Texas Instruments TPS3836K33DBVT, TPS3836K33DBVR, TPS3836J25DBVT, TPS3836J25DBVR, TPS3836H30DBVT Datasheet

TPS3836E18 / J25 / H30 / L30 / K33

TPS3837E18 / J25 / L30 / K33, TPS3838E18 / J25 / L30 / K33

NANOPOWER SUPERVISORY CIRCUITS

SLVS292A – JUNE 2000 – REVISED JANUARY 2002

D Supply Current of 220 nA (Typ)
D Precision Supply Voltage Supervision

Range: 1.8 V, 2.5 V, 3.0 V, 3.3 V

D Power-On Reset Generator With Selectable

Delay Time of 10 ms or 200 ms

D Push/Pull RESET Output (TPS3836),

RESET Output (TPS3837), or
Open-Drain RESET

Output (TPS3838)

D Manual Reset
D 5-Pin SOT-23 Package
D Temperature Range –40°C to 85°C

D Applications Include

– Applications Using Low-Power DSPs,

Microcontrollers, or Microprocessors
– Portable/Battery-Powered Equipment
– Intelligent Instruments
– Wireless Communication Systems
– Notebook Computers
– Automotive Systems

TPS3836, TPS3838

DBV PACKAGE

(TOP VIEW)

CT

1

description

GND

The TPS3836, TPS3837, TPS3838 families of
supervisory circuits provide circuit initialization

MR

and timing supervision, primarily for DSP and
processor-based systems.

During power on, RESET
supply voltage V

DD

Thereafter, the supervisory circuit monitors V
and keeps RESET output active as long as V
remains below the threshold voltage VIT. An

is asserted when the

becomes higher than 1.1 V.

DD
DD

CT

GND

internal timer delays the return of the output to the
inactive state (high) to ensure proper system
reset. The delay time starts after V
above the threshold voltage V

.

IT

has risen

DD

MR

When CT is connected to GND a fixed delay time of typical 10 ms is asserted. When connected to V
time is typically 200 ms.

2

3

TPS3837

DBV PACKAGE

(TOP VIEW)

1

2

3

5

V

DD

4

RESET

V

5

4

DD

RESET

the delay

DD

When the supply voltage drops below the threshold voltage V
All the devices of this family have a fixed-sense threshold voltage V
The TPS3836 has an active-low push-pull RESET

TPS3838 integrates an active-low open-drain RESET

TPS3836K33

V

DD

CT

RESET

MR

T

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.

GND

TYPICAL OPERATING CIRCUIT

output. The TPS3837 has active-high push-pull RESET , and

output.

V

CC

RST

Xout

V

SS

MSP430

Xin

, the output becomes active (low) again.

IT

set by an internal voltage divider.

IT

Lithium
Battery

Quartz
32 kHz

3.6 V

Copyright  2002, Texas Instruments Incorporated

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

1

TPS3836E18 / J25 / H30 / L30 / K33

40 C to 85 C

TPS3837E18 / J25 / L30 / K33, TPS3838E18 / J25 / L30 / K33
NANOPOWER SUPERVISORY CIRCUITS

SLVS292A – JUNE 2000 – REVISED JANUARY 2002

description (continued)

The product spectrum is designed for supply voltages of 1.8 V , 2.5 V, 3 V , and 3.3 V. The circuits are available
in a 5-pin SOT-23 package. The TPS3836, TPS3837, TPS3838 families are characterized for operation over
a temperature range of –40°C to 85°C.

PACKAGE INFORMATION

T

A

TPS3836E18DBVR
TPS3836J25DBVR
TPS3836H30DBVR
TPS3836L30DBVR
TPS3836K33DBVR
TPS3837E18DBVR

–40°C to 85°C

†

The DBVR passive indicates tape and reel of 3000 parts.

‡

The DBVT passive indicates tape and reel of 250 parts.

