TPS3800-xx, TPS3801-xx, TPS3802-xx
ULTRA-SMALL SUPPLY VOLTAGE SUPERVISORS
SLVS219B – AUGUST 1999 – REVISED APRIL 2002
1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
features
D5-Pin SC-70 (SOT-323) Package
DSupply Current of 9 µA (Typ)
DPower-On Reset Generator With Fixed
Delay Time
– TPS3800 = 100 ms
– TPS3801 = 200 ms
– TPS3802 = 400 ms
DPrecision Supply Voltage Monitor 1.8 V,
2.5 V, 2.7 V, 3 V, 3.3 V, 5 V, and Adjustable
DManual Reset Input (Except TPS3801–01)
DTemperature Range ...–40°C to 85°C
applications
DApplications Using DSPs, Microcontrollers,
or Microprocessors
DWireless Communication Systems
DPortable/Battery-Powered Equipment
DProgrammable Controls
DIntelligent Instruments
DIndustrial Equipment
DNotebook/Desktop Computers
DAutomotive Systems
description
The TPS380x family of supervisory circuits
provide circuit initialization and timing supervi-
sion, 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
(or SENSE) and keeps RESET active as long as
VDD (or SENSE) 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) starts
after VDD (or SENSE) 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, except for the
TPS3801–01, which can be customized with two
external resistors at the SENSE input.
The TPS380x devices, except the TPS3801–01,
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 1.8 V, 2.5 V, 2.7 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 TPS3801–01 can monitor voltages as low as 1.14 V , depending on the configuration of the external resistor
divider.
The TPS380x devices are characterized for operation over a temperature range of –40°C to 85°C.
Copyright 2002, 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.
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.
3
2
4
5
TPS380x . . . DCK PACKAGE
(TOP VIEW)
1
RESET
GND
MR
VDD
GND
3
2
4
5
TPS3801–01 . . . DCK PACKAGE
(TOP VIEW)
1
RESET
GND
SENSE
VDD
GND
typical applications
VDD = 1.8 V
100 nF
TPS3801E18
TMS320VC5420
GND
GND
MR RESET RESET
CVDD
VDD
TPS3800-xx, TPS3801-xx, TPS3802-xx
ULTRA-SMALL SUPPLY VOLTAGE SUPERVISORS
SLVS219B – AUGUST 1999 – REVISED APRIL 2002
2POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
AVAILABLE OPTIONS
TADEVICE NAME THRESHOLD VOLTAGE TYP DELAY
TIME MARKING
TPS3801-01DCK 1.14 V 200 ms ARF
TPS3801E18DCK 1.71 V 200 ms ARE
TPS3801J25DCK 2.25 V 200 ms NJA
TPS3800G27DCK 2.5 V 95 ms ARI
40°Cto85°C
TPS3801L30DCK 2.64 V 200 ms NPA
–40°C to 85°CTPS3801K33DCK 2.93 V 200 ms NWA
TPS3802L30DCK 2.64 V 380 ms ASA
TPS3802K33DCK 2.93 V 380 ms ARK
TPS3801T50DCK 4 V 25 ms AVI
TPS3801I50DCK 4.55 V 200 ms NSA
25
Family
J1TPS380 RDCK
Reel
Package
Nominal Supply Voltage
Nominal Threshold Voltage
Functionality
FUNCTION/TRUTH TABLE, TPS380x ORDERING INFORMATION
L
RESET
H
L
L
0
VDD>VIT
1
0
1
L
MR
H
H
L
functional block diagram
30 kΩ
R2
_
+
R1
VDD
GND
RESET
MR
TPS380x
Oscillator
Reference
Voltage
of 1.14 V
Reset
Logic
+
Timer
TPS3800-xx, TPS3801-xx, TPS3802-xx
ULTRA-SMALL SUPPLY VOLTAGE SUPERVISORS
SLVS219B – AUGUST 1999 – REVISED APRIL 2002
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POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
functional block diagram (continued)
_
+
SENSE
RESET
TPS3801–01
Oscillator
Reference
Voltage
of 1.14 V
Reset
Logic
+
Timer
VDD Device Supply
Voltage
timing diagram
td
t
VDD
ÎÎ
ÎÎ
ÎÎ
ÎÎ
Î
Î
Î
Î
V(NOM)
VIT
1.1 V
MR
1
0
1
0
t
t
Undefined Behavior of
RESET Output For VDD < 1.1 V
RESET
tdtd
NOTE: RESET should not be forced high during the power-up sequence (until VDD > 1.1 V).
