS: TI defines "RoHS" to mean semiconductor products that are compliant with the current EU RoHS requirements for all 10 RoHS substances, including the requirement that RoHS substance
do not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, "RoHS" products are suitable for use in specified lead-free processes. TI may
reference these types of products as "Pb-Free".
RoHS Exempt: TI defines "RoHS Exempt" to mean products that contain lead but are compliant with EU RoHS pursuant to a specific EU RoHS exemption.
Green: TI defines "Green" to mean the content of Chlorine (Cl) and Bromine (Br) based flame retardants meet JS709B low halogen requirements of <=1000ppm threshold. Antimony trioxide based
flame retardants must also meet the <=1000ppm threshold requirement.
(3)
MSL, Peak Temp. - The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature.
(4)
There may be additional marking, which relates to the logo, the lot trace code information, or the environmental category on the device.
(5)
Multiple Device Markings will be inside parentheses. Only one Device Marking contained in parentheses and separated by a "~" will appear on a device. If a line is indented then it is a continuation
of the previous line and the two combined represent the entire Device Marking for that device.
(6)
Lead finish/Ball material - Orderable Devices may have multiple material finish options. Finish options are separated by a vertical ruled line. Lead finish/Ball material values may wrap to two
lines if the finish value exceeds the maximum column width.
Samples
Addendum-Page 1
PACKAGE OPTION ADDENDUM
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10-Dec-2020
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