LTM2889
Isolated CAN FD µModule
Transceiver and Power
FEATURES
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DESCRIPTION
The
LTM
®
2889
is a complete galvanically-isolated Con-
troller Area Network (CAN) µModule
®
(micromodule)
transceiver. No external components are required – a
single supply powers both sides of the interface through an
integrated, isolated DC/DC converter. Separate versions are
available for 3.3V and 5V power supplies. The dual voltage
CAN transceiver and the adjustable regulator allow 3.3V
or 5V isolated power with either the 3.3V or 5V version.
Coupled inductors and an isolation power transformer
provide 2500V
RMS
of isolation between the line transceiver
and the logic interface. This device is ideal for systems
where the ground loop is broken, allowing for large common
mode voltage ranges. Communication remains uninter-
rupted for common mode transients greater than 30kV/μs.
Supports up to 4Mbps CAN with Flexible Data Rate
(CAN FD). A logic supply pin allows easy interfacing with
different logic levels from 1.62V to 5.5V, independent of
the main supply.
Enhanced ESD protection allows this part to withstand up
to ±25kV Human Body Model (HBM) on the transceiver
interface pins and ±10kV HBM across the isolation barrier
without latchup or damage.
L,
LT, LTC, LTM, Linear Technology, µModule and the Linear logo are registered trademarks of
Analog Devices, Inc. All other trademarks are the property of their respective owners.
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Isolated 4Mbps CAN FD Transceiver
2500V
RMS
for 1 Minute Per UL1577
Isolated DC Power: 5V (Adjustable to 3.3V)
Up to 150mA Available Isolated Power Output
3.3V or 5V Input Supply Voltage Options
UL-CSA Recognized
File #E151738
No External Components Required
High Bus Fault Voltage Tolerance: ±60V
Low Power OFF Mode: <1µA Typical
High Common Mode Transient Immunity: 30kV/µs
Variable Slew Rate Driver with Active Symmetry
Control and SPLIT Pin for Low EME
Fully ISO 11898-2 and CAN FD Compliant
Ideal Passive Behavior to CAN Bus with Supply Off
Transmit Data (TXD) Dominant Timeout Function
High ESD: ±25kV CANH, CANL to GND2 and V
CC2
;
±10kV Across Isolation Barrier
Ambient Operation from –40°C to 125°C
Low Profile 15mm × 11.25mm BGA Package
APPLICATIONS
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Isolated CAN Bus Interface
Industrial Networks
DeviceNet Applications
TYPICAL APPLICATION
Isolated Powered CAN Transceiver
1.62V TO 5.5V
V
DD
3.3V (LTM2889-3) OR 5V (LTM2889-5)
V
L
PV
CC
V
CC
ISOLATION BARRIER
RXD
CAN
CONTROLLER
RE
ON
TXD
S
GND
GND
V
CC2
PWR
5V OUTPUT
(ADJUSTABLE)
AVAILABLE CURRENT:
150mA (LTM2889-5)
100mA (LTM2889-3)
ADJ
LTM2889 Operating at 1Mbps with
45 kV/µs Common Mode Transients
Across the Isolation Barrier
2V/DIV
2V/DIV
TXD
RXD
LTM2889
CANH
SPLIT*
CANL
RS
GND2
60
60
2889 TA01
MULTIPLE SWEEPS
OF COMMON MODE
TRANSIENTS ACROSS
ISOLATION BARRIER
500V/DIV
50ns/DIV
2889 TA01a
*USE OF SPLIT PIN IS OPTIONAL
2889fa
For more information
www.linear.com/LTM2889
1
LTM2889
ABSOLUTE MAXIMUM RATINGS
(Note 1)