TPS3800-xx, TPS3801-xx, TPS3802-xx
ULTRA-SMALL SUPPLY VOLTAGE SUPERVISORS
SLVS219B – AUGUST 1999 – REVISED APRIL 2002
4POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
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 af fect 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°CTA = 70°C
POWER RATING TA = 85°C
POWER RATING
DCK 321 mW 2.6 mW/°C206 mW 167 mW
recommended operating conditions at specified temperature range
MIN MAX UNIT
Supply voltage, VDD
TPS3801J25, TPS3801L30,
TPS3801K33, TPS3801I50,
TPS3801T50 2 6 V
All other devices 1.6 4
Input voltage, VI0 VDD+0.3 V
High-level input voltage, VIH 0.7×VDD V
Low-level input voltage, VIL 0.3×VDD V
Input transition rise and fall rate at MR, ∆t/∆V 100 ns/V
Operating free-air temperature range, TA–40 85 °C
TPS3800-xx, TPS3801-xx, TPS3802-xx
ULTRA-SMALL SUPPLY VOLTAGE SUPERVISORS
SLVS219B – AUGUST 1999 – REVISED APRIL 2002
5
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
VDD = 1.6 V to 6 V IOH = –500 µA VDD –0.2
VOH High-level output voltage VDD = 3.3 V IOH = –2 mA VDD –0.4 V
VOH
High level
out ut
voltage
VDD = 6 V IOH = –4 mA (see Note 4) VDD –0.4
V
VDD = 1.6 V to 6 V, IOL = 500 µA 0.2
VOL Low-level output voltage VDD = 3.3 V, IOL = 2 mA 0.4 V
VOL
Low level
out ut
voltage
VDD = 6 V, IOL = 4 mA (see Note 4) 0.4
V
Power-up reset voltage (see Note 2) VDD ≥1.1 V, IOL = 50 µA 0.2 V
TPS380x-01 1.117 1.14 1.163
TPS380xE18 1.67 1.71 1.75
Nti iit
TPS380xJ25 2.2 2.25 2.3
V
Negative-going input
threshold voltage
TPS380xG27
T 40°Cto85°C
2.45 2.5 2.55
V
VIT–threshold voltage
(see Note 3)
TPS380xL30 TA = –40°C to 85°C2.58 2.64 2.7 V
(
see
N
ote
3)
TPS380xK33 2.87 2.93 2.99
TPS380xI50 4.45 4.55 4.65
TPS380xT50 3.92 4 4.08
TPS380x-01 15
TPS380xx18 25
TPS380xx25 30
Vh
y
sHysteresis TPS380xx27 35 mV
Vhys
Hysteresis
TPS380xx30 35
mV
TPS380xx33 40
TPS380xx50 60
IIH High-level input current
MR = 0.7×VDD, VDD = 6 V –40 –60 –100
A
IIL Low-level input current MR MR = 0 V, VDD = 6 V –130 –200 –340 µA
IIInput current SENSE –25 25 nA
TPS3801J25,
TPS3801L30,
VDD = 2 V, MR and output unconnected 9 12
TPS3801K33,
TPS3801I50,
TPS3801T50 VDD = 6 V, MR and output unconnected 20 25
I
DD
Suppl
y
current
VDD = 1.6 V,
SENSE = 0 V to VDD, output unconnected 7 10
µ
A
IDD
Su ly
current
TPS3801-01 VDD = 4 V,
SENSE = 0 V to VDD, output unconnected 9 12
µA
TPS3801E18,
TPS3800G27, VDD = 1.6 V, MR and output unconnected 811
,
TPS3802K33,
TPS3802L30 VDD = 4 V, MR and output unconnected 13 18
CiInput 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. T o ensure the best stability of the threshold voltage, a bypass capacitor (0.1-µF ceramic) should be placed near the supply terminals.
