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參數(shù)資料
| 型號(hào)： | DS1841X |
| 廠(chǎng)商： | Maxim Integrated Products |
| 文件頁(yè)數(shù)： | 17/17頁(yè) |
| 文件大?。?/td> | 0K |
| 描述： | IC RES LOG NV I2C DGTL 10TDFN |
| 產(chǎn)品培訓(xùn)模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 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： | 模具 |
| 供應(yīng)商設(shè)備封裝： | 模具 |
| 包裝： | 管件 |
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DS1841
Temperature-Controlled, NV, I2C,
Logarithmic Resistor
_______________________________________________________________________________________
9
Supply Voltage Monitoring
The DS1841 also features an internal 8-bit supply volt-
age (VCC) monitor. A value of the supply voltage mea-
surement can be read over I2C at the address 0Eh.
To calculate the supply voltage, simply convert the
hexadecimal result into decimal and then multiply it by
the LSB as shown in
the Analog Voltage Monitoring
Characteristics electrical table.
Supply Current (ICC)
The DS1841 has two supply current levels of power sup-
ply consumption. First, active current during I2C com-
munications while in the LUT-Driven Mode is the “worst
case” supply current, ICC. All functionality including I2C
communication is operating simultaneously. Second,
active current without I2C while in the LUT-Driven Mode
is quantified by the supply current, ICC2. SDA and SCL
are held statically in the high logic level.
Slave Address Byte and Address Pins
The slave address byte consists of a 7-bit slave
address plus a R/W bit (see Figure 2). The DS1841’s
slave address is determined by the state of the A0 and
A1 address pins. These pins allow up to four devices to
reside on the same I2C bus. Address pins tied to GND
result in a 0 in the corresponding bit position in the
slave address. Conversely, address pins tied to VCC
result in a 1 in the corresponding bit positions. For
example, the DS1841’s slave address byte is 50h when
A0 and A1 pins are grounded. I2C communication is
described in detail in the
I2C Serial Interface
Description section.
MEMORY
LOCATION
TEMPERATURE (
°C)
LUT34
DECREASING
TEMPERATURE
INCREASING
TEMPERATURE
1
°C HYSTERESIS
WINDOW
LUT33
LUT32
LUT31
LUT30
19
21
23
25
19
27
Figure 1. LUT Hysteresis
01
1
0
R/W
A0
A1
0
MSB
LSB
READ/WRITE BIT
SLAVE ADDRESS*
*THE SLAVE ADDRESS IS DETERMINED BY ADDRESS PINS A0, A1.
Figure 2. Slave Address Byte
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS1842 | 制造商:MAXIM 制造商全稱(chēng):Maxim Integrated Products 功能描述:76V, APD, Bias Output Stage with Current Monitoring |
| DS1842A | 制造商:MAXIM 制造商全稱(chēng):Maxim Integrated Products 功能描述:76V, APD, Bias Output Stage with Current Monitoring |
| DS1842AN+ | 功能描述:電流和電力監(jiān)控器、調(diào)節(jié)器 76V APD Bias Output Stage w/Current Mtr RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Current Regulators 電源電壓-最大:48 V 電源電壓-最小:5.5 V 工作溫度范圍:- 40 C to + 150 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HPSO-8 封裝:Reel |
| DS1842AN+T&R | 制造商:Maxim Integrated Products 功能描述:76V, APD, BIAS OUTPUT STAGE WITH CURRENT MONITORING - Tape and Reel |
| DS1842AN+TR | 制造商:MAXIM 制造商全稱(chēng):Maxim Integrated Products 功能描述:76V, APD, Bias Output Stage with Current Monitoring |
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