MAX12930FASA+* [MAXIM]
Two-Channel Digital Isolators;
| 型号： | MAX12930FASA+* |
| 厂家： | 
MAXIM INTEGRATED PRODUCTS |
| 描述： | Two-Channel Digital Isolators |
| 文件： | 总20页 (文件大小：658K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
EVALUATION KIT AVAILABLE
MAX12930/MAX12931
Two-Channel Digital Isolators
General Description
Benefits and Features
● Robust Galvanic Isolation of Digital Signals
The MAX12930/MAX12931 are a family of 2-channel,
3.75kV/5kVRMS digital galvanic isolators using Maxim’s
proprietary process technology. These devices transfer
digital signals between circuits with different power
domains while using as little as 0.65mW per channel at
1Mbps with 1.8V.
•ꢀ Withstands 5kV for 60s (VISO) Wide-Body
RMS
•ꢀ Withstands 3.75kV
for 60s (VISO) Narrow-
RMS
Body
•ꢀ Continuously Withstands 848V
Wide-Body
•ꢀ Continuously Withstands 445V
Narrow-Body
•ꢀ Withstands ±10kV Surge between GNDA and
GNDB with 1.2/50µs waveform
•ꢀ High CMTI (50kV/µs, typ)
(VIOWM)
(VIOWM)
RMS
RMS
The two channels of the MAX12931 transfer data in
opposite directions, and this makes the MAX12931 ideal
for isolating the TX and RX lines of a transceiver. The
MAX12930 features two channels transferring data in the
same direction.
● Options to Support a Broad Range of Applications
•ꢀ 2 Data Rates (25Mbps/150Mbps)
Both devices are available with a maximum data rate of
either 25Mbps or 150Mbps and with the default outputs
that are either high or low. The default is the state the
output assumes when the input is not powered, or if the
input is open-circuit. See the Ordering Information for
suffixes associated with each option. Independent 1.71V
to 5.5V supplies on each side of the isolator also make
the devices suitable for use as level translators.
•ꢀ 2ꢀChannelꢀDirectionꢀConfigurations
•ꢀ 2 Output Default States (High or Low)
● Low Power Consumption
•ꢀ 1.3mW per Channel at 1Mbps with V
= 3.3V
DD
•ꢀ 3.3mW per Channel at 100Mbps with V
= 1.8V
DD
Applications
The MAX12930/MAX12931 are available in an 8-pin,
narrow-body SOIC package. In addition, the MAX12931
is available in a 16-pin, wide-body SOIC package. The
package material has a minimum comparative tracking
index (CTI) of 600V, which gives it a group 1 rating in
creepage tables. All devices are rated for operation at
ambient temperatures of -40°C to +125°C.
● Fieldbus Communications for Industrial Automation
● Isolated RS232, RS-485/RS-422, CAN
● General Isolation Application
● Battery Management
● Medical Systems
Ordering Information appears at end of data sheet.
Functional Diagrams
MAX12930
MAX12931
V
V
V
V
DDB
DDA
IN1
DDB
DDA
OUT1
OUT1
IN1
OUT2
GNDB
OUT2
GNDB
IN2
IN2
GNDA
GNDA
19-8563; Rev 0; 6/16
MAX12930/MAX12931
Two-Channel Digital Isolators
Absolute Maximum Ratings
V
to GNDA........................................................-0.3V to +6V
Continuous Power Dissipation (T = +70°C)
DDA
A
V
to GNDB........................................................-0.3V to +6V
Wide SOIC (derate 14.1mW/°C above +70°C) ......1126.8mW
DDB
IN_ on SIDE Ato GNDA...........................................-0.3V to +6V
IN_ on SIDE B to GNDB .........................................-0.3V to +6V
Narrow SOIC (derate 13.3mW/°C above +70°C).....588.2mW
Operating Temperature Range......................... -40°C to +125°C
Maximum Junction Temperature .....................................+150°C
Storage Temperature Range............................ -60°C to +150°C
Soldering Temperature (reflow).......................................+260°C
OUT_ on SIDE A to GNDA....................... -0.3V to V
OUT_on SIDE B to GNDB ....................... -0.3V to V
Short-Circuit Duration
+ 0.3V
+ 0.3V
DDA
DDB
OUT_ on SIDE A to GNDA, OUT_ on SIDE B to GNDB
...............................................................................Continuous
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these
or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect
device reliability.
(Note 1)
Package Thermal Characteristics
Wide SOIC
Narrow SOIC
Junction-to-AmbientꢀThermalꢀResistanceꢀ(θ ) ........136°C/W
Junction-to-AmbientꢀThermalꢀResistanceꢀ(θ ) ..........71°C/W
JA
JA
Junction-to-CaseꢀThermalꢀResistanceꢀ(θ )...............23°C/W
Junction-to-CaseꢀThermalꢀResistanceꢀ(θ )...............38°C/W
JC
JC
Note 1: Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-layer
board. For detailed information on package thermal considerations, refer to www.maximintegrated.com/thermal-tutorial.
