- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄9443 > MCP40D17T-104E/LT (Microchip Technology)IC DGTL POT 100K 128TAPS SC70-6 PDF資料下載
參數(shù)資料
| 型號(hào)： | MCP40D17T-104E/LT |
| 廠商： | Microchip Technology |
| 文件頁數(shù)： | 25/43頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC DGTL POT 100K 128TAPS SC70-6 |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 接片： | 128 |
| 電阻（歐姆）： | 100k |
| 電路數(shù)： | 1 |
| 溫度系數(shù)： | 標(biāo)準(zhǔn)值 150 ppm/°C |
| 存儲(chǔ)器類型： | 易失 |
| 接口： | I²C |
| 電源電壓： | 1.8 V ~ 5.5 V |
| 工作溫度： | -40°C ~ 125°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 6-TSSOP，SC-88，SOT-363 |
| 供應(yīng)商設(shè)備封裝： | SC-70-6 |
| 包裝： | 標(biāo)準(zhǔn)包裝 |
| 產(chǎn)品目錄頁面： | 674 (CN2011-ZH PDF) |
| 其它名稱： | MCP40D17T-104E/LTDKR |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁當(dāng)前第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁
2009 Microchip Technology Inc.
DS22152B-page 31
MCP40D17/18/19
4.0
GENERAL OVERVIEW
The MCP40D17/18/19 devices are general purpose
digital
potentiometers
intended
to
be
used
in
applications where a programmable resistance with
moderate bandwidth is desired.
This Data Sheet covers a family of three Digital
Potentiometer and Rheostat devices. The MCP40D18
device is the Potentiometer configuration, while the
MCP40D17 and MCP40D19 devices are the Rheostat
configuration.
Applications generally suited for the MCP40D17/18/19
devices include:
Computer Servers
Set point or offset trimming
Sensor calibration
Selectable gain and offset amplifier designs
Cost-sensitive mechanical trim pot replacement
As the Device Block Diagram shows, there are four
main functional blocks. These are:
The POR/BOR operation and the Memory Map are
discussed in this section and the I2C and Resistor
Network operation are described in their own sections.
The Serial Commands commands are discussed in
4.1
POR/BOR Operation
The Power-on Reset is the case where the device is
having power applied to it from VSS. The Brown-out
Reset occurs when a device had power applied to it,
and that power (voltage) drops below the specified
range.
The devices RAM retention voltage (VRAM) is lower
than the POR/BOR voltage trip point (VPOR/VBOR). The
maximum VPOR/VBOR voltage is less than 1.8V.
When VPOR/VBOR < VDD < 2.7V, the Resistor Network’s
electrical performance may not meet the data sheet
specifications. In this region, the device is capable of
reading and writing to its volatile memory if the proper
serial command is executed.
Table 4-1 shows the digital pot’s level of functionality
the Power-up and Brown-out functionality.
4.1.1
POWER-ON RESET
When the device powers up, the device VDD will cross
the VPOR/VBOR voltage. Once the VDD voltage crosses
the VPOR/VBOR voltage, the following happens:
Volatile wiper register is loaded with the default
wiper value (3Fh)
The device is capable of digital operation
4.1.2
BROWN-OUT RESET
When the device powers down, the device VDD will
cross the VPOR/VBOR voltage. Once the VDD voltage
decreases below the VPOR/VBOR voltage the following
happens:
Serial Interface is disabled
If the VDD voltage decreases below the VRAM voltage
the following happens:
Volatile wiper registers may become corrupted
As the voltage recovers above the VPOR/VBOR voltage
Serial commands not completed due to a Brown-out
condition may cause the memory location to become
corrupted.
4.1.3
WIPER REGISTER (RAM)
The Wiper Register is volatile memory that starts
functioning at the RAM retention voltage (VRAM). The
Wiper Register will be loaded with the default wiper
value when VDD will rise above the VPOR/VBOR voltage.
4.1.4
DEVICE CURRENTS
The current of the device can be classified into two
modes of the device operation. These are:
Serial Interface Inactive (Static Operation)
Serial Interface Active
Static Operation occurs when a Stop condition is
received. Static Operation is exited when a Start
condition is received.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MCP4017T-502E/LT | IC DGTL POT 5K 128TAPS SC70-6 |
| MCP4018T-104E/LT | IC DGTL POT 100K 128TAPS SC70-6 |
| MCP4017T-104E/LT | IC DGTL POT 100K 128TAPS SC70-6 |
| VE-B1F-IU-F3 | CONVERTER MOD DC/DC 72V 200W |
| VE-B1D-IU-F1 | CONVERTER MOD DC/DC 85V 200W |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MCP40D17T-502AE/LT | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:7-Bit Single I2C? (with Command Code) Digital POT with Volatile Memory in SC70 |
| MCP40D17T-502E/LT | 功能描述:數(shù)字電位計(jì) IC 5k I2C sngl 7-bit volatile memory RoHS:否 制造商:Maxim Integrated 電阻:200 Ohms 溫度系數(shù):35 PPM / C 容差:25 % POT 數(shù)量:Dual 每 POT 分接頭:256 弧刷存儲(chǔ)器:Volatile 緩沖刷: 數(shù)字接口:Serial (3-Wire, SPI) 描述/功能:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 工作電源電壓:1.7 V to 5.5 V 電源電流:27 uA 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFN-16 封裝:Reel |
| MCP40D17T-502E/LT | 制造商:Microchip Technology Inc 功能描述:IC DIGITAL POT 5KOHM 128 SGL SC70-6 |
| MCP40D17T502ELT | 制造商:MICRO CHIP 功能描述:Pb Free |
| MCP40D17T-503AE/LT | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:7-Bit Single I2C? (with Command Code) Digital POT with Volatile Memory in SC70 |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。