TPS3803-01 [TI]
VOLTAGE DETECTOR; 电压检测器
| 型号： | TPS3803-01 |
| 厂家： | 
TEXAS INSTRUMENTS |
| 描述： | VOLTAGE DETECTOR |
| 文件： | 总12页 (文件大小：256K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
TPS3803-01, TPS3803G15, TPS3805H33
VOLTAGE DETECTOR
SLVS392 – JULY 2001
features
typical applications
D
Single Voltage Detector (TPS3803):
Adjustable/1.5 V
D
Applications Using DSPs, Microcontrollers,
or Microprocessors
D
Dual Voltage Detector (TPS3805):
Adjustable/3.3 V
D
D
D
D
D
D
D
Wireless Communication Systems
Portable/Battery-Powered Equipment
Programmable Controls
D
D
D
High ±1.5% Threshold Voltage Accuracy
Supply Current: 3 µA Typical at V
= 3.3 V
DD
Intelligent Instruments
Push/Pull Reset Output (TPS3805)
Open-Drain Reset Output (TPS3803)
Industrial Equipment
Notebook/Desktop Computers
Automotive Systems
D
D
Temperature Range . . . –40°C to 85°C
Five-Pin SC–70 Package
DCK PACKAGE
(TOP VIEW)
description
TPS3803-01, TPS3803G15, TPS3805
The TPS3803 and TPS3805 families of supervi-
1
2
3
5
NC
SENSE
NC{
sory circuits provide circuit initialization and timing
supervision, primarily for DSPs and processor-
based systems.
GND
RESET
{
4
The TPS3803G15 device has a fixed-sense
V
DD
threshold voltage V set by an internal voltage
IT
TPS3803G15
divider, whereas the TPS3803–01 has an
adjustable SENSE input that can be configured by
two external resistors. In addition to the fixed
typical operating circuit
sense threshold monitored at V , the TPS3805
DD
devices provide a second adjustable SENSE
input. RESET is asserted in case any of the two
1.6 V 3.3 V
voltages drops below V
IT.
DV
CV
DD
DD
RESET
During power on, RESET is asserted when supply
voltage V becomes higher than 0.8 V.
R1
R2
V
RESET
TPS3805H33
SENSE
DD
DD
Thereafter, the supervisory circuit monitors V
DD
(and/or SENSE) and keeps RESET active as long
as V or SENSE remains below the threshold
TMS320VC5416
GND
GND
DD
voltage V . As soon as V
(SENSE) rises above
IT
DD
the threshold voltage V , RESET is deasserted
IT
again. The product spectrum is designed for
1.5 V, 3.3 V, and adjustable supply voltages. The
devices are available in a five-pin SC-70 package.
The TPS3803 and TPS3805 devices are
characterized for operation over a temperature
range of –40°C to 85°C.
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 2001, 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
TPS3803-01, TPS3803G15, TPS3805H33
VOLTAGE DETECTOR
SLVS392 – JULY 2001
PACKAGE INFORMATION
THRESHOLD VOLTAGE
T
DEVICE NAME
MARKING
A
V
SENSE
1.226 V
NA
DD
†
TPS3803–01DCKR
NA
AWG
AWI
†
TPS3803G15DCKR
1.40 V
3.05 V
–40_C to 85_C
†
TPS3805H33DCKR
1.226 V
AWK
†
The DCKR passive indicates tape and reel containing 3000 parts.
ordering information
TPS380
3
G
15 DCK R
Reel
Package
Nominal Supply Voltage
Nominal Threshold Voltage
Functionality
Family
Function/Truth Tables
TPS3803-01
TPS3803G15
> V RESET
SENSE > V
RESET
V
DD
IT
IT
0
1
L
0
1
L
H
H
TPS3805H33
V
DD
> V
SENSE > V
IT
RESET
IT
0
0
1
1
0
1
0
1
L
L
L
H
2
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS3803-01, TPS3803G15, TPS3805H33
VOLTAGE DETECTOR
SLVS392 – JULY 2001
functional block diagram
TPS3803G15
TPS3803–01
Device
V
DD
Supply Voltage
R1
RESET
_
+
RESET
V
DD
_
SENSE
GND
+
R2
GND
Reference
Voltage
Reference
Voltage
of 1.215 V
of 1.226 V
TPS3805
_
+
SENSE
RESET
R1
_
+
V
DD
R2
GND
Reference
Voltage
of 1.226 V
3
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS3803-01, TPS3803G15, TPS3805H33
VOLTAGE DETECTOR
SLVS392 – JULY 2001
timing requirements
V
DD
or SENSE
V
IT
+ V
hys
V
IT
0.8 V
RESET
= Undefined
Terminal Functions
TERMINAL
NAME
I/O
DESCRIPTION
NO.
