Datasheet TPS3801L30DCKR, TPS3801K33DCKR, TPS3801J25DCKR, TPS3801I50DCKR Datasheet (Texas Instruments)

TPS3801J25, TPS3801L30, TPS3801K33, TPS3801I50

ULTRA-SMALL SUPPLY VOLTAGE SUPERVISORS

SLVS219 – AUGUST 1999

D

5-Pin SC-70 (SOT-323) Package

D

Supply Current of 9 µA (Typ)

D

Power-On Reset Generator With Fixed

TPS3801 . . . DCK PACKAGE

(TOP VIEW)

GND

1

MR

5

Delay Time of 200 ms

D

Precision Supply Voltage Monitor 2.5 V, 3 V,

3.3 V, 5 V

D

Manual Reset Input

D

T emperature Range ...–40°C to 85°C

GND

RESET

2

3

4

V

DD

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 V
supervisory circuit monitors V

and keeps RESET active as long as VDD remains below the threshold voltage

DD

VIT. An internal timer delays the return of the output to the inactive state (high) to ensure proper system reset.
The delay time, t

= 200 ms, starts after V

d(typ)

has risen above the threshold voltage V

DD

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 V
divider.

The TPS3801 devices incorporate a manual reset input, MR. A low level at MR causes RESET to become
active.

becomes higher than 1.1 V. Thereafter , the

DD

. When the supply

IT

set by an internal voltage

IT

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

100 nF

V

DD

TPS3801K33

RESET RESET

MR

GND

V

DD

TMS320LC54x

GND

Applications Using DSPs, Microcontrollers,
or Microprocessors

D

Wireless Communication Systems

D

Portable/Battery-Powered Equipment

D

Programmable Controls

D

Intelligent Instruments

D

Industrial Equipment

D

Notebook/Desktop Computers

D

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.

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.

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Copyright  1999, Texas Instruments Incorporated

1

TPS3801J25, TPS3801L30, TPS3801K33, TPS3801I50

40°C to 85°C

ULTRA-SMALL SUPPLY VOLTAGE SUPERVISORS

SLVS219 – AUGUST 1999

AVAILABLE OPTIONS

T

A

°

–

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

L
L
H
H

Family

VDD>V

0
1
0
1

ORDERING INFORMATION

25

J1TPS380 RDCK

Nominal Threshold Voltage

Functionality

RESET

IT

L
L
L
H

Reel

Package

Nominal Supply Voltage

functional block diagram

MR

V

DD

GND

30 kΩ

R1

R2

TPS3801

Reference

Voltage

of 1.137 V

Reset
Logic

+

_
+

Timer

Oscillator

RESET

2

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ÎÎ

ÎÎ

ÎÎ

ÎÎ

timing diagram

V

(NOM)

V

DD

V

1.1 V

MR

TPS3801J25, TPS3801L30, TPS3801K33, TPS3801I50

ULTRA-SMALL SUPPLY VOLTAGE SUPERVISORS

SLVS219 – AUGUST 1999

IT

t

1

RESET

0

t

1

0

t

d

t

d

t

d

t

Undefined Behavior of

RESET Output For VDD< 1.1 V

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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, I
Maximum high output current, I
Input clamp current, I
Output clamp current, I

(VI<0 or VI>VDD) ±20 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

IK

(VO<0 or VO>VDD) ±20 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

OK

OL

OH

5 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

–5 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Continuous total power dissipation See Dissipation Rating Table. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Operating free-air temperature range, T
Storage temperature range, T

stg

A

–40°C to 85°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

–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.

PACKAGE

DCK 321 mW 2.6 mW/°C 206 mW 167 mW

TA <25°C

POWER RATING

DISSIPATION RATING TABLE

DERATING FACTOR

ABOVE TA = 25°C

POWER RATING

TA = 70°C

TA = 85°C

POWER RATING

recommended operating conditions at specified temperature range

MIN MAX UNIT

Supply voltage, V
Input voltage, V
High-level input voltage, V
Low-level input voltage, V
Input transition rise and fall rate at MR, ∆t/∆V 100 ns/V
Operating free-air temperature range, T

DD

I

IH

IL

A

2 6 V
0 VDD+0.3 V

0.7×V

DD

0.3×V

–40 85 °C

DD

V
V

4

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V

ggg

T

40°C to +85°C

V

V

Hysteresis

mV

MR

A

IDDSupply current

A

twPulse width

t

PHL

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 TEST CONDITIONS MIN TYP MAX UNIT

VDD = 2.5 V to 6 V IOH = –500 µA VDD –0.2

V

High-level output voltage

OH

V

Low-level output voltage

OL

Power-up reset voltage (see Note 2) VDD ≥ 1.1 V, IOL = 50 µA 0.2 V

TPS3801J25 2.20 2.25 2.30

Negative-going input threshold

IT–

voltage (see Note 3)

hys

I

High-level input current

IH

I

Low-level input current

IL

pp

C

Input capacitance VI = 0 V to V

i

NOTES: 2. The lowest supply voltage at which RESET becomes active. tr,

3. T o ensure best stability of the threshold voltage, a bypass capacitor ( 0.1 µF ceramic) should be placed near the supply terminals.

TPS3801L30
TPS3801K33
TPS3801I50 4.45 4.55 4.65
TPS3801J25 30
TPS3801L30 35
TPS3801K33 40
TPS3801I50 60

VDD = 3.3 V IOH = –2 mA
VDD = 6 V IOH = –4 mA VDD –0.4
VDD = 2 V to 6 V, IOL = 500 µA 0.2
VDD = 3.3 V, IOL = 2 mA
VDD = 6 V, IOL = 4 mA 0.4

°

–

A

MR = 0.7×VDD, VDD = 6 V –40 –60 –100
MR = 0 V, VDD = 6 V –130 –200 –340
VDD = 2 V,

and output unconnected

MR
VDD = 6 V,

and output unconnected

MR

DD

°

VDD

VDD –0.4

0.4

2.58 2.64 2.70

2.87 2.93 2.99

9 12

20 25

5 pF

≥ 15 µs/V.

