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LTM2887 Datasheet(PDF) 5 Page - Linear Technology

Part # LTM2887
Description  SPI/Digital or I2C 關Module Isolator with Dual Adjustable 5V Regulators
PDF  38 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTM2887 Datasheet(HTML) 5 Page - Linear Technology

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LTM2887
5
2887fb
For more information www.linear.com/LTM2887
ELECTRICAL CHARACTERISTICS
SYMBOL PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VHYS
Input Hysteresis
150
mV
VOH
Output High Voltage
DO1, DO2, SDO
ILOAD = –1mA, 1.62V ≤ VL < 3V
ILOAD = –4mA, 3V ≤ VL ≤ 5.5V
l
VL – 0.4
V
O1, SCK2, SDI2, CS2, ILOAD = –4mA
l
VL2 – 0.4
V
VOL
Output Low Voltage
DO1, DO2, SDO
ILOAD = 1mA, 1.62V ≤ VL < 3V
ILOAD = 4mA, 3V ≤ VL ≤ 5.5V
l
0.4
V
O1, SCK2, SDI2, CS2, ILOAD = 4mA
l
0.4
V
ISC
Short-Circuit Current
0V ≤ (DO1, DO2, SDO) ≤ VL
0V ≤ (O1, SCK2, SDI2, CS2) ≤ VL2
l
±60
±85
mA
mA
I2C
VIL
Low Level Input Voltage
SCL, SDA
SDA2
l
l
0.3 • VL
0.3 • VL2
V
V
VIH
High Level Input Voltage
SCL, SDA
SDA2
l
l
0.7 • VL
0.7 • VL2
V
V
IINL
Input Current
SCL, SDA = VL or 0V
SDA2 = VL2, SDA2 = VL2 = 0V
l
l
±1
±1
µA
µA
VHYS
Input Hysteresis
SCL, SDA
SDA2
0.05 • VL
0.05 • VL2
mV
mV
VOH
Output High Voltage
SCL2, ILOAD = –2mA
DO2, ILOAD = –2mA
l
VL2 – 0.4
VL – 0.4
V
V
VOL
Output Low Voltage
SDA, ILOAD = 3mA
DO2, ILOAD = 2mA
SCL2, ILOAD = 2mA
SDA2, No Load, SDA = 0V, 4.5V ≤ VL2 < 5.5V
SDA2, No Load, SDA = 0V, 3V < VL2 < 4.5V
l
l
l
l
l
0.3
0.4
0.4
0.4
0.45
0.55
V
V
V
V
V
CIN
Input Pin Capacitance
SCL, SDA, SDA2 (Note 2)
l
10
pF
CB
Bus Capacitive Load
SCL2, Standard Speed (Note 2)
SCL2, Fast Speed
SDA, SDA2, SR ≥ 1V/µs, Standard Speed (Note 2)
SDA, SDA2, SR ≥ 1V/µs, Fast Speed
l
l
l
l
400
200
400
200
pF
pF
pF
pF
Minimum Bus Slew Rate
SDA, SDA2
l
1
V/µs
ISC
Short-Circuit Current
SDA2 = 0, SDA = VL
0V ≤ SCL2 ≤ VL2
0V ≤ DO2 ≤ VL
SDA = 0, SDA2 = VL2
SDA = VL, SDA2 = 0
l
±30
±30
6
–1.8
100
mA
mA
mA
mA
mA
ESD (HBM) (Note 2)
Isolation Boundary
(VCC2, VL2, GND2) to (VCC, VL, GND)
±10
kV
The l denotes the specifications which apply over the specified operating
temperature range, otherwise specifications are at TA = 25°C. LTM2887-3 VCC = 3.3V, LTM2887-5 VCC = 5V, VL = 3.3V, and GND =
GND2 = 0V, ON = VL unless otherwise noted. Specifications apply to all options unless otherwise noted.



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