DC Electrical Characteristics
(V
- V
= 1.71V to 5.5V, V
- V
= 1.71V to 5.5V, C = 15pF, T = -40°C to +125°C, unless otherwise noted. Typical
DDA
GNDA
DDB
GNDB L A
values are at V
- V
= 3.3V, V
- V
= 3.3V, GNDA = GNDB, T = 25°C, unless otherwise noted.) (Note 2)
DDA
GNDA
DDB
GNDB A
PARAMETER
POWER SUPPLY
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
V
V
Relative to GNDA
Relative to GNDB
_ rising
1.71
1.71
5.5
5.5
DDA
Supply Voltage
V
DDB
Undervoltage-Lockout
Threshold
Undervoltage-Lockout
Threshold Hysteresis
V
V
1.5
1.6
45
1.66
V
UVLO_
DD
V
mV
UVLO_HYST
Maxim Integrated
│ 2
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MAX12930/MAX12931
Two-Channel Digital Isolators
DC Electrical Characteristics (continued)
(V
- V
= 1.71V to 5.5V, V
- V
= 1.71V to 5.5V, C = 15pF, T = -40°C to +125°C, unless otherwise noted. Typical
DDA
GNDA
DDB
GNDB L A
values are at V
- V
= 3.3V, V
- V
= 3.3V, GNDA = GNDB, T = 25°C, unless otherwise noted.) (Note 2)
DDA
GNDA
DDB
GNDB A
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
0.32
0.31
0.3
MAX
0.58
0.54
0.53
0.39
1.26
1.20
1.18
1.01
3.00
2.91
2.88
2.62
0.83
0.79
0.76
0.67
1.83
1.40
1.22
1.00
4.99
3.39
2.69
2.04
UNITS
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
= 5V
DDA
DDA
DDA
DDA
DDA
DDA
DDA
DDA
DDA
DDA
DDA
DDA
DDB
DDB
DDB
DDB
DDB
DDB
DDB
DDB
DDB
DDB
DDB
DDB
= 3.3V
= 2.5V
= 1.8V
= 5V
1MHz square
wave, C = 0pF
L
0.29
0.81
0.8
12.5MHz square
wave, C = 0pF
L
= 3.3V
= 2.5V
= 1.8V
= 5V
I
mA
DDA
0.78
0.77
2.15
2.09
2.06
2
50MHz square
wave, C = 0pF
L
= 3.3V
= 2.5V
= 1.8V
= 5V
Supply Current (MAX12930_)
(Note 3)
0.5
= 3.3V
= 2.5V
= 1.8V
= 5V
0.47
0.45
0.4
1MHz square
wave, C = 0pF
L
1.37
1.02
0.87
0.71
4.21
2.81
2.21
1.69
12.5MHz square
wave, C = 0pF
L
= 3.3V
= 2.5V
= 1.8V
= 5V
I
mA
DDB
50MHz square
wave, C = 0pF
= 3.3V
= 2.5V
= 1.8V
L
Maxim Integrated
│ 3
www.maximintegrated.com
MAX12930/MAX12931
Two-Channel Digital Isolators
DC Electrical Characteristics (continued)
(V
- V
= 1.71V to 5.5V, V
- V
= 1.71V to 5.5V, C = 15pF, T = -40°C to +125°C, unless otherwise noted. Typical
DDA
GNDA
DDB
GNDB L A
values are at V
- V
= 3.3V, V
- V
= 3.3V, GNDA = GNDB, T = 25°C, unless otherwise noted.) (Note 2)
DDA
GNDA
DDB
GNDB A
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
0.42
0.39
0.38
0.36
1.07
0.89
0.81
0.73
3.06
2.37
2.08
1.82
0.42
MAX
0.70
0.67
0.64
0.56
1.52
1.29
1.19
1.03
3.87
3.06
2.72
2.33
0.70
UNITS
V
= 5V
DDA
V
= 3.3V
= 2.5V
= 1.8V
= 5V
1MHz square
DDA
wave, C = 0pF
L
V
V
V
V
V
V
V
V
V
V
V
DDA
DDA
DDA
DDA
DDA
DDA
DDA
DDA
DDA
DDA
DDB
12.5MHz square
wave, C = 0pF
L
= 3.3V
= 2.5V
= 1.8V
= 5V
I
mA
DDA
50MHz square
wave, C = 0pF
L
= 3.3V
= 2.5V
= 1.8V
= 5V
Supply Current (MAX12931_)
(Note 3)
V
V
V
V
V
V
V
V
V
V
V
= 3.3V
= 2.5V
= 1.8V
= 5V
0.39
0.38
0.36
1.07
0.89
0.81
0.73
3.06
2.37
2.08
1.82
0.67
0.64
0.56
1.52
1.29
1.19
1.03
3.87
3.06
2.72
2.33
DDB
DDB
DDB
DDB
DDB
DDB
DDB
DDB
DDB
DDB
DDB
1MHz square
wave, C = 0pF
