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LTM2882 Datasheet(PDF) 3 Page - Linear Technology

Part # LTM2882
Description  Dual Isolated RS232 關Module Transceiver Power
PDF  16 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTM2882 Datasheet(HTML) 3 Page - Linear Technology

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LTM2882
3
2882p
ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. LTM2882-3 VCC = 3.3V, LTM2882-5 VCC = 5.0V, VL = VCC, and GND =
GND2 = 0V, ON = VL unless otherwise noted.
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Supplies
VCC
Input Supply Range
LTM2882-3
l
3.0
3.3
3.6
V
LTM2882-5
l
4.5
5.0
5.5
V
VL
Logic Supply Range
l
1.62
5.5
V
ICC
Input Supply Current
ON = 0V
l
010
μA
LTM2882-3, No Load
l
24
30
mA
LTM2882-5, No Load
l
17
21
mA
VCC2
Regulated Output Voltage, Loaded
LTM2882-3 DE = 0V, ILOAD = 100mA
l
4.7
5.0
V
LTM2882-5 DE = 0V, ILOAD = 150mA
l
4.7
5.0
V
VCC2(NOLOAD) Regulated Output Voltage, No Load
DE = 0, No Load
4.8
5.0
5.35
V
Efficiency
ICC2 = 100mA, LTM2882-5 (Note 2)
65
%
ICC2
Output Supply Short-Circuit Current
l
250
mA
Driver
VOLD
Driver Output Voltage Low
RL = 3kΩ
l
–5
–5.7
V
VOHD
Driver Output Voltage High
RL = 3kΩ
l
5
6.2
V
IOSD
Driver Short-Circuit Current
VT1OUT, VT2OUT = 0V, VCC2 = 5.5V
l
±35
±70
mA
IOZD
Driver Three-State (High Impedance)
Output Current
DE = 0V, VT1OUT, VT2OUT = ±15V
l
±0.1
±10
μA
Receiver
VIR
Receiver Input Threshold
Input Low
l
0.8
1.3
V
Input High
l
1.7
2.5
V
VHYSR
Receiver Input Hysteresis
l
0.1
0.4
1.0
V
RIN
Receiver Input Resistance
–15V ≤ (VR1IN, VR2IN) ≤ 15V
l
35
7
kΩ
Logic
VITH
Logic Input Threshold Voltage
ON, T1IN, T2IN, DIN = 1.62V ≤ VL < 2.35V
l
0.25•VL
0.75•VL
V
ON, T1IN, T2IN, DIN = 2.35V ≤ VL ≤ 5.5V
l
0.4
0.67•VL
V
DE
l
0.4
0.67•VCC2
V
IINL
Logic Input Current
l
±1
μA
VHYS
Logic Input Hysteresis
T1IN, T2IN, DIN (Note 2)
150
mV
VOH
Logic Output High Voltage
R1OUT, R2OUT
ILOAD = –1mA (Sourcing), 1.62V ≤ VL < 3.0V
ILOAD = –4mA (Sourcing), 3.0V ≤ VL ≤ 5.5V
l
l
VL – 0.4
VL – 0.4
V
V
DOUT, ILOAD = –4mA (Sourcing)
l VCC2 – 0.4
V
VOL
Logic Output Low Voltage
R1OUT, R2OUT
ILOAD = 1mA (Sinking), 1.62V ≤ VL < 3.0V
ILOAD = 4mA (Sinking), 3.0V ≤ VL ≤ 5.5V
l
l
0.4
0.4
V
V
DOUT, ILOAD = 4mA (Sinking)
l
0.4
V
ESD (HBM) (Note 2)
RS232 Driver and Receiver Protection
(T1OUT, T2OUT, R1IN, R2IN) to (VCC2, GND2)
±10
kV
(T1OUT, T2OUT, R1IN, R2IN) to (VCC, VL, GND)
±10
kV
Isolation Boundary
(VCC2, GND2) to (VCC, VL, GND)
±10
kV



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