LTC1685I Ver la hoja de datos (PDF) - Linear Technology
Número de pieza
componentes Descripción
Lista de partido
LTC1685I Datasheet PDF : 12 Pages
| |||
LTC1685
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
Short-Circuit Duration (Driver VOUT: – 7V to 10V,
Receiver VOUT: 0V to VDD) ............................... Indefinite
Operating Temperature Range
LTC1685C ............................................... 0°C to 70°C
LTC1685I ............................................. –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
RO 1
R
RE 2
DE 3
DI 4
D
8 VDD
7B
6A
5 GND
S8 PACKAGE
8-LEAD PLASTIC SO
TJMAX = 125°C, θJA = 150°C/ W
Consult factory for Military grade parts.
ORDER PART
NUMBER
LTC1685CS8
LTC1685IS8
S8 PART MARKING
1685
1685I
DC ELECTRICAL CHARACTERISTICS The q denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VDD = 5V ± 5%, unless otherwise noted. (Notes 2, 3)
SYMBOL PARAMETER
CONDITIONS
VOD1
Differential Driver Output (Unloaded)
IOUT = 0
q
VOD2
Differential Driver Output (With Load)
R = 50Ω (RS422)
R = 27Ω (RS485), Figure 1
q
∆VOD
Change in Magnitude of Driver Differential R = 27Ω or 50Ω, Figure 1
q
Output Voltage for Complementary
Output States
VOC
Driver Common Mode Output Voltage
R = 27Ω or 50Ω, VDD = 5V, Figure 1
q
∆VOC Change in Magnitude of Driver Common R = 27Ω or 50Ω, Figure 1
q
Mode Output Voltage for Complementary
Output States
VIH
Input High Voltage
VIL
Input Low Voltage
IIN1
Input Current
IIN2
Input Current (A, B)
VTH
Differential Input Threshold Voltage
for Receiver
DE, DI, RE
q
DE, DI, RE
q
DE, DI, RE
q
VA, VB = 12V, DE = 0, VDD = 0V or 5.25V
q
VA, VB = – 7V, DE = 0, VDD = 0V or 5.25V
q
– 7V ≤ VCM ≤ 12V
q
∆VTH
Receiver Input Hysteresis
VCM = 0V
VOH
Receiver Output High Voltage
IOUT = – 4mA, VID = 300mV
q
VOL
Receiver Output Low Voltage
IOUT = 4mA, VID = – 300mV
q
IOZR
Three-State (High Impedance) Output
0.4V ≤ VOUT ≤ 2.4V
q
Current at Receiver
IDD
Supply Current
No Load, Pins 2, 3, 4 = 0V or VDD
q
IOSD1
Driver Short-Circuit Current, VOUT = HIGH VOUT = – 7V or 10V (Note 5)
q
MIN TYP MAX
VDD
2
1.5
VDD
0.2
2
3
0.2
2
0.8
–1
1
500
– 500
– 0.3
0.3
25
3.5
4.8
0.4
–1
1
7
12
20
UNITS
V
V
V
V
V
V
V
V
µA
µA
µA
V
mV
V
V
µA
mA
mA
2
Share Link: 