TPS3807A30DCKTG4 [TI]
2-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO5, GREEN, PLASTIC, SC-70, 5 PIN;
| 型号： | TPS3807A30DCKTG4 |
| 厂家： | 
TEXAS INSTRUMENTS |
| 描述： | 2-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO5, GREEN, PLASTIC, SC-70, 5 PIN 光电二极管 |
| 文件： | 总11页 (文件大小：265K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
TPS3807
www.ti.com
SBVS061A–AUGUST 2005–REVISED SEPTEMBER 2005
Low Quiescent Current, Dual-Channel Supervisory Circuit
FEATURES
DESCRIPTION
•
Two Supply Monitors in One Package
The TPS3807 family microprocessor supervisory cir-
cuits monitor system voltages as low as 1.225V.
These devices assert an open-drain RSTVDD signal
when the VDD voltage drops below a preset threshold.
The RSTVDD output remains asserted until the VDD
voltage returns above its threshold. The device also
provides an additional RSTSENSE output for a
SENSE input with adjustable thresholds and hyster-
esis.
•
One Monitor with Fixed High-Accuracy
Thresholds for System Supply Monitoring
•
Second Monitor with Variable Threshold and
30mV Hysteresis to Provide Failsafe
•
•
Very Low Quiescent Current: 3.5µA typ
High Threshold Accuracy: 1% max
(0°C to +85°C)
The TPS3807 uses a precision reference to achieve
1% threshold accuracy. The TPS3807 has a very low
typical quiescent current of 3.5µA, so it is well-suited
to battery-powered applications. It is available in a
small SC70-5 package, which is half the size of a
SOT-23 package, and is fully specified over a tem-
perature range of –40°C to +85°C.
•
•
•
Open-Drain Reset Outputs
Temperature Range: –40°C to +85°C
Ultra-Small SC70-5 Package
APPLICATIONS
•
DSP, Microcontroller, or Microprocessor
Applications Requiring User-Selected Delay
Times
•
•
•
•
•
Notebook/Desktop Computers
PDAs and SmartPhones
Other Hand-Held Products
Portable, Battery-Powered Products
FPGA/ASIC Applications
System Supply
VDD
Supply 2
DCK Package
SC70−5
(Top View)
RSTVDD
Battery Enable
Battery Good
TPS3807
RSTSENSE
Battery
SENSE
VDD
RSTSENSE
GND
1
2
3
5
4
SENSE
GND
TPS3807
RSTVDD
Typical Application Circuit
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.
All trademarks are the property of their respective owners.
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 © 2005, Texas Instruments Incorporated
TPS3807
www.ti.com
SBVS061A–AUGUST 2005–REVISED SEPTEMBER 2005
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.
ORDERING INFORMATION(1)
VDD NEGATIVE
THRESHOLD
VDD POSITIVE
THRESHOLD
SENSE
THRESHOLD
VOLTAGE
VOLTAGE
VOLTAGE
(2)
(2)
PRODUCT
(VDD IT–
)
(VDD IT+
)
(VSENSE IT
)
TPS3807A30DCKT(3)
TPS3807A30DCKR(4)
3.00V
3.00V
3.58V
3.58V
1.225V
1.225V
(1) For the most current package and ordering information, see the Package Option Addendum at the end of this document or see the TI
web site at www.ti.com.
(2) Other voltage options are available upon request; minimum order quantities may apply.
(3) DCKT passive indicates tape and reel containing 250 parts.
(4) The DCKR passive indicates tape and reel containing 3000 parts.
ABSOLUTE MAXIMUM RATINGS
Over operating free-air temperature range, unless otherwise noted.(1)
SENSE pin voltage(2)
All other pins(2)
–0.3V to +5V
–0.3V to +7V
±5mA
Maximum output current
Input clamp current, IIK (VI < 0 or VI > VDD
)
±10mA
Output clamp current, IOK (VO < 0 or VO > VDD
Continuous total power dissipation
Junction temperature, TC
)
±10mA
See Dissipation Ratings table
–40°C to +125°C
–65°C to +150°C
+260°C
Storage temperature range, TSTG
Soldering temperature
ESD rating:
Human body model (HBM)
Charged device model (CDM)
2kV
500V
(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 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 7V for more than
t = 1000 hours.