L
12.5MHz square
wave, C = 0pF
L
= 3.3V
= 2.5V
= 1.8V
= 5V
mA
I
DDB
50MHz square
= 3.3V
= 2.5V
= 1.8V
wave, C = 0pF
L
LOGIC INPUTS AND OUTPUTS
2.25Vꢀ≤ꢀV
1.71Vꢀ≤ꢀV
2.25Vꢀ≤ꢀV
ꢀ≤ꢀ5.5V
0.7 x V
DD_
DD_
DD_
DD_
Input High Voltage
V
V
V
IH
< 2.25V
ꢀ≤ꢀ5.5Vꢀ
< 2.25V
0.75 x V
DD_
0.8
0.7
Input Low Voltage
Input Hysteresis
V
IL
1.71Vꢀ≤ꢀV
DD_
MAX1293_B/E
410
80
-5
5
V
mV
HYS
MAX1293_C/F
Input Pullup Current (Note 4)
Input Pulldown Current (Note 4)
Input Capacitance
I
IN_, MAX1293_B/C
IN_, MAX1293_E/F
-10
1.5
-1.5
10
µA
µA
pF
PU
PD
I
C
IN_, f
= 1MHz
2
IN
SW
Maxim Integrated
│ 4
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MAX12930/MAX12931
Two-Channel Digital Isolators
DC Electrical Characteristics (continued)
(V
- V
= 1.71V to 5.5V, V
- V
= 1.71V to 5.5V, C = 15pF, T = -40°C to +125°C, unless otherwise noted. Typical
DDA
GNDA
DDB
GNDB L A
values are at V
- V
= 3.3V, V
- V
= 3.3V, GNDA = GNDB, T = 25°C, unless otherwise noted.) (Note 2)
DDA
GNDA
DDB
GNDB A
PARAMETER
SYMBOL
CONDITIONS
= 4mA source
MIN
TYP
MAX
UNITS
Output Voltage High (Note 4)
Output Voltage Low (Note 4)
V
I
I
V
- 0.4
V
V
OH
OUT
OUT
DD_
V
= 4mA sink
0.4
OL
Dynamic Characteristics MAX1293_B/E
(V
- V
= 1.71V to 5.5V, V
- V
= 1.71V to 5.5V, C = 15pF, T = -40°C to +125°C, unless otherwise noted. Typical
DDA
GNDA
DDB
GNDB L A
values are at V
- V
= 3.3V, V
- V
= 3.3V, GNDA = GNDB, T = 25°C, unless otherwise noted.) (Notes 2,3)
DDA
GNDA
DDB
GNDB A
PARAMETER
SYMBOL
CONDITIONS
IN_ = GND_ or V _ (Note 5)
MIN
TYP
MAX
UNITS
Common-Mode Transient Im-
munity
50
CMTI
kV/µs
DD
Maximum Data Rate
Minimum Pulse Width
Glitch Rejection
DR
25
Mbps
ns
MAX
PW
40
MIN
ns
10
17
29
4.5Vꢀ≤ꢀV
3.0Vꢀ≤ꢀV
≤ꢀ5.5V
≤ꢀ3.6V
≤ꢀ2.75V
17.4
17.6
18.3
20.7
16.9
17.2
17.8
19.8
23.9
24.4
25.8
29.6
23.4
24.2
25.4
29.3
0.4
32.5
33.7
36.7
43.5
33.6
35.1
38.2
45.8
4
DD_
DD_
t
PLH
2.25Vꢀ≤ꢀV
1.71Vꢀ≤ꢀV
4.5Vꢀ≤ꢀV
DD_
≤ꢀ1.89V
DD_
Propagation Delay
(Figure 1)
ns
ns
ns
≤ꢀ5.5V
≤ꢀ3.6V
≤ꢀ2.75V
DD_
3.0Vꢀ≤ꢀV
DD_
t
PHL
2.25Vꢀ≤ꢀV
DD_
1.71Vꢀ≤ꢀV
≤ꢀ1.89V
DD_
Pulse Width Distortion
PWD
4.5Vꢀ≤ꢀV
≤ꢀ5.5V
≤ꢀ3.6V
≤ꢀ2.75V
15.1
15
DD_
3.0Vꢀ≤ꢀV
DD_
t
SPLH
2.25Vꢀ≤ꢀV
1.71Vꢀ≤ꢀV
4.5Vꢀ≤ꢀV
15.4
20.5
13.9
14.2
16
DD_
≤ꢀ1.89V
DD_
Propagation Delay Skew
Part-to-Part (same channel)
≤ꢀ5.5V
≤ꢀ3.6V
≤ꢀ2.75V
DD_
3.0Vꢀ≤ꢀV
DD_
t
SPHL
2.25Vꢀ≤ꢀV
DD_
1.71Vꢀ≤ꢀV
≤ꢀ1.89V
21.8
2
DD_
t
SCSLH
Propagation Delay Skew
Channel-to-Channel
(Same Direction)
ns
t
2
SCSHL
MAX12930 only
Maxim Integrated
│ 5
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MAX12930/MAX12931
Two-Channel Digital Isolators
Dynamic Characteristics MAX1293_B/E (continued)
(V
- V
= 1.71V to 5.5V, V
- V
= 1.71V to 5.5V, C = 15pF, T = -40°C to +125°C, unless otherwise noted. Typical
DDA
GNDA
DDB
GNDB L A
values are at V
- V
= 3.3V, V
- V
= 3.3V, GNDA = GNDB, T = 25°C, unless otherwise noted.) (Notes 2,3)
DDA
GNDA
DDB
GNDB A
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
ns
Propagation Delay Skew
Channel-to-Channel
(Opposite Direction)
