Temperature-Controlled, NV, I2C, Logarithmic Resistor SUPPLY CURRENT vs. " />
參數(shù)資料
型號： DS1841N+T&R
廠商： Maxim Integrated Products
文件頁數(shù)： 13/17頁
文件大小： 0K
描述： IC RES LOG NV I2C 10-TDFN
產(chǎn)品培訓(xùn)模塊： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝： 2,500
接片： 128
電阻（歐姆）： 22k
電路數(shù)： 1
溫度系數(shù)： 標(biāo)準(zhǔn)值 ±250 ppm/°C
存儲器類型： 非易失
接口： I²C，2 線串口
電源電壓： 2.7 V ~ 5.5 V
工作溫度： -40°C ~ 100°C
安裝類型： 表面貼裝
封裝/外殼： 10-WFDFN 裸露焊盤
供應(yīng)商設(shè)備封裝： 10-TDFN-EP（3x3）
包裝： 帶卷 (TR)
DS1841
Temperature-Controlled, NV, I2C,
Logarithmic Resistor
SUPPLY CURRENT
vs. SUPPLY VOLTAGE
DS1841
toc01
SUPPLY VOLTAGE (V)
SUPPLY
CURRENT
(μ
A)
5.0
4.5
4.0
3.5
3.0
50
100
150
200
250
0
2.5
5.5
SDA = SCL = VCC
RH, RH, RW ARE FLOATING
SDA = SCL = VCC
RGND, RH, RW ARE FLOATING
UPDATE MODE BIT = 0
LUT MODE AND LUT ADDER MODE
UPDATE MODE BIT = 1
LUT MODE AND LUT ADDER MODE
UPDATE MODE BIT = 1
SUPPLY CURRENT
vs. TEMPERATURE
DS1841
toc02
TEMPERATURE (
°C)
SUPPLY
CURRENT
(μ
A)
80
60
40
20
0
-20
50
100
150
200
250
0
-40
100
SDA = SCL = VCC
RH, RH, RW ARE FLOATING
SDA = SCL = VCC = 5V
RGND, RH, RW ARE FLOATING
UPDATE MODE BIT = 0
LUT MODE AND LUT ADDER MODE
UPDATE MODE BIT = 1
LUT MODE AND LUT ADDER MODE
UPDATE MODE BIT = 1
SUPPLY CURRENT
vs. SCL FREQUENCY
DS1841
toc03
SCL FREQUENCY (kHz)
SUPPLY
CURRENT
(μ
A)
300
200
100
50
100
150
200
250
0
400
SDA = SCL = VCC
RH, RH, RW ARE FLOATING
SDA = VCC = 5V
RGND, RH, RW ARE FLOATING
UPDATE MODE BIT = 0
LUT MODE AND LUT ADDER MODE
UPDATE MODE BIT = 1
LUT MODE AND LUT ADDER MODE
UPDATE MODE BIT = 1
WIPER RESISTANCE (RW)
vs. SETTING
DS1841
toc04
SETTING (DEC)
WIPER
RESISTANCE
(k
Ω
)
125
100
75
50
25
5
10
15
20
25
0
SDA = SCL = VCC = 5V
SDA = SCL = VCC = 5V
WIPER CURRENT
vs. WIPER SETTING
DS1841
toc05
WIPE SETTING (DEC)
WIPER
CURRENT
(mA)
100
75
50
25
0.4
0.8
1.2
1.6
0
125
RGND = 0V
RW OPEN
FORCE 1.25V ON RH AND
MEASURE CURRENT
RGND = 0V
RW OPEN
FORCE 1.25V ON RH AND
MEASURE CURRENT
VCC = 5V
SDA AND SCL REFERENCED TO 5V
VCC = 5V
SDA AND SCL REFERENCED TO 5V
RW TO RGND RESISTANCE
vs. SUPPLY VOLTAGE
DS1841
toc06
SUPPLY VOLTAGE (V)
RESISTANCE
AT
RW
(k
Ω
)
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
10
20
30
40
0
5.5
POR OCCURS
IVR IS LOADED
CONVERSIONS COMPLETE
LUT VALUE LOADED TO WR
CONVERSIONS COMPLETE
LUT VALUE LOADED TO WR
Typical Operating Characteristics
(VCC = +2.7V to +5.5V, TA = +25°C, unless otherwise noted.)
_______________________________________________________________________________________
5
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