DISSIPATION RATINGS
DERATING FACTOR
TA < +25°C
TA = +70°C
TA = +80°C
PACKAGE
θJA
ABOVE TA = +25°C
POWER RATING
POWER RATING
POWER RATING
DCK
+246°C/W
+2.6mW/°C
406mW
223mW
167mW
RECOMMENDED OPERATING CONDITIONS
MIN
1.8
0
MAX
UNIT
Supply voltage, VDD
6.5
VDD + 0.3
4.5
V
0V ≤ VDD ≤ 4.2V
DD ≥ 4.2V
Input voltage, VSENSE
V
V
Operating free-air temperature range, TA
–40°C
+85°C
°C
2
TPS3807
www.ti.com
SBVS061A–AUGUST 2005–REVISED SEPTEMBER 2005
ELECTRICAL CHARACTERISTICS
Over recommended operating temperature range, unless otherwise noted.
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VDD
Input supply range
1.8
6.5
V
VDD = 3.3V
RSTVDD, RSTSENSE = open
3.5
4.5
6.5
7.5
µA
µA
IDD
Supply current
VDD = 6.5V
RSTVDD, RSTSENSE = open
VDD = 1.3V, IOL = 0.4mA
VDD = 1.8V, IOL = 1mA
VDD = 3.3V, IOL = 2mA
0.3
0.4
0.4
VOL
Low-level output voltage
Power-up reset(1)
V
V
VRSTVDD (max) = 0.2V,
IOL = 30µA, +25°C
0.9
VDD IT–
VDD IT+
Negative-going input threshold voltage(2)
Positive-going input threshold voltage(2)
2.963
3.530
1.213
1.210
3.000
3.575
1.225
1.225
30
3.037
3.620
1.237
1.240
V
V
0°C to +85°C
VSENSE IT– Negative-going input threshold voltage
V
–40°C to +85°C
VHYS
ISENSE
CI
SENSE input hysteresis
Input current
mV
nA
pF
nA
–25
+25
300
Input capacitance
VI = 0V to VDD
1
IOH
High-level output current
VRSTVDD, RSTSENSE = 6.5V
(1) The lowest supply voltage at which RSTVDD (VRSTVDD (max) = 0.2V, IOL = 30µA) becomes active. tr, VDD ≥ 15µs/V.
(2) To ensure best stability of the threshold voltage, a bypass capacitor (ceramic, 0.1µF) should be placed near the VDD pin.
TIMING REQUIREMENTS
At TA = –40°C to +85°C, RL = 1MΩ, and CL = 50pF, unless otherwise noted.
PARAMETER
Pulse width
TEST CONDITIONS
MIN
TYP
MAX
MAX
UNIT
tW
VIH = 1.05VIT, VIL = 0.95VIT
10
µs
SWITCHING CHARACTERISTICS
At TA = –40°C to +85°C, RL = 1MΩ, and CL = 50pF, unless otherwise noted.
PARAMETER
TEST CONDITIONS
MIN
TYP
UNIT
VDD to RSTVDD
Propagation delay time,
high-to-low-level output
tPHL
VIH = 1.05VIT, VIL = 0.95VIT
20
µs
SENSE to RSTSENSE
3
TPS3807
www.ti.com
SBVS061A–AUGUST 2005–REVISED SEPTEMBER 2005
FUNCTIONAL BLOCK DIAGRAM
VDD
TPS3807
RSTVDD
1.225V
Reference
RSTSENSE
SENSE
GND
PIN DESCRIPTIONS
NAME
RSTSENSE
GND
PIN NO.
I/O
DESCRIPTION
RSTSENSE is an open-drain output that is driven to a low-impedance state when the
SENSE input is lower than the threshold voltage VSENSE IT–. RSTSENSE will remain low until
SENSE is above VSENSE IT+. A pull-up resistor from 10kΩ to 1MΩ should be used on this pin,
1
2
3
O
I
and allows the reset pin to attain voltages higher than VDD
.
