Temperature-Controlled, NV, I2C, Logarithmic Resistor SUPPLY CURRENT vs. " />
參數(shù)資料
型號(hào): DS1841N+
廠(chǎng)商: Maxim Integrated Products
文件頁(yè)數(shù): 13/17頁(yè)
文件大?。?/td> 0K
描述: IC RES LOG NV I2C 5.5V 10-TDFN
標(biāo)準(zhǔn)包裝: 368
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(chǔ)器類(lèi)型: 非易失
接口: I²C,2 線(xiàn)串口
電源電壓: 2.7 V ~ 5.5 V
工作溫度: -40°C ~ 100°C
安裝類(lèi)型: 表面貼裝
封裝/外殼: 10-WFDFN 裸露焊盤(pán)
供應(yīng)商設(shè)備封裝: 10-TDFN-EP(3x3)
包裝: 管件
DS1841
Temperature-Controlled, NV, I2C,
Logarithmic Resistor
SUPPLY CURRENT
vs. SUPPLY VOLTAGE
DS1841
toc01
SUPPLY VOLTAGE (V)
SUPPLY
CURRENT
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
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
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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