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MAX3443ECPA 数据手册 - Maxim Integrated（美信）
制造商:
Maxim Integrated（美信）
分类:
接口芯片
封装:
PDIP-8
描述:
【 60V故障保护， 10Mbps的，故障保护的RS - 485收发器【 15kV ESD保护 【60V Fault-Protected, 10Mbps, Fail-Safe RS-485 Transceiver with 【15kV ESD Protection
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MAX3443ECPA数据手册
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(V
CC
= +4.75V to +5.25V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at V
CC
= +5V and T
A
= +25°C.)
(V
CC
= +4.75V to +5.25V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at V
CC
= +5V and T
A
= +25°C.)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Overvoltage Protection A, B; R
SOURCE
= 0, R
L
= 54Ω ±60 V
ESD Protection A, B Human Body Model ±15 kV
FAULT DETECTION
Receiver Differential Threshold F
DIPH
V
CM
= 0V, high limit 270 450 mV
Receiver Differential Threshold F
DIPL
V
CM
= 0V, low limit -450 -270 mV
Fault-Detection Common-Mode
Input Voltage Positive
12 V
Fault-Detection Common-Mode
Input Voltage Negative
-7 V
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
RECEIVER LOGIC
Output High Voltage V
OH
Figure 2, I
OH
= -1.6mA
V
CC
–
0.6
V
Output Low Voltage V
OL
Figure 2, I
OL
= 1mA 0.4 V
Three-State Output Current at
Receiver
I
OZR
0V ≤ V
A, B
≤ V
CC
±1 µA
Receiver Input Resistance R
IN
-7V ≤ V
CM
≤ +12V 48 kΩ
Receiver Output Short-Circuit
Current
I
OSR
0V ≤ V
RO
≤ V
CC
±95 mA
CONTROL
Control Input High Voltage V
CIH
DE, DE, RE, DE/RE 2 V
Input Current Latch During First
Rising Edge
I
IN
DE, DE/RE, RE 90 µA
SUPPLY CURRENT
Normal Operation I
Q
No load,
DI = V
CC
or GND
MAX3440E (DE/RE = V
CC
),
MAX3442E (DE = V
CC
,
RE = GND),
MAX3444E (DE = RE = GND)
30
mA
MAX3441E (DE/RE = V
CC
),
MAX3443E (DE = V
CC
,
RE = GND)
10
Supply Current in Shutdown Mode
I
SHDN
DE = GND, RE = V
CC
(MAX3442E/
MAX3443E)
20
µA
DE = GND, RE = V
CC
, T
A
= +25°C
(MAX3442E/MAX3443E)
10
DE = RE = V
CC
(MAX3444E) 100
DE = RE = V
CC
, T
A
= +25°C (MAX3444E) 10
Supply Current with Output Shorted
to ±60V
I
SHRT
DE = GND, RE = GND, no load
output in three-state (MAX3443E)
±15 mA
www.maximintegrated.com
Maxim Integrated
│
3
MAX3440E–MAX3444E ±15kV ESD-Protected, ±60V Fault-Protected,
10Mbps, Fail-Safe RS-485/J1708 Transceivers
Protection Specications
DC Electrical Characteristics (continued)
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