Ground
RSTVDD is an open-drain output that is driven to a low-impedance state when the VDD input
is lower than the threshold voltage VDD IT–. RSTVDD will remain low until VDD is above
VDD IT+. A pull-up resistor from 10kΩ to 1MΩ should be used on this pin, and allows the reset
RSTVDD
O
pin to attain voltages higher than VDD
.
Supply voltage for the device and sense input for fixed-threshold RSTVDD outputs. A 0.1µF
ceramic capacitor should be placed close to this pin for best VIT stability.
VDD
4
5
I
I
Sense input for the adjustable-threshold RSTSENSE outputs. A resistor divider from the
sense voltage can be attached to this pin to set the thresholds to the desired voltages. A
0.1µF ceramic capacitor should be placed close to this pin for best VIT stability.
SENSE
TIMING DIAGRAM
VDD
VGOOD
VON
VLOW
VOFF
0.8V
0V
RSTSENSE
tD = Reset Delay
= Undefined State
RSTVDD
Time
Figure 1. TPS3807 Timing Diagram Showing Reset Timing (SENSE resistor divider set to 3.6V)
4
TPS3807
www.ti.com
SBVS061A–AUGUST 2005–REVISED SEPTEMBER 2005
TYPICAL CHARACTERISTICS
At TA = +25°C, VDD = 3.3V, RLRESET = 1MΩ, and CLRESET = 50pF, unless otherwise noted.
SUPPLY CURRENT
vs
SUPPLY VOLTAGE
LOW-LEVEL OUTPUT VOLTAGE
vs
LOW-LEVEL OUTPUT CURRENT
6
5
4
3
2
1
0
1.60
1.40
1.20
SENSE = GND
RSTSENSE = Open
V
V
= 1.8V
DD
= Low
SENSE
+85°C
1.00
0.80
0.60
0.40
0.20
0
+25°C
0°C
+85°C
+25°C
−40°C
0°C
−40°C
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
5.5
6
0
1
2
3
4
5
VDD − Supply Voltage − V
IOL − Low-Level Output Current − mA
Figure 2.
Figure 3.
LOW-LEVEL OUTPUT VOLTAGE
vs
LOW-LEVEL OUTPUT CURRENT
LOW-LEVEL OUTPUT VOLTAGE
vs
LOW-LEVEL OUTPUT CURRENT
0.50
1.60
1.40
1.20
V
V
= 1.8V
DD
V
V
= 3.3V
DD
0.45
= Low
SENSE
= Low
SENSE
(Expanded View)
0.40
0.35
0.30
0.25
0.20
0.15
+85°C
+85°C
+25°C
+25°C
0°C
1.00
0.80
0.60
0.40
0.20
0
−40°C
0°C
−40°C
0.10
0.05
0
0
0.5
1
1.5
2
2.5
3
0
1
2
3
4
5
IOL − Low-Level Output Current − mA
IOL − Low-Level Output Current − mA
Figure 4.
Figure 5.
5
TPS3807
www.ti.com
SBVS061A–AUGUST 2005–REVISED SEPTEMBER 2005
TYPICAL CHARACTERISTICS (continued)
At TA = +25°C, VDD = 3.3V, RLRESET = 1MΩ, and CLRESET = 50pF, unless otherwise noted.
LOW-LEVEL OUTPUT VOLTAGE
vs
LOW-LEVEL OUTPUT CURRENT
LOW-LEVEL OUTPUT VOLTAGE
vs
LOW-LEVEL OUTPUT CURRENT
0.50
0.45
1.60
1.40
1.20
V
V
= 3.3V
DD
V
V
= 6.5V
DD
= Low
SENSE
= Low
SENSE
(Expanded View)
0.40
0.35
0.30
0.25
0.20
0.15
+85°C
+85°C
+25°C
+25°C
0°C
1.00
0.80
0.60
0.40
0.20
0
−40°C
0°C
−40°C
0.10
0.05
0
0
0.5
1
1.5
2
2.5
3
0
1
2
3
4
5
IOL − Low-Level Output Current − mA
IOL − Low-Level Output Current − mA
Figure 6.