MAX12931 Only
t
2
SCOLH
t
2
SCOHL
Peak Eye Diagram Jitter
T
25Mbps
4.5Vꢀ≤ꢀV
3.0Vꢀ≤ꢀV
250
ps
JIT(PK)
≤ꢀ5.5V
≤ꢀ3.6V
1.6
2.2
3
DD_
DD_
Rise Time
t
ns
ns
R
2.25Vꢀ≤ꢀV
1.71Vꢀ≤ꢀV
≤ꢀ2.75V
≤ꢀ1.89V
DD_
4.5
1.4
2
DD_
4.5Vꢀ≤ꢀV
3.0Vꢀ≤ꢀV
≤ꢀ5.5V
≤ꢀ3.6V
DD_
DD_
Fall Time
t
F
2.25Vꢀ≤ꢀV
≤ꢀ2.75V
≤ꢀ1.89V
2.8
5.1
DD_
DD_
1.71Vꢀ≤ꢀV
Maxim Integrated
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MAX12930/MAX12931
Two-Channel Digital Isolators
Dynamic Characteristics MAX1293_C/F
(V
- V
= 1.71V to 5.5V, V
- V
= 1.71V to 5.5V, C = 15pF, T = -40°C to +125°C, unless otherwise noted. Typical
DDA
GNDA
DDB
GNDB L A
values are at V
- V
= 3.3V, V
- V
= 3.3V, GNDA = GNDB, T = 25°C, unless otherwise noted.) (Notes 2,3)
DDA
GNDA
DDB
GNDB A
PARAMETER
SYMBOL
CONDITIONS
MIN
150
TYP
50
MAX
UNITS
kV/us
Mbps
Common-Mode Transient
Immunity
CMTI
IN_ = GND_ or VDD_ (Note 5)
Maximum Data Rate
DR
MAX
2.25Vꢀ≤ꢀV _ꢀ≤ꢀ5.5V
5
DD
Minimum Pulse Width
PW
ns
MIN
1.71Vꢀ≤ꢀV _ꢀ≤ꢀ1.89V
6.67
9.2
10.2
13.4
20.3
9.4
10.5
14.1
21.7
2
DD
4.5Vꢀ≤ꢀV _ꢀ≤ꢀ5.5V
4.1
4.2
4.9
7.1
4.3
4.4
5.1
7.2
5.4
5.9
DD
3.0Vꢀ≤ꢀV _ꢀ≤ꢀ3.6V
DD
t
PLH
2.25Vꢀ≤ꢀV _ꢀ≤ꢀ2.75V
7.1
DD
1.71Vꢀ≤ꢀV _ꢀ≤ꢀ1.89V
10.9
5.6
DD
Propagation Delay
(Figure 1)
ns
ns
ns
4.5Vꢀ≤ꢀV _ꢀ≤ꢀ5.5V
DD
3.0Vꢀ≤ꢀV _ꢀ≤ꢀ3.6V
6.2
DD
t
PHL
2.25Vꢀ≤ꢀV _ꢀ≤ꢀ2.75V
7.3
DD
1.71Vꢀ≤ꢀV _ꢀ≤ꢀ1.89V
10.9
0.3
DD
Pulse Width Distortion
PWD
4.5Vꢀ≤ꢀV
3.0Vꢀ≤ꢀV
≤ꢀ5.5V
≤ꢀ3.6V
≤ꢀ2.75V
3.7
4.3
6
DD_
DD_
t
SPLH
2.25Vꢀ≤ꢀV
1.71Vꢀ≤ꢀV
4.5Vꢀ≤ꢀV
DD_
≤ꢀ1.89V
10.3
3.8
4.7
6.5
11.5
2
DD_
Propagation Delay Skew
Part-to-Part (same channel)
≤ꢀ5.5V
≤ꢀ3.6V
≤ꢀ2.75V
DD_
3.0Vꢀ≤ꢀV
DD_
t
SPHL
2.25Vꢀ≤ꢀV
DD_
1.71Vꢀ≤ꢀV
≤ꢀ1.89V
DD_
t
t
SCSLH
Propagation Delay Skew
Channel-to-Channel
(same direction)
ns
SCSHL
2
MAX12930 only
t
t
2
2
SCOLH
Propagation Delay Skew
Channel-to-Channel
(opposite direction)
MAX12931 only
ns
ps
SCOHL
Peak Eye Diagram Jitter
T
150Mbps
90
JIT(PK)
Maxim Integrated
│ 7
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MAX12930/MAX12931
Two-Channel Digital Isolators
Dynamic Characteristics MAX1293_C/F (continued)
(V
- V
= 1.71V to 5.5V, V
- V
= 1.71V to 5.5V, C = 15pF, T = -40°C to +125°C, unless otherwise noted. Typical
DDA
GNDA
DDB
GNDB L A
values are at V
- V
= 3.3V, V
- V
= 3.3V, GNDA = GNDB, T = 25°C, unless otherwise noted.) (Notes 2,3)
DDA
GNDA
DDB
GNDB A
PARAMETER
SYMBOL
CONDITIONS
≤ꢀ5.5V
MIN
TYP
MAX
1.6
2.2
3
UNITS
4.5Vꢀ≤ꢀV
3.0Vꢀ≤ꢀV
DD_
≤ꢀ3.6V
DD_
Rise Time
t
ns
R
2.25Vꢀ≤ꢀV
1.71Vꢀ≤ꢀV
≤ꢀ2.75V
≤ꢀ1.89V
DD_
4.5
1.4
2
DD_
4.5Vꢀ≤ꢀV
3.0Vꢀ≤ꢀV
≤ꢀ5.5V
≤ꢀ3.6V
DD_
DD_
Fall Time
t
ns
F
2.25Vꢀ≤ꢀV
1.71Vꢀ≤ꢀV
≤ꢀ2.75V
≤ꢀ1.89V
2.8
5.1
DD_
DD_
Note 2: All devices are 100% production tested at T = +25°C. Specifications over temperature are guaranteed by design.
A
Note 3: Not production tested. Guaranteed by design and characterization,
Note 4: All currents into the device are positive. All currents out of the device are negative. All voltages are referenced to their
respective ground (GNDA or GNDB), unless otherwise noted.
