TI TPS3801L30DCK

TPS3801J25, TPS3801L30, TPS3801K33, TPS3801I50
ULTRA-SMALL SUPPLY VOLTAGE SUPERVISORS
SLVS219 – AUGUST 1999
D
D
D
D
D
D
TPS3801 . . . DCK PACKAGE
(TOP VIEW)
5-Pin SC-70 (SOT-323) Package
Supply Current of 9 µA (Typ)
Power-On Reset Generator With Fixed
Delay Time of 200 ms
Precision Supply Voltage Monitor 2.5 V, 3 V,
3.3 V, 5 V
Manual Reset Input
Temperature Range . . . –40°C to 85°C
GND
1
GND
2
RESET
3
5
MR
4
VDD
description
The TPS3801 family of supervisory circuits provide circuit initialization and timing supervision, primarily for
DSPs and processor-based systems.
During power-on, RESET is asserted when the supply voltage VDD becomes higher than 1.1 V. Thereafter, the
supervisory circuit monitors VDD and keeps RESET active as long as VDD 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, td(typ) = 200 ms, starts after VDD has risen above the threshold voltage VIT. When the supply
voltage drops below the threshold voltage VIT, the output becomes active (low) again. No external components
are required. All the devices of this family have a fixed sense-threshold voltage VIT set by an internal voltage
divider.
The TPS3801 devices incorporate a manual reset input, MR. A low level at MR causes RESET to become
active.
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 5-pin SC-70 (SOT-323) package which is only about half the size of a 5-pin SOT-23 package.
The TPS3801 devices are characterized for operation over a temperature range of –40°C to 85°C.
typical applications
D
VDD = 3.3 V
VDD
100 nF
VDD
TMS320LC54x
TPS3801K33
MR
RESET
RESET
GND
GND
D
D
D
D
D
D
D
Applications Using DSPs, Microcontrollers,
or Microprocessors
Wireless Communication Systems
Portable/Battery-Powered Equipment
Programmable Controls
Intelligent Instruments
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.
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
1
TPS3801J25, TPS3801L30, TPS3801K33, TPS3801I50
ULTRA-SMALL SUPPLY VOLTAGE SUPERVISORS
SLVS219 – AUGUST 1999
AVAILABLE OPTIONS
TA
–40°C
40°C to 85°C
DEVICE NAME
THRESHOLD VOLTAGE
MARKING
TPS3801J25DCK
2.25 V
NJA
TPS3801L30DCK
2.64 V
NPA
TPS3801K33DCK
2.93 V
NWA
TPS3801I50DCK
4.55 V
NSA
FUNCTION/TRUTH TABLE, TPS3801
MR
VDD>VIT
RESET
L
0
L
L
1
L
H
0
L
H
1
H
ORDERING INFORMATION
TPS380
1
J
25 DCK R
Reel
Package
Nominal Supply Voltage
Nominal Threshold Voltage
Functionality
Family
functional block diagram
TPS3801
MR
30 kΩ
R1
_
VDD
Reset
Logic
+
Timer
+
R2
GND
Oscillator
Reference
Voltage
of 1.137 V
2
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
RESET
TPS3801J25, TPS3801L30, TPS3801K33, TPS3801I50
ULTRA-SMALL SUPPLY VOLTAGE SUPERVISORS
SLVS219 – AUGUST 1999
timing diagram
VDD
V(NOM)
VIT
1.1 V
t
MR
1
0
t
ÎÎ
ÎÎ
ÎÎ
ÎÎ
ÎÎ
RESET
1
0
Î
Î
Î
Î
td
td
t
td
Undefined Behavior of
RESET Output For VDD< 1.1 V
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
3
TPS3801J25, TPS3801L30, TPS3801K33, TPS3801I50
ULTRA-SMALL SUPPLY VOLTAGE SUPERVISORS
SLVS219 – AUGUST 1999
absolute maximum ratings over operating free-air temperature (unless otherwise noted)†
