I
NTEGRATED
C
IRCUITS
D
IVISION
Features
•
•
•
•
•
•
•
•
•
•
Bidirectionally Buffers Both I
2
C Signals
Glitch-Free Operation
Extends and Isolates I
2
C Interfaces
Standard- and Fast-mode I
2
C
Side B Fast-mode I
2
C Compliant V
DDB
> 4.5V
Very Low EM and RF Generation - No Internal Clock
SMBus Compatible V
DDB
= 3.3V
Operates on 2.7V to 5.5V, Enabling Level Translation
Slew-Limited Drivers Reduce EMI
Powerdown to Hi-Z Doesn't Load I
2
C
3750V
rms
Galvanic Isolation
Optically Isolated I
2
C Bus Repeater
Description
IXYS Integrated Circuits Division’s CPC5902 is a dual,
optically isolated, bidirectional logic-bus repeater. It
galvanically isolates two open-drain logic signals, and
provides a galvanic isolation of 3750V
rms
. When the
two sides’ supply voltages are configured with different
voltages, the CPC5902 also functions as a logic level
translator for levels as low as 2.7V or as high as 5.5V.
Unlike transformer or capacitive isolators, the optically
isolated repeaters pass DC signals, and do not need
to be clocked periodically to sustain the logic states.
Buffered signals will always return to their proper value
after a transient interruption on either side.
CPC5902
Applications
•
•
•
•
•
Isolated Signal Monitoring and Control
Power-over-Ethernet
Power Supply High Side Interface
I
2
C Bus Length Extenders
I
2
C Logic Level Translation
Ordering Information
Part
CPC5902G
CPC5902GS
Description
8-Pin DIP (50 / Tube)
8-Pin Surface Mount (50 / Tube)
Approvals
•
UL 1577 Certified Component: File E76270
•
EN/IEC 60950 Certified Component:
TUV Certificate B 11 10 49410 007
Figure 1. CPC5902 Functional Block Diagram
V
DDA
IOA1
1
CPC5902GSTR 8-Pin Surface Mount (1000 / Reel)
Pb
V
DDB
e
3
8
B
V
DDB
3750V
rms
Optical Isolation
A
V
DDA
GND
A
2
A
V
DDA
IOA2
3
A
LED
LED
V
DDB
B
V
DDB
D Q
CLR
7
V
DDB
IOB1
6
V
DDB
B
D Q
CLR
5
B
B
GND
B
V
DDA
V
DDA
4
A
V
DDA
LED
A
LED
V
DDB
V
DDB
IOB2
DS-CPC5902-R03
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1
I
NTEGRATED
C
IRCUITS
D
IVISION
CPC5902
1. Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.1 Package Pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.2 Pin Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.3 Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.4 ESD Rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.5 Thermal Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.6 General Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.7 Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.8 Switching Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.9 IOA to IOB Switching Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.10 IOB to IOA Switching Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3
3
3
3
3
3
4
4
5
6
6
2. Typical Performance Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3. Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8
3.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3.2 Calculating Minimum Pull-Up Resistor Values. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
4. Manufacturing Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.1 Moisture Sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.2 ESD Sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.3 Reflow Profile. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.4 Board Wash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.5 Mechanical Dimensions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
12
12
12
12
12
13
2
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R03
I
NTEGRATED
C
IRCUITS
D
IVISION
1 Specifications
1.1 Package Pinout
1.2 Pin Description
Pin#
Name
IOA1
GND
A
IOA2
V
DDA
IOB2
GND
B
IOB1
V
DDB
Description
CPC5902
1
2
3
4
8
7
6
5
1
2
3
4
5
6
7
8
Bidirectional Input/Output 1 - Side A
Supply Return - Side A
Bidirectional Input/Output 2 - Side A
Supply Voltage - Side A
Bidirectional Input/Output 2 - Side B
Supply Return - Side B
Bidirectional Input/Output 1 - Side B
Supply Voltage - Side B
1.3 Absolute Maximum Ratings
Electrical Absolute Maximum Ratings are at 25°C.
Voltages with respect to local ground: GND
A
or GND
B
.
Parameter
Supply Voltage A
Supply Voltage B
Input Voltage
Power Dissipation
1
Isolation Voltage, Input to Output
60 Seconds
2 Seconds
Operating Temperature
Operating Relative Humidity
(Non-condensing)
Storage Temperature
1
Symbol
V
DDA
V
DDB
V
IOx
P
TOT
-
T
A
RH
T
STG
Min
-0.5
-0.5
-0.3
-
3750
4500
-40
5
-50
Max
+6.5
+6.5
V
DDx
+ 0.3
800
-
-
+85
85
+125
Units
V
V
V
mW
V
rms
°C
%
°C
Derate total power by 7.5mW/°C above 25°C.
Absolute maximum ratings are stress ratings. Stresses in excess of these ratings can cause permanent damage to the device.
Functional operation of the device at conditions beyond those indicated in the operational sections of this data sheet is not
implied.
