LTC1686 Просмотр технического описания (PDF) - Linear Technology
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LTC1686 Datasheet PDF : 12 Pages
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LTC1686/LTC1687
ABSOLUTE AXI U RATI GS
(Note 1)
Supply Voltage (VDD) .............................................. 10V
Control Input Currents .................... – 100mA to 100mA
Control Input Voltages .................. – 0.5V to VDD + 0.5V
Driver Input Voltages .................... – 0.5V to VDD + 0.5V
Driver Output Voltages ................................. + 12V/– 7V
Receiver Input Voltages ................................ + 12V/– 7V
Receiver Output Voltages ............. – 0.5V to VDD + 0.5V
Receiver Input Differential ...................................... 10V
Driver Short-Circuit Duration
(VOUT: – 7V to 10V) ..................................... Indefinite
Receiver Short-Circuit Duration
(VOUT: 0V to VDD) ........................................ Indefinite
Operating Temperature Range
LTC1686C/LTC1687C ............................. 0°C to 70°C
LTC1686I/LTC1687I .......................... – 40°C to 85°C
Storage Temperature Range ................ – 65°C to 150°C
Lead Temperature (Soldering, 10 sec)................. 300°C
PACKAGE/ORDER I FOR ATIO
TOP VIEW
ORDER PART
NUMBER
VDD 1
R2
8A
R
7B
D3
D
GND 4
6Z
5Y
S8 PACKAGE
8-LEAD PLASTIC SO
TJMAX = 125°C, θJA = 150°C/ W
LTC1686CS8
LTC1686IS8
S8 PART MARKING
1686
1686I
Consult factory for Industrial and Military grade parts.
TOP VIEW
NC 1
R2
R
RE 3
DE 4
D5
D
GND 6
GND 7
14 VDD
13 NC
12 A
11 B
10 Z
9Y
8 NC
S PACKAGE
14-LEAD PLASTIC SO
TJMAX = 125°C, θJA = 90°C/ W
ORDER PART
NUMBER
LTC1687CS
LTC1687IS
DC ELECTRICAL CHARACTERISTICS VDD = 5V ± 5% unless otherwise noted (Notes 2, 3).
SYMBOL
VOD1
VOD2
PARAMETER
Differential Driver Output (Unloaded)
Differential Driver Output (With Load)
∆VOD
VOC
∆VOC
VIH
VIL
IIN1
IIN2
Change in Magnitude of Driver Differential
Output Voltage for Complementary
Output States
Driver Common Mode Output Voltage
Change in Magnitude of Driver Common
Mode Output Voltage for Complementary
Output States
Input High Voltage
Input Low Voltage
Input Current
Input Current (A, B)
VTH
Differential Input Threshold Voltage
for Receiver
∆VTH
VOH
Receiver Input Hysteresis
Receiver Output High Voltage
CONDITIONS
IOUT = 0
R = 50Ω (RS422)
R = 27Ω (RS485), Figure 1
R = 27Ω or 50Ω, Figure 1
R = 27Ω or 50Ω, VDD = 5V, Figure 1
R = 27Ω or 50Ω, Figure 1
D, DE, RE
D, DE, RE
D, DE, RE
VA, VB = 12V, VDD = 0V or 5.25V
VA, VB = – 7V, VDD = 0V or 5.25V
– 7V ≤ VCM ≤ 12V
VCM = 0V
IOUT = – 4mA, VID = 300mV
MIN TYP MAX
q
VDD
2.0
q
1.5
VDD
q
0.2
q
2
3
q
0.2
q
2
q
0.8
q
–1
1
q
500
q – 500
q – 0.3
0.3
25
q
3.5
4.8
2
UNITS
V
V
V
V
V
V
V
V
µA
µA
µA
V
mV
V
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