Rainbow Electronics DS1841 - Manual (Page 2)

DS1841
Temperature-Controlled, NV, I 2 C,
Logarithmic Resistor
2 _______________________________________________________________________________________
RECOMMENDED OPERATING CONDITIONS
(T A = -40°C to +100°C)
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.
Voltage Range on SDA, SCL, and
V
CC
Relative to GND .........................................-0.5V to +6.0V
Voltage Range on RH, RW, A0, and
A1 Relative to GND ................................-0.5V to (V
CC
+ 0.5V)
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 .....................See IPC/JEDEC J-STD-020
RW Current............................................................................3mA
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Supply Voltage V CC (Note 1) +2.7 +5.5 V
Input Logic 1
(SCL, SDA, A0, A1)
V IH
0.7 x
V CC
V CC
+ 0.3
V
Input Logic 0
(SCL, SDA, A0, A1)
V IL -0.3
0.3 x
V CC
V
Resistor Inputs (RW, RH) V RES -0.3
V CC
+ 0.5
V
Wiper Current I WIPER 2 mA
DC ELECTRICAL CHARACTERISTICS
(V CC = +2.7V to +5.5V, T A = -40°C to +100°C, unless otherwise noted.)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Input Leakage
(SDA, SCL, A0, A1)
I L -1 +1 μA
V
CC
Supply Current I
CC2
(Note 2) 350 μA
Low-Level Output Voltage (SDA) V OL 3mA sink current 0 0.4 V
I/O Capacitance C I/O 5 10 pF
Power-On Recall Voltage V POR (Note 3) 1.6 2.6 V
Power-Up Recall Delay t D (Note 4) 5 ms
Series Resistance R S 3.6 k
Minimum Resistance
(GND to RW)
R MIN (Note 5) 370
End-to-End Resistance
(GND to RW)
R TOTAL 22 k
R TOTAL Tolerance T A = +25°C -20 +20 %
Temp Coefficient T CV WR set to 40h ±250 ppm/°C
RH, RW Capacitance C POT 10 pF
ABSOLUTE MAXIMUM RATINGS