GND
2
I
O
I
Ground
RESET
SENSE
NC
3
5
1
5
4
Active-low reset output (TPS3803—open–drain, TPS3805—push/pull)
Adjustable sense input
No internal connection
NC (TPS3803G15)
No internal connection
V
DD
I
Input supply voltage, fixed sense input for TPS3803G15 and TPS3805
4
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS3803-01, TPS3803G15, TPS3805H33
VOLTAGE DETECTOR
SLVS392 – JULY 2001
†
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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 mA
OL
OH
Maximum high-output current, I
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –5 mA
Input clamp current, I (V <0 or V >V ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±10 mA
IK
I
I
DD
Output clamp current, I
(V <0 or V >V ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±10 mA
OK
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 continuously operated at 7 V for more than
t=1000 h.
DISSIPATION RATING TABLE
PACKAGE
T
<25°C
DERATING FACTOR
T
= 70°C
T = 85°C
A
POWER RATING
A
A
POWER RATING
ABOVE T = 25°C
POWER RATING
A
DCK
321 mW
2.6 mW/°C
206 mW
167 mW
recommended operating conditions
MIN
1.3
MAX
UNIT
V
Supply voltage, V
DD
6
Input voltage, V
0
V
DD
+0.3
85
V
I
Operating free-air temperature range, T
–40
°C
A
5
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS3803-01, TPS3803G15, TPS3805H33
VOLTAGE DETECTOR
SLVS392 – JULY 2001
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
= 1.5 V,
= 3.3 V,
= 6 V,
I
I
I
I
I
I
= –0.5 mA
= –1.0 mA
= –1.5 mA
= 1.0 mA
= 2 mA
OH
OH
OH
OL
OL
OL
V
High-level output voltage (TPS3805 only)
0.8xV
V
OH
OL
DD
= 1.5 V,
= 3.3 V,
= 6 V,
V
Low-level output voltage
0.3
V
= 3 mA
VIT > 1.5 V, TA = 25°C
VIT ≤ 1.5 V, TA = 25°C
SENSE
0.8
1.0
V
V
Power-up reset voltage (see Note 2)
Negative-going input threshold
1.208 1.226 1.244
TPS3803G15
1.379
3.004
1.4 1.421
V
V
T
A
= –40°C to 85°C
V
IT
voltage (see Note 3)
TPS3805H33
3.05 3.096
1.2 V < V < 2.5 V
IT
15
Hysteresis
mV
hys
2.5 V < V < 3.5 V
IT
30
I
I
Input current
SENSE
–25
25
nA
nA
I
High-level output current at RESET
Open drain only
TPS3803–01
V
=V +0.2V, V
DD IT
=V
OH DD
300
OH
2
3
2
4
4
5
4
6
V
=3.3 V, output unconnected
=6 V, output unconnected
TPS3805,
TPS3803G15
DD
DD
I
Supply current
µA
DD
TPS3803–01
V
TPS3805,
TPS3803G15
C
Input capacitance
V = 0 V to V
I DD
1
pF
I
NOTES: 2. The lowest supply voltage at which RESET (VOL(max) = 0.2 V, IOL = 50 µA) becomes active. t
r(V
≥ 15 µs/V
DD
)
3. To ensure the best stability of the threshold voltage, place a bypass capacitor (ceramic, 0.1 µF) near the supply terminals.
timing requirements at R = 1 MΩ, C = 50 pF, T = –40°C to 85°C
L
L
A
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
At V
DD
t
w
Pulse width
V
IH
= 1.05 x V , V = 0.95 x V
IT IL IT
5.5
µs
At SENSE
switching characteristics at R = 1 MΩ, C = 50 pF, T = –40°C to 85°C
L
L
A
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
V
to RESET delay
Propagation (delay) time,
high-to-low-level output
DD
t
t
5
100
PHL
V
IH
V
IL
= 1.05 x V
= 0.95 x V
,
IT
IT
SENSE to RESET delay
to RESET delay
µs
V
Propagation (delay) time,
low-to-high-level output
DD
SENSE to RESET delay
5
100
PLH
6
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS3803-01, TPS3803G15, TPS3805H33
VOLTAGE DETECTOR
SLVS392 – JULY 2001
TYPICAL CHARACTERISTICS
TPS3805H33
SUPPLY CURRENT
vs
TPS3803–01
SUPPLY CURRENT
vs
SUPPLY VOLTAGE
SUPPLY VOLTAGE
6
5
4
3
2
1
0
3
2.5
2
SENSE = GND
RESET = Open
1.5
1
85°C
85°C
25°C
25°C
0°C
0°C
–40°C
–40°C
0.5
0
SENSE = GND
RESET = Open
0
0.5
1
1.5
V
2
2.5
3
3.5
4
4.5
5
5.5
6
0
0.5
1