4. Only valid for the TPS3801J25, TPS3801L30, TPS3801K33, TPS3801I50, and TPS3801T50.
TPS3800-xx, TPS3801-xx, TPS3802-xx
ULTRA-SMALL SUPPLY VOLTAGE SUPERVISORS
SLVS219B – AUGUST 1999 – REVISED APRIL 2002
6POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
timing requirements at RL = 1 MΩ, CL = 50 pF, TA = 25°C
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
at SENSE VDD = 1.6 V, VIH = 1.1 × VIT–, VIL = 0.9 × VIT–1
s
twPulse width at VDD VDD = VIT– + 0.2 V, VDD = VIT– –0.2 V 3µs
w
at MR VDD ≥VIT– + 0.2 V, VIL = 0.3 × VDD, VIH = 0.7 × VDD 100 ns
switching characteristics at RL = 1 MΩ, CL = 50 pF, TA = 25°C
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
TPS3801T50 15 25 35
t
Delay time
TPS3800 VDD ≥VIT– + 0.2 V,
MR ≥07×VDD
60 95 140
ms
tdDelay time TPS3801 MR ≥0.7 × VDD
See
timin
g
d
i
ag
r
a
m120 200 280 ms
TPS3802
See
timing
diagram
240 380 560
tPHL
Propagation (delay) time, high-to-low-level MR to RESET delay VDD ≥VIT– + 0.2 V,
VIL = 0.3 × VDD,
VIH = 0.7 ×VDD 15 ns
tPHL
output VDD to RESET delay VIL =V
IT– – 0.2 V,
1
s
SENSE to RESET
VIL
VIT
–
0.2
V,
VIH = VIT– + 0.2 V 1µs
TYPICAL CHARACTERISTICS
Figure 1
LOW-LEVEL OUTPUT VOLTAGE
vs
LOW-LEVEL OUTPUT CURRENT
0.00
0.25
0.50
0.75
1.00
1.25
1.50
1.75
2.00
2.25
2.50
2.75
0.0 2.5 5.0 7.5 10.0 12.5
VDD = 2.5 V
MR = OPEN
TA = 85°C
TA = -40°C
IOL – Low-Level Output Current – mA
OL
V– Low-Level Output Voltage – V
TA = 25°C
TA = 0°C
Figure 2
SUPPLY CURRENT
vs
SUPPLY VOLTAGE
–50
–40
–30
–20
–10
0
10
20
30
40
50
–20246
MR = OPEN
TA = 25°C
VDD – Supply Voltage – V
DD
I Supply Current – –Aµ
TPS3801J25
TPS3800-xx, TPS3801-xx, TPS3802-xx
ULTRA-SMALL SUPPLY VOLTAGE SUPERVISORS
SLVS219B – AUGUST 1999 – REVISED APRIL 2002
7
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TYPICAL CHARACTERISTICS
Figure 3
HIGH-LEVEL OUTPUT VOLTAGE
vs
HIGH-LEVEL OUTPUT CURRENT
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
6.0
6.5
IOH – High-Level Output Current – mA
VDD = 6.0 V
MR = OPEN
TA = 85°C
0–10 –20 –30 –40 –50
VOH– High-Level Output Voltage – V
TA = -40°C
TA = 0°C
TA = 25°C
Figure 4
HIGH-LEVEL OUTPUT VOLTAGE
vs
HIGH-LEVEL OUTPUT CURRENT
0.00
0.25
0.50
0.75
1.00
1.25
1.50
1.75
2.00
2.25
2.50
2.75
3.00
IOH – High-Level Output Current – mA
VDD = 2.5 V
MR = OPEN
TA = 85°C
0–2–4–6–8–10
VOH– High-Level Output Voltage – V
TA = -40°C
TA = 25°C
TA = 0°C
Figure 5
INPUT CURRENT
vs
INPUT VOLTAGE AT MR
–500
–400
–300
–200
–100
0
100
–20246
VDD = 6 V
TA = 25°C
VI – Input Voltage at MR – V
– Input Current – A
IIµ
Figure 6
MR = OPEN
1.5
1
0.5
00 0.2 0.4 0.6
2
3
3.5
0.8 1
2.5
MINIMUM PULSE DURATION AT VDD
vs
VDD THRESHOLD OVERDRIVE VOLTAGE
VDD Threshold Overdrive Voltage – V
– Minimum Pulse Duration at µs
VDD–tw
TPS3800-xx, TPS3801-xx, TPS3802-xx
ULTRA-SMALL SUPPLY VOLTAGE SUPERVISORS
SLVS219B – AUGUST 1999 – REVISED APRIL 2002
8POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TYPICAL CHARACTERISTICS
Figure 7
0.995
0.996
0.997
0.998
0.999
1.000
1.001
NORMALIZED INTPUT THRESHOLD VOLTAGE
vs
FREE-AIR TEMPERATURE AT VDD
TA – Free-Air Temperature at VDD – °C
–40 –20 0 20 40
Normalized Input Threshold Voltage
60 85
VDD = 2.3 V
MR = OPEN
C
°
VIT (TA)V
IT (25 )
TPS3801
Figure 8
0.988
0.990
0.992
0.994
0.996
0.998
1
1.002
1.004
1.006
–40 –200 20406080
TPS3801–01
TPS3801E18
TPS3800
TPS3802
– Normalized Input Threshold Voltage – V
NORMALIZED INPUT THRESHOLD VOLTAGE
vs
FREE-AIR TEMPERATURE AT VDD
VIT
TA – Free-Air Temperature at VDD – °C
TPS3800-xx, TPS3801-xx, TPS3802-xx
ULTRA-SMALL SUPPLY VOLTAGE SUPERVISORS
SLVS219B – AUGUST 1999 – REVISED APRIL 2002
9
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
MECHANICAL DATA
DCK (R-PDSO-G5) PLASTIC SMALL-OUTLINE PACKAGE
0,46
0,15
0,26
Gage Plane
0,13 NOM
4093553/A 1 1/96
2,20
2,00
0,15
0,30
1,35
1,15
45
1,80
2,20
1 3
1,00
0,80 0,10
0,00
Seating Plane
0,10
0,65
M
0,10
0°–ā8°
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.
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Copyright 2002, Texas Instruments Incorporated