BD4719 Rohm, BD4719 Datasheet - Page 4

• Manufacturer Part Number: BD4719
• Description: RESET IC
• Manufacturer: Rohm

BD47XXG
Setting of the RESET signal delay time
Delay time can be set by capacitor C
CL is charged by R
time constant of C
when Vcc is falling. The delay time of RESET signal is determined by adding the delay time of single
RESET IC to each time.
Part number and Marking of samples
( 5 )
( 1 )
GND
Vcc
( 2 )
Vout
Marking
L
( 4 )
( 3 )
L
, R
when Vcc is rising. The delay time caused by charging is determined by the
R
C
L
L
L
and the threshold voltage of RESET pin. RESET IC discharges C
Lot.No
RESET
GND
V
DD
CPU
Micro-controller
L
Marking
and resistance R
BA
BB
BC
BD
BE
BF
BG
BH
B3
BJ
Voltage
1.9V
2.0V
2.1V
2.2V
2.3V
2.4V
2.5V
2.6V
2.7V
2.8V
RESET
(=VOUT)
VCC
Part No.
BD4719
BD4720
BD4721
BD4722
BD4723
BD4724
BD4725
BD4726
BD4727
BD4728
L
VS+∆VS
VCC
VS
0V
VOH
VOL
connected to the output pin as shown below.
Marking
BK
BL
BM
BN
B4
BP
BQ
BR
BS
BT
T
PLH
Voltage
2.9V
3.0V
3.1V
3.2V
3.3V
3.4V
3.5V
3.6V
3.7V
3.8V
Part No.
BD4729
BD4730
BD4731
BD4732
BD4733
BD4734
BD4735
BD4736
BD4737
BD4738
T
PHL
Marking
BU
BV
BW
BX
BY
BZ
B1
B2
L
forcedly
Voltage
3.9V
4.0V
4.1V
4.2V
4.3V
4.4V
4.5V
4.6V
T
PLH
Part No.
BD4739
BD4740
BD4741
BD4742
BD4743
BD4744
BD4745
BD4746