SGS Thomson Microelectronics TS831-5IZ, TS831-5ID, TS831-5, TS831-4IZ, TS831-4IN Datasheet

1/11

■ ULTRA LOW POWER CONSUMPTION :

12µA maximum

■ PRECISION RESETTHRESHOLD

■ THRESHOLD VOLTAGE:

4.33V typ. FOR TS831-5

4.50V typ. FOR TS831-4

2.71V typ. FOR TS831-3

■ GUARANTEED RESET OPERATION FOR

VCC DOWN TO 1V

■ OPEN DRAIN OUTPUT COMPARATOR

■ FAST RESPONSE TIME : 20µs FOR A 10mV

OVERDRIVE

■ INTERNAL BUILT-IN HYSTERESIS

■ PIN TO PIN COMPATIBLEWITH MC33064

AND MC33164

DESCRIPTION

The TS831 ultra low power integrated circuit incor­porates a high stability band-gap voltage refer­ence and a comparator with open drain output.
The threshold voltage is set at 4.33V for TS831-5,

4.5V for TS831-4 and 2.71V for TS831-3 by inter­nal thermally matched resistances.

The comparator exhibits a 20µs response (with
10mV overdrive) and has an open drain output ac­tive when input voltage is lower than the threshold.

An internal hysteresis, 100mV for TS831-4/
TS831-5 and 60mV for TS831-3, increases the
comparator’s noise margin and prevents false re­set operation.

APPLICATION

■ Power-on reset generator for microcontroller

■ Power failure detector

ORDER CODE

Z= TO92 Plastic package
D=Small Outline Package (SO) - also available in Tape & Reel (DT)

P=Thin Shrink Small Outline Package (TSSOP) - only available

in Tape & Reel (PT)

PIN CONNECTIONS (top view)

Part Number Temperature Range

Package

DZP

TS831-5I

-40, +125°C

•••

TS831-4I •••
TS831-3I •••

D

DIP-8

(Plastic Micropackage)

P

TSSOP-8

(Thin Shrink Small Outline Package)

Z

TO-92

(Plastic Package)

TO-92

SO8-TSSOP8

TS831

MICROPOWER VOLTAGE SUPERVISOR

RESET ACTIVE LOW

March 2000

TS831

2/11

ABSOLUTE MAXIMUM RATINGS

OPERATING CONDITIONS

TS831-5
ELECTRICAL CHARACTERISTICS Tamb = 25°C (unless otherwise specified)

Symbol Parameter Value Unit

V

CC

Supply Voltage

1)

7V

V

out

Output Voltage

-0.3 to V

cc

+ 0.3

V

I

out

Output Sink Current TS831-5 and TS831-4

TS831-3

20

5

mA

Pd

Power Dissipation

2)

TO-92
SO-8
TSSOP-8

625
700
625

mW

I

F

Clamp Diode Forward Current, pin 1 to pin 2

3)

100 mA

T

oper

Operating Free Air Temperature Range -40 to +85 °C

T

stg

Storage Temperature -65 to +150 °C

1. All voltages values, except differential voltage are with respect to network ground terminal.

2. T

j

= 150°C, T

amb

=25oC with Rthja = 200oC/W for TO-92 package

Rthja = 175

o

C/W for SO8 package

Rthja = 200

o

C/W for TSSOP8 package

3. Maximum package power dissipation limits must be observed.

Symbol Parameter Value Unit

V

CC

Supply Voltage 1 to 5.5 V

Symbol Parameter Min. Typ. Max. Unit

V

thi

Threshold Voltage - VCCIncreasing

-40°C ≤ Tamb ≤ +85°C

-40°C ≤ Tamb ≤ +125°C

4.10

4.10

4.33

4.46

4.50

V

V

thd

Threshold Voltage - VCCDecreasing

-40°C ≤ Tamb ≤ +85°C

-40°C ≤ Tamb ≤ +125°C

4.10

4.06

4.21

4.46

4.46

V

V

hys

Hysteresis Voltage 50 100 200 mV

I

CC

Current Consumption VCC=5V

12 µA

V

OL

Low Level Output Voltage VCC=4V,IOL= 8mA

-40°C ≤ Tamb ≤ +85°C

-40°C ≤ Tamb ≤ +125°C

450 800

1000
1300

mV

I

OH

Low Level Output Voltage VCC=5V

-40°C ≤ Tamb ≤ +125°C

2 100

1000

nA

tphl

Response Time High to Low

R

L

= 10kΩ,CL= 15pF,VCC=V

thd

-10mV

20 µs

Note : Limits are 100% production tested at 25°C. Limits over temperature are guaranteed through correlation and by design.

