TPS3809K33DBV [TI]
3-PIN SUPPLY VOLTAGE SUPERVISORS; 3 -PIN电源电压监控器
| 型号： | TPS3809K33DBV |
| 厂家： | 
TEXAS INSTRUMENTS |
| 描述： | 3-PIN SUPPLY VOLTAGE SUPERVISORS |
| 文件： | 总8页 (文件大小：115K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
TPS3809J25, TPS3809L30, TPS3809K33, TPS3809I50
3-PIN SUPPLY VOLTAGE SUPERVISORS
SLVS228 – AUGUST 1999
TPS3809 . . . DBV PACKAGE
(TOP VIEW)
3-Pin SOT-23 Package
Supply Current of 9 µA (Typical)
1
GND
Precision Supply Voltage Monitor
2.5 V, 3 V, 3.3 V, 5 V
3
V
DD
Power-On Reset Generator With Fixed
Delay Time of 200 ms
2
RESET
Pin-For-Pin Compatible With MAX 809
Temperature Range . . . –40°C to 85°C
description
The TPS3809 family of supervisory circuits provides circuit initialization and timing supervision, primarily for
DSPs and processor-based systems.
During power-on, RESET is asserted when the supply voltage V becomes higher than 1.1 V. Thereafter, the
DD
supervisory circuit monitors V and keeps RESET active as long as V remains below the threshold voltage
DD
DD
V . An internal timer delays the return of the output to the inactive state (high) to ensure proper system reset.
IT
The delay time, t
= 200 ms, starts after V has risen above the threshold voltage V . When the supply
d(typ)
DD IT
voltage drops below the threshold voltage V , the output becomes active (low) again. No external components
IT
are required. All the devices of this family have a fixed sense-threshold voltage V set by an internal voltage
IT
divider.
The product spectrum is designed for supply voltages of 2.5 V, 3 V, 3.3 V, and 5 V. The circuits are available
in a 3-pin SOT-23. The TPS3809 devices are characterized for operation over a temperature range of –40°C
to 85°C.
typical applications
TPS76333
3.3 V
Applications Using DSPs, Microcontrollers,
or Microprocessors
5 V
IN
OUT
GND
V
DD
Wireless Communication Systems
Portable/Battery-Powered Equipment
TMS320LC54x
V
DD
TPS3809K33
RESET
Programmable Controls
Intelligent Instruments
RESET
GND
GND
Industrial Equipment
Notebook/Desktop Computers
Automotive Systems
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.
Copyright 1999, Texas Instruments Incorporated
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.
1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS3809J25, TPS3809L30, TPS3809K33, TPS3809I50
3-PIN SUPPLY VOLTAGE SUPERVISORS
SLVS228 – AUGUST 1999
AVAILABLE OPTIONS
T
DEVICE NAME
THRESHOLD VOLTAGE
MARKING
PCZI
A
†
‡
TPS3809J25DBVR
TPS3809L30DBVR
TPS3809K33DBVR
TPS3809J25DBVT
2.25 V
2.64 V
2.93 V
4.55 V
†
‡
TPS3809L30DBVT
PDAI
–40°C to 85°C
†
‡
TPS3809K33DBVT
PDBI
†
‡
TPS3809I50DBVR
TPS3809I50DBVT
PDCI
†
‡
The DBVR passive indicates tape and reel of 3000 parts.
The DBVT passive indicates tape and reel of 250 parts.
ORDERING INFORMATION
25 DBV
FUNCTION/TRUTH TABLE, TPS3809
TPS380
9
J
R
V >V
DD IT
RESET
0
1
L
Reel
Package
H
Nominal Supply Voltage
Nominal Threshold Voltage
Functionality
Family
functional block diagram
TPS3809
Reset
Logic
+
RESET
R1
_
+
V
DD
Timer
R2
GND
Oscillator
Reference
Voltage
of 1.137 V
2
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS3809J25, TPS3809L30, TPS3809K33, TPS3809I50
3-PIN SUPPLY VOLTAGE SUPERVISORS
SLVS228 – AUGUST 1999
timing diagram
V
DD
V
(NOM)
V
IT
1.1 V
t
RESET
1
0
t
t
t
d
d
For V < 1.1 V Undefined
DD
Behavior of RESET Output
†
absolute maximum ratings over operating free-air temperature (unless otherwise noted)
Supply voltage, V
(see Note1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V
DD
All other pins (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to 7 V
Maximum low output current, I
Maximum high output current, I
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –5 mA
OL
OH
Input clamp current, I (V <0 or V >V ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±20 mA
IK
OK
I
I
DD
Output clamp current, I
(V <0 or V >V ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±20 mA
O O DD
Continuous total power dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See Dissipation Rating Table
Operating free-air temperature range, T . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –40°C to 85°C
A
Storage temperature range, T . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –65°C to 150°C
stg
Soldering temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260°C
†
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.
