2024年3月29日发(作者：贲理全)
元器件交易网
High-accuracy
Low current consumption
General-purpose
5
4
RESET IC
1
BD47XXG series
Description
BD47XXG is a series of RESET ICs developed to prevent
system error at transient state when the power of CPU and
logic circuit switches ON/OFF or shutdown. These ICs consist
of Power, GND, and reset output to detect power supply voltage
of various systems and to output reset signal. These ICs are
more practical for portable products because of their ultra-small
package and low current consumption.
Features
1) Detection voltage: 0.1V step line up 1.9~4.6V(Typ.)
2) High-accuracy voltage detection Vs±2%(Max.)
3) Low current consumption
4) "L" reset output of open collector
5) Small SMP5 package
Applications
Portable products, Equipments with CPU and logic circuit
Series characteristics
Part No.
BD4746G
BD4745G
BD4744G
BD4743G
BD4742G
BD4741G
BD4740G
BD4739G
BD4738G
BD4737G
BD4736G
BD4735G
BD4734G
BD4733G
BD4732G
BD4731G
BD4730G
BD4729G
BD4728G
BD4727G
BD4726G
BD4725G
BD4724G
BD4723G
BD4722G
BD4721G
BD4720G
BD4719G
Detection voltage Vs (V)
Min
4.508
4.410
4.312
4.214
4.116
4.018
3.920
3.822
3.724
3.626
3.528
3.430
3.332
3.234
3.136
3.038
2.940
2.842
2.744
2.646
2.548
2.450
2.352
2.254
2.156
2.058
1.960
1.862
Typ.
4.600
4.500
4.400
4.300
4.200
4.100
4.000
3.900
3.800
3.700
3.600
3.500
3.400
3.300
3.200
3.100
3.000
2.900
2.800
2.700
2.600
2.500
2.400
2.300
2.200
2.100
2.000
1.900
Max.
4.692
4.590
4.488
4.386
4.284
4.182
4.080
3.978
3.876
3.774
3.672
3.570
3.468
3.366
3.264
3.162
3.060
2.958
2.856
2.754
2.652
2.550
2.448
2.346
2.244
2.142
2.040
1.938
Consumption
current (µA Typ.)
I
CCH
I
CCL
1.5
1.6
1.5
1.6
1.5
1.6
1.6
1.5
1.51.6
1.5
1.6
1.51.6
1.51.6
1.5
1.6
1.5
1.6
1.5
1.6
1.51.6
1.51.6
1.6
1.5
1.6
1.5
1.5
1.6
1.51.6
1.51.6
1.5
1.6
1.5
1.6
1.51.6
1.5
1.6
1.5
1.6
1.5
1.6
1.5
1.6
1.5
1.6
1.5
1.6
1.5
1.6
Hysteresis
voltage (mV)
2
3
1pin : N.C.
2pin : SUB
3pin : GND
4pin : Vout
5pin : Vcc
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
SMP5
Operating output
current (mA)
0
.
2
M
I
N
0.05
0.13
+
–
0.03
Package
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
15
15
15
15
15
15
15
15
15
15
15
15
15
15
15
15
15
15
15
15
15
15
15
15
15
15
15
15
SMP5
SMP5
SMP5
SMP5
SMP5
SMP5
SMP5
SMP5
SMP5
SMP5
SMP5
SMP5
SMP5
SMP5
SMP5
SMP5
SMP5
SMP5
SMP5
SMP5
SMP5
SMP5
SMP5
SMP5
SMP5
SMP5
SMP5
SMP5
元器件交易网
Absolute Maximum Ratings(Ta=25˚C)
Parameter
Power supply voltage
Output voltage
Power dissipation (SMP5)
Operating temperature range
Storage temperature range
Symbol
Vcc
Po
Pd
Topr
Tstg
Limits
–0.3 ~ +10
–0.3 ~ +10
150
*
–20 ~ +75
–40 ~ +125
Unit
V
V
mW
˚C
˚C
Note) The ratings shown above indicate breakdown limit of the pin and should not be regarded as the values that guarantee the operation.