TS831

3/11

TS831-4
ELECTRICAL CHARACTERISTICS Tamb = 25°C (unless otherwise specified)

TS831-3
ELECTRICAL CHARACTERISTICS Tamb = 25°C (unless otherwise specified)

Symbol Parameter Min. Typ. Max. Unit

V

thi

Threshold Voltage - VCCIncreasing

-40°C ≤ Tamb ≤ +85°C

-40°C ≤ Tamb ≤ +125°C

4.17

4.10

4.35

4.66

4.70

V

V

thd

Threshold Voltage - VCCDecreasing

-40°C ≤ Tamb ≤ +85°C

-40°C ≤ Tamb ≤ +125°C

4.17

4.13

4.4

4.66

4.66

V

V

hys

Hysteresis Voltage 50 100 200 mV

I

CC

Current Consumption VCC=5V

12 µA

V

OL

Low Level Output Voltage VCC=4V,IOL= 8mA

-40°C ≤ Tamb ≤ +85°C

-40°C ≤ Tamb ≤ +125°C

450 800

1000
1300

mV

I

OH

Low Level Output Voltage VCC=5V

-40°C ≤ Tamb ≤ +125°C

2 100

1000

nA

tphl

Response Time High to Low

R

L

= 10kΩ,CL= 15pF,VCC=V

thd

-10mV

20 µs

Note : Limits are 100% production tested at 25°C. Limits over temperature are guaranteed through correlation and by design.

Symbol Parameter Min. Typ. Max. Unit

V

thi

Threshold Voltage - VCCIncreasing

-40°C ≤ Tamb ≤ +125°C

2.55

2.71

2.8

V

V

thd

Threshold Voltage - VCCDecreasing

-40°C ≤ Tamb ≤ +125°C

2.55

2.65

2.8

V

V

hys

Hysteresis Voltage 30 60 100 mV

I

CC

Current Consumption VCC=3V

12 µA

V

OL

Low Level Output Voltage VCC= 2.4V,IOL= 1mA

-40°C ≤ Tamb ≤ +125°C

140 400

500

mV

I

OH

Low Level Output Voltage VCC=3V

-40°C ≤ Tamb ≤ +125°C

2 100

1000

nA

tphl

Response Time High to Low

R

L

= 10kΩ,CL= 15pF,VCC=V

thd

-10mV

20 µs

Note : Limits are 100% production tested at 25°C. Limits over temperature are guaranteed through correlation and by design.

TS831

4/11

EQUIVALENT SCHEMATIC DIAGRAM

TIMING DIAGRAM

TS831

5/11

Output voltageversus input voltage

Output voltage versus input voltage

Output voltageversus input voltage

Reset output voltage versus Input voltage

Reset output voltage versus Input voltage

Reset output voltage versus Input voltage

0246810

Input voltage (V)

0

2

4

6

8

10

Output voltage (V)

TS831-3

R

L

= 10 Kohms

T=25°C

0246810

Input voltage (V)

0

2

4

6

8

10

Output voltage (V)

TS831-4

R

L= 10 Kohms

T=25°C

0246810

Input voltage (V)

0

2

4

6

8

10

Output voltage(V)

TS831-5

R

L

= 10 Kohms

T=25°C

2.60 2.65 2.70 2.75

Input voltage (V)

0.0

1.0

2.0

3.0

4.0

5.0

Output voltage (V)

TS831-3

R

L= 10 Kohms

T=25°C

4.4 4.5 4.6
Input voltage (V)

0.0

1.0

2.0

3.0

4.0

5.0

Output voltage (V)

TS831-4

R

L

=10 Kohms

T=25°C

4.20 4.24 4.28 4.32 4.36 4.40
Inputvoltage(V)

0.0

1.0

2.0

3.0

4.0

5.0

Outputvoltage (V)

TS831-5

R

L

= 10 Kohms

T=25°C

TS831

6/11

VthversustemperaturewhileVcc increasing

Hysteresis voltage versus temperature

Supplycurrent vsinputvoltage &temperature

VthversustemperaturewhileVcc decreasing

Supply current versus temperature

Voltage output low vs Isink & temperature

-40 -20 0 20 40 60 80 100 120
Temperature (°C)

4.4

4.4

4.5

4.5

4.6

Vthi (Volts)

V

th

i

m

a

x

V

th

i

m

i

n

TS831-4

-40 -20 0 20 40 60 80 100 120
Temperature (°C)

80

100

120

140

160

Hysteresis(mV)

TS831-4

0246810

Input voltage (V)

0

4

8

12

16

Supply current (µA)