Note 5: CMTI is the maximum sustainable common-mode voltage slew rate while maintaining the correct output. CMTI applies to
both rising and falling common-mode voltage sedges. Tested with the transient generator connected between GNDA and
GNDB (VCM = 1000V),
ESD Protection
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
ESD
Human Body Model, all pins
±3
kV
Maxim Integrated
│ 8
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MAX12930/MAX12931
Two-Channel Digital Isolators
Insulation Characteristics
Table 1. Narrow SOIC Insulation Characteristic
PARAMETER
SYMBOL
CONDITIONS
VALUE
UNITS
Method B1 = V x 1.875
(t = 1s, partial discharge < 5pC)
IORM
Partial Discharge Test Voltage
V
1182
V
V
PR
P
P
Maximum Repetitive Peak Isolation
Voltage
V
(Note 6)
630
445
6000
3750
10
IORM
IOWM
Maximum Working Isolation
Voltage
Continuous RMS voltage
(Note 6)
V
V
V
RMS
Maximum Transient Isolation
Voltage
V
V
t = 1s
V
P
IOTM
Maximum Withstand Isolation
Voltage
V
f
= 60Hz, duration = 60s (Note 7)
ISO
SW
RMS
Maximum Surge Isolation
Voltage
Basic Insulation, 1.2/50µs pulse per
IEC61000-4-5
kV
Ω
IOSM
9
Insulation Resistance
R
T
= 150°C, V = 500V
>10
S
A
IO
Barrier Capacitance Side A to Side
B
CIO
f
= 1MHz (Note 8)
2
pF
SW
Minimum Creepage Distance
Minimum Clearance Distance
Internal Clearance
CPG
CLR
Narrow SOIC
4
4
mm
mm
mm
Narrow SOIC
Distance through insulation
Material Group I (IEC60112)
0.015
>600
40/125/21
Comparative Tracking Index
Climate Category
CTI
Pollution Degree
(DIN VDE 0110, Table 1)
2
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MAX12930/MAX12931
Two-Channel Digital Isolators
Table 2. Wide SOIC Insulation Characteristic
PARAMETER
SYMBOL
CONDITIONS
VALUE
UNITS
Method B1 = V x 1.875
(t = 1s, partial discharge < 5pC)
IORM
Partial Discharge Test Voltage
V
2250
VP
PR
Maximum Repetitive Peak
Isolation Voltage
V
(Note 6)
1200
848
VP
IORM
IOWM
Maximum Working Isolation
Voltage
Continuous RMS voltage
(Note 6)
V
V
V
RMS
Maximum Transient Isolation
Voltage
V
V
t = 1s
8400
5000
10
VP
IOTM
Maximum Withstand Isolation
Voltage
V
f
= 60Hz, duration = 60s (Note 7)
ISO
SW
RMS
Basic Insulation, 1.2/50µs pulse per
IEC61000-4-5
Maximum Surge Isolation Voltage
Insulation Resistance
kV
Ω
IOSM
9
R
T
= 150°C, V = 500V
>10
S
A
IO
Barrier Capacitance Side A to Side
B
CIO
f
= 1MHz (Note 8)
2
pF
SW
Minimum Creepage Distance
Minimum Clearance Distance
Internal Clearance
CPG
CLR
Wide SOIC
8
8
mm
mm
mm
Wide SOIC
Distance through insulation
Material Group I (IEC60112)
0.015
>600
40/125/21
Comparative Tracking Index
Climate Category
CTI
Pollution Degree
(DIN VDE 0110, Table 1)
2
Note 6: VISO, VIOWM and VIORM are defined by the IEC 60747-5-5 standard.
Note 7: Product is qualified VISO for 60s. 100% production tested at 120% of VISO for 1s.
Note 8: Capacitance is measured with all pins on field-side and logic-side tied together.
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MAX12930/MAX12931
Two-Channel Digital Isolators
V
DDA
IN1, IN2
50%
50%
0.1µF
0.1µF
V
V
DDB
DDA
GNDA
V
V
DDB
DDA
t
SPLH
t
SPHL
MAX12930
MAX12931
V
DDB
50Ω
OUT1
OUT2
50%
50%
IN_
OUT_
GNDB
C
L
TEST
SOURCE
R
L
t
SCSHL
GNDA
GNDB
V
DDB
90%
50%
(A)
10%
GNDB
t
t
F
R
Figure 1. Test Circuit (A) and Timing Diagram (B)
Typical Operating Characteristics
(V
- V
= +3.3V, V
- V
= +3.3V, V
= V
, T = +25°C, unless otherwise noted.)
VDDA
GNDA
VDDB
GNDB
GNDA
GNDB A
SIDE A SUPPLY CURRENT
vs. DATA RATE
SIDE A SUPPLY CURRENT
vs. DATA RATE
SIDE A SUPPLY CURRENT
vs. DATA RATE
toc01
toc02
toc03
1.0
0.8
0.6
0.4
0.2
0.0
2.5
2.0
1.5
1.0
0.5
1.0
0.8
0.6
0.4
0.2
0.0
DRIVING ONE CHANNEL ON SIDE A
OTHER CHANNEL IS HIGH
MAX12930B/E
DRIVING ONE CHANNEL ON SIDE A
OTHER CHANNEL IS HIGH
MAX12930C/F
DRIVING ONE CHANNEL ON SIDE A
OTHER CHANNEL IS HIGH
MAX12931B/E
V
= 5.0V
= 3.3V
= 2.5V
= 1.8V
V
V
V
V
= 5.0V
V
= 5.0V
= 3.3V
= 2.5V
= 1.8V
DDA
DDA
DDA
DDA
DDA
DDA
V
V
V
= 3.3V
= 2.5V
= 1.8V
V
V
V
DDA
DDA
DDA
DDA
DDA
DDA
0.0
0
0
5
10
15
20
25
25
50
75
100
125
150
0
5
10
15
20
25
DATA RATE (Mbps)
DATA RATE (Mbps)
DATA RATE (Mbps)
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MAX12930/MAX12931
Two-Channel Digital Isolators
Typical Operating Characteristics (continued)
(V
- V
= +3.3V, V
- V
= +3.3V, V
= V
, T = +25°C, unless otherwise noted.)
