DS1841N+T&R Maxim Integrated Products, DS1841N+T&R Datasheet - Page 5

• Manufacturer Part Number: DS1841N+T&R
• Description: IC RES LOG NV I2C 10-TDFN
• Manufacturer: Maxim Integrated Products

Specifications of DS1841N+T&R

• Taps: 128
• Resistance (ohms): 22K
• Number Of Circuits: 1
• Temperature Coefficient: 250 ppm/°C Typical
• Memory Type: Non-Volatile
• Interface: I²C, 2-Wire Serial
• Voltage - Supply: 2.7 V ~ 5.5 V
• Operating Temperature: -40°C ~ 100°C
• Mounting Type: Surface Mount
• Package / Case: 10-TDFN Exposed Pad
• Resistance In Ohms: 22K
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

(V
CC
250
200
150
100
50
25
20
15
10
= +2.7V to +5.5V, T
0
5
0
2.5
0
SDA = SCL = V
SDA = SCL = V
UPDATE MODE BIT = 0
UPDATE MODE BIT = 0
3.0
WIPER RESISTANCE (RW)
25
RGND, RH, RW ARE FLOATING
vs. SUPPLY VOLTAGE
LUT MODE AND LUT ADDER MODE
LUT MODE AND LUT ADDER MODE
RH, RH, RW ARE FLOATING
SUPPLY CURRENT
SUPPLY VOLTAGE (V)
3.5
SDA = SCL = VCC
SDA = SCL = V
vs. SETTING
UPDATE MODE BIT = 1
UPDATE MODE BIT = 1
SETTING (DEC)
CC
CC
50
_______________________________________________________________________________________
= 5V
= 5V
4.0
A
75
= +25°C, unless otherwise noted.)
CC
4.5
100
5.0
125
5.5
Temperature-Controlled, NV, I
250
200
150
100
1.6
1.2
0.8
0.4
50
0
0
-40
0
UPDATE MODE BIT = 0
UPDATE MODE BIT = 0
RGND = 0V
RGND = 0V
RW OPEN
RW OPEN
FORCE 1.25V ON RH AND
FORCE 1.25V ON RH AND
MEASURE CURRENT
MEASURE CURRENT
-20
LUT MODE AND LUT ADDER MODE
LUT MODE AND LUT ADDER MODE
SDA AND SCL REFERENCED TO 5V
SDA AND SCL REFERENCED TO 5V
25
RGND, RH, RW ARE FLOATING
RH, RH, RW ARE FLOATING
vs. WIPER SETTING
vs. TEMPERATURE
SUPPLY CURRENT
0
UPDATE MODE BIT = 1
UPDATE MODE BIT = 1
SDA = SCL = V
WIPER CURRENT
WIPE SETTING (DEC)
TEMPERATURE (°C)
SDA = SCL = VCC
50
20
VCC = 5V
V
CC
= 5V
Typical Operating Characteristics
40
75
CC
= 5V
Logarithmic Resistor
60
100
80
125
100
250
200
150
100
50
40
30
20
10
0
0
0
0
LUT VALUE LOADED TO WR
LUT VALUE LOADED TO WR
CONVERSIONS COMPLETE
CONVERSIONS COMPLETE
POR OCCURS
POR OCCURS
UPDATE MODE BIT = 0
UPDATE MODE BIT = 0
0.5
LUT MODE AND LUT ADDER MODE
LUT MODE AND LUT ADDER MODE
1.0
RW TO RGND RESISTANCE
RGND, RH, RW ARE FLOATING
100
vs. SUPPLY VOLTAGE
RH, RH, RW ARE FLOATING
vs. SCL FREQUENCY
1.5
SUPPLY CURRENT
SCL FREQUENCY (kHz)
UPDATE MODE BIT = 1
UPDATE MODE BIT = 1
SUPPLY VOLTAGE (V)
SDA = SCL = VCC
2.0
SDA = V
2.5
200
IVR IS LOADED
IVR IS LOADED
CC
3.0
= 5V
3.5
4.0
300
4.5
2
5.0
C,
400
5.5
5