NOTE 1: All voltage values are with respect to GND. For reliable operation the device should not be operated at 7 V for more than t=1000h
continuously.
DISSIPATION RATING TABLE
T
<25°C
DERATING FACTOR
T
= 70°C
T = 85°C
A
POWER RATING
A
A
PACKAGE
POWER RATING
ABOVE T = 25°C
POWER RATING
A
DBV
437 mW
3.5 mW/°C
280 mW
227 mW
recommended operating conditions at specified temperature range
MIN
2
MAX
6
UNIT
V
Supply voltage, V
DD
Operating free-air temperature range, T
–40
85
°C
A
3
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS3809J25, TPS3809L30, TPS3809K33, TPS3809I50
3-PIN SUPPLY VOLTAGE SUPERVISORS
SLVS228 – AUGUST 1999
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
V
DD
V
DD
V
DD
V
DD
V
DD
V
DD
V
DD
= 2.5 V to 6 V, I
= –500 µA
= –2 mA
= –4 mA
= 500 µA
= 2 mA
V
DD
V
DD
V
DD
–0.2
OH
OH
OH
OL
OL
OL
V
High-level output voltage
= 3.3 V,
= 6 V,
I
I
I
I
I
–0.4
–0.4
V
OH
OL
= 2 V to 6 V,
= 3.3 V,
= 6 V,
0.2
0.4
V
Low-level output voltage
V
V
= 4 mA
= 50 µA
0.4
Power-up reset voltage (see Note 2)
≥ 1.1 V,
I
0.2
OL
TPS3809J25
TPS3809L30
TPS3809K33
TPS3809I50
TPS3809J25
TPS3809L30
TPS3809K33
TPS3809I50
2.20
2.58
2.87
4.45
2.25
2.64
2.93
4.55
30
2.30
2.70
2.99
4.65
Negative-going input threshold
voltage (see Note 3)
V
V
T – 40°C to 85°C
A
V
IT–
35
Hysteresis
mV
hys
40
60
V
V
= 2 V, Output unconnected
= 6 V, Output unconnected
9
12
25
DD
I
Supply current
µA
DD
20
DD
C
Input capacitance
V = 0 V to V
I
5
pF
i
DD
NOTES: 2. The lowest supply voltage at which RESET becomes active. t
≥ 15 µs/V.
r, VDD
3. To ensure best stability of the threshold voltage, a bypass capacitor ( 0.1 µF ceramic) should be placed near the supply terminals.
timing requirements at R = 1 MΩ, C = 50 pF, T = 25°C
L
L
A
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
t
w
Pulse width
at V
V
DD
= V
+ 0.2 V,
V
DD
= V – 0.2 V
IT–
3
µs
DD
IT–
switching characteristics at R = 1 MΩ, C = 50 pF, T = 25°C
L
L
A
PARAMETER
TEST CONDITIONS
≥ V + 0.2 V,
MIN
TYP
MAX
UNIT
V
DD
IT–
t
t
Delay time
Propagation(delay)time, high-to-low-leveloutput
120
200
280
ms
d
See timing diagram
V
V
= V
–0.2 V,
+0.2 V
IT–
IL
IH
IT–
= V
V
DD
to RESET delay
1
µs
PHL
4
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS3809J25, TPS3809L30, TPS3809K33, TPS3809I50
3-PIN SUPPLY VOLTAGE SUPERVISORS
SLVS228 – AUGUST 1999
TYPICAL CHARACTERISTICS
SUPPLY CURRENT
vs
LOW-LEVEL OUTPUT VOLTAGE
vs
SUPPLY VOLTAGE
LOW-LEVEL OUTPUT CURRENT
2.75
2.50
2.25
2.00
1.75
1.50
1.25
1.00
0.75
0.50
0.25
0
50
40
V
DD
= 2.5 V
T = 25°C
A
30
20
T
= 25°C
A
10
TPS3809J25
0
T
A
= 85°C
–10
–20
–30
–40
–50
T
= 0°C
A
T
A
=–40°C
0
2.5
5.0
7.5
10.0
12.5
–2
0
2
4
6
V
DD
– Supply Voltage – V
I
OL
– Low-Level Output Current – mA
Figure 1
Figure 2
HIGH-LEVEL OUTPUT VOLTAGE
vs
HIGH-LEVEL OUTPUT VOLTAGE
vs
HIGH-LEVEL OUTPUT CURRENT
HIGH-LEVEL OUTPUT CURRENT
6.5
3.00
2.75
2.50
2.25
2.00
1.75
1.50
1.25
1.00
0.75
0.50
0.25
0
V
= 6 V
V
= 2.5 V
DD
DD
6.0
5.5
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
T
A
=–40°C
T
=–40°C
A
T
A
= 0°C
T = 0°C
A
T
= 85°C
A
T
A
= 85°C
T
= 25°C
A
T
= 25°C
A
0
–10
–20
–30
–40
–50
0
–2
–4
–6
–8
–10
I
– High-Level Output Current – mA
I
– High-Level Output Current – mA
OH
OH
Figure 3
Figure 4
5
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS3809J25, TPS3809L30, TPS3809K33, TPS3809I50
