Datasheet TS836 Datasheet (SGS Thomson Microelectronics)



MICROPOWER VOLTAGE SUPERVISOR

.

ULTRA LOWPOWERCONSUMPTION :
12µAmax.@ V

.

PRECISIONRESETTHRESHOLD(guaran­teed overTemperature)

.

4.50Vtyp.THRESHOLDVOLTAGE(TS836-4)

.

GUARANTEEDRESETOPERATIONFOR

DOWN TO1V

V

CC

.

OPENDRAIN OUTPUTCOMPARATOR
WITH V
4V

.

FASTRESPONSE TIME : 20µs FORA10mV
OVERDRIVE

.

100mV INTERNALHYSTERESIS

= 450mVtyp. @ Iol= 8mA& VCC=

ol

CC

=5V

TS836

RESET ACTIVEHIGH

D

SO8

(PlasticMicropackage)

Z

TO92

(Plastic Package)

DESCRIPTION

The TS836ultra lowpowerintegratedcircuitincor­porates ahigh stabilityband gap voltagereference
and a comparatorwith open drain output.
The thresholdvoltageisset at 4.5Vfor TS836-4by
internal thermally matched resistances.
The comparator exhibits a 20µs response (with
10mV overdrive) and has an open drain output
activewhen inputvoltageishigher thanthethresh­old.
An internalhysteresisof100mVincreasesthecom­parator’s noise margin and prevents false reset
operation.

APPLICATIONS

.

Power-onreset generatorfor microcontroler

.

Power failuredetector

ORDER CODES

Part Number Temperature Range

TS836-4I -40, +85

PIN CONNECTIONS

TO92

(topview)

12

OUT

3

IN

GND

o

Package
DZ

C • ù

SO8

NC NC NC

8765

1234

OUT IN NC

NC

GND

September 1998

1/8

TS836

ABSOLUTEMAXIMUMRATINGS

Symbol Parameter Value Unit

V

CC

V

out

I

out

Pd Power Dissipation 200 mW

T

oper

T

stg

Note: 1. All voltages values, except differential voltage are withrespect to network ground terminal.

OPERATINGCONDITIONS

Symbol Parameter Value Unit

V

CC

TS836-4

ELECTRICAL CHARACTERISTICS T

Symbol Parameter Min. Typ. Max. Unit

V

thi

V

thd

V

hys

I

CC

V

OL

I

OH

tphl Response Time High to Low

Supply Voltage - note 1 7 V
Output Voltage -0.3 to V

+

0.3 V

CC

Output Current 20 mA

Operating Free Air Temperature Range -40 to +85
Storage Temperature -65 to +150

Supply Voltage 1 to 5.5 V

=25oC (unless otherwisespecified)

amb

Threshold Voltage - VCCIncreasing

≤ T

T

min.

amb

≤ T

max.

Threshold Voltage - VCCDecreasing

≤ T

T

min.

amb

≤ T

max.

4.17 4.5 4.66 V

4.17 4.4 4.66 V

Hysteresis Voltage 50 100 200 mV
Current Consumption VCC=5V 12 µA
Low Level OutputVoltage VCC=4V

= 8mA, T

I

OL

min.

≤ T

amb

≤ T

max.

Output Off-state Leakage VCC=5V

≤ T

T

min.

amb

≤ T

max.

450 800

1000

2 100

1000

20 µs

RL= 10kΩ,CL= 15pF, VCC=V

thd

-10mV

o
o

mV

nA

C
C

2/8

EQUIVALENTSCHEMATIC DIAGRAM

TIMING DIAGRAM

TS836

3/8

TS836

Vth vs Temperaturewhile VCCincreasing

Vthi (Volts)

4,56

max

4,52

4,48

4,44

4,4

-50 -40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100 110 120

Vthi

Vth i

min

TS836-4

Temperature (°C)

Hysteresisvs Temperature

Hysteresis(mV)
160

TS836-4

140

120

100

80

60

-50 -40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100 110 120

Temperature(°C)

Vth vs Temperature while VCCdecreasing

Vthd (Volts)
4,44

x

4,42

4,4

4,38

4,36

4,34

4,32

-50 -40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100 110 120

Vth d

ma

Vth d

n

i

m

Temperature (°C)

TS836-4

ICCvs Temperature

Icc (µA)
9,6

9,4

9,2

9

8,8

8,6

8,4

8,2

-50 -40 -30 -2 0 -10 0 10 20 30 40 50 60 70 80 90 100 110 120

x

ma

c

c

I

min

c

c

I

TS836-4

Temperature (°C)

Reset Output Voltage vs Input Voltage

Outputvoltage (V)

5

4

3

2

1

0

4,3 4,4 4,5 4,6

Input voltage(V)

4/8

TS836-4

RL=10Kohms

T=25°C

Voltage Output Low vs Sink Current

Vol (Volts)

1

0,8

0,6

0,4

0,2

0

0 2 4 6 8 10 12 14 16 18 20

TS836-4

T=25°C

Isink (mA)

TS836

Reset Output Voltage vs Input Voltage

TS836-4

RL=10Kohms

T=25°C

Input signal
2V/div

0.5ms/div

Reset output
2V/div

0.5ms/div

5V

0V
5V

0V

SupplyFalling down : Extended Reset Delay
Timewith an Additional Capacitor

Input sig nal

0.5V/div

0.1 ms/div

Reset output
2V/div

0.1 ms/div

5V

3.5V

3.5V

0V

TS836-4

RL=10 Kohms

CL=10 nF

T=25°C

SupplyFalling down : Reset Delay Time

Input signal

0.5V/div
10 µs/div

Reset output
2V/div
10 µs/div

5V

3.5V

3.5V

0V

TS836-4

RL=10Kohms

T=25°C

SupplyRising up : Output Delay Time

5V

Input signal

0.5V/div

0.5 µs/div

Reset output
2V/div

0.5 µs/div

3.5V

5V

0V

TS836-4

RL=10 Kohms

T=25°C

Reset Output Voltage vs Input Voltage
(example)

Input signal
2 V/d iv

0.5 ms/div

Reset output
2V/div

0.5 ms/div

6V

4V

RL=10 Kohms

6V

0V

TS836-4

T=25°C

Reset Output Voltagevs InputVoltage
(example)

Input signal
2 V/div

0.5 ms/div

Reset output
2V/div

0.5 ms/div

5V

3V

5V

0V

TS836-4

RL=10 Kohms

T=25°C

5/8

TS836

Basic Configuration

Resistor

Vcc

Input

Voltage

TS836

Load

Output

Voltage

Reset

Configurationwith an additional Capacitive
Load

Load Resistor

Vcc Reset

Input

Voltage

TS836

Capacitive

Load

Output

Voltage

6/8

PACKAGE MECHANICAL DATA

8 PINS- PLASTICMICROPACKAGE (SO)

TS836

Dim.

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

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

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

Millimeters Inches

o

(typ.)

o

(max.)

7/8

TS836

PACKAGE MECHANICAL DATA

3 PINS- PLASTICPACKAGE TO92

Dim.

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

Millimeters Inches

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

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without express written approvalof STMicroelectronics.

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8/8

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