1.4 ESD Rating
ESD Rating (Human Body Model)
4000V
1.5 Thermal Characteristics
Parameter
Thermal Resistance, Junction to Ambient
R03
Conditions
Free Air
Symbol
R
JA
Typical
114
Units
°C/W
3
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I
NTEGRATED
C
IRCUITS
D
IVISION
CPC5902
1.6 General Conditions
Unless otherwise specified, minimum and maximum values are guaranteed by production testing requirements or by
design. Typical values are characteristic of the device at 25°C, and are the result of engineering evaluations. They are
provided for information purposes only, and are not part of the manufacturing testing requirements.
Specifications cover the operating temperature range T
A
= -40°C to +85°C.
1.7 Electrical Specifications
Parameter
Conditions
I
SINK1
=6mA, I
SINK2
=6mA
V
DDA
=3.3V, I
SINK
=0
V
DDA
=3.3V, I
SINK1
=6mA, I
SINK2
=6mA
V
DDA
=5.5V, I
SINK
=0, T
A
=25°C
Leakage Current
Input Capacitance
Falling Input Low Threshold
Rising Input High Threshold
Hysteresis
Output Drive
Output Temperature Coefficient
V
DDA
2.7V to 5.5V
V
DDA
2.7V to 5.5V
V
DDA
=2.7V to 5.5V
V
DDA
=2.7V, I
SINK
=3mA
V
DDA
=2.7V, I
SINK
=6mA
V
DDA
=2.7V to 5.5V, I
SINK
=6mA
I
SINK1
=I
SINK2
=3mA
V
DDB
=3.3V, I
SINK
=0
V
DDB
=3.3V, I
SINK1
=I
SINK2
=3mA
V
DDB
=5.5V, I
SINK
=0, T
A
=25°C
Leakage Current
Input Capacitance
Falling Input Low Threshold
V
DDB
= 2.7V
V
DDB
= 2.7V to 5.5V
Hysteresis
Output Drive
V
DDB
=2.7V to 5.5V
V
DDB
=2.7V, I
SINK
=3mA
V
DDB
=2.7V, I
SINK
=0.1mA
V
DDB
= 2.7V to 5.5V, I
SINK
=3mA
V
DDB
4.5V, I
SINK
=6mA
Self-Drive Margin
Output Temperature Coefficient
V
DD
=2.7V, I
SINK
=0.1mA (Self_Out-In) V
DIFFERENCE
V
DDB
=2.7V to 5.5V, I
SINK
=3mA
V
OLB
- V
ILB
TC
B
V
OLB
-
-
25
-
V
ILB
HYST
B
IOB1=IOB2=V
DDB
I
LEAKB
C
IN
0.48
0.2V
DDB
- 60mV
-
0.63
-
I
DDB
IOA1=IOA2=V
DDA
I
LEAKA
C
IN
V
ILA
V
IHA
HYST
A
V
OLA
TC
A
V
DDB
0.3V
DDA
-
-
-
-
-
2.7
-
-
-
-
I
DDA
Symbol
Min
Typ
Max
Units
Side A
Supply Voltage
Supply Current
V
DDA
2.7
-
-
-
-
-
7.5
7.85
8.1
0.01
3
-
-
0.15V
DDA
0.21
0.42
+1.2
-
12.1
12.25
12.7
0.01
3
0.54
0.2V
DDB
0.01V
DDB
0.72
0.62
0.23V
DDB
-
-
+0.4
0.6
0.2V
DDB
+ 60mV
-
0.81
-
0.23V
DDB
+ 190mV
0.3V
DDB
-
-
mV
mV/°C
V
V
V
-
0.7V
DDA
-
0.35
0.7
-
5.5
-
-
16
10
A
pF
mA
5.5
-
-
10
10
A
pF
V
V
V
mV/°C
V
mA
V
Side B
Supply Voltage
Supply Current
4
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R03
I
NTEGRATED
C
IRCUITS
D
IVISION
1.8
Switching
Parameter
I
2
C Clock Frequency
I
SINKA
=6mA,
C
LOADA
=400pF
CPC5902
Specifications
Conditions
I
SINKB
=3mA, C
LOADB
=200pF
I
SINKB
=6mA, C
LOADB
=400pF
(V
DDB
4.5V)
f
MAX
500
-
-
kHz
Symbol
Min
Typ
Max
Units
Propagation Delay A to B
1
Falling
Rising
Propagation Delay B to A
2
Falling
Rising
Propagation Delay B to A to B
2
Rising
1
Refer to “IOA to IOB Switching Waveforms” on page 6
2
Refer to “IOB to IOA Switching Waveforms” on page 6
V
DDA
=V
DDB
=3.3V,
R
PUA
=475,
R
PUB
=825,
C
IOA
=C
IOB
=20pF
0.5V
DDA
to 0.5V
DDB
t
PHL_AB
t
PLH_AB
t
PHL_BA
t
PLH_BA
t
PLH_BAB
-
-
60
122
135
270
ns
0.2V
DDB
to 0.5V
DDA
0.2V
DDB
to 0.5V
DDB
-
-
-
90
165
290
170
275
480
ns
ns
R03
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