en ta8029s 20020308 datasheet, Elektronika
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TA8029S
TOSHIBA BIPOLAR LINEAR INTEGRATED CIRCUIT SILICON MONOLITHIC
TA8029S
FREQUENCY TO VOLTAGE CONVERTER
The TA8029S is a small 9
-
pin SIP IC incorporating an accurate
frequency / voltage converter and two voltage comparators.
It has a Schmitt input circuit and becomes active on the positive
edge of the input. Its F / V output is stable even when it is
supplied with a high
-
frequency input. Since the V
CC
pin connects
to a shunt regulator, stable frequency detection is assured
regardless of the battery voltage. In addition, its wide operating
temperature range allows it to be used for a wide variety of
applications.
FEATURES
Weight: 0.92 g (typ.)
Schmitt input circuit incorporated
Stable F / V output in response to high-frequency input
Two comparators served by single power supplies are incorporated.
Shunt regulator incorporated
Operating temperature range : from −40~85°C
Small plastic SIP
-
9 pin
BLOCK DIAGRAM AND PIN LAYOUT
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TA8029S
PIN DESCRIPTION
PIN No.
SYMBOL
DESCRIPTION
1
IN
Frequency input pin. The IC becomes active on the leading edge of the input.
2
TC
One-shot pulse setting pin which connects to a capacitor.
3
F / V
F / V conversion output pin which connects to an charging capacitor and resistor. The signal
from this pin is also the input to the two built-in comparator.
4
O1
Comparator 1 output pin. This pin provides an NPN transistor open-collector output and has a
current capacity of up to 30mA.
5
GND
Grounded
6
I
1
+
Non-inverted PNP input pin for comparator 1.
7
I
2
+
Non-inverted PNP input pin for comparator 2.
8
O
2
Comparator 2 output pin. This pin provides an NPN transistor open-collector output and has a
current capacity of up to 30mA.
9
V
CC
Power supply pin which connects to a 6V Zener diode.
TIMING CHART
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TA8029S
MAXIMUM RATINGS
(Ta = 25°C)
CHARACTERISTIC
SYMBOL
RATING
UNIT
Supply Current
I
CC
30
mA
Input Voltage
V
IN
−0.3~30
V
Output Voltage
V
OUT
−0.3~30
V
Output Current
I
OUT
30
mA
Power Dissipation
P
D
350 (Note)
mW
Operating Temperature
T
opr
−40~85
°C
Storage Temperature
T
stg
−55~150
°C
Note: Ta≤85°C
ELECTRICAL CHARACTERISTICS
(Ta = 25°C, V
CC
= 5V)
CHARACTERISTIC
SYMBOL
PIN
TEST
CIR-
CUIT
TEST CONDITION
MIN TYP. MAX UNIT
Current Consumption
I
CC
V
CC
―
―
3.0
5
mA
Regulated Voltage
V
R
V
CC
― I
CC
= 12mA
5.5
6.0
6.5
V
Input Current
I
IN
IN ―
IN
= 0~20V
−10 ―
10
µA
Input Voltage
V
IH
IN
―
2.8 ― ―
V
V
IL
―
― ―
0.8
Input Rise Rate
V
LH
IN ―
0.5 ― ―
V / ms
Input Fall Rate
V
HL
IN ―
0.1 ― ―
V / ms
I
OL
TC
―
TC
= 2.5V
―
43 ―
Output Current
I
OH
―
TC
= 2.5V
― −73 ―
µA
I
OH
F / V ―
−250 −350 −500
F / V Conversion Coefficient
K
F / V ―
C
T
= 0.01µF, R
T
= 27kΩ
f = 100Hz
(Note 1)
―
7.8 ― ―
Linearity
―
C
T
= 0.01µF, R
T
= 27kΩ
(Note 2)
―
±3.0 ―
%
Input Offset Voltage
V
IO
I
1
+
/ I
2
+
―
―
2
10
mV
Input Current
I
IN
I
1
+
/ I
2
+
―
― −0.2 −1
µA
Common-mode Input Voltage
V
CM
I
1
+
/ I
2
+
―
0 ―
V
CC
−1.5
V
Voltage Gain
A
V
―
―
100 ―
dB
Output Voltage
V
OL
1
/ O
2
― I
OL
= 10mA
― ―
0.5
V
Output Leakage Current
I
LEAK
1
/ O
2
―
O
= 16V
― ―
5
µA
Notes:
1. Calculated from V
O
= K·V
CC
·C
T
·R
T
·f
2. Straight line deviation at f = 50Hz and f = 150Hz relative to that at f = 100Hz
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TA8029S
STANDARD CHARACTERISTICS
EXAMPLE OF APPLICATION CIRCUIT
1. FREQUENCY−VOLTAGE CONVERSION CIRCUIT
2. FREQUENCY DETECTION CIRCUIT
RECOMMENDED CONDITION
PART NAME
MIN
MAX
UNIT
C
T
1000
pF
R
T
20
kΩ
f
IN
5
kHz
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 TA8029S
PACKAGE DIMENSIONS
Weight: 0.92g (Typ.)
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