Texas Instruments TPS3809I50DBV, TPS3809J25DBV, TPS3809K33DBV, TPS3809L30DBV Schematic [ru]

TPS3809J25, TPS3809L30, TPS3809K33, TPS3809I50

3-PIN SUPPLY VOLTAGE SUPER VISORS

SLVS228 – AUGUST 1999

D

3-Pin SOT-23 Package

D

Supply Current of 9 µA (Typical)

D

Precision Supply Voltage Monitor

TPS3809 . . . DBV PACKAGE

(TOP VIEW)

GND

1

2.5 V, 3 V, 3.3 V, 5 V

3

V

D

Power-On Reset Generator With Fixed
Delay Time of 200 ms

D

Pin-For-Pin Compatible With MAX 809

D

T emperature Range ...–40°C to 85°C

RESET

2

DD

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
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 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.

becomes higher than 1.1 V. Thereafter , the

DD

. When the supply

IT

set by an internal voltage

IT

typical applications

TPS76333

OUTIN5 V

GND

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.

3.3 V

V

DD

TPS3809K33

RESET

GND

V

DD

TMS320LC54x

RESET

GND

D

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

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

Copyright  1999, Texas Instruments Incorporated

1

TPS3809J25, TPS3809L30, TPS3809K33, TPS3809I50

40°C to 85°C

3-PIN SUPPLY VOLTAGE SUPER VISORS

SLVS228 – AUGUST 1999

AVAILABLE OPTIONS

T

A

TPS3809J25DBVR†TPS3809J25DBVT

°

–

†

The DBVR passive indicates tape and reel of 3000 parts.

‡

The DBVT passive indicates tape and reel of 250 parts.

FUNCTION/TRUTH TABLE, TPS3809

VDD>V

TPS3809L30DBVR†TPS3809L30DBVT

°

TPS3809K33DBVR†TPS3809K33DBVT

TPS3809I50DBVR†TPS3809I50DBVT

RESET

IT
0
1

DEVICE NAME THRESHOLD VOLTAGE MARKING

‡
‡
‡

‡

L
H

2.25 V PCZI

2.64 V PDAI

2.93 V PDBI

4.55 V PDCI

ORDERING INFORMATION

25

J9TPS380 RDBV

Nominal Supply Voltage

Nominal Threshold Voltage

Functionality

Family

Reel

Package

functional block diagram

V

DD

GND

R1

R2

TPS3809

Reference

Voltage

of 1.137 V

Reset
_
+

Logic

+

Timer

Oscillator

RESET

2

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

timing diagram

TPS3809J25, TPS3809L30, TPS3809K33, TPS3809I50

3-PIN SUPPLY VOLTAGE SUPER VISORS

V

DD

V

(NOM)

V

IT

1.1 V

RESET

1

0 t

SLVS228 – AUGUST 1999

t

t

d

absolute maximum ratings over operating free-air temperature (unless otherwise noted)

Supply voltage, V

(see Note1) 7 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

DD

t

d

For VDD< 1.1 V Undefined

Behavior of RESET Output

†

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

DBV 437 mW 3.5 mW/°C 280 mW 227 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

Supply voltage, V
Operating free-air temperature range, T

DD

A

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

MIN MAX UNIT

2 6 V

–40 85 °C

3

TPS3809J25, TPS3809L30, TPS3809K33, TPS3809I50

V

ggg

T

40°C to 85°C

V

V

Hysteresis

mV

IDDSupply current

A

3-PIN SUPPLY VOLTAGE SUPER VISORS

SLVS228 – 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

TPS3809J25 2.20 2.25 2.30

Negative-going input threshold

IT–

voltage (see Note 3)

hys

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.

TPS3809L30
TPS3809K33
TPS3809I50 4.45 4.55 4.65
TPS3809J25 30
TPS3809L30 35
TPS3809K33 40
TPS3809I50 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

VDD = 2 V, Output unconnected 9 12
VDD = 6 V, Output unconnected 20 25

DD

°

VDD

VDD –0.4

0.4

2.58 2.64 2.70

2.87 2.93 2.99

5 pF

≥ 15 µs/V.