PIN CONFIGURATION
TOP VIEW
1
RE
A
B
C
D
E
F
G
H
J
K
L
CANL SPLIT CANH GND2 RS
ADJ
V
CC2
GND2
DNC
GND2
GND
2
3
4
S
5
ON
6
V
L
7
8
RXD TXD
V
CC
PV
CC
V
CC
to GND .................................................. –0.3V to 6V
PV
CC
to GND ................................................ –0.3V to 6V
V
L
to GND .................................................... –0.3V to 6V
V
CC2
to GND2 ............................................... –0.3V to 6V
Signal Voltages (ON, S,
RE,
RXD, TXD)
to GND ................................................–0.3V to V
L
+0.3V
Interface I/O (CANH, CANL, SPLIT) to GND2 ..........±60V
Interface I/O to Interface I/O ................................. ±120V
V
CC2
, ADJ, RS to GND2................................ –0.3V to 6V
Operating Temperature Range (Note 4)
LTM2889C ............................................... 0°C to 70°C
LTM2889I ............................................–40°C to 85°C
LTM2889H ......................................... –40°C to 125°C
Maximum Internal Operating Temperature............ 125°C
Storage Temperature Range .................. –55°C to 125°C
Peak Reflow Temperature (Soldering, 10 sec) ....... 245°C
BGA PACKAGE
32-PIN (15mm
×
11.25mm
×
3.42mm)
T
JMAX
= 125°C,
θ
JA
= 32.2°C/W,
θ
JCTOP
= 27.2°C/W
θ
JCBOTTOM
= 20.9°C/W,
θ
JB
=26.4°C/W, Weight = 1.1g
PRODUCT SELECTION GUIDE
LTM2889
I
Y
–3
#PBF
LEAD FREE DESIGNATOR
PBF = Lead Free
INPUT VOLTAGE RANGE
3 = 3V to 3.6V
5 = 4.5V to 5.5V
PACKAGE TYPE
Y = Ball Grid Array (BGA)
TEMPERATURE GRADE
C = Commercial Temperature Range (0°C to 70°C)
I = Industrial Temperature Range (–40°C to 85°C)
H = Automotive Temperature Range (–40°C to 125°C)
PRODUCT PART NUMBER
2889fa
2
For more information
www.linear.com/LTM2889
LTM2889
ORDER INFORMATION
PART NUMBER
LTM2889CY-3#PBF
LTM2889IY-3#PBF
LTM2889HY-3#PBF
LTM2889CY-5#PBF
LTM2889IY-5#PBF
LTM2889HY-5#PBF
• Device temperature grade is indicated by a label on the shipping
container.
• Pad or ball finish code is per IPC/JEDEC J-STD-609.
• Terminal Finish Part Marking:
www.linear.com/leadfree
• This product is not recommended for second side reflow. For more
information, go to
www.linear.com/BGA-assy
SAC305 (RoHS)
LTM2889Y-5
LTM2889Y-3
e1
32-Lead
BGA
3
PAD OR BALL FINISH
http://www.linear.com/product/LTM2889#orderinfo
PART MARKING
DEVICE
FINISH CODE
PACKAGE
TYPE
MSL INPUT VOLTAGE
RATING RANGE
3V to 3.6V
3V to 3.6V
3V to 3.6V
4.5V to 5.5V
4.5V to 5.5V
4.5V to 5.5V
TEMPERATURE
RANGE
0°C to 70°C
–40°C to 85°C
–40°C to 125°C
0°C to 70°C
–40°C to 85°C
–40°C to 125°C
• Recommended BGA PCB Assembly and Manufacturing Procedures:
www.linear.com/BGA-assy
• BGA Package and Tray Drawings:
www.linear.com/packaging
• This product is moisture sensitive. For more information, go to:
www.linear.com/BGA-assy
The
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denotes specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. Unless otherwise noted, the following conditions apply:
PV
CC
= V
CC
= 3.3V for the LTM2889-3, PV
CC
= V
CC
= 5V for the LTM2889-5, V
L
= 3.3V, GND = GND2 = S =
RE
= RS = 0V, ON = V
L
.
