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Maxim Integrated Semiconductor Electronic Components Datasheet

DS3502 Datasheet

I2C POT

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Rev 1; 3/09
High-Voltage, NV, I2C POT
General Description
The DS3502 is a 7-bit, nonvolatile (NV) digital poten-
tiometer (POT) featuring an output voltage range of up to
15.5V. Programming is accomplished by an I2C-compat-
ible interface, which can operate at speeds of up to
400kHz. External voltages are applied at the RL and RH
inputs to define the lowest and highest potentiometer
outputs.
Applications
TFT-LCD VCOM Calibration
Instrumentation and Industrial Controls
Mechanical POT Replacement
Pin Configuration and Typical Operating Circuit appear at
end of data sheet.
Features
128 Wiper Tap Points
Full-Scale Resistance: 10kΩ
I2C-Compatible Serial Interface
Address Pins Allow Up to Four DS3502s to Share
the Same I2C Bus
Digital Operating Voltage: 2.5V to 5.5V
Analog Operating Voltage: 4.5V to 15.5V
Operating Temperature: -40°C to +100°C
10-Pin µSOP Package
Ordering Information
PART
TEMP RANGE
PIN-PACKAGE
DS3502U+
-40°C to +100°C 10 μSOP
DS3502U+T&R
-40°C to +100°C 10 μSOP
+Denotes a lead(Pb)-free/RoHS-compliant package.
T&R = Tape and reel.
Functional Diagram
SDA 7-BIT
SCL WIPER REGISTER
127
126
RH
DS3502
7-BIT
NONVOLATILE MEMORY
125
DECODER
LEVEL SHIFTER
2
1
CONTROL CIRCUITRY
AND
A1 ADDRESS DECODE
A0
0
RL
RW
________________________________________________________________ Maxim Integrated Products 1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
Free Datasheet http://www.datasheet4u.com/


Maxim Integrated Semiconductor Electronic Components Datasheet

DS3502 Datasheet

I2C POT

No Preview Available !

High-Voltage, NV, I2C POT
ABSOLUTE MAXIMUM RATINGS
Voltage Range on VCC Relative to GND ...............-0.5V to +6.0V
Voltage Range on V+ Relative to GND ..................-0.5V to +17V
Voltage Range on SDA, SCL, A0, A1
Relative to GND.......-0.5V to (VCC + 0.5V), not to exceed 6.0V
Voltage Range on RH, RL, RW...................................-0.5V to V+
Voltage Range Across RH and RL Pins .....................-0.5V to V+
Operating Temperature Range .........................-40°C to +100°C
Programming Temperature Range .........................0°C to +70°C
Storage Temperature Range .............................-55°C to +125°C
Soldering Temperature...........................Refer to the IPC/JEDEC
J-STD-020 Specification.
Maximum RW Current ...........................................................1mA
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
RECOMMENDED OPERATING CONDITIONS
(TA = -40°C to +100°C)
PARAMETER
Supply Voltage
V+ Voltage
Input Logic 1
(SCL, SDA, A0, A1)
SYMBOL
VCC
V+
(Note 1)
V+ > VCC
VIH
CONDITIONS
Input Logic 0
(SCL, SDA, A0, A1)
Resistor Inputs (RL, RW, RH)
Wiper Current
VIL
VRES
IWIPER
MIN
+2.5
+4.5
0.7 x
VCC
-0.3
-0.3
TYP
MAX
+5.5
+15.5
VCC
+ 0.3
0.3 x
VCC
+15.5
1
UNITS
V
V
V
V
V
mA
ELECTRICAL CHARACTERISTICS
(VCC = +2.5V to +5.5V, TA = -40°C to +100°C, unless otherwise noted.)
PARAMETER
VCC Supply Current
Standby Supply Current
V+ Bias Current
Input Leakage (SDA, SCL, A0, A1)
Wiper Response Time
Low-Level Output Voltage (SDA)
I/O Capacitance
Power-Up Recall Voltage
Power-Up Memory Recall Delay
Wiper Resistance
End-to-End Resistance (RH to RL)
RTOTAL Tolerance
CH, CL, CW Capacitance
SYMBOL
ICC
ISTBY
IV+
IL
tWRS
VOL
CI/O
VPOR
tD
RW
RTOTAL
CPOT
(Note 2)
(Note 3)
CONDITIONS
3mA sink current
(Note 4)
(Note 5)
V+ = 15.0V
TA = +25°C
MIN TYP MAX UNITS
0.2 3 mA
10 μA
+1 μA
-1 +1 μA
1 μs
0.0 0.4 V
5 10 pF
1.2 2.4 V
3 ms
5000

10 k
-20 +20 %
10 pF
2 _______________________________________________________________________________________
Free Datasheet http://www.


Part Number DS3502
Description I2C POT
Maker Maxim
PDF Download

DS3502 Datasheet PDF






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