Supply voltage, VDD (see Note1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V
All other pins (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to 7 V
Maximum low output current, IOL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 mA
Maximum high output current, IOH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –5 mA
Input clamp current, IIK (VI<0 or VI>VDD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±20 mA
Output clamp current, IOK (VO<0 or VO>VDD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±20 mA
Continuous total power dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See Dissipation Rating Table
Operating free-air temperature range, TA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –40°C to 85°C
Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –65°C to 150°C
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
PACKAGE
TA <25°C
POWER RATING
DERATING FACTOR
ABOVE TA = 25°C
TA = 70°C
POWER RATING
TA = 85°C
POWER RATING
DCK
321 mW
2.6 mW/°C
206 mW
167 mW
recommended operating conditions at specified temperature range
MIN
Supply voltage, VDD
Input voltage, VI
High-level input voltage, VIH
MAX
6
V
0
VDD+0.3
V
0.7×VDD
Low-level input voltage, VIL
V
0.3×VDD
100
Input transition rise and fall rate at MR, ∆t/∆V
Operating free-air temperature range, TA
4
UNIT
2
–40
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
85
V
ns/V
°C
TPS3801J25, TPS3801L30, TPS3801K33, TPS3801I50
ULTRA-SMALL SUPPLY VOLTAGE SUPERVISORS
SLVS219 – AUGUST 1999
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
VOH
VOL
VIT
IT–
TEST CONDITIONS
VDD = 2.5 V to 6 V IOH = –500 µA
VDD = 3.3 V
IOH = –2 mA
VDD = 6 V
IOH = –4 mA
High-level output voltage
Low-level output voltage
VDD = 2 V to 6 V,
VDD = 3.3 V,
Power-up reset voltage (see Note 2)
VDD = 6 V,
VDD ≥ 1.1 V,
Negative-going
g
g g input threshold
voltage (see Note 3)
MIN
IIH
IIL
IDD
Ci
Hysteresis
High-level input current
IOL = 500 µA
0.2
IOL = 2 mA
IOL = 4 mA
IOL = 50 µA
0.4
0.2
2.20
2.25
2.30
2.58
2.64
2.70
2.87
2.93
2.99
4.45
4.55
4.65
TA– 40°C to +85°C
TPS3801J25
30
TPS3801L30
35
TPS3801K33
40
TPS3801I50
60
MR = 0.7×VDD,
Supply current
VDD = 6 V
VDD = 6 V
V
V
mV
–40
–60
–100
–130
–200
–340
VDD = 2 V,
MR and output unconnected
9
12
VDD = 6 V,
MR and output unconnected
20
25
MR = 0 V,
V
0.4
TPS3801J25
TPS3801K33
UNIT
V
TPS3801L30
MR
Low-level input current
MAX
VDD –0.4
TPS3801I50
Vh
hys
TYP
VDD –0.2
VDD –0.4
µA
µA
Input capacitance
VI = 0 V to VDD
5
pF
NOTES: 2. The lowest supply voltage at which RESET becomes active. tr, VDD ≥ 15 µs/V.
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 RL = 1 MΩ, CL = 50 pF, TA = 25°C
PARAMETER
tw
Pulse width
TEST CONDITIONS
at VDD
at MR
VDD = VIT– + 0.2 V,
VDD ≥ VIT– + 0.2V,
MIN
VDD = VIT– –0.2 V
VIL = 0.3 × VDD, VIH = 0.7 × VDD
TYP
MAX
UNIT
3
µs
100
ns
switching characteristics at RL = 1 MΩ, CL = 50 pF, TA = 25°C
PARAMETER
td
tPHL
TEST CONDITIONS
VDD ≥ VIT– + 0.2 V,
MR ≥ 0.7 × VDD
See timing diagram
Delay time
Propagation (delay) time, high-to-low-level
output
MR to RESET delay