VDDA
GNDA
VDDB
GNDB
GNDA
GNDB A
SIDE A SUPPLY CURRENT
vs. DATA RATE
SIDE B SUPPLY CURRENT
vs. DATA RATE
SIDE B SUPPLY CURRENT
vs. DATA RATE
toc04
toc05
toc06
2.5
2.0
1.5
1.0
0.5
0.0
1.0
0.8
0.6
0.4
0.2
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
DRIVING ONE CHANNEL ON SIDE A
OTHER CHANNEL IS HIGH
MAX12931C/F
DRIVING ONE CHANNEL ON SIDE A
DRIVING ONE CHANNEL ON SIDE A
C
L
= 0pF, OTHER CHANNEL IS HIGH,
C = 15pF, OTHER CHANNEL IS HIGH,
L
MAX12930B/E
MAX12930B/E
V
V
V
V
= 5.0V
V
V
V
V
= 5.0V
= 3.3V
= 2.5V
= 1.8V
DDA
DDA
DDA
DDA
DDA
DDA
DDA
DDA
V
V
V
V
= 5.0V
= 3.3V
= 2.5V
= 1.8V
DDA
DDA
DDA
DDA
= 3.3V
= 2.5V
= 1.8V
0.0
0
0
25
50
75
100
125
150
5
10
15
20
25
0
5
10
15
20
25
DATA RATE (Mbps)
DATA RATE (Mbps)
DATA RATE (Mbps)
SIDE B SUPPLY CURRENT
vs. DATA RATE
SIDE B SUPPLY CURRENT
vs. DATA RATE
SIDE B SUPPLY CURRENT
vs. DATA RATE
toc07
toc08
toc09
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
8.0
7.0
6.0
5.0
4.0
3.0
2.0
1.0
1.0
DRIVING ONE CHANNEL ON SIDE A
C = 0pF, OTHER CHANNEL IS HIGH,
MAX12930C/F
DRIVING ONE CHANNEL ON SIDE A
DRIVING ONE CHANNEL ON SIDE A
C = 15pF, OTHER CHANNEL IS HIGH,
L
C = 0pF, OTHER CHANNEL IS HIGH
L
L
MAX12930C/F
MAX12931B/E
0.8
0.6
0.4
0.2
0.0
V
V
V
V
= 5.0V
= 3.3V
= 2.5V
= 1.8V
V
V
V
V
= 5.0V
= 3.3V
= 2.5V
= 1.8V
DDA
DDA
DDA
DDA
DDA
DDA
DDA
DDA
VDDA = 5.0V
VDDA = 3.3V
VDDA = 2.5V
VDDA = 1.8V
0.0
0
0
25
50
75
100
125
150
25
50
75
100
125
150
0
5
10
15
20
25
DATA RATE (Mbps)
DATA RATE (Mbps)
DATA RATE (Mbps)
SIDE B SUPPLY CURRENT
vs. DATA RATE
SIDE B SUPPLY CURRENT
vs. DATA RATE
SIDE B SUPPLY CURRENT
vs. DATA RATE
toc10
toc11
toc12
2.500
2.000
1.500
1.000
0.500
0.000
3.0
2.5
2.0
1.5
1.0
0.5
8.0
DRIVING ONE CHANNEL ON SIDE A
CL = 0pF, OTHER CHANNEL IS HIGH
MAX12931C/F
DRIVING ONE CHANNEL ON SIDE A
L = 15pF, OTHER CHANNEL IS HIGH
MAX12931C/F
DRIVING ONE CHANNEL ON SIDE A
CL = 15pF, OTHER CHANNEL IS HIGH
MAX12931B/E
7.0
6.0
5.0
4.0
3.0
2.0
1.0
0.0
C
VDDA = 5.0V
VDDA = 3.3V
VDDA = 2.5V
VDDA = 1.8V
VDDA = 5.0V
VDDA = 3.3V
VDDA = 2.5V
VDDA = 1.8V
VDDA = 5.0V
VDDA = 3.3V
VDDA = 2.5V
VDDA = 1.8V
0.0
0
0
5
10
15
20
25
25
50
75
100
125
150
0
25
50
75
100
125
150
DATA RATE (Mbps)
DATA RATE (Mbps)
DATA RATE (Mbps)
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MAX12930/MAX12931
Two-Channel Digital Isolators
Typical Operating Characteristics (continued)
(V
- V
= +3.3V, V
- V
= +3.3V, V
= V
, T = +25°C, unless otherwise noted.)
