2024年4月2日发(作者：vivoy83a的处理器)

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BD45XXXG

BD46XXXG

Voltage detectors

VOLTAGE DETECTOR IC

with counter timer

BD45XXXG

BD46XXXG

BD45XXXG and BD46XXXG are series of high-accuracy detection voltage and low current consumption

VOLTAGE DETECTOR ICs adopting CMOS process. New lineup of 156 types with delay time circuit

have developed. Delay time is fixed in the IC due to the built-in counter timer to require no external

capacitor. Total 156 types of VOLTAGE DETECTOR ICs including BD45XXXG series (Nch open drain

output) and BD46XXXG series (CMOS output), each of which has 26 kinds in every 0.1V step (2.3~4.8V)

and three kinds of delay time (50msec, 100msec, 200msec) have developed.

Applications

Every kind of appliances with microcontroller and logic circuit

Features

1) Built-in delay time circuit

(Fixed delay time by the built-in ±10% of high-accuracy counter timer)

BD45XXXG

BD46XXXG

5

4

1pin : External RESET

control

2pin : Connect to

Sub, GND

3pin : GND

4pin : V

OUT

5pin : V

DD

1

2

2) No external capacitor for setting delay time required

3) 3 kinds of delay time: 50msec

(Typ.)(BD45XX5G,BD46XX5G)

100msec

(Typ.)(BD45XX1G,BD46XX1G)

200msec

(Typ.)(BD45XX2G,BD46XX2G)

4) Detection voltage: 2.3V ~ 4.8V 0.1V step

5) High-accuracy detection voltage: ±1.0%

6) Ultra low current consumption: 0.85µA typ.

7) Output circuit: Nch open drain

(BD45XXXG)

CMOS

(BD46XXXG)

8) Package: SSOP5

(SMP5C2)

9) Operating temperature range: -40°C ~ +105°C

Application Circuit

BD45XXXG

V

DD

V

DD

V

DD

3

2.9

±

0.2

(

5

)

(

4

)

2

.

8

±

0

.

2

0

.

2

1

.

6

+

–

0

.

1

(UNIT:mm)

(

1

)(

2

)

(

3

)

1

.

2

5

M

A

X

1

.

1

±

0

.

0

5

±

0

.

0

5

0

.

0

5

0.95

0.05

0.42

+

–

0.04

0.1

SSOP5

(SMP5C2)

BD46XXXG

V

DD

V

DD

Vout

Oscillation circuit

counter timer

Reset

Oscillation circuit

counter timer

0

.

2

M

I

N

0.13

+0.05

–0.03

Vout

Reset

VrefVref

GNDERGNDER

Pin No.

SSOP5

1

ER

2

Sub

3

GND

4

V

OUT

5

V

DD

1/4

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BD45XXXG

BD46XXXG

Symbol

V

DD

– GND

V

OUT

V

CT

Pd

Topr

Tstg

Limits

– 0.3 ~ + 10

GND – 0.3 ~ + 10

GND – 0.3 ~ V

DD

+ 0.3

GND – 0.3 ~ V

DD

+ 0.3

540

– 40 ~ + 105

– 55 ~ + 125

Unit

V

V

V

Voltage detectors

Absolute Maximum Ratings (Ta=25˚C)

Power supply voltage

Output

Nch open drain output

voltage

CMOS output

ER pin input voltage

Power dissipation:SSOP5

∗

1

Operating temperature range

Storage temperature range

Parameter

∗

1

Derating: 5.4mW/

˚C

for operation above Ta=25

˚C

.(Mounted on a 70.0mmX70.0mmX16mm glass epoxy PCB.)

mW

˚C

˚C

Electrical characteristics (

Unless otherwise noted; Ta=-25˚C ~ +105˚C)

Detection voltage

temperature coefficient

Hysteresis voltage

Circuit current when ON

∗1

Parameter

Symbol

∗1

Min.

—

Typ.

±100

Max.

±360

Unit

%

µA

µA

V

mA

mA

µA

V

V

V

µA

Conditions

R

L

=470KΩ, V

DD

=L→H→L

V

DET

=2.3~3.1V

V

DD

=V

DET

–0.2V

V

DET

=3.2~4.2V

V

DET

=4.3~4.8V

V

DET

=2.3~3.1V

V

DET

=3.2~4.2V

V

DD

=V

DET

+2V

V

DET

=4.3~4.8V

R

L

=470kΩ, V

OL

≥

0.4V

V

DS

=0.5V, V

DD

=1.2V

V

DS

=0.5V, V

DD

=2.4V (V

DET

≥

2.7V)

V

DS

=0.5V, V

DD

=4.8V

V

DET

=2.3~4.2V

V

DS

=0.5V, V

DD

=6.0VV

DET

=4.3~4.8V

V

DD

=V

DS

=10V

BD45XX5G, BD46XX5G

R

L

=100kΩ

BD45XX1G, BD46XX1G

C

L

=100pF

BD45XX2G, BD46XX2G

V

ER

=2.0V

V

DET

/∆Tppm/˚C

Ta=-40˚C ~ +105˚C

∗1

Circuit current when OFF

Min. operating voltage

"L" output current

"H" output current

Output leak current

"H" transmission

delay time

ER pin "H" voltage

ER pin "L" voltage

ER pin input current

∗1

∗1

∗1

∗1

∗1

∆V

DET

V

DET

X0.03V

DET

X0.05V

DET

X0.08

—0.702.10

—0.752.25

Icc1

—0.802.40

—0.752.25

Icc2

—0.802.40

—0.852.55

V

OPL

0.95——

0.41.2—

I

OL

2.05—

—

1.02.2

I

OH

1.22.7—

——0.1

Ilaek

455055

t

PLH

90100110

180200220

2.0——

V

EH

V

EL

——0.8

I

ER

—110

∗1 This value is guranteed at Ta=25˚C.

Note) R

L

is not necessary for CMOS output type.

Note) Please refer to the detection voltage of Line-up table.

Characteristic diagram and Measurement circuit

250

200

Output delay time "L

→

H"

BD45282G

(BD4x28xG t

PLH

)

50

40

Output delay time "H

→

L"

(BD4x28x t

PLH

)

t

P

L

H

(

m

s

e

c

)

150

100

50

0

-60

BD45281G

t

P

L

H

[

µ

s

e

c

]

30

20

10

0

-60

BD45285G

-40-20120-40-20120

Ta

(°C)

5V

R

L

=100kΩ

V

OUT

GND

100pF

V

DET

±0.5V

ER

Ta

(°C)

5V

R

L

=100kΩ

V

OUT

GND

100pF

V

DD

ER

V

DET

±0.5V

V

DD

2/4