파트넘버.co.kr BD4734G 데이터시트 PDF


BD4734G 반도체 회로 부품 판매점

RESET IC



ROHM Semiconductor 로고
ROHM Semiconductor
BD4734G 데이터시트, 핀배열, 회로
High-accuracy
Low current consumption
General-purpose
RESET IC
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.
5
4
123
1pin : N.C.
2pin : SUB
3pin : GND
4pin : Vout
5pin : Vcc
2.9±0.2
(5) (4)
(UNIT:mm)
(1) (2) (3)
0.13 +–00..0035
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
Typ.
4.600
Max.
4.692
4.410 4.500 4.590
4.312 4.400 4.488
4.214 4.300 4.386
4.116 4.200 4.284
4.018 4.100 4.182
3.920 4.000 4.080
3.822 3.900 3.978
3.724 3.800 3.876
3.626 3.700 3.774
3.528 3.600 3.672
3.430 3.500 3.570
3.332 3.400 3.468
3.234 3.300 3.366
3.136 3.200 3.264
3.038 3.100 3.162
2.940 3.000 3.060
2.842 2.900 2.958
2.744 2.800 2.856
2.646 2.700 2.754
2.548 2.600 2.652
2.450 2.500 2.550
2.352 2.400 2.448
2.254 2.300 2.346
2.156 2.200 2.244
2.058 2.100 2.142
1.960 2.000 2.040
1.862 1.900 1.938
Consumption
current (µA Typ.)
ICCL
ICCH
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
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
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
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
0.95
0.42
+0.05
0.04
0.1
SMP5
Hysteresis
voltage (mV)
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
Operating output
current (mA)
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
Package
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


BD4734G 데이터시트, 핀배열, 회로
Absolute Maximum Ratings(Ta=25˚C)
Parameter
Symbol
Limits
Unit
Power supply voltage
Output voltage
Power dissipation (SMP5)
Operating temperature range
Vcc
Po
Pd
Topr
–0.3 ~ +10
–0.3 ~ +10
150 *
–20 ~ +75
V
V
mW
˚C
Storage temperature range
Tstg
–40 ~ +125
˚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
Symbol Min. Typ.
Max.
Detection voltage
Detection voltage
temperature coefficient
Hysteresis voltage
"H" transfer delay time
Vs
Vs/T
Vs
TPLH
–2%
30
1.9~4.6
±0.01
50
20
+2%
100
50
"L" transfer delay time
TPHL
60
120
"L" output voltage
VOL
— 0.1 0.4
Circuit current (At ON mode)
Icc1
— 1.5 3.0
Circuit current (At OFF mode) Icc2
— 1.6 3.2
Operating limit voltage VOPL
— 0.65 0.85
Output leak current
"L" output current
IL — — 0.1
IOL
3.0 15.0
*1 TPLH : Vcc=(Vs typ.–0.4V)Æ(Vs typ.+0.4V)
*2 TPHL : Vcc=(Vs typ.+0.4V)Æ(Vs typ.–0.4V)
Unit
V
%/˚C
mV
µS
µS
V
µA
µA
V
µA
mA
Conditions
RL=4.7k, Vcc=HÆL
RL=4.7K, Ta=–20~+75˚C
RL=4.7K, Vcc=LÆHÆL
CL=100PF, RL=4.7K*1
CL=100PF, RL=4.7K*2
Vcc=VsMIN.–0.05V, RL=4.7K
Vcc=VsMIN.–0.05V, RL=
Vcc=VsTYP./0.85V, RL=
RL=4.7K, VOL0.4V
Vcc=Vout=10V
Vo=0.4V, Vcc=VsMIN.–0.05V
Timing waveform
Transfer delay time measurement circuit
VCC
VCC
VS+VS
VS
VOUT 0V
VOH
VOL
TPLH
TPHL
0.22uF
RL=4.7K
54
Vcc
Vout
100pF
VCC BD47XXG
NC
SUB
GND
123
Application Circuit
VCC
5
Vref
4
Vout
3 BD47XXG
GND
VDD
Micro
controller
reset pin




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