LTC1688/LTC1689
ABSOLUTE
(Note 1)
AXI U
RATI GS
PACKAGE/ORDER I FOR ATIO
TOP VIEW
DI1 1
DO1A 2
DO1B 3
EN (EN12*) 4
DO2B 5
DO2A 6
DI2 7
GND 8
16 V
DD
15 DI4
14 DO4A
13 DO4B
12 ENB (EN34*)
11 DO3B
10 DO3A
9
DI3
Supply Voltage (V
DD
) ................................................ 7V
Enable Input Voltages ................. – 0.5V to (V
DD
+ 0.5V)
Enable Input Currents ..................... – 100mA to 100mA
Driver Input Voltages .................. – 0.5V to (V
DD
+ 0.5V)
Driver Output Voltages ................. (– 12V + V
DD
) to 12V
Driver Input Currents ...................... – 100mA to 100mA
Short-Circuit Duration (V
OUT
: – 7V to 10V) ...... Indefinite
Operating Temperature Range
LTC1688C/LTC1689C ............................. 0°C to 70°C
LTC1688I/LTC1689I .......................... – 40°C to 85°C
Storage Temperature Range ................ – 65°C to 150°C
Lead Temperature (Soldering, 10 sec)................. 300°C
ORDER PART
NUMBER
LTC1688CS
LTC1689CS
LTC1688IS
LTC1689IS
S PACKAGE
16-LEAD PLASTIC SO
*LTC1689 ONLY
T
JMAX
= 150°C,
θ
JA
= 90°C/ W
Consult factory for parts specified with wider operating temperature ranges.
DC ELECTRICAL CHARACTERISTICS
temperature range, otherwise specifications are at T
A
= 25°C.
PARAMETER
Differential Driver Output (Unloaded)
Differential Driver Output (With Load)
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
Three-State (High Impedance)
Output Current
Supply Current of Entire Device
Driver Short-Circuit Current, V
OUT
= HIGH
Driver Short-Circuit Current, V
OUT
= LOW
Differential Driver Output (Unloaded)
Differential Driver Output (With Load)
Change in Magnitude of Driver Differential
Output Voltage for Complementary
Output States
Driver Common Mode Output Voltage
SYMBOL
V
OD1
V
OD2
∆V
OD
CONDITIONS
I
OUT
= 0
V
DD
= 5V, Per Driver, T
A
= 25
°
C, Unless Otherwise Noted (Note 2)
The
q
denotes the specifications which apply over the full operating
MIN
q
q
q
q
TYP
MAX
V
DD
UNITS
V
V
V
V
R = 50Ω (RS422)
R = 25Ω (RS485), Figure 1
R = 25Ω or 50Ω, Figure 1
2
1.5
3.0
0.2
V
OC
∆V
OC
R = 25Ω or 50Ω, Figure 1
R = 25Ω or 50Ω, Figure 1
q
q
2
3
0.2
V
IH
V
IL
I
IN1
I
OZ
I
DD
I
OSD1
I
OSD2
V
OD1
V
OD2
∆V
OD
EN, ENB, EN12, EN34, DI
EN, ENB, EN12, EN34, DI
EN, ENB, EN12, EN34, DI
V
OUT
= – 7V to 12V
No Load, Digital Input Pins = 0V or V
DD
V
OUT
= – 7V to 10V
V
OUT
= – 7V to 10V
I
OUT
= 0
R = 50Ω (RS422)
R = 25Ω (RS485), Figure 1
R = 25Ω or 50Ω, Figure 1
q
q
q
q
q
q
q
2
0.8
±1
±2
9
±200
18
±
20
±
20
V
DD
= 3V, Per Driver, T
A
= 25
°
C, Unless Otherwise Noted (Note 2)
q
V
DD
1.5
0.65
0.1
2.0
q
V
OC
R = 25Ω or 50Ω, Figure 1
1.3
16889fa
2
U
V
V
V
V
µA
µA
mA
mA
mA
V
V
V
V
V
W
U
U
W W
W
LINEAR_DIMENSIONS [ LINEAR DIMENSIONS SEMICONDUCTOR ]
