CAT5128TBI-10GT3 ON Semiconductor, CAT5128TBI-10GT3 Datasheet - Page 2
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CAT5128TBI-10GT3
Manufacturer Part Number
CAT5128TBI-10GT3
Description
IC POT DIGITL 10K 32TAP SOT23-8
Manufacturer
ON Semiconductor
Series
DPPr
Datasheet
1.CAT5128TBI-10GT3.pdf
(7 pages)
Specifications of CAT5128TBI-10GT3
Taps
32
Resistance (ohms)
10K
Number Of Circuits
1
Temperature Coefficient
50 ppm/°C Typical
Memory Type
Volatile
Interface
Up/Down
Voltage - Supply
2.5 V ~ 5.5 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
SOT-23-8
Resistance In Ohms
10K
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
CAT5128TBI-10-GT3CT
CAT5128TBI-10-GT3CT
CAT5128TBI-10GT3CT
CAT5128TDI-10-GT3CT
CAT5128TDI-10-GT3CT
CAT5128TBI-10-GT3CT
CAT5128TBI-10GT3CT
CAT5128TDI-10-GT3CT
CAT5128TDI-10-GT3CT
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
CAT5128TBI-10GT3
Manufacturer:
ON
Quantity:
2 933
Functional Diagrams
Pin Description
UP: Step−Up Control Input
UP input will cause the wiper to move one increment toward
the A terminal.
DOWN: Step−Down Control Input
wiper to move one increment towards the B terminal.
A: High End Potentiometer Terminal
required that this terminal be connected to a potential greater
than the B terminal. Voltage applied to the A terminal cannot
exceed the supply voltage, V
W: Wiper Potentiometer Terminal
on the resistor array is controlled by the control inputs, UP
and DOWN. Voltage applied to the W terminal cannot
exceed the supply voltage, V
B: Low End Potentiometer Terminal
required that this terminal be connected to a potential less
than the A terminal. Voltage applied to the B terminal cannot
exceed the supply voltage, V
B and A are electrically interchangeable.
DOWN
When DOWN input is high, a high−to−low transition on
A high−to−low transition on DOWN input will cause the
A is the high end terminal of the potentiometer. It is not
W is the wiper terminal of the potentiometer. Its position
B is the low end terminal of the potentiometer. It is not
UP
Figure 1. General
UP/DOWN
Power On
Control
Recall
V
CC
GND
CC
CC
CC
or go below ground, GND.
or go below ground, GND.
or go below ground, GND.
DOWN
A
W
B
GND
V
UP
CC
UP/DOWN
COUNTER
5−BIT
http://onsemi.com
Figure 2. Detailed
2
Device Operation
potentiometer with A and B equivalent to the high and low
terminals
potentiometer’s wiper. There are 32 available tap positions
including the resistor end points, A and B. There are 31
resistor elements connected in series between the A and B
terminals. The wiper terminal is connected to one of the 32
taps and controlled by two inputs, UP and DOWN. These
inputs control a five−bit up/down counter whose output is
decoded to select the wiper position.
one step the wiper position (R
and R
input is high, a high−to−low transition on UP input will
increment one step the wiper position (R
with 1LSB and R
mechanical equivalent and does not move beyond the last
position. When the CAT5128 is powered−down, the wiper
position is reset. When power is restored, the counter is set
to the mid point, tap 15.
The CAT5128 operates like a digitally controlled
A high−to−low transition on DOWN input will decrement
The wiper, when at either fixed terminal, acts like its
31
30
29
28
WA
2
1
0
will increase with 1LSB). If and only if DOWN
and
TRANS−
GATES
FER
WA
W
will decrease with 1LSB).
equivalent
WB
will decrease with 1LSB
A
B
W
Figure 3. Electronic
to
Implementation
Potentiometer
the
WB
will increase
mechanical
A
W
B