TS831-3
No Load

+125°C

-40°C

25°C

-40°C

-40 -20 0 20 40 60 80 100 120
Temperature (°C)

4.32

4.34

4.36

4.38

4.40

4.42

4.44

Vthd (Volts)

V

th

d

m

a

x

TS831-4

V

t

h

d

m

in

-40-200 20406080100120
Temperatu re ( ° C)

8.2

8.4

8.6

8.8

9.0

9.2

9.4

9.6

Supply current (µA)

Ic

c

max

Ic

c

mi

n

TS8 31- 4

No lo ad

02468

Isink (mA)

0

0.5

1

1.5

2

2.5

3

Vol (V)

-40°C

+25°C

+85°C

+125°C

TS831-3

Vin=2.4V

TS831

7/11

Supplycurrent vsinputvoltage &temperature

Supplycurrentvs inputvoltage&temperature

Clamp diode forward current versus voltage

Voltage output low vs Isink & temperature

Voltage output low vs Isink & temperature

Response time

0246810

Input voltage (V)

0

4

8

12

Supply current (µA)

TS831-4

No Load

+125°C

-40°C

25°C

25°C

-40°C

+125°C

0246810

Input voltage (V)

0

4

8

12

Supply current (µA)

TS831-5
No Load

+125°C

-40°C

25°C

25°C

-40°C

+125°C

0 0.5 1 1.5

Forward voltage (V)

0

20

40

60

80

100

Forward current (mA)

Vin= 0V

T=25°C

0 5 10 15 20

Isink(mA)

0

1

2

3

4

Vol (V)

-40°C

+25°C

+85°C

+125°C

TS831-4

Vin=4V

0 5 10 15 20

Isink(mA)

0

1

2

3

4

Vol(V)

-40°C

+25°C

+85°C

+125°C

TS831-5

Vin=4V

0 20406080100

Time (µs)

Input

signal

Reset

output

4V

5V

0V

TS831-4

R

L

= 10 Kohms

T=25°C

5V

TS831

8/11

Basic configuration

Powe r
Sup p ly

Microprocessor

circ u it

Reset

TS8 31

in

G

nd

Pullup

resistor

Special remarks

* Some microprocessor may integrate the pull up resistor.
* For the pull up resistor choice, pleaseuse thegraphs namme d”V oltage

output low vs Isink & t emperature” depending on TS831 versions.

TS831

9/11

PACKAGE MECHANICAL DATA

8 PINS - PLASTIC MICROPACKAGE (SO)

Dim.

Millimeters Inches

Min. Typ. Max. Min. Typ. Max.

A 1.75 0.069
a1 0.1 0.25 0.004 0.010
a2 1.65 0.065
a3 0.65 0.85 0.026 0.033

b 0.35 0.48 0.014 0.019
b1 0.19 0.25 0.007 0.010

C 0.25 0.5 0.010 0.020

c1 45° (typ.)

D 4.8 5.0 0.189 0.197
E 5.8 6.2 0.228 0.244

e 1.27 0.050
e3 3.81 0.150

F 3.8 4.0 0.150 0.157

L 0.4 1.27 0.016 0.050

M 0.6 0.024
S8°(max.)

TS831

10/11

PACKAGE MECHANICAL DATA

3 PINS - PLASTIC PACKAGE TO-92

Dim.

Millimeters Inches

Min Typ. Max. Min. Typ. Max.

L 1.27 0.05

B 3.2 3.7 4.2 0.126 0.1457 0.1654

O1 4.45 5.00 5.2 0.1752 0.1969 0.2047

C 4.58 5.03 5.33 0.1803 0.198 0.2098
K 12.7 0.5

O2 0.407 0.5 0.508 0.016 0.0197 0.02

a 0.35 0.0138

TS831

11/11

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PACKAGE MECHANICAL DATA

8 PINS - THIN SHRINK SMALL OUTLINE PACKAGE

Dim.

Millimeters Inches

Min. Typ. Max. Min. Typ. Max.

A 1.20 0.05
A1 0.05 0.15 0.01 0.006
A2 0.80 1.00 1.05 0.031 0.039 0.041

b 0.19 0.30 0.007 0.15

c 0.09 0.20 0.003 0.012
D 2.90 3.00 3.10 0.114 0.118 0.122
E 6.40 0.252

E1 4.30 4.40 4.50 0.169 0.173 0.177

e 0.65 0.025

k0° 8°0° 8°

l 0.50 0.60 0.75 0.09 0.0236 0.030

0,25 mm
.010 inch

GAGE PLANE

Caaa

C

PLANE

SEATING

EA

A2

A1

D

b

e

E1

L

k

c

14

85

PIN 1IDENTIFICATION

L1