1.5
V
2
2.5
3
3.5
4
4.5
5
5.5
6
– Supply Voltage – V
– Supply Voltage – V
DD
DD
Figure 1
Figure 2
LOW-LEVEL OUTPUT VOLTAGE
vs
LOW-LEVEL OUTPUT VOLTAGE
vs
LOW-LEVEL OUTPUT CURRENT
LOW-LEVEL OUTPUT CURRENT
1.60
1.40
1.20
0.50
(Expanded View)
V
V
= 1.5 V
DD
(SENSE)
V
= 1.5 V
0.45
DD
= Low
V
= Low
(SENSE)
0.40
0.35
0.30
0.25
0.20
0.15
0.10
0.05
0
85°C
85°C
25°C
25°C
1.00
0.80
0.60
0°C
0°C
–40°C
–40°C
0.40
0.20
0
0
1
2
3
4
5
0
0.5
OL
1
1.5
2
2.5
3
I
– Low-Level Output Current – mA
I
– Low-Level Output Current – mA
OL
Figure 3
Figure 4
7
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS3803-01, TPS3803G15, TPS3805H33
VOLTAGE DETECTOR
SLVS392 – JULY 2001
TYPICAL CHARACTERISTICS
LOW-LEVEL OUTPUT VOLTAGE
vs
LOW-LEVEL OUTPUT VOLTAGE
vs
LOW-LEVEL OUTPUT CURRENT
LOW-LEVEL OUTPUT CURRENT
1
0.9
0.8
0.7
0.6
3.5
3
V
V
= 6 V
DD
(SENSE)
V
V
= 6 V
DD
= Low
= Low
(SENSE)
85°C
25°C
0°C
85°C
25°C
0°C
2.5
2
–40°C
0.5
–40°C
1.5
0.4
0.3
1
0.5
0
0.2
(Expanded View)
0.1
0
0
2
4
6
8
10 12 14 16 18 20
0
5
10 15 20 25 30 35 40 45 50
I
– Low-Level Output Current – mA
I
– Low-Level Output Current – mA
OL
OL
Figure 5
Figure 6
TPS3805H33
TPS3805H33
HIGH-LEVEL OUTPUT VOLTAGE
vs
HIGH-LEVEL OUTPUT CURRENT
HIGH-LEVEL OUTPUT VOLTAGE
vs
HIGH-LEVEL OUTPUT CURRENT
3.3
3.5
V
= 3.3 V
DD
V
= 3.3 V
DD
3.2
3.1
3
3.25
3
V
= High
V
= High
(SENSE)
(SENSE)
2.75
2.5
2.25
2
85°C
85°C
25°C
2.9
2.8
25°C
0°C
0°C
–40°C
–40°C
2.7
2.6
2.5
1.75
1.5
(Expanded View)
–5
–4
–3
–2
–1
0
–14 –12
–10
–8
–6
–4
–2
0
I – High-Level Output Current – mA
OH
I
– High-Level Output Current – mA
OH
Figure 7
Figure 8
8
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS3803-01, TPS3803G15, TPS3805H33
VOLTAGE DETECTOR
SLVS392 – JULY 2001
TYPICAL CHARACTERISTICS
TPS3805H33
HIGH-LEVEL OUTPUT VOLTAGE
vs
TPS3805H33
HIGH-LEVEL OUTPUT VOLTAGE
vs
HIGH-LEVEL OUTPUT CURRENT
HIGH-LEVEL OUTPUT CURRENT
6
6
5.8
5.6
5.4
V = 6 V
DD
V
(SENSE)
V
= 6 V
DD
= High
V
= High
5.5
5
(SENSE)
85°C
25°C
85°C
25°C
4.5
4
5.2
5
0°C
–40°C
0°C
3.5
3
(Expanded View)
4.8
4.6
–40°C
–4
–3
–2
–1
0
–14 –12
–10
–8
–6
–4
–2
0
I
– High-Level Output Current – mA
I
– High-Level Output Current – mA
OH
OH
Figure 9
Figure 10
TPS3803–01
NORMALIZED INPUT THRESHOLD VOLTAGE
MINIMUM PULSE DURATION AT V
vs
DD
vs
FREE-AIR TEMPERATURE AT SENSE
V
THRESHOLD OVERDRIVE VOLTAGE
DD
10
9
8
7
6
5
4
3
2
1
0
1.0020
1.0015
V
= 6 V
DD
RESET = 100 kΩ to V
DD
1.0010
1.0005
1.0000
0.9995
0.9990
0.9985
0.9980
–40
–20
0
20
40
60
80
0
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9
1
T
A
– Free-Air Temperature at SENSE – °C
V
DD
– Threshold Overdrive Voltage – V
Figure 11
Figure 12
9
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS3803-01, TPS3803G15, TPS3805H33
VOLTAGE DETECTOR
SLVS392 – JULY 2001
TYPICAL CHARACTERISTICS
MINIMUM PULSE DURATION AT SENSE
vs
SENSE THRESHOLD OVERDRIVE VOLTAGE
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
1
SENSE – Threshold Overdrive Voltage – V
Figure 13
10
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS3803-01, TPS3803G15, TPS3805H33
VOLTAGE DETECTOR
SLVS392 – JULY 2001
MECHANICAL DATA
DCK (R-PDSO-G5)
PLASTIC SMALL-OUTLINE
0,30
0,15
M
0,10
0,65
5
4
0,13 NOM
1,40 2,30
1,10 1,90
1
3
Gage Plane
2,15
1,85
0,15
0°–8°
0,46
0,26
Seating Plane
0,10
1,10
0,80
0,10
0,00
4093553/B 06/99
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.
D. Falls within JEDEC MO-203
11
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
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Copyright 2001, Texas Instruments Incorporated
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