參數(shù)資料
型號(hào)： MAX4554
廠商： Maxim Integrated Products, Inc.
英文描述： Force-Sense Switches
中文描述： 加載-感應(yīng)開關(guān)
文件頁(yè)數(shù)： 20/28頁(yè)
文件大小： 281K
代理商： MAX4554
M
Forc e-S ense S witc hes
20
______________________________________________________________________________________
Increasing V- has no effect on the logic-level thresh-
olds, but it does increase the drive to the internal P-
channel switches, reducing the overall switch
on-resistance. V- also sets the negative limit of the ana-
log signal voltage.
Bipolar-Supply Operation
The MAX4554/MAX4555/MAX4556 operate with bipolar
supplies between ±4.5V and ±18V. However, since all
factory characterization is done with ±15V supplies
(and +20V, -10V for MAX4554), operation at other sup-
plies is not guaranteed. The V+ and V- supplies need
not be symmetrical, but their sum cannot exceed the
absolute maximum rating of 44V (see Absolute Max-
imum Ratings). VL must not exceed V+.
Single-Supply Operation
The MAX4554/MAX4555/MAX4556 operate from a sin-
gle supply between +4.5V and +44V when V- is con-
nected to GND. All of the bipolar precautions must be
observed.
__________Applic ations Information
S witc hing 4-Wire
Forc e-S ense Circ uits
Figure 5 shows how to switch a single voltage or cur-
rent source between two loads using two MAX4555s. A
single CMOS inverter ensures that only one switch is on
at a time. On each MAX4555, switches 2 and 3 are the
high-current switches, so they should be used for force
circuits. By interchanging loads and sources, the circuit
can be reversed to switch two sources to a single load.
Additional MAX4555s and loads or sources can be
added to expand the circuit, but additional IN_ address
decoding must be incorporated.
NC3
GND
GND
LOAD1
LOAD2
NC1
FEEDBACK
SENSE
SENSE
FORCE
CMOS INVERTER
IN
FORCE
COM2
V-
COM1
COM4
COM3
IN2
IN1
IN4
IN3
VOLTAGE/CURRENT SOURCE
NC2
NC4
MAX4555
V+
VL
NC3
NC1
COM2
V-
COM1
COM4
COM3
IN2
IN1
IN4
IN3
NC2
NC4
MAX4555
V+
VL
LOGIC
LOAD
2
1
0
1
IN
V
Figure 5. Using the MAX4555 to Switch 4-Wire Force-Sense Circuits from One Source to Two Loads
相關(guān)PDF資料
PDF描述
MAX4554CPE Force-Sense Switches
MAX4554CSE Force-Sense Switches
MAX4554EPE Force-Sense Switches
MAX4554ESE Force-Sense Switches
MAX4555CPE Force-Sense Switches
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX4554C/D 功能描述:模擬開關(guān) IC RoHS:否 制造商:Texas Instruments 開關(guān)數(shù)量:2 開關(guān)配置:SPDT 開啟電阻（最大值）:0.1 Ohms 切換電壓（最大）: 開啟時(shí)間（最大值）: 關(guān)閉時(shí)間（最大值）: 工作電源電壓:2.7 V to 4.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:DSBGA-16
MAX4554CPE 功能描述:模擬開關(guān) IC RoHS:否 制造商:Texas Instruments 開關(guān)數(shù)量:2 開關(guān)配置:SPDT 開啟電阻（最大值）:0.1 Ohms 切換電壓（最大）: 開啟時(shí)間（最大值）: 關(guān)閉時(shí)間（最大值）: 工作電源電壓:2.7 V to 4.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:DSBGA-16
MAX4554CPE+ 功能描述:模擬開關(guān) IC RoHS:否 制造商:Texas Instruments 開關(guān)數(shù)量:2 開關(guān)配置:SPDT 開啟電阻（最大值）:0.1 Ohms 切換電壓（最大）: 開啟時(shí)間（最大值）: 關(guān)閉時(shí)間（最大值）: 工作電源電壓:2.7 V to 4.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:DSBGA-16
MAX4554CSE 功能描述:模擬開關(guān) IC RoHS:否 制造商:Texas Instruments 開關(guān)數(shù)量:2 開關(guān)配置:SPDT 開啟電阻（最大值）:0.1 Ohms 切換電壓（最大）: 開啟時(shí)間（最大值）: 關(guān)閉時(shí)間（最大值）: 工作電源電壓:2.7 V to 4.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:DSBGA-16
MAX4554CSE+ 功能描述:模擬開關(guān) IC Force-Sense Switch RoHS:否 制造商:Texas Instruments 開關(guān)數(shù)量:2 開關(guān)配置:SPDT 開啟電阻（最大值）:0.1 Ohms 切換電壓（最大）: 開啟時(shí)間（最大值）: 關(guān)閉時(shí)間（最大值）: 工作電源電壓:2.7 V to 4.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:DSBGA-16
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