Rainbow Electronics BD4719G User Manual
Bd47xxg series, Reset ic, Smp5
BD47XXG series
High-accuracy
Low current consumption
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.
SMP5
Description
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
Features
Portable products, Equipments with CPU and logic circuit
Applications
Series characteristics
Typ.
4.600
Max.
4.692
I
CCH
1.5
I
CCL
Min
4.508
BD4746G
50
15
SMP5
4.500
4.590
1.5
4.410
BD4745G
50
15
SMP5
4.400
4.488
1.5
4.312
BD4744G
50
15
SMP5
4.300
4.386
1.5
4.214
BD4743G
50
15
SMP5
4.200
4.284
1.5
1.6
1.6
1.6
1.6
1.6
1.6
1.6
1.6
1.6
1.6
1.6
1.6
1.6
1.6
1.6
1.6
1.6
1.6
1.6
1.6
1.6
1.6
1.6
1.6
1.6
1.6
1.6
1.6
4.116
BD4742G
50
15
SMP5
4.100
4.182
1.5
4.018
BD4741G
50
15
SMP5
4.000
4.080
1.5
3.920
BD4740G
50
15
SMP5
3.900
3.978
1.5
3.822
BD4739G
50
15
SMP5
3.800
3.876
1.5
3.724
BD4738G
50
15
SMP5
3.700
3.774
1.5
3.626
BD4737G
50
15
SMP5
3.600
3.672
1.5
3.528
BD4736G
50
15
SMP5
3.500
3.570
1.5
3.430
BD4735G
50
15
SMP5
3.400
3.468
1.5
3.332
BD4734G
50
15
SMP5
3.300
3.366
1.5
3.234
BD4733G
50
15
SMP5
3.200
3.264
1.5
3.136
BD4732G
50
15
SMP5
3.100
3.162
1.5
3.038
BD4731G
50
15
SMP5
3.000
3.060
1.5
2.940
BD4730G
50
15
SMP5
2.900
2.958
1.5
2.842
BD4729G
50
15
SMP5
2.800
2.856
1.5
2.744
BD4728G
50
15
SMP5
2.700
2.754
1.5
2.646
BD4727G
50
15
SMP5
2.600
2.652
1.5
2.548
BD4726G
50
15
SMP5
2.500
2.550
1.5
2.450
BD4725G
50
15
SMP5
2.400
2.448
1.5
2.352
BD4724G
50
15
SMP5
2.300
2.346
1.5
2.254
BD4723G
50
15
SMP5
2.200
2.244
1.5
2.156
BD4722G
50
15
SMP5
2.100
2.142
1.5
2.058
BD4721G
50
15
SMP5
2.000
2.040
1.5
1.960
BD4720G
50
15
SMP5
1.900
1.938
1.5
1.862
BD4719G
50
15
SMP5
Detection voltage Vs (V)
Consumption
current (
µA Typ.)
Package
Hysteresis
voltage (mV)
Operating output
current (mA)
Part No.
General-purpose
RESET IC
1
2
4
5
3
1pin : N.C.
2pin : SUB
3pin : GND
4pin : Vout
5pin : Vcc
(5)
2.9
±
0.2
0.95
0.1
1.
25
M
AX
1.
6
–
0.
1
+
0.
2
2.
8
±
0.
2
0.
05
±
0.
05
1.
1
±
0.
05
0.42
(UNIT:mm)
(3)
(4)
(2)
(1)
+
0.05
0.13
–
0.03
+
0.05
–
0.04
0.2
MI
N