3-PIN SUPPLY VOLTAGE SUPERVISORS
SLVS228 – AUGUST 1999
TYPICAL CHARACTERISTICS
NORMALIZED INPUT THRESHOLD VOLTAGE
vs
MINIMUM PULSE DURATION AT V
vs
DD
FREE-AIR TEMPERATURE AT V
V
THRESHOLD OVERDRIVE VOLTAGE
DD
DD
1.001
1.000
0.999
0.998
0.997
0.996
0.995
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
V
DD
= 2.3 V
0
0.2
0.4
0.6
0.8
1.0
–40
–20
0
20
40
60
85
T
A
– Free-Air Temperature – °C
V
DD
– Threshold Overdrive Voltage – V
Figure 6
Figure 5
6
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS3809J25, TPS3809L30, TPS3809K33, TPS3809I50
3-PIN SUPPLY VOLTAGE SUPERVISORS
SLVS228 – AUGUST 1999
MECHANICAL DATA
DBV (R-PDSO-G3)
PLASTIC SMALL-OUTLINE
0,95
0,50
0,30
M
0,20
3
0,15 NOM
1,70
1,50
3,00
2,60
1
2
Gage Plane
3,00
2,80
0,25
0°–8°
0,55
0,35
Seating Plane
1,45
0,95
0,05 MIN
0,10
4073253-2/E 05/99
NOTES: A. All linear dimensions are in millimeters.
B. This drawing is subject to change without notice.
C. Body dimensions do not include mold flash or protrusion.
7
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
IMPORTANT NOTICE
Texas Instruments and its subsidiaries (TI) reserve the right to make changes to their products or to discontinue
any product or service without notice, and advise customers to obtain the latest version of relevant information
to verify, before placing orders, that information being relied on is current and complete. All products are sold
subject to the terms and conditions of sale supplied at the time of order acknowledgement, including those
pertaining to warranty, patent infringement, and limitation of liability.
TI warrants performance of its semiconductor products to the specifications applicable at the time of sale in
accordance with TI’s standard warranty. Testing and other quality control techniques are utilized to the extent
TI deems necessary to support this warranty. Specific testing of all parameters of each device is not necessarily
performed, except those mandated by government requirements.
CERTAIN APPLICATIONS USING SEMICONDUCTOR PRODUCTS MAY INVOLVE POTENTIAL RISKS OF
DEATH, PERSONAL INJURY, OR SEVERE PROPERTY OR ENVIRONMENTAL DAMAGE (“CRITICAL
APPLICATIONS”). TI SEMICONDUCTOR PRODUCTS ARE NOT DESIGNED, AUTHORIZED, OR
WARRANTED TO BE SUITABLE FOR USE IN LIFE-SUPPORT DEVICES OR SYSTEMS OR OTHER
CRITICAL APPLICATIONS. INCLUSION OF TI PRODUCTS IN SUCH APPLICATIONS IS UNDERSTOOD TO
BE FULLY AT THE CUSTOMER’S RISK.
In order to minimize risks associated with the customer’s applications, adequate design and operating
safeguards must be provided by the customer to minimize inherent or procedural hazards.
TI assumes no liability for applications assistance or customer product design. TI does not warrant or represent
that any license, either express or implied, is granted under any patent right, copyright, mask work right, or other
intellectual property right of TI covering or relating to any combination, machine, or process in which such
semiconductor products or services might be or are used. TI’s publication of information regarding any third
party’s products or services does not constitute TI’s approval, warranty or endorsement thereof.
Copyright 1999, Texas Instruments Incorporated
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