Figure 10 applies for V
CC2
= 3.3V; otherwise ADJ is floating. Figure 1 applies with R
L
= 60Ω and dominant mode measurements are
taken prior to TXD dominant timeout (t < t
TOTXD
). (Note 2)
SYMBOL
V
CC
I
CC
PV
CC
PI
CC
PARAMETER
Supply Voltage
Supply Current
Supply Voltage, Isolated Power Converter
Supply Current, Isolated Power Converter,
(V
CC2
External Load Current I
LOAD
= 0)
OFF: ON = 0V
Recessive: ON = V
L
,
TXD = V
L
and/or S = V
L
Dominant: ON = V
L
,
TXD = S = 0
V
L
I
L
Logic Supply Voltage
Logic Supply Current
OFF: ON = 0V, TXD = V
L
Recessive: ON = V
L
, TXD = V
L
Dominant: ON = V
L
, TXD = S = 0V
V
CC2
Regulated V
CC2
Output Voltage to GND2
No Load, TXD = V
L
I
LOAD
= 100mA, TXD = V
L
I
LOAD
= 150mA, TXD = V
L
V
CC2-3.3V
Regulated V
CC2
Output Voltage to GND2, 3.3V
Output
V
CC2
Short Circuit Current
No Load, (Fig. 10)
I
LOAD
= 100mA, (Fig. 10)
I
LOAD
= 150mA, (Fig. 10)
V
CC2
= 0V, TXD = V
L
LTM2889-3
LTM2889-5
LTM2889-3
LTM2889-5
LTM2889-3
LTM2889-5
LTM2889-3
LTM2889-5
OFF: ON = 0V
ON = V
L
LTM2889-3
LTM2889-5
CONDITIONS
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ELECTRICAL CHARACTERISTICS
MIN
3.0
TYP
MAX
5.5
UNITS
V
µA
mA
V
V
µA
mA
mA
mA
mA
V
µA
µA
µA
V
V
V
V
V
V
mA
2889fa
Power Supplies
0
3.1
3.0
4.5
3.3
5.0
0
34
32
140
94
1.62
3.3
0
0
6
4.75
4.75
4.75
3.1
3.0
3.0
5.0
5.0
5.0
3.3
3.3
3.3
200
10
5
3.6
5.5
10
60
50
225
130
5.5
10
10
50
5.25
5.25
5.25
3.5
3.5
3.5
For more information
www.linear.com/LTM2889
3
LTM2889
The
l
denotes specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. Unless otherwise noted, the following conditions apply:
PV
CC
= V
CC
= 3.3V for the LTM2889-3, PV
CC
= V
CC
= 5V for the LTM2889-5, V
L
= 3.3V, GND = GND2 = S =
RE
= RS = 0V, ON = V
L
.
Figure 10 applies for V
CC2
= 3.3V; otherwise ADJ is floating. Figure 1 applies with R
L
= 60Ω and dominant mode measurements are
taken prior to TXD dominant timeout (t < t
TOTXD
). (Note 2)
SYMBOL
V
IH
V
IL
I
IH
I
IL
V
IH
V
IL
I
IH
I
IL
C
IN
I
OH
I
OL
PARAMETER
HIGH-level Input Voltage
LOW-level Input Voltage
HIGH-level Input Current
LOW-level Input Current
HIGH-level Input Voltage
LOW-level Input Voltage
HIGH-level Input Current
LOW-level Input Current
Input Capacitance
HIGH-level Output Current
LOW-level Output Current
CONDITIONS
V
L
≥ 2.35V
1.62V ≤ V
L
< 2.35V
V
L
≥ 2.35V
1.62V ≤ V
L
< 2.35V
ON = S =
RE
= V
L
ON = S =
RE
= 0V
V
L
≥ 2.35V
1.62V ≤ V
L
< 2.35V
V
L
≥ 2.35V
1.62V ≤ V
L
< 2.35V
TXD = V
L
TXD = 0V
(Note 6)
RXD = V
L
– 0.4V
RXD = 0.4V, Bus
Dominant
CANH
CANL
V
O(R)
V
OD(D)
V
OD(R)
V
OC(D)
I
OS(D)
Bus Output Voltage (Recessive) to GND2
Differential Output Voltage (Dominant)
Differential Output Voltage (Recessive)
Common Mode Output Voltage (Dominant)
to GND2
Bus Output Short-Circuit Current CANH
(Dominant)
CANH
CANL
CANL
TXD = 0V, t< t
TOTXD
TXD = 0V, t< t
TOTXD
3V ≤ V
L
≤ 5.5V
1.62V ≤ V
L
< 3V
3V ≤ V
L
≤ 5.5V
1.62V ≤ V
L
< 3V
V
CC2
= 5V
V
CC2
= 3.3V
V
CC2
= 5V
V
CC2
= 3.3V
V
CC2
= 5V, No Load (Figure 1)
V
CC2
= 3.3V, No Load (Figure 1)
R
L
= 50Ω to 65Ω (Figure 1)
No Load (Figure 1)
V
CC2
= 5V, (Figure 1)
V
CC2
= 3.3V, (Figure 1)
CANH = 0V to GND2
CANH = ±60V to GND2
CANL = 5V to GND2
CANL = ±60V to GND2
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ELECTRICAL CHARACTERISTICS
MIN
0.7 • V
L
0.75 • V
L
–0.3
–0.3
TYP
MAX
V
L
+ 0.3
V
L
+ 0.3
0.3 • V
L
0.25 • V
L
UNITS
V
V
V
V
µA
µA
V
V
V
V
µA
µA
pF
Control Inputs S, ON,
RE:
11
25
±1
CAN Transmit Data Input Pin TXD
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0.7 • V
L
0.75 • V
L
–0.3
–0.3
–50
5
V
L
+ 0.3
V
L
+ 0.3
0.3 • V
L
0.25 • V
L
±5
–2
CAN Receive Data Output Pin RXD
–4
–1
4
1
2.75
2.15
0.5
0.5
2
1.45
1.5
–500
2
1.45
–100
–100
75
–3
3.6
2.9
1.4
0.9
2.5
1.95
2.2
0
2.5
1.95
–75
3
110
100
4.5
3.3
2.25
1.65
3
2.45
3
50
3
2.45
mA
mA
mA
mA
V
V
V
V
V
V
V
mV
V
V
mA
mA
mA
mA
Bus Driver Pins CANH, CANL
V
O(D)
Bus Output Voltage (Dominant)
to GND2
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2889fa
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For more information
www.linear.com/LTM2889
LTM2889
The
l
denotes specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. Unless otherwise noted, the following conditions apply:
PV
CC
= V
CC
= 3.3V for the LTM2889-3, PV
CC
= V
CC
= 5V for the LTM2889-5, V
L
= 3.3V, GND = GND2 = S =
RE
= RS = 0V, ON = V
L
.