TPS3837J25DBVR
TPS3837L30DBVR
TPS3837K33DBVR
TPS3838E18DBVR
TPS3838J25DBVR
TPS3838L30DBVR
TPS3838K33DBVR

DEVICE NAME THRESHOLD VOLTAGE SYMBOL

†

TPS3836E18DBVT

†

TPS3836J25DBVT

†

TPS3836H30DBVT

†

TPS3836L30DBVT

†

TPS3836K33DBVT

†

TPS3837E18DBVT

†

TPS3837J25DBVT

†

TPS3837L30DBVT

†

TPS3837K33DBVT

†

TPS3838E18DBVT

†

TPS3838J25DBVT

†

TPS3838L30DBVT

†

TPS3838K33DBVT

‡

‡

‡

‡

‡

‡
‡
‡

‡

‡
‡
‡

‡

1.71 V PDNI

2.25 V PDSI

2.79 V PHRI

2.64 V PCAI

2.93 V PDTI

1.71 V PDOI

2.25 V PDRI

2.64 V PCBI

2.93 V PDUI

1.71 V PDQI

2.25 V PDPI

2.64 V PCCI

2.93 V PDVI

ORDERING INFORMATION

TPS383 6 E 18 DBV R

FUNCTION TABLE TPS3836, TPS3837, TPS3838

MR

L 0 L H

L 1LH
H 0LH
H 1 H L

§

TPS3836 and TPS3838

¶

TPS3837

VDD > V

IT

Reel
Package
Nominal Supply Voltage
Typical Reset Threshold Voltage
Functionality
Family

RESET

§

RESET

¶

2

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

functional block diagram

V

DD

TPS3836E18 / J25 / H30 / L30 / K33

TPS3837E18 / J25 / L30 / K33, TPS3838E18 / J25 / L30 / K33

NANOPOWER SUPERVISORY CIRCUITS

SLVS292A – JUNE 2000 – REVISED JANUARY 2002

MR

GND

R3

Band-Gap
Reference

R1

R2

S2

S1

S3

C1

C2

C3

C

T

+

–

Reset Logic

and Timer

Refresh

Timer

Reset (TPS3837-Push-Pull)
Reset (TPS3836-Push-Pull

TPS3838-Open-Drain)

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

3

TPS3836E18 / J25 / H30 / L30 / K33
TPS3837E18 / J25 / L30 / K33, TPS3838E18 / J25 / L30 / K33
NANOPOWER SUPERVISORY CIRCUITS

SLVS292A – JUNE 2000 – REVISED JANUARY 2002

timing diagram

V

DD

< 1.1 V

MR

RESET

A

V

IT

B C D E F G

t

t

t

Undefined

Output

t

d

t

d

t

d

Undefined

Output

4

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

TPS3836E18 / J25 / H30 / L30 / K33

TPS3837E18 / J25 / L30 / K33, TPS3838E18 / J25 / L30 / K33

NANOPOWER SUPERVISORY CIRCUITS

SLVS292A – JUNE 2000 – REVISED JANUARY 2002

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

Supply voltage, V

(see Note 1) 7 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

DD

†

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

IK

(V

OK

< 0 or V

I

(V

O

OL

OH

> VDD) ±10 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

I

< 0 or V

> VDD) ±10 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

O

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 must not be operated at 7 V for more than t=1000 h

continuously

DISSIPATION RATING TABLE

PACKAGE

DBV 437 mW 3.5 mW/ºC 280 mW 227 mW

TA <25°C

POWER RATING

DERATING FACTOR

ABOVE TA = 25°C

TA = 70°C

POWER RATING

POWER RATING

TA = 85°C

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

1.6 6 V
0 VDD + 0.3 V

0.7 × V

DD

0.3 × V

–40 85 °C

DD

V
V

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5

TPS3836E18 / J25 / H30 / L30 / K33

RESET

0.8 ×

RESET

DD

RESET

RESET

V

IT

3)

T

A

40 C to 85 C

V

y

V

hys

Hysteresis at V

DD

in ut

mV

IIHHigh level in ut current

IILLow level in ut current

IDDSu ly current

TPS3837E18 / J25 / L30 / K33, TPS3838E18 / J25 / L30 / K33
NANOPOWER SUPERVISORY CIRCUITS

SLVS292A – JUNE 2000 – REVISED JANUARY 2002

electrical characteristics over recommended operating conditions (unless otherwise noted)

PARAMETER TEST CONDITION MIN

RESET

V

OH

V

OL

V

IT

V

h

I

I

I

OH

I

DD

C

I

NOTES: 2. The lowest voltage at which RESET output becomes active. tr, VDD ≥ 15 µs/V