VDDA
GNDA
VDDB
GNDB
GNDA
GNDB A
PROPAGATION DELAY
vs. V VOLTAGE
PROPAGATION DELAY
vs. TEMPERATURE
PROPAGATION DELAY
vs. TEMPERATURE
DDA
toc13
toc14
toc15
15.0
12.0
9.0
35
30
25
20
35.0
30.0
25.0
20.0
15.0
10.0
5.0
V
= V
DDB
INA TO OUTB,
MAX1293_B/E
VDDA = VDDB
INA TO OUTB
MAX1293_C/F
DDA
V
= 3.3V
DDB
INA TO OUTB
MAX1293_B/E
6.0
MAX1293_C/F
VDDA = 1.8V
VDDA = 1.8V
VDDA = 2.5V
VDDA = 3.3V
VDDA = 5.5V
VDDA = 2.5V
VDDA = 3.3V
VDDA = 5.5V
3.0
15
0.0
0.0
-50
-25
0
25
50
75
100 125
-50
-25
0
25
50
75
100 125
1.5
2.5
3.5
4.5
5.5
TEMPERATURE (°C)
TEMPERATURE (°C)
V
VOLTAGE (V)
DDA
EYE DIAGRAM at 150Mbps
MAX12931C/F
PROPAGATION DELAY
vs. VDDB VOLTAGE
toc17
MINIMUM PULSE WIDTH
toc16
toc18
35.0
30.0
25.0
20.0
15.0
10.0
5.0
MAX1293_B/E
40ns pulse
V
= 3.3V
DDA
INA TO OUTB
IN__
1V/div
1V/div
MAX1293_B/E
400mV/div
MAX1293_C/F
OUT__
0.0
1.5
2.5
3.5
4.5
5.5
1ns/div
20ns/div
V
VOLTAGE (V)
DDB
MINIMUM PULSE WIDTH
toc19
MAX1293_C/F
5ns pulse
IN__
1V/div
1V/div
OUT__
5ns/div
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MAX12930/MAX12931
Two-Channel Digital Isolators
Pin Configurations
TOP VIEW
+
+
1
2
3
4
8
7
6
5
1
2
3
4
8
7
6
5
V
V
V
V
DDB
DDA
IN1
DDB
DDA
MAX12930
MAX12931
OUT1
OUT2
GNDB
OUT1
IN2
IN1
IN2
OUT2
GNDB
GNDA
GNDA
8-SOIC
8-SOIC
+
GNDA
N.C.
1
2
3
4
5
6
7
8
16
15
14
GNDB
N.C.
MAX12931
V
V
DDB
DDA
13
12
11
10
9
OUT1
IN2
IN1
OUT2
N.C.
N.C.
GNDA
N.C.
N.C.
GNDB
W-16 SOIC
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MAX12930/MAX12931
Two-Channel Digital Isolators
Pin Description
PIN
NAME
FUNCTION
REFERENCE
MAX12930
8-PIN SOIC
MAX12931
8-PIN SOIC
MAX12931
16-PIN SOIC
Power Supply for side A. Bypass V
with
DDA
1
1
3
V
GNDA
DDA
a 0.1µF ceramic capacitor to GNDA.
Logic input for channel 1
Logic output of channel 1
Logic input for channel 2
Ground reference for side A
Ground reference for side B
Logic output of channel 2
Logic output of channel 1
Logic input for channel 1
2
-
—
2
—
4
IN1
OUT1
IN2
GNDA
GNDA
GNDA
—
3
4
5
6
7
—
3
5
4
1, 7
9, 16
12
GNDA
GNDB
OUT2
OUT1
IN1
5
—
6
GNDB
GNDB
GNDB
—
7
—
13
Power Supply for side B. Bypass V
a 0.1µF ceramic capacitor to GNDB.
with
DDB
8
8
14
V
GNDB
—
DDB
—
—
2,6,8,10,11,15
N.C.
Not internally connected
Typical Operating Circuit
2.5V
3.3V
0.1µF
0.1µF
MICRO
CONTROLLER
TRANSCEIVER
MAX12931
V
V
V
V
DD
DD
DDA
DDB
A
B
RX
OUT1
IN1
RXD
Y
Z
TXD
TX
OUT2
GNDB
IN2
GND
GNDA
GND
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MAX12930/MAX12931
Two-Channel Digital Isolators
in the narrow SOIC package and up to 1200V
continuous isolation is supported in the wide SOIC
package. The devices withstand differences of up to
of
PEAK
Detailed Description
The MAX12930/MAX12931 are a family of 2-channel
digital isolators. The MAX12930 transfers digital signals
between circuits with different power domain in one
direction, which is convenient for applications such as
digital I/O. The MAX12931 transfers digital signals in
opposite directions, which is necessary for isolated
RS-485 or other UART applications.
3.75kV
in the 8-pin narrow SOIC package or 5kV
RMS
RMS
in the 16-pin wide SOIC package for up to 60 seconds.
Level-Shifting
The wide supply voltage range of both V
and V
DDB
DDA
allows the MAX12930/MAX12931 family to be used for
Devices available in the 8-pin narrow body SOIC package
level translation in addition to isolation. V and V
DDA
DDB
are rated for up to 3.75kV
isolation voltage for 60
can be independently set to any voltage from 1.71V to
5.5V. The supply voltage sets the logic level on the
corresponding side of the isolator.
RMS
seconds and the device in the 16-pin wide body SOIC
package is rated for up to 5kV . This family of digital
RMS
isolators offers low-power operation, high electromagnetic
interference (EMI) immunity, and stable temperature
performance through Maxim’s proprietary process technology.
The devices isolate different ground domains and block
high-voltage/high-current transients from sensitive or
human interface circuitry.
Unidirectional Channels
Each channel of the MAX12930/MAX12931 is
unidirectional; it only passes data in one direction, as
indicated in the functional diagram. Each device features
two unidirectional channels that operate independently
with guaranteed data rates from DC up to 25Mbps (B/E
versions), or DC to 150Mbps (C/F versions). The output
driver of each channel is push-pull, eliminating the need
for pullup resistors. The outputs are able to drive both TTL
and CMOS logic inputs.
Devices are available with data rates from DC to 25Mbps
(B/E versions) or 150Mbps (C/F versions). Each device
can be ordered with default-high or default-low outputs.
The default is the state the output assumes when the
input is not powered, or if the input is open circuit.
