LTC1386
3.3V Low Power
EIA/TIA562 Transceiver
FEATURES
DESCRIPTIO
Operates from a Single 3.3V Supply The LTC 1386 is an ultra-low power 2-driver/2-re-
Low Supply Current: I = 200A ceiver EIA/TIA562 transceiver that operates from a
CC
ESD Protection Over 10kV single 3.3V supply. The charge pump requires only four
Available in 16-Pin SOIC Narrow Package space-saving 0.1F capacitors. The supply current
Uses Small Capacitors: 0.1F (I ) of the transceiver is only 200A with driver out-
CC
Operates to 120kBaud puts unloaded.
Output Overvoltage Does Not Force Current
The LTC1386 is fully compliant with all data rate and
Back into Supplies
overvoltage EIA/TIA562 specifications. The transceiver
EIA/TIA562 I/O Lines Can Be Forced to 25V
can operate up to 120kbaud with a 1000pF, 3k load.
Without Damage
Both driver outputs and receiver inputs can be forced to
Pin Compatible with LT1181A
25V without damage and can survive multiple 10kV
ESD strikes.
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APPLICATIO S
Notebook Computers
Palmtop Computers , LTC and LT are registered trademarks of Linear Technology Corporation.
TYPICAL APPLICATIO
Quiescent Supply Current vs Temperature
600
1 16
TEST CONDITION: V = 3.3V
V = 3.3V CC
CC
0.1F
3 2
500
0.1F
LTC1386
4 6
400
0.1F
0.1F
5
V
CC QUIESCENT
300k CURRENT
300
11 14
LOGIC INPUT 562 OUTPUT
V
CC
200
300k
10 7
LOGIC INPUT 562 OUTPUT
100
12 13
LOGIC OUTPUT 562 INPUT
5k
0
20 0 20 40 60 80
TEMPERATURE (C)
9 8
LOGIC OUTPUT 562 INPUT
LTC1386 TA02
5k
15
LTC1386 TA01
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QUIESCENT CURRENT (A)
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ULTC1386
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ABSOLUTE AXI U RATI GS PACKAGE/ORDER I FOR ATIO
Supply Voltage (V ) ................................................ 5V
CC
ORDER PART
Input Voltage
TOP VIEW
NUMBER
Driver ....................................... 0.3V to V + 0.3V
CC
+
C1 1 16 V
CC
Receiver ............................................... 25V to 25V
+
V 2 15 GND
LTC1386CS
Digital Input ............................... 0.3V to V + 0.3V
CC
C1 3 14 TR1 OUT
LTC1386IS
Output Voltage
+
C2 4 13 RX1 IN
Driver .................................................... 25V to 25V
C2 5 12 RX1 OUT
Receiver .................................... 0.3V to V + 0.3V
CC V 6 11 TR1 IN
Short-Circuit Duration
TR2 OUT 7 10 TR2 IN
+
V ................................................................... 30 sec RX2 IN 8 9 RX2 OUT
V ................................................................... 30 sec
S PACKAGE
16-LEAD PLASTIC SO
Driver Output .............................................. Indefinite
Receiver Output .......................................... Indefinite
T = 125C, = 95C/W
JMAX JA
Operating Temperature Range
LTC1386C ............................................... 0C to 70C
LTC1386I............................................ 40C to 85C
Storage Temperature Range ................ 65C to 150C
Consult LTC Marketing for parts specified with wider operating temperature
ranges.
Lead Temperature (Soldering, 10 sec)................. 300C
DC ELECTRICAL CHARACTERISTICS
The denotes specifications which apply over the full operating
temperature range. V = 3.3V, C1 = C2 = C3 = C4 = 0.1F, unless otherwise noted.
CC
PARAMETER CONDITIONS MIN TYP MAX UNITS
Any Driver
Output Voltage Swing 3k to GND Positive 3.7 4.5 V
Negative 3.7 4.5 V
Logic Input Voltage Level Input Low Level (V = High) 1.4 0.8 V
OUT
Input High Level (V = Low) 2.0 1.4 V
OUT
Logic Input Current V = V 5 A
IN CC
V = 0V 20 40 A
IN
Output Short-Circuit Current V = 0V 9 10 mA
OUT
Any Receiver
Input Voltage Thresholds Input Low Threshold 0.8 1.3 V
Input High Threshold 1.7 2.4 V
Hysteresis 0.1 0.4 1 V
Input Resistance 10V V 10V 3 5 7 k
IN
Output Voltage Output Low, I = 1.6mA (V = 3.3V) 0.2 0.4 V
OUT CC
Output High, I = 160A (V = 3.3V) 3.0 3.2 V
OUT CC
Output Short-Circuit Current Sinking Current, V = V 5 20 mA
OUT CC
Sourcing Current, V = GND 2 7 mA
OUT
Power Supply Generator
+
V Output Voltage I = 0mA 5.7 V
OUT
I = 5mA 5.5 V
OUT
V Output Voltage I = 0mA 5.3 V
OUT
I = 5mA 5.0 V
OUT
Power Supply
V Supply Current No Load (Note 2), 0C to 70C 0.2 0.5 mA
CC
No Load (Note 2), 40C to 85C 0.35 1.0 mA
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