High-level output voltage

Low-level output voltage

Power-up reset voltage
(see Note 2)

Negative-going input threshold
voltage (see Note

Hysteresis at VDD input

s

High-level input current

Low-level input current

High-level output current TPS3838 VDD = VIT + 0.2 V, VOH = V

Supply current

Internal pullup resistor at MR 30 kΩ
Input capacitance at MR, CT VI = 0 V to V

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

4. If manual reset is unused, MR

(TPS3836)
RESET

(TPS3837)
RESET

(TPS3836/8)
RESET

(TPS3837)
TPS3836/8 VDD ≥ 1.1 V, IOL = 50 µA 0.2

TPS3837
TPS383xE18 1.66 1.71 1.74

TPS383xJ25 2.18 2.25 2.29
TPS383xH30
TPS383xL30
TPS383xK33 2.84 2.93 2.99

MR
(see Note 4)

CT CT = VDD = 6 V –25 25 nA
MR

(see Note 4)
CT CT = 0 V, VDD = 6 V –25 25 nA

should be connected to VDD to minimize current consumption.

VDD = 3.3 V, IOH = –2 mA
VDD = 6 V, IOH = –3 mA
VDD = 1.8 V, IOH = –1 mA
VDD = 3.3 V, IOL = –2 mA
VDD = 1.8 V, IOL = 1 mA
VDD = 3.3 V, IOL = 2 mA
VDD = 3.3 V, IOL = 2 mA
VDD = 6 V, IOL = 3 mA

VDD ≥ 1.1 V, IOH = –50 µA

TA = –40°C to 85°C

1.7 V < VIT < 2.5 V 30

2.5 V < VIT < 3.5 V

3.5 V < VIT < 5 V 50
MR = 0.7 × VDD, VDD = 6 V –40 –60 –100

MR = 0 V, VDD = 6 V –130 –200 –340

VDD > VIT, VDD < 3 V 220 400
VDD > VIT, VDD > 3 V
VDD < V

IT

DD

DD

TYP

MAX UNIT

0.8 ×
V

DD

0.8 ×
V

DD

2.70 2.79 2.85

2.56 2.64 2.69

40

250 450

10 15

5 pF

0.4 V

25 nA

V

V

V

mV

µA

µA

nA
µA

6

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

TPS3836E18 / J25 / H30 / L30 / K33

µ

t

PHL

Pro agation (delay) time, high to low level out ut

µs
µ

t

PLH

Pro agation (delay) time, low to high level out ut

µs

V

IL

V

DD

TPS3837E18 / J25 / L30 / K33, TPS3838E18 / J25 / L30 / K33

NANOPOWER SUPERVISORY CIRCUITS

SLVS292A – JUNE 2000 – REVISED JANUARY 2002

timing requirements at R

PARAMETER TEST CONDITIONS MIN TYP MAX UNIT

t

w

Pulse width

= 1 MΩ, C

L

switching characteristics at R

PARAMETER TEST CONDITIONS MIN TYP MAX UNIT

t

Delay time

d

t

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

t

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

t

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

PHL

t

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

PLH

L

at V

DDVIH

at MR

= 1 MΩ, C

L

= 50 pF, T

= VIT + 0.2 V, VIL = VIT – 0.2 V 6

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

= 50 pF, T

L

VDD to RESET delay
(TPS3836, TPS3838)

VDD to RESET delay
(TPS3837)

MR to RESET delay
(TPS3836, TPS3838)

MR to RESET delay
(TPS3837)

= 25_C

A

DD

DD,

= 25_C

A

VDD ≥ VIT + 0.2 V,
MR

= 0.7 × VDD,
CT = GND,
See timing diagram

VDD≥ VIT + 0.2 V,

= 0.7 × VDD,

MR
CT = VDD ,
See timing diagram

VIL = VIT – 0.2 V,
VIH = VIT + 0.2 V

VIL = 1.6 V 50
VIL = VIT – 0.2 V,

VIH = VIT + 0.2 V
VIL = 1.6 V 50

VDD ≥ VIT + 0.2 V,

= 0.3 × V

= 0.3 ×

V
VIL = 0.7 × V

DD

,

,

1

5 10 15

100 200 300

10

10

0.1

0.1 µs

µs
µs

ms

s

s

µs

I
I
V
V

DD
MR

OL
OH

TYPICAL CHARACTERISTICS

Table of Graphs

FIGURE

Supply current vs Supply voltage 1
Manual reset current vs Manual reset voltage 2
Low-level output voltage vs Low-level output current 3
High-level output voltage vs High-level output current 4
Normalized reset threshold voltage vs Free-air temperature 5
Minimum pulse duration at V