Figure 10 applies for V
CC2
= 3.3V; otherwise ADJ is floating. Figure 1 applies with R
L
= 60Ω and dominant mode measurements are
taken prior to TXD dominant timeout (t < t
TOTXD
). (Note 2)
SYMBOL
V
CM
V
TH+
V
TH–
ΔV
TH
R
IN
R
ID
ΔR
IN
C
IH
C
IL
C
ID
I
BL
PARAMETER
Bus Common Mode Voltage to GND2 = (CANH
+ CANL)/2 for Data Reception
Bus Input Differential Threshold Voltage
(Positive-Going)
Bus Input Differential Threshold Voltage
(Negative-Going)
Bus Input Differential Hysteresis Voltage
Input Resistance (CANH and CANL) to GND2
Differential Input Resistance
Input Resistance Matching
Input Capacitance to GND2 (CANH)
Input Capacitance to GND2 (CANL)
Differential Input Capacitance
Bus Leakage Current (V
CC2
= 0V) (I-Grade)
Bus Leakage Current (V
CC2
= 0V) (H-Grade)
Bus Common Mode Stabilization Pin SPLIT
V
O_SPLIT
I
OS_SPLIT
V
IH_RS
V
IL_RS
I
IN_RS
SPLIT Output Voltage to GND2
SPLIT Short-Circuit Current
High Level Input Voltage to GND2
Low Level Input Voltage to GND2
Logic Input Current
Isolation Boundary
CANH, CANL, SPLIT
All Other Pins
0 ≤ RS ≤ V
CC2
GND2 to GND
Referenced to GND2 or V
CC2
Referenced to GND, GND2, or V
CC2
–500μA ≤ I(SPLIT) ≤ V
CC2
= 5V
500μA
V
CC2
= 3.3V
–60V ≤ SPLIT ≤ 60V to GND2
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ELECTRICAL CHARACTERISTICS
CONDITIONS
V
CC2
= 5V
V
CC2
= 3.3V
V
CC2
= 5V, –36V ≤ V
CM
≤ 36V
V
CC2
= 3.3V, –25V ≤ V
CM
≤ 25V
V
CC2
= 5V, –36V ≤ V
CM
≤ 36V
V
CC2
= 3.3V, –25V ≤ V
CM
≤ 25V
V
CC2
= 5V, –36V ≤ V
CM
≤ 36V
V
CC2
= 3.3V, –25V ≤ V
CM
≤ 25V
R
IN
= ΔV/ΔI; ΔI = ±20μA
R
IN
= ΔV/ΔI; ΔI = ±20μA
R
IN
(CANH) to R
IN
(CANL)
(Note 6)
(Note 6)
(Note 6)
CANH = CANL = 5V, T ≤ 85°C
CANH = CANL = 5V, T ≤ 125°C
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MIN
TYP
MAX
±36
±25
UNITS
V
V
mV
mV
mV
mV
mV
mV
Bus Receiver Pins CANH, CANL
775
775
500
500
625
625
150
150
25
50
40
80
32
8
8.4
900
900
50
100
±1
kΩ
kΩ
%
pF
pF
pF
±10
±40
1.5
0.9
2.5
1.9
3.5
2.9
±3
0.9 • V
CC2
0.5 • V
CC2
–170
0
±10
±25
±4
10
μA
μA
V
V
mA
V
V
μA
kV
kV
kV
Logic/Slew Control Input RS
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ESD (HBM) (Note 3)
2889fa
For more information
www.linear.com/LTM2889
5
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