*
Derating : 1.5mW/˚C for operation above Ta=25˚C
Electrical characteristics
(Unless otherwise noted; Ta=25
˚C
)
Parameter
Detection voltage
Detection voltage
temperature coefficient
Symbol
Vs
Vs/∆T
∆Vs
TPLH
TPHL
VOL
Icc1
Icc2
VOPL
IL
IOL
Min.
–2%
—
30
—
—
—
—
—
—
—
3.0
Typ.
1.9~4.6
±0.01
50
20
60
0.1
1.5
1.6
0.65
—
15.0
Max.
+2%
—
100
50
120
0.4
3.0
3.2
0.85
0.1
—
Unit
V
%/˚C
mV
µS
µS
V
µA
µA
V
µA
mA
Conditions
RL=4.7kΩ, Vcc=HÆL
RL=4.7KΩ, Ta=–20~+75˚C
RL=4.7KΩ, Vcc=LÆHÆL
CL=100PF, RL=4.7KΩ
CL=100PF, RL=4.7KΩ
*1
*2
Hysteresis voltage
"H" transfer delay time
"L" transfer delay time
"L" output voltage
Circuit current
(At ON mode)
Circuit current
(At OFF mode)
Operating limit voltage
Output leak current
"L" output current
Vcc=VsMIN.–0.05V, RL=4.7KΩ
Vcc=VsMIN.–0.05V, RL=∞
Vcc=VsTYP./0.85V, RL=∞
RL=4.7KΩ, VOL≥0.4V
Vcc=Vout=10V
Vo=0.4V, Vcc=VsMIN.–0.05V
*1 TPLH : Vcc=(Vs typ.–0.4V)Æ(Vs typ.+0.4V)
*2 TPHL : Vcc=(Vs typ.+0.4V)Æ(Vs typ.–0.4V)
Timing waveform
VCC
VCC
VS+∆VS
VS
Transfer delay time measurement circuit
0.22uF
RL=4.7KΩ
54
Vout
VOUT
0V
VOH
T
PLH
T
PHL
VCC
Vcc
100pF
BD47XXG
NCSUBGND
123
VOL
Application Circuit
V
DD
V
CC
5
Micro
controller
4
reset pin
Vout
Vref
3
BD47XXG
GND
2024年3月29日发(作者：贲理全)
元器件交易网
High-accuracy
Low current consumption
General-purpose
5
4
RESET IC
1
BD47XXG series
Description
BD47XXG is a series of RESET ICs developed to prevent
system error at transient state when the power of CPU and
logic circuit switches ON/OFF or shutdown. These ICs consist
of Power, GND, and reset output to detect power supply voltage
of various systems and to output reset signal. These ICs are
more practical for portable products because of their ultra-small
package and low current consumption.
Features
1) Detection voltage: 0.1V step line up 1.9~4.6V(Typ.)
2) High-accuracy voltage detection Vs±2%(Max.)
3) Low current consumption
4) "L" reset output of open collector
5) Small SMP5 package
Applications
Portable products, Equipments with CPU and logic circuit
Series characteristics
Part No.
BD4746G
BD4745G
BD4744G
BD4743G
BD4742G
BD4741G
BD4740G
BD4739G
BD4738G
BD4737G
BD4736G
BD4735G
BD4734G
BD4733G
BD4732G
BD4731G
BD4730G
BD4729G
BD4728G
BD4727G
BD4726G
BD4725G
BD4724G
BD4723G
BD4722G
BD4721G
BD4720G
BD4719G
Detection voltage Vs (V)
Min
4.508
4.410
4.312
4.214
4.116
4.018
3.920
3.822
3.724
3.626
3.528
3.430
3.332
3.234
3.136
3.038
2.940
2.842
2.744
2.646
2.548
2.450
2.352
2.254
2.156
2.058
1.960
1.862
Typ.
4.600
4.500
4.400
4.300
4.200
4.100
4.000
3.900
3.800
3.700
3.600
3.500
3.400
3.300
3.200
3.100
3.000
2.900
2.800
2.700
2.600
2.500
2.400
2.300
2.200
2.100
2.000
1.900
Max.
4.692
4.590
4.488
4.386
4.284
4.182
4.080
3.978
3.876
3.774
3.672
3.570
3.468
3.366
3.264
3.162
3.060
2.958
2.856
2.754
2.652
2.550
2.448
2.346
2.244
2.142
2.040
1.938
Consumption
current (µA Typ.)