DD

vs VDD Threshold overdrive 6

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7

TPS3836E18 / J25 / H30 / L30 / K33
TPS3837E18 / J25 / L30 / K33, TPS3838E18 / J25 / L30 / K33
NANOPOWER SUPERVISORY CIRCUITS

SLVS292A – JUNE 2000 – REVISED JANUARY 2002

TYPICAL CHARACTERISTICS

SUPPLY CURRENT

vs

SUPPLY VOLTAGE

10

MR = Open
CT = GND

8

6

4

– Supply Current – µA

DD

I

2

0

0246

VDD – Supply Voltage – V

TA = 85°C

TA = 25°C

TA = 0°C

TA = –40°C

Figure 1

MANUAL RESET CURRENT

vs

MANUAL RESET VOLTAGE

100

VDD = 6 V
CT = GND

0

TA = –40°C

– Manual Reset Current – µA

MR

I

–100

–200

–300

–400

–500

TA = 0°C

TA = 25°C

TA = 85°C

–20246

VMR – Manual Reset Voltage – V

Figure 2

LOW-LEVEL OUTPUT VOLTAGE

vs

LOW-LEVEL OUTPUT CURRENT

2.0
VDD = 2 V

MR = OPEN
CT = GND

1.5

TA = 25°C

1.0

TA = 85°C

0.5

– Low-Level Output Voltage – V

OL

V

0.0

01234567

IOL – Low-Level Output Current – mA

TA = –40°C

Figure 3

TA = 0°C

HIGH-LEVEL OUTPUT VOLTAGE

vs

HIGH-LEVEL OUTPUT CURRENT

2.0

1.5
TA = 85°C

TA = 25°C

1.0

TA = 0°C

0.5

– High-Level Output Voltage – V

OH

V

0.0

012345

IOH – High-Level Output Current – mA

TA = –40°C

VDD = 2 V
MR

= OPEN

CT = GND

Figure 4

8

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

1.001

0.999

0.998

TPS3836E18 / J25 / H30 / L30 / K33

TPS3837E18 / J25 / L30 / K33, TPS3838E18 / J25 / L30 / K33

NANOPOWER SUPERVISORY CIRCUITS

SLVS292A – JUNE 2000 – REVISED JANUARY 2002

TYPICAL CHARACTERISTICS

NORMALIZED RESET THRESHOLD

VOLTAGE

vs

FREE-AIR TEMPERATURE

1

0.997

0.996

Normalized Reset Threshold Voltage – V

0.995
–40 –15 10 35 60 85

TA – Free-Air Temperature – °C

CT = GND,
MR

= Open

Figure 5

MINIMUM PULSE DURATION AT V

vs

THRESHOLD OVERDRIVE

V

DD

MR = Open
CT = GND
TA = 25°C

– µs

DD

22
20
18
16
14
12
10

8

DD

6
4

Minimum Pulse Duration at V

2
0

0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2

VDD – Threshold Overdrive – V

Figure 6

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9

TPS3836E18 / J25 / H30 / L30 / K33
TPS3837E18 / J25 / L30 / K33, TPS3838E18 / J25 / L30 / K33
NANOPOWER SUPERVISORY CIRCUITS

SLVS292A – JUNE 2000 – REVISED JANUARY 2002

MECHANICAL DATA

DBV (R-PDSO-G5) PLASTIC SMALL-OUTLINE

0,95

1,45
0,95

3,00
2,80

45

31

0,05 MIN

0,50
0,30

1,70
1,50

M

0,20

3,00
2,60

Seating Plane

0,10

0,15 NOM

Gage Plane

0°–8°

0,25

0,55
0,35

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-178

4073253-4/E 05/99

10

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

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Copyright  2002, Texas Instruments Incorporated