Figure 7.
LOW-LEVEL OUTPUT VOLTAGE
vs
LOW-LEVEL OUTPUT CURRENT
NORMALIZED INPUT THRESHOLD VOLTAGE
vs
FREE-AIR TEMPERATURE
0.50
0.45
1.005
V
V
= 6.5V
= Low
DD
1.004
SENSE
(Expanded View)
0.40
0.35
0.30
0.25
0.20
0.15
1.003
1.002
1.001
1
+85°C
+25°C
0°C
−40°C
0.999
0.998
0.997
0.996
0.995
0.10
0.05
0
0
0.5
1
1.5
2
2.5
3
−40
−20
0
20
40
60
80
IOL − Low-Level Output Current − mA
TA − Free-Air Temperature at VDD − °C
Figure 8.
Figure 9.
6
TPS3807
www.ti.com
SBVS061A–AUGUST 2005–REVISED SEPTEMBER 2005
TYPICAL CHARACTERISTICS (continued)
At TA = +25°C, VDD = 3.3V, RLRESET = 1MΩ, and CLRESET = 50pF, unless otherwise noted.
MINIMUM PULSE DURATION AT VDD
vs
VDD THRESHOLD OVERDRIVE VOLTAGE
MINIMUM PULSE DURATION AT SENSE
vs
SENSE THRESHOLD OVERDRIVE VOLTAGE
10
9
8
7
6
5
4
3
2
1
0
10
9
8
7
6
5
4
3
2
1
0
0
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9
LSENSE − Threshold Overdrive Voltage − V
1
0
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
−
−
V
VDD Threshold Overdrive Voltage
Figure 10.
Figure 11.
7
PACKAGE OPTION ADDENDUM
www.ti.com
21-Sep-2005
PACKAGING INFORMATION
Orderable Device
TPS3807A30DCKR
TPS3807A30DCKT
Status (1)
ACTIVE
ACTIVE
Package Package
Pins Package Eco Plan (2) Lead/Ball Finish MSL Peak Temp (3)
Qty
Type
Drawing
SC70
DCK
5
3000 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
SC70
DCK
5
250 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
(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.
(2)
Eco Plan
-
The planned eco-friendly classification: Pb-Free (RoHS) or Green (RoHS
&
no Sb/Br)
-
please check
http://www.ti.com/productcontent for the latest availability information and additional product content details.
TBD: The Pb-Free/Green conversion plan has not been defined.
Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements
for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered
at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes.
Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame
retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material)
(3)
MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder
temperature.
Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is
provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the
accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and continues to take
reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on
incoming materials and chemicals. TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited
information may not be available for release.
In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI
to Customer on an annual basis.
Addendum-Page 1
PACKAGE OPTION ADDENDUM
www.ti.com
10-Oct-2005
PACKAGING INFORMATION
Orderable Device
TPS3807A30DCKR
TPS3807A30DCKRG4
TPS3807A30DCKT
TPS3807A30DCKTG4
Status (1)
ACTIVE
ACTIVE
ACTIVE
ACTIVE
Package Package
Pins Package Eco Plan (2) Lead/Ball Finish MSL Peak Temp (3)
Qty
Type
Drawing
SC70
DCK
5
5
5
5
3000 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
SC70
SC70
SC70
DCK
DCK
DCK
3000 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
250 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
250 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
(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.
(2)
Eco Plan
-
The planned eco-friendly classification: Pb-Free (RoHS) or Green (RoHS
&
no Sb/Br)
-
please check
http://www.ti.com/productcontent for the latest availability information and additional product content details.
TBD: The Pb-Free/Green conversion plan has not been defined.
Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements
for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered
at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes.
Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame
retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material)
(3)
MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder
temperature.
Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is
provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the
accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and continues to take
reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on
incoming materials and chemicals. TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited
information may not be available for release.
In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI
to Customer on an annual basis.
Addendum-Page 1
IMPORTANT NOTICE
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