- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄9372 > ISL23415UFUZ-T7A (Intersil)IC DGTL POT 256POS 50K 10TQFN PDF資料下載
參數(shù)資料
| 型號(hào)： | ISL23415UFUZ-T7A |
| 廠商： | Intersil |
| 文件頁(yè)數(shù)： | 5/20頁(yè) |
| 文件大?。?/td> | 0K |
| 描述： | IC DGTL POT 256POS 50K 10TQFN |
| 產(chǎn)品培訓(xùn)模塊： | Solutions for Industrial Control Applications |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 系列： | XDCP™ |
| 接片： | 256 |
| 電阻（歐姆）： | 50k |
| 電路數(shù)： | 1 |
| 溫度系數(shù)： | 標(biāo)準(zhǔn)值 85 ppm/°C |
| 存儲(chǔ)器類型： | 易失 |
| 接口： | 4 線 SPI（芯片選擇） |
| 電源電壓： | 1.2 V ~ 5.5 V，1.7 V ~ 5.5 V |
| 工作溫度： | -40°C ~ 125°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 10-TFSOP，10-MSOP（0.118"，3.00mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 10-MSOP |
| 包裝： | 標(biāo)準(zhǔn)包裝 |
| 其它名稱： | ISL23415UFUZ-T7ADKR |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)當(dāng)前第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)第16頁(yè)第17頁(yè)第18頁(yè)第19頁(yè)第20頁(yè)
ISL23415
13
FN7780.1
August 16, 2011
Functional Pin Description
Potentiometers Pins
RH AND RL
The high (RH) and low (RL) terminals of the ISL23415 are
equivalent to the fixed terminals of a mechanical potentiometer.
The RH and RL are referenced to the relative position of the wiper
and not the voltage potential on the terminals. With the WR
register set to 255 decimal, the wiper will be closest to RH, and
with the WR register set to 0, the wiper is closest to RL.
RW
The RW is the wiper terminal, and it is equivalent to the
moveable terminal of a mechanical potentiometer. The position
of the wiper within the array is determined by the WR register.
Power Pins
VCC
Power terminal for the potentiometer section analog power
source. Can be any value needed to support voltage range of DCP
pins, from 1.7V to 5.5V, independent of the VLOGIC voltage.
Bus Interface Pins
SERIAL CLOCK (SCL)
This input is the serial clock of the SPI serial interface.
SERIAL DATA INPUT (SDI)
The SDI is a serial data input pin for SPI interface. It receives
operation code, wiper address and data from the SPI remote
host device. The data bits are shifted in at the rising edge of the
serial clock SCK, while the CS input is low.
SERIAL DATA OUTPUT (SDO)
The SDO is a serial data output pin. During a read cycle, the data
bits are shifted out on the falling edge of the serial clock SCK and
will be available to the master on the following rising edge of SCK.
The output type is configured through ACR[1] bit for Push-Pull or
Open Drain operation. Default setting for this pin is Push-Pull. An
external pull-up resistor is required for Open Drain output
operation. When CS is HIGH, the SDO pin is in tri-state (Z) or
high-tri-state (Hi-Z) depends on the selected configuration.
CHIP SELECT (CS)
CS LOW enables the ISL23415, placing it in the active power
mode. A HIGH to LOW transition on CS is required prior to the
start of any operation after power-up. When CS is HIGH, the
ISL23415 is deselected and the SDO pin is at high impedance,
and the device will be in the standby state.
VLOGIC
Digital power source for the logic control section. It supplies an
internal level translator for 1.2V to 5.5V serial bus operation. Use
the same supply as the I2C logic source.
Principles of Operation
The ISL23415 is an integrated circuit incorporating one DCP with
its associated registers and an SPI serial interface providing
direct communication between a host and the potentiometer.
The resistor array is comprised of individual resistors connected
in series. At either end of the array and between each resistor is
an electronic switch that transfers the potential at that point to
the wiper.
The electronic switches on the device operate in a “make before
break” mode when the wiper changes tap positions.
Voltage at any DCP pins, RH, RL or RW, should not exceed VCC
level at any conditions during power-up and normal operation.
The VLOGIC pin needs to be connected to the SPI bus supply
which allows reliable communication with the wide range of
microcontrollers and independent of the VCC level. This is
extremely important in systems where the digital supply has
lower levels than the analog supply.
FIGURE 23. 10k -3dB CUT OFF FREQUENCY
FIGURE 24. STANDBY CURRENT vs TEMPERATURE
Typical Performance Curves (Continued)
RTOTAL = 10k
-3dB FREQUENCY = 1.4MHz AT MIDDLE TAP
CH1: 0.5V/DIV, 0.2s/DIV RH PIN
CH2: 0.2V/DIV, 0.2s/DIV RW PIN
0
0.2
0.4
0.6
0.8
1.0
1.2
-40
-15
10
35
60
85
110
S
T
A
N
D
B
Y
C
U
R
E
N
T
I C
C
(
A
)
TEMPERATURE (°C)
VCC = 5.5V, VLOGIC = 5.5V
VCC = 1.7V, VLOGIC = 1.2V
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| VE-BNY-MX-F3 | CONVERTER MOD DC/DC 3.3V 49.5W |
| VE-BNY-MX-F2 | CONVERTER MOD DC/DC 3.3V 49.5W |
| VE-BNY-MW-F4 | CONVERTER MOD DC/DC 3.3V 66W |
| VE-BNY-MW-F3 | CONVERTER MOD DC/DC 3.3V 66W |
| VE-B3P-MY-F4 | CONVERTER MOD DC/DC 13.8V 50W |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ISL23415UFUZ-TK | 功能描述:數(shù)字電位計(jì) IC 256 TAP VOLATILE SPI DL FL RNG DCP 10LD 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 |
| ISL23415WFRUZ-T7A | 功能描述:數(shù)字電位計(jì) IC 256 TAP VOLATILE SPI FL RNG INC DCP 21X16 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 |
| ISL23415WFRUZ-TK | 功能描述:數(shù)字電位計(jì) IC 256 TAP VOLATILE SPI FL RNG INC DCP 21X16 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 |
| ISL23415WFUZ | 功能描述:數(shù)字電位計(jì) IC 256 TAP VOLATILE SPI DL FL RNG DCP 10LD 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 |
| ISL23415WFUZ-T7A | 功能描述:數(shù)字電位計(jì) IC 256 TAP VOLATILE SPI DL FL RNG DCP 10LD 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 |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。