Startup and Undervoltage-Lockout
The devices have two supply inputs (V
and V
)
DDB
DDA
that independently set the logic levels on either side of
The V
and V
supplies are both internally
DDA
DDB
device. V and V are referenced to GNDA and
monitored for undervoltage conditions. Undervoltage
events can occur during power-up, power-down, or during
normal operation due to a sagging supply voltage. When
an undervoltage condition is detected on either supply, all
outputs go to their default states regardless of the state of
the inputs (Table 3). Figure 2 through Figure 5 show the
behavior of the outputs during power-up and power-down.
DDA
DDB
GNDB, respectively. The MAX12930/MAX12931 family
also features a refresh circuit to ensure output accuracy
when an input remains in the same state indefinitely.
Digital Isolation
The device family provides galvanic isolation for digital
signals that are transmitted between two ground domains.
Up to 630V
of continuous isolation is supported
PEAK
Table 3. Output Behavior During Undervoltage Conditions
V
V
V
V
V
OUTB_
IN_
VDDA
VDDB
OUTA_
1
Powered
Powered
Powered
Powered
1
1
0
X
X
0
0
Undervoltage
Powered
Powered
Default
Default
Default
Default
Undervoltage
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MAX12930/MAX12931
Two-Channel Digital Isolators
MAX12931_B/C
INPUT SET TO HIGH
MAX12931_B/C
INPUT SET TO LOW
VDDA
VDDB
VDDA
VDDB
2V/div
2V/div
OUT_A
OUT_B
OUT_A
OUT_B
200µs/div
200µs/div
Figure 2. Undervoltage Lockout Behavior (MAX12931B/C High)
Figure 4. Undervoltage Lockout Behavior (MAX12931B/C Low)
MAX12931_E/F
INPUT SET TO HIGH
2
/
VDDA
V
V
2V/div
2V/div
VDDB
OUT_A
OUT_B
200µs/div
2
/div
Figure 3. Undervoltage Lockout Behavior (MAX12931E/F High)
Figure 5. Undervoltage Lockout Behavior (MAX12931E/F Low)
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MAX12930/MAX12931
Two-Channel Digital Isolators
Layout Considerations
Application Information
The PCB designer should follow some critical recom-
mendation in order to get the best performance from the
design.
Power-Supply Sequencing
The MAX12930/MAX12931 do not require special power
supply sequencing. The logic levels are set independently
● Keep the input/output traces as short as possible.
Avoid using vias to make low-inductance paths for
the signals.
on either side by V
and V
. Each supply can be
DDA
DDB
present over the entire specified range regardless of the
level or presence of the other supply.
● Have a solid ground plane underneath the high-
Power-Supply Decoupling
To reduce ripple and the chance of introducing data
speed signal layer.
● Keep the area underneath the MAX12930/MAX12931
free from ground and signal planes. Any galvanic or
metallic connection between the field-side and logic-
side defeats the isolation.
errors, bypass V
and V
with 0.1µF low-ESR
DDA
DDB
ceramic capacitors to GNDA and GNDB, respectively.
Place the bypass capacitors as close to the power supply
input pins as possible.
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MAX12930/MAX12931
Two-Channel Digital Isolators
Ordering Information
ISOLATION
VOLTAGE
(kV
CHANNEL
PART
DATA RATE
(MBPS)
DEFAULT
OUTPUT
TEMP
RANGE
PIN-PACKAGE
CONFIGURATION
)
RMS
MAX12930BASA+*
MAX12930CASA+*
MAX12930EASA+*
MAX12930FASA+*
MAX12931BASA+*
MAX12931CASA+*
MAX12931EASA+*
MAX12931FASA+*
MAX12931BAWE+
2/0
2/0
2/0
2/0
1/1
1/1
1/1
1/1
1/1
25
150
25
High
High
Low
Low
High
High
Low
Low
High
3.75
-40°C to 125°C
-40°C to 125°C
-40°C to 125°C
-40°C to 125°C
-40°C to 125°C
-40°C to 125°C
-40°C to 125°C
-40°C to 125°C
-40°C to 125°C
8 Narrow SOIC
8 Narrow SOIC
8 Narrow SOIC
8 Narrow SOIC
8 Narrow SOIC
8 Narrow SOIC
8 Narrow SOIC
8 Narrow SOIC
16 Wide SOIC
3.75
3.75
3.75
3.75
3.75
3.75
3.75
5.0
150
25
150
25
150
25
*Future product, contact factory for availability
+Denotes a lead(Pb)-free/RoHS-compliant package.
Chip Information
PROCESS: BiCMOS
Package Information
For the latest package outline information and land patterns
(footprints), go to www.maximintegrated.com/packages. Note
that a “+”, “#”, or “-” in the package code indicates RoHS status
only. Package drawings may show a different suffix character, but
the drawing pertains to the package regardless of RoHS status.
PACKAGE
TYPE
PACKAGE
CODE
OUTLINE
NO.
LAND
PATTERN NO.
8 Narrow
SOIC
S8MS-22
21-0041
21-0042
90-0096
90-0107
16 Wide
SOIC
W16MS-11
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MAX12930/MAX12931
Two-Channel Digital Isolators
Revision History
REVISION REVISION
PAGES
CHANGED
DESCRIPTION
NUMBER
DATE
0
6/16
Initial release
—
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim Integrated’s website at www.maximintegrated.com.
Maxim Integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim Integrated product. No circuit patent licenses
are implied. Maxim Integrated reserves the right to change the circuitry and specifications without notice at any time. The parametric values (min and max limits)
shown in the Electrical Characteristics table are guaranteed. Other parametric values quoted in this data sheet are provided for guidance.
©
Maxim Integrated and the Maxim Integrated logo are trademarks of Maxim Integrated Products, Inc.
2016 Maxim Integrated Products, Inc.
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