Applications

Each applications needing a voltage detection :
n Computer electronics

White / Brown goods
Automotive electronics
Industrial electronics
Telecom systems
Hand-held systems

n
n
n
n
n

Features

n SOT-23 and TO-92 package

Reset output state guaranteed down to V = 1 V at 25 C

Low supply current: stays stable during switching

versions B, N, N: typ. 19 �A at

�2.5% voltage threshold accuracy
High noise immunity
No external components required
Push-pull or Open drain output
Pin compatible with MAX 809 in SOT-23, by appropriate
layout on PCB

Pin compatible with MC 33164 in TO-92 and SO8
TTL output compatibility

V = 5 V

other Versions: typ. 38

A at V = 5 V,

n
n
n
n
n

n
n

On request

Description

The V6340 monitors the supply voltage of any electronic
system, and generates the appropriate Reset signal. The
threshold must be chosen to the minimum allowed voltage
which guarantees the good functionality of the system. As long
as V stays upside this voltage level, the output stays inactive.

If V drops below V , the output gets active. The threshold

voltage may be obtained in different versions: 2.6 V, 3.0 V, 3.7 V
and 4.4 V.

Ultra Low Cost 3-Pin Microprocessor Reset

Pin Assignment

RES

RES or

RES

V 6340

View

Flat Front

TO-92

SOT-23

Fig. 2

Typical Operating Configuration

Fig. 1

RES

V 6340

GND

Micro-

processor

EM MICROELECTRONIC-MARIN SA

V6340

Handling Procedures

The maximum operating temperature is confirmed by
sampling at initial device qualification. In production, all
devices are tested at +25

. On request devices tested at

+125

can be supplied.

V = 1 V guaranteed at +2

(see Fig. 14 for more

information)

5 C

Absolute Maximum Ratings

Stresses above these listed maximum ratings may cause
permanent damage to the device. Exposure beyond specified
operating conditions may affect device reliability or cause
malfunction.

Table 1

Parameter

Voltage at V

to V

Min. voltage at RES or RES
Mix. voltage at RES or RES
Storage temperature range

min

max

STO

-0.3V to+8V

- 0.3V

-65 to + 150

O O

+ 0.3V

Symbol

Conditions

Electrical Characteristics

T = +25 C, unless otherwise specified

Only for Open drain versions

V = 5 V, output open

B,H,N

2.56

2.74

2.65

Supply current
Threshold voltage
Threshold hyteresis V

32 mV

HYS

Table 3

Only for version B, H and N

HYS

LEAK

V = 5 V, output open

C, I, O

2.94

3.10
3.82
4.51

270
250
250
250

3.02
3.72
4.39

200
195
198
185

1.36

2.3

3.27
4.76

0.005

1.25

2.2

3.15
4.65

D, J, P

3.62

F, L, R

4.27

V = 1.6 V, I = 1mA

V = 2.5 V, I = 2mA

V = 3.5 V, I = 3mA

V = 5 V, I = 4mA

V = 1.6 V, I = -1mA

V = 2.5 V, I = -1.5 mA

V = 3.5 V, I = -2.5mA

V = 5 V, I = -3.5 mA

V = 5 V

Supply current
Threshold voltage

Threshold hysteresis
RES Output Low Level

RES Output High Level

Output leakage current

V
V
V

mV
mV
mV
mV
mV

Parameter

Symbol

Test Conditions

Min.

Typ.

Max.

Units

This device has built-in protection against high static voltages
or electric fields; however, anti-static precautions must be taken
as for any other CMOS component. Unless otherwise specified,
proper operation can only occur when all terminal voltages are
kept within the supply voltage range.

Operating Conditions

-40

+125

5.5

Table 2

Parameter

Symbol Min. Typ . Max. Units

Operating temperature

Positive supply voltage

Timing Waveform

Block Diagram

Fig. 4

Voltage

Reference

RES or RES

1 V

Logic "1"
Logic "0"
Logic "1"
Logic "0"

RES

Fig. 3

RES

V6340

[1]* Multiply value at +25

by this factor to determine the

value at temperature

V - V vs. Supply Voltage

-

V

[
m

]

[V]

Fig. 9

500

400

300

200

100

1.5

2.5

3.5

4.5 5

= 4mA

= 2mA

= 1mA

= 500

V vs. Supply Voltage

[
m

]

[V]

500

400

300

200

100

1.5

2.5

3.5

4.5

Fig. 8

= 4mA

= 2mA

= 1mA

= 500

Typical Characteristics

Normalized V vs. Temperature

[
1

]
*

1.06

1.04

1.02

0.98

0.96

0.94

-50

+50

T [ C]

+100

Fig. 5

V =1.6V, I

=1mA

V =2.5V, I

=1.5 mA

V =3.5V, I

=2.5 mA

V =5V, I

=3.5 mA

V vs. Output Current

V - V vs. Output Current

-

V

[
m

]

I [mA]

800

700

600

500

400

300

200

100

Fig. 7

V =1.6 V

V =2.5 V

V =5 V

V =3.5 V

[
m

]

I [mA]

500

400

300

200

100

Fig. 6

V =1.6 V

V =2.5 V

V =5 V

V =3.5 V

1.6

1.4

1.2

0.8

0.6

-50

+50

T [

]

+100

Fig. 4

[

]

*

V6340

Supply Current vs. Temperature

Normalized Threshold vs. Temperature

[

]

[

]

-50

+50

+100

T [ C]

Fig. 10

= 5V

= 4V

= 3V

= 2V

= 1.6V

1.02

1.015

1.01

1.005

0.995

0.99

0.985

0.98

r
e

s
h

l
d

[
1

]
*

-50

-50 -25 0 +25 +50 +75 +100 +125

+50

+100

T [ C]

Fig. 11

Typical Sensivity vs. Temperature

Typical Minimum Operating Supply Voltage (V

)

[1]* Multiply value at +25

by this factor to determine the value at temperature

1.6

1.4

1.2

0.8

0.6

0.4

0.2

l
y

l
t
a

[
V

]

T [

]

Fig. 14

V6340

-50 -25

+25

+50 +75 +100 +125

[

]

T [ C]

Fig. 12

Output inactive

400 mV

SEN

Output active

Version C, I, O

Version
D, J, P

Version F, L, R

T [ C]

Fig. 13

740

700

660

620

580

540

500

-50

-25

+25

+50 +75 +100 +125

[

]

Output inactive

Output active

All Versions

SEN

-40 -20 0 +20 +40 +60 +80 +100 +120

Only for versions B, H, N

= 5V

Solar Cell Power O.K. Indicator

Fig. 17

Voltage

Reference

Load

820

RES

HLMP-1700

Accurate High Voltage Monitoring

Use only a push-pull version

Fig. 18

Voltage

Reference

Output

V = R (

+ V

)

In1

Out1

Typical Applications

Reset Circuit with Hysteresis

Voltage Monitor with Manual Reset

Voltage

Reference

Output

Use only an active low version

V = V + R - I

Fig. 15

Voltage

Reference

Output

22nF

Use only an active low version

V = V + R - I

T-

Fig. 16

V = V + R

T+

V - V

V6340

Электронный компонент: V6340P

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