Harman Kardon HK 3370, Service Manual

Page: 83 / 123

VOLTAGE DETECTOR
Function of this IC is accurately resetting the system after
detecting voltage at the time of switching power on and instantaneous
power off in various CPU systems and other logic systems.
FEATURES
Current Consumption is Low. I
CCL
=300 A Typ.
Resetting Output Minimum Guarantee Voltage is Low 0.8V Typ.
Hysteresis Voltage is Provided. 50mV Typ.
Reset Signal Generation Starting Voltages :
KIA7019 1.9V Typ. KIA7033 3.3V Typ.
KIA7021 2.1V Typ. KIA7034 3.4V Typ.
KIA7023 2.3V Typ. KIA7035 3.5V Typ.
KIA7025 2.5V Typ. KIA7036 3.6V Typ.
KIA7027 2.7V Typ. KIA7039 3.9V Typ.
KIA7029 2.9V Typ. KIA7042 4.2V Typ.
KIA7031 3.1V Typ. KIA7045 4.5V Typ.
KIA7032 3.2V Typ.
Taping Type is also Available.
APPLICATIONS
(1) As Control Circuit of Battery-Backed Memory.
(2) As Measure Against Erroneous Operations at Power ON-OFF.
(3) As Measure Against System Runaway at Instantaneous Break
of Power Supply etc.
(4) As Resetting Function for the CPU-Mounted Equipment,
such as Personal Computers, Printers, VTRs and so forth.
N 1.00
M 0.45 MAX
N
M
C
E
C
E
L
F
F
H
G
K
JA
B
3 2 1
D
2.30
0.55 MAX
14.00 0.50
0.45
0.85
1.27
1.00
0.45
3.70 MAX
4.80 MAX
4.70 MAX
L
K
J
H
G
F
D
C
B
A
MILLIMETERS DIM
TO-92
+
_
1. V
CC
2. GND
3. OUT
DIM
A
B
D
E
G
H
K
4.70 MAX
2.50 0.20
1.70 MAX
0.45+0.15/-0.10
4.25 MAX
1.50 0.10
0.40 TYP
1.75 MAX
0.75 MIN
0.5+0.10/-0.05
SOT-89
C
J
G
D
1 2 3
2. GND
A
C
K
J
F
MILLIMETERS
H
1. V
CC
3. OUT
B
E
F F
D
+
_
+
_
BIPOLAR LINEAR INTEGRATED CIRCUIT
V
CC
OUT
GND
+
-
EQUIVALENT CIRCUIT
Type No. Marking Type No. Marking Type No. Marking
KIA7019AF/AT 6A KIA7029AF/AT 6F KIA7035AF/AT 6L
KIA7021AF/AT 6B KIA7031AF/AT 6G KIA7036AF/AT 6M
KIA7023AF/AT 6C KIA7032AF/AT 6H KIA7039AF/AT 6N
KIA7025AF/AT 6D KIA7033AF/AT 6J KIA7042AF/AT 6P
KIA7027AF/AT 6E KIA7034AF/AT 6K KIA7045AF/AT 6R
Marking
DIM MILLIMETERS
A
B
D
E
TSM
2.9 0.2
1.6+0.2/-0.1
0.70 0.05
0.4 0.1
2.8+0.2/-0.3
1.9 0.2
0.95
0.16 0.05
0.00-0.10
0.25+0.25/-0.15
C
F
G
H
I
J
K 0.60
L 0.55
A F
G
G
D
K
K B
E
C
L
H
J J
I
2
1
3
2
1
3
+
_
+
_
+
_
+
_
+
_
1. V
CC
2. OUT
3. GND
KIA7042
hk3370/hk3470 harman/kardon
83