VDD to RESET delay
POST OFFICE BOX 655303
VDD ≥ VIT– + 0.2 V,
VIL = 0.3 × VDD,
VIH = 0.7 × VDD
VIL = VIT– – 0.2 V,
VIH = VIT– + 0.2 V
• DALLAS, TEXAS 75265
MIN
120
TYP
200
MAX
280
UNIT
ms
15
ns
1
µs
5
TPS3801J25, TPS3801L30, TPS3801K33, TPS3801I50
ULTRA-SMALL SUPPLY VOLTAGE SUPERVISORS
SLVS219 – AUGUST 1999
TYPICAL CHARACTERISTICS
LOW-LEVEL OUTPUT VOLTAGE
vs
LOW-LEVEL OUTPUT CURRENT
SUPPLY CURRENT
vs
SUPPLY VOLTAGE
2.75
50
VDD = 2.5 V
MR = OPEN
MR = OPEN
TA = 25°C
40
2.25
30
2.00
TA = 25°C
1.75
1.50
TA = 85°C
1.25
TA = 0°C
1.00
0.75
TA = -40°C
0.50
I DD – Supply Current – µ A
VOL – Low-Level Output Voltage – V
2.50
20
10
TPS3801J25
0
–10
–20
–30
0.25
–40
0.00
0.00
2.50
5.00
7.50
10.00
–50
12.50
–2
IOL – Low-Level Output Current – mA
4
6
Figure 2
HIGH-LEVEL OUTPUT VOLTAGE
vs
HIGH-LEVEL OUTPUT CURRENT
HIGH-LEVEL OUTPUT VOLTAGE
vs
HIGH-LEVEL OUTPUT CURRENT
6.50
3.00
VDD = 6.0 V
MR = OPEN
5.50
5.00
4.50
TA = -40°C
4.00
3.50
TA = 0°C
3.00
2.50
TA = 85°C
2.00
1.50
1.00
VDD = 2.5 V
MR = OPEN
2.75
TA = 25°C
0.50
VOH – High-Level Output Voltage – V
6.00
VOH – High-Level Output Voltage – V
2
VDD – Supply Voltage – V
Figure 1
2.50
2.25
2.00
TA = -40°C
1.75
1.50
TA = 0°C
1.25
1.00
TA = 85°C
0.75
0.50
TA = 25°C
0.25
0.00
0
–10
–20
–30
–40
IOH – High-Level Output Current – mA
–50
0.00
0
–2
–4
–6
–8
IOH – High-Level Output Current – mA
Figure 4
Figure 3
6
0
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
–10
TPS3801J25, TPS3801L30, TPS3801K33, TPS3801I50
ULTRA-SMALL SUPPLY VOLTAGE SUPERVISORS
SLVS219 – AUGUST 1999
TYPICAL CHARACTERISTICS
Normalized Input Threshold Voltage VIT (TA ), VIT (25 C)
INPUT CURRENT
vs
INPUT VOLTAGE AT MR
100
VDD = 6 V
TA = 25°C
–100
–200
–300
–400
–500
–2
0
2
4
6
1.001
VDD = 2.3 V
MR = OPEN
1.000
0.999
0.998
0.997
0.996
0.995
–40
–20
VI – Input Voltage at MR – V
0
20
40
60
TA – Free-Air Temperature – °C
Figure 5
85
Figure 6
MINIMUM PULSE DURATION AT VDD
vs
VDD THRESHOLD OVERDRIVE VOLTAGE
3.5
tw – Minimum Pulse Duration at VDD in µs
I – Input Current – µ A
I
0
NORMALIZED INTPUT THRESHOLD VOLTAGE
vs
FREE-AIR TEMPERATURE AT VDD
MR = OPEN
3.0
2.5
2.0
1.5
1.0
0.5
0.0
0.0
0.2
0.4
0.6
0.8
1.0
VDD – Threshold Overdrive Voltage – V
Figure 7
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
7
TPS3801J25, TPS3801L30, TPS3801K33, TPS3801I50
ULTRA-SMALL SUPPLY VOLTAGE SUPERVISORS
SLVS219 – AUGUST 1999
MECHANICAL DATA
DCK (R-PDSO-G5)
PLASTIC SMALL-OUTLINE PACKAGE
0,30
0,15
5
0,10 M
4
1,35
1,15
1
0,13 NOM
2,20
2,00
3
Gage Plane
0,65
2,20
1,80
0,15
0°– 8°
0,46
0,26
Seating Plane
1,00
0,80
0,10
0,00
0,10
4093553/A 11/96
NOTES: A. All linear dimensions are in millimeters.
B. This drawing is subject to change without notice.
C. Body dimensions include mold flash or protrusion.
8
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
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accordance with TI’s standard warranty. Testing and other quality control techniques are utilized to the extent
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Copyright  1999, Texas Instruments Incorporated