V

V

µ

µ

timing requirements at R

PARAMETER TEST CONDITIONS MIN TYP MAX UNIT

at V
at MR VDD ≥ V

= 1 MΩ, CL = 50 pF, TA = 25°C

L

VDD = V

DD

switching characteristics at R

PARAMETER TEST CONDITIONS MIN TYP MAX UNIT

t

Delay time

d

Propagation (delay) time, high-to-low-level

t

output

+ 0.2 V, VDD = V

IT–

+ 0.2V, VIL = 0.3 × VDD, VIH = 0.7 × V

IT–

= 1 MΩ, C

L

= 50 pF, T

L

MR to RESET delay

VDD to RESET delay

–0.2 V 3 µs

IT–

= 25°C

A

VDD ≥ V
MR
See timing diagram

VDD ≥ V
VIL = 0.3 × VDD,
VIH = 0.7 × V

VIL =V
VIH= V

IT–

≥ 0.7 × V

IT–

– 0.2 V,

IT–

IT–

+ 0.2 V,

DD

+ 0.2 V,

DD

+ 0.2 V

DD

100 ns

120 200 280 ms

15 ns

1 µs

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TPS3801J25, TPS3801L30, TPS3801K33, TPS3801I50
ULTRA-SMALL SUPPLY VOLTAGE SUPERVISORS

SLVS219 – AUGUST 1999

TYPICAL CHARACTERISTICS

LOW-LEVEL OUTPUT VOLTAGE

vs

LOW-LEVEL OUTPUT CURRENT

2.75

2.50

2.25

2.00

1.75

1.50

1.25

1.00

0.75

0.50

OL

V – Low-Level Output Voltage – V

0.25

0.00

VDD = 2.5 V
MR

= OPEN

TA = 25°C

TA = 85°C

TA = -40°C

0.00 2.50 5.00 7.50 10.00 12.50
IOL – Low-Level Output Current – mA

Figure 1

TA = 0°C

SUPPLY CURRENT

vs

SUPPLY VOLTAGE

50

MR = OPEN
TA = 25°C

TPS3801J25

0

–20246

VDD – Supply Voltage – V

I Supply Current – –Aµ

40

30

20

10

–10

–20

DD

–30

–40

–50

Figure 2

HIGH-LEVEL OUTPUT VOLTAGE

vs

HIGH-LEVEL OUTPUT CURRENT

6.50

6.00

5.50

5.00

4.50

4.00

3.50

3.00

2.50

2.00

– High-Level Output Voltage – V

1.50

OH

V

1.00

0.50

0.00
0 –10 –20 –30 –40 –50

IOH – High-Level Output Current – mA

TA = 85°C

TA = 25°C

Figure 3

VDD = 6.0 V
MR

= OPEN

TA = -40°C

TA = 0°C

HIGH-LEVEL OUTPUT VOLTAGE

vs

HIGH-LEVEL OUTPUT CURRENT

3.00

2.75

2.50

2.25

2.00

1.75

1.50

1.25

1.00

– High-Level Output Voltage – V

0.75

OH

0.50

V

0.25

0.00
0 –2 –4 –6 –8 –10

IOH – High-Level Output Current – mA

TA = 85°C

TA = 25°C

TA = -40°C

Figure 4

VDD = 2.5 V
MR

= OPEN

TA = 0°C

6

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Inp

t

C

rrent

A

I

µ

TPS3801J25, TPS3801L30, TPS3801K33, TPS3801I50

ULTRA-SMALL SUPPLY VOLTAGE SUPERVISORS

SLVS219 – AUGUST 1999

TYPICAL CHARACTERISTICS

INPUT CURRENT

vs

INPUT VOLTAGE AT MR

100

VDD = 6 V
TA = 25°C

0

–100

–

–200

u
u

–300

–

I

–400

–500

–20246

VI – Input Voltage at MR

– V

Figure 5

MINIMUM PULSE DURATION AT V

V

THRESHOLD OVERDRIVE VOLTAGE

DD

3.5

3.0

NORMALIZED INTPUT THRESHOLD VOLTAGE

FREE-AIR TEMPERATURE AT V

1.001

ITA

1.000

IT

0.999

0.998

0.997

0.996

0.995

Normalized Input Threshold Voltage V (T ), V (25 C)

–40 –20 0 20 40

TA – Free-Air Temperature – °C

DD

vs

MR = OPEN

vs

Figure 6

DD

VDD = 2.3 V
MR

= OPEN

60 85

DD

2.5

2.0

1.5

1.0

0.5

tw – Minimum Pulse Duration at V in µs

0.0

0.0 0.2 0.4 0.6 0.8 1.0
VDD – Threshold Overdrive Voltage – V

Figure 7

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7

TPS3801J25, TPS3801L30, TPS3801K33, TPS3801I50
ULTRA-SMALL SUPPLY VOLTAGE SUPERVISORS

SLVS219 – AUGUST 1999

MECHANICAL DATA

DCK (R-PDSO-G5) PLASTIC SMALL-OUTLINE PACKAGE

0,65

1 3

1,00
0,80

2,20

1,80

45

0,10
0,00

0,30
0,15

1,35

1,15

0,10

2,20
2,00

Seating Plane

M

0,13 NOM

Gage Plane

0,15

0°–8°

0,10

0,46
0,26

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

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Copyright  1999, Texas Instruments Incorporated