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MAX14949 датащи(PDF) 4 Page - Maxim Integrated Products

номер детали MAX14949
подробное описание детали  High-Performance Transceiver Enables Flexible Designs
PDF  20 Pages
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производитель  MAXIM [Maxim Integrated Products]
домашняя страница  https://www.maximintegrated.com/en.html
Logo MAXIM - Maxim Integrated Products

MAX14949 датащи(HTML) 4 Page - Maxim Integrated Products

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DC Electrical Characteristics (continued)
(VDDA - VGNDA = 3.0V to 5.5V, VDDB - VGNDB = 4.5V to 5.5V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at
VDDA - VGNDA = 3.3V, VDDB - VGNDB = 5V, VGNDA = VGNDB, and TA = +25°C.) (Notes 2, 3)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
DRIVER
Differential-Driver Output
|VOD|
RL = 54Ω, TXD = high or low, DE = high,
Figure 1a
2
V
RL = 100Ω, TXD = high or low, DE = high,
Figure 1a
3
-7V ≤ VCM ≤+12V, Figure 1b
1.5
5
Change in Magnitude of
Differential-Driver Output Voltage
ΔVOD
RL = 100Ω or 54Ω, Figure 1b (Note 6)
0.2
V
Driver Common-Mode Output
Voltage
VOC
RL = 100Ω or 54Ω, Figure 1a
VDDB/2
3
V
Change in Magnitude of
Common-Mode Voltage
ΔVOC
RL = 100Ω or 54Ω, Figure 1a (Note 6)
0.2
V
Driver Short-Circuit Output
Current
IOSD
GNDB ≤ VOUT ≤ +12V, output low
(Note 7)
+250
mA
-7V ≤ VOUT ≤ VDDB, output high
(Note 7)
-250
Driver Short-Circuit Foldback
Output Current
IOSDF
(VDDB - 1V) ≤ VOUT ≤ +12V,
output low (Note 5, 7)
+20
mA
-7V ≤ VOUT ≤ +1V, output high
(Note 5, 7)
-20
RECEIVER
Input Current (A and B)
IA,B
DE = GNDA,
VDDB = GNDB or
+5.5V
VIN = +12V
+125
μA
VIN = -7V
-100
Receiver Differential-Threshold
Voltage
VTH
-7V ≤ VCM ≤ +12V
-200
-125
-50
mV
Receiver Input Hysteresis
ΔVTH
VCM = 0V
15
mV
Receiver Input Resistance
RIN
-7V ≤ VCM ≤ +12V, DE = low
96
kΩ
PROTECTION
Thermal-Shutdown Threshold
TSHDN
Temperature rising
+160
°C
Thermal-Shutdown Hysteresis
THYST
15
°C
ESD Protection
(A and B Pins to GNDB)
Human Body Model
±30
kV
IEC 61000-4-2 Air-Gap Discharge
±15
IEC 61000-4-2- Contact Discharge
±10
ESD Protection (All Other Pins)
Human Body Model
±4
kV
MAX14949
5kVRMS Isolated 500kbps Half-Duplex
RS-485/RS-422 Transceiver with ±30kV ESD
Protection and Integrated Transformer Driver
www.maximintegrated.com
Maxim Integrated │ 4



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