V

V

µ

timing requirements at R

PARAMETER TEST CONDITIONS MIN TYP MAX UNIT

t

Pulse width at V

w

= 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

t

Propagation (delay) time, high-to-low-level output VDD to RESET delay

PHL

+ 0.2 V, VDD = V

IT–

= 1 MΩ, CL = 50 pF, TA = 25°C

L

– 0.2 V 3 µs

IT–

VDD ≥ V
See timing diagram

VIL = V
VIH = V

IT–

IT–

IT–

+ 0.2 V,

–0.2 V,

+0.2 V

120 200 280 ms

1 µs

4

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

TPS3809J25, TPS3809L30, TPS3809K33, TPS3809I50

3-PIN SUPPLY VOLTAGE SUPER VISORS

SLVS228 – AUGUST 1999

TYPICAL CHARACTERISTICS

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

6.5

6.0

5.5

5.0

4.5

4.0

3.5

3.0

2.5

2.0

– High-Level Output Voltage – V

1.5

OH

V

1.0

0.5
0

LOW-LEVEL OUTPUT VOLTAGE

vs

LOW-LEVEL OUTPUT CURRENT

VDD = 2.5 V

TA = 25°C

TA = 85°C

TA = 0°C

TA =–40°C

0 2.5 5.0 7.5 10.0 12.5

IOL – Low-Level Output Current – mA

Figure 1

HIGH-LEVEL OUTPUT VOLTAGE

vs

HIGH-LEVEL OUTPUT CURRENT

VDD = 6 V

TA =–40°C

TA = 0°C

TA = 85°C

TA = 25°C

0 –10 –20 –30 –40 –50

IOH – High-Level Output Current – mA

SUPPLY CURRENT

vs

SUPPLY VOLTAGE

I Supply Current – –Aµ

50

40

30

20

10

–10

–20

DD

–30

–40

–50

TA = 25°C

TPS3809J25

0

–20246

VDD – Supply Voltage – V

Figure 2

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

0 –2 –4 –6 –8 –10

IOH – High-Level Output Current – mA

TA = 85°C

TA = 25°C

VDD = 2.5 V

TA =–40°C

TA = 0°C

Figure 3

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

Figure 4

5

TPS3809J25, TPS3809L30, TPS3809K33, TPS3809I50
3-PIN SUPPLY VOLTAGE SUPER VISORS

SLVS228 – AUGUST 1999

TYPICAL CHARACTERISTICS

NORMALIZED INPUT THRESHOLD VOLTAGE

vs

FREE-AIR TEMPERATURE AT V

1.001

IT

1.000

V (25 C)°

A

(T ),

0.999

IT

V

0.998

0.997

0.996

Normalized Threshold Voltage

0.995
–40 –20 0 20 40 60 85

TA – Free-Air Temperature – °C

Figure 5

DD

VDD = 2.3 V

MINIMUM PULSE DURATION AT V

V

THRESHOLD OVERDRIVE VOLTAGE

DD

3.5

µs– Minimum Pulse Duration at

3.0

–t

DD

V

2.5

2.0

1.5

1.0

0.5

w

0

0 0.2 0.4 0.6 0.8 1.0

VDD – Threshold Overdrive Voltage – V

Figure 6

vs

DD

6

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

TPS3809J25, TPS3809L30, TPS3809K33, TPS3809I50

3-PIN SUPPLY VOLTAGE SUPER VISORS

SLVS228 – AUGUST 1999

MECHANICAL DATA

DBV (R-PDSO-G3) PLASTIC SMALL-OUTLINE

0,95

0,50
0,30

3

0,20

M

1

3,00
2,80

1,45

0,95

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.

2

0,05 MIN

1,70
1,50

3,00
2,60

Seating Plane

0,10

0,15 NOM

Gage Plane

0°–8°

0,25

0,55
0,35

4073253-2/E 05/99

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

7

IMPORTANT NOTICE

T exas 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 APPLICA TIONS. INCLUSION OF TI PRODUCTS IN SUCH APPLICATIONS IS UNDERST OOD 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