參數(shù)資料
型號(hào)： DS1482
英文描述： 1-Wire Level Shifter and Line Driver with Load Sensor
中文描述： 1-Wire電平轉(zhuǎn)換器和線驅(qū)動(dòng)器，帶有負(fù)載檢測
文件頁數(shù)： 3/7頁
文件大小： 215K
代理商： DS1482
DS1482
3 of 7
Figure 2. Typical Operating Circuit
(21)
V
CCQ
SH7622
μC
(164)
TxD0
(171)
RxD0
(32)
PTA0
(31)
PTA1
(178)
IRQ7
V
CC
PCTLZ
V
CCQ
DS1482
TXD
RXD
SPU
START
DONE
I/O
GND
IRLMS6702
RS
V
CC
= 5V
1-Wire
NETWORK
V
CCQ
= 3.3V
Selecting RS
Assuming that the series resistance of the FET in
on-condition can be neglected, the value of RS is
limited as follows:
RSmax = 0.0015 x VCCmin/I(standby,max)
RSmin = 0.01 x VCCmax/I(active,min)
Example
:
VCCmin = 4.5V, VCCmax = 5.5V
I(standby,max) = 0.15mA
I(active,min) = 12mA
RSmax = 45 , RSmin = 4.58
To maximize available power on the 1-Wire line,
RS should be close to the lowest permissible
value, in this example 5.1 ±5%. The effect of the
on-chip pullup resistor is negligible.
Figure 3. DS1482 Application Signals, Normal Communication
TXD
SPU, START, DONE ALL LOW
I/O
RXD
H
L
H
L
H
L
Figure 4. DS1482 Application Signals, Strong Pullup Case
TXD
SPU
RXD
I/O
START
CURRENT
t
CF
1
DONE
2
3
4
H
L
H
L
H
L
PCTLZ
H
L
H
L
H
L
H
L
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
DS1482S 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:1-Wire Level Shifter and Line Driver with Load Sensor
DS1482S/R 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:1-Wire Level Shifter and Line Driver with Load Sensor
DS1482S/T 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:1-Wire Level Shifter and Line Driver with Load Sensor
DS1482S/T&R 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:1-Wire Level Shifter and Line Driver with Load Sensor
DS1482S+ 功能描述:IC LEVEL SHIFT 1-WIRE 16-SOIC RoHS:是 類別:集成電路 (IC) >> 接口 - 驅(qū)動(dòng)器，接收器，收發(fā)器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:25 系列:- 類型:收發(fā)器 驅(qū)動(dòng)器/接收器數(shù):2/2 規(guī)程:RS232 電源電壓:4.5 V ~ 5.5 V 安裝類型:通孔 封裝/外殼:16-DIP（0.300"，7.62mm） 供應(yīng)商設(shè)備封裝:16-PDIP 包裝:管件
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