I
CCH
I
CCL
1.5
1.6
1.5
1.6
1.5
1.6
1.6
1.5
1.51.6
1.5
1.6
1.51.6
1.51.6
1.5
1.6
1.5
1.6
1.5
1.6
1.51.6
1.51.6
1.6
1.5
1.6
1.5
1.5
1.6
1.51.6
1.51.6
1.5
1.6
1.5
1.6
1.51.6
1.5
1.6
1.5
1.6
1.5
1.6
1.5
1.6
1.5
1.6
1.5
1.6
1.5
1.6
Hysteresis
voltage (mV)
2
3
1pin : N.C.
2pin : SUB
3pin : GND
4pin : Vout
5pin : Vcc
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
SMP5
Operating output
current (mA)
0
.
2
M
I
N
0.05
0.13
+
–
0.03
Package
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
15
15
15
15
15
15
15
15
15
15
15
15
15
15
15
15
15
15
15
15
15
15
15
15
15
15
15
15
SMP5
SMP5
SMP5
SMP5
SMP5
SMP5
SMP5
SMP5
SMP5
SMP5
SMP5
SMP5
SMP5
SMP5
SMP5
SMP5
SMP5
SMP5
SMP5
SMP5
SMP5
SMP5
SMP5
SMP5
SMP5
SMP5
SMP5
SMP5
元器件交易网
Absolute Maximum Ratings(Ta=25˚C)
Parameter
Power supply voltage
Output voltage
Power dissipation (SMP5)
Operating temperature range
Storage temperature range
Symbol
Vcc
Po
Pd
Topr
Tstg
Limits
–0.3 ~ +10
–0.3 ~ +10
150
*
–20 ~ +75
–40 ~ +125
Unit
V
V
mW
˚C
˚C
Note) The ratings shown above indicate breakdown limit of the pin and should not be regarded as the values that guarantee the operation.
*
Derating : 1.5mW/˚C for operation above Ta=25˚C
Electrical characteristics
(Unless otherwise noted; Ta=25
˚C
)
Parameter
Detection voltage
Detection voltage
temperature coefficient
Symbol
Vs
Vs/∆T
∆Vs
TPLH
TPHL
VOL
Icc1
Icc2
VOPL
IL
IOL
Min.
–2%
—
30
—
—
—
—
—
—
—
3.0
Typ.
1.9~4.6
±0.01
50
20
60
0.1
1.5
1.6
0.65
—
15.0
Max.
+2%
—
100
50
120
0.4
3.0
3.2
0.85
0.1
—
Unit
V
%/˚C
mV
µS
µS
V
µA
µA
V
µA
mA
Conditions
RL=4.7kΩ, Vcc=HÆL
RL=4.7KΩ, Ta=–20~+75˚C
RL=4.7KΩ, Vcc=LÆHÆL
CL=100PF, RL=4.7KΩ
CL=100PF, RL=4.7KΩ
*1
*2
Hysteresis voltage
"H" transfer delay time
"L" transfer delay time
"L" output voltage
Circuit current
(At ON mode)
Circuit current
(At OFF mode)
Operating limit voltage
Output leak current
"L" output current
Vcc=VsMIN.–0.05V, RL=4.7KΩ
Vcc=VsMIN.–0.05V, RL=∞
Vcc=VsTYP./0.85V, RL=∞
RL=4.7KΩ, VOL≥0.4V
Vcc=Vout=10V
Vo=0.4V, Vcc=VsMIN.–0.05V
*1 TPLH : Vcc=(Vs typ.–0.4V)Æ(Vs typ.+0.4V)
*2 TPHL : Vcc=(Vs typ.+0.4V)Æ(Vs typ.–0.4V)
Timing waveform
VCC
VCC
VS+∆VS
VS
Transfer delay time measurement circuit
0.22uF
RL=4.7KΩ
54
Vout
VOUT
0V
VOH
T
PLH
T
PHL
VCC
Vcc
100pF
BD47XXG
NCSUBGND
123
VOL
Application Circuit
V
DD
V
CC
5
Micro
controller
4
reset pin
Vout
Vref
3
BD47XXG
GND