MAX14934_V01 [MAXIM]
Four-Channel, 5kVRMS Digital Isolators;
| 型号： | MAX14934_V01 |
| 厂家： | 
MAXIM INTEGRATED PRODUCTS |
| 描述： | Four-Channel, 5kVRMS Digital Isolators |
| 文件： | 总23页 (文件大小：1030K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
EVALUATION KIT AVAILABLE
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MAX14934–MAX14936
Four-Channel, 5kVRMS Digital Isolators
General Description
The MAX14934–MAX14936 are a family of four-channel,
Benefits and Features
● Robust Galvanic Isolation of Digital Signals
• Withstands 5kV
for 60s (V
)
5kV
digital isolators utilizing Maxim’s proprietary
RMS
ISO
RMS
• Continuously Withstands 848V
(V
)
process technology. For applications requiring 2.75kV
RMS IOWM
RMS
• 1200V Repetitive Peak Voltage (V
)
P
IORM
of isolation, see the MAX14930–MAX14932. The
MAX14934–MAX14936 family transfers digital signals
between circuits with different power domains at ambient
temperatures up to +125°C.
• Withstands ±10kV Surge per IEC 61000-4-5
● Interfaces Directly with Most Micros and FPGAs
• Accepts 1.71V to 5.5V Supplies
The MAX14934–MAX14936 family offers all three
possible unidirectional channel configurations to accommodate
any four-channel design, including SPI, RS-232, RS-485,
and large digital IO modules. For applications
requiring bidirectional channels, such as I2C, refer to the
MAX14937.
● Many Options Support Broad Applications
• 3 Data Rates (1Mbps, 25Mbps, 150Mbps)
• 3 Channel Direction Configuration
• 2 Output Default States (High or Low)
● Low Power Consumption at High Data Rates
At 1.8V:
Devices are available with data rates from DC up to
1Mbps, 25Mbps, or 150Mbps. Each device is also available
in either a default high or default low configuration. The
default is the state an output goes to when its input is
unpowered. See the Product Selector Guide and Ordering
Information for the suffixes associated with each option.
• 2.5mA per Channel Typical at 1Mbps
• 5.25mA per Channel Typical at 100Mbps
At 3.3V:
• 2.6mA per Channel Typical at 1Mbps
• 7.1mA per Channel Typical at 100Mbps
Safety Regulatory Approvals
(see Safety Regulatory Approvals)
● ULAccording to UL1577
● cUL According to CSA Bulletin 5A
● VDE 0884-11 Basic Insulation
Independent 1.71V to 5.5V supplies on each side of the
isolator also make the devices suitable for use as level
translators.
The MAX14934–MAX14936 are available in a 16-pin
wide body (10.3mm x 7.5mm) SOIC package. All devices
are rated for operation at ambient temperatures of -40°C
to +125°C.
Applications
● Fieldbus Communications for Industrial Automation
● Isolated SPI, RS-232, RS-485/RS-422
● General Multichannel Isolation Applications
● Battery Management
Product Selector Guide and Ordering Information appear at
end of data sheet.
● Medical Systems
Functional Diagram
V
DDA
V
DDB
V
DDA
V
V
DDA
V
DDB
DDB
MAX14934
MAX14935
MAX14936
ENB
ENB
ENB
INA1
INA2
INA3
INA4
OUTB1
INA1
INA2
INA3
OUTB1
INA1
INA2
OUTB1
OUTB2
OUTB3
OUTB4
OUTB2
OUTB3
INB1
OUTB2
INB1
5kV
DIGITAL
ISOLATOR
5kV
RMS
DIGITAL
ISOLATOR
5kV
RMS
DIGITAL
ISOLATOR
RMS
OUTA1
OUTA1
ENA
OUTA2
ENA
INB2
GNDA
GNDB
GNDA
GNDB
GNDA
GNDB
19-7067; Rev 7; 11/20
MAX14934–MAX14936
Four-Channel, 5kV
Digital Isolators
RMS
Absolute Maximum Ratings
V
to GNDA, V
to GNDB.............................-0.3V to +6V
Continuous Power Dissipation (T = +70°C)
A
DDA
DDB
INA_, ENA to GNDA................................................-0.3V to +6V
INB_, ENB to GNDB ...............................................-0.3V to +6V
Wide SOIC (derate 14.1mW/°C above +70°C) ......1126.8mW
Operating Temperature Range......................... -40°C to +125°C
Maximum Junction Temperature .....................................+150°C
Storage Temperature Range............................ -65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
Soldering Temperature (reflow) ......................................+260°C
OUTA_ to GNDA ....................................-0.3V to (V
OUTB_ to GNDB....................................-0.3V to (V
Short-Circuit Duration
+ 0.3V)
+ 0.3V)
DDA
DDB
(OUTA_ to GNDA, OUTB_ 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.
Package Information
PACKAGE TYPE: 16 Wide SOIC
Package Code
W16M+8
21-0042
90-0107
Outline Number
Land Pattern Number
THERMAL RESISTANCE, FOUR-LAYER BOARD
Junction to Ambient (θ
)
71°C/W
23°C/W
JA
Junction to Case (θ
)
JC
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.
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.
Maxim Integrated
│ 2
www.maximintegrated.com
MAX14934–MAX14936
Four-Channel, 5kV
Digital Isolators
RMS
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.
DDA
GNDA
DDB
GNDB
L
A
Typical values are at V
- V
= +3.3V, V
- V
= +3.3V, V
= V
, T = +25°C, unless otherwise noted.) (Note 1)
DDA
GNDA
DDB
GNDB
GNDA
GNDB A
PARAMETER
POWER SUPPLY
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
V
V
Relative to GNDA
Relative to GNDB
1.71
1.71
1.45
5.5
5.5
V
V
V
DDA
Operating Supply Voltage
DDB
Undervoltage Lockout Threshold
V
_
_
V
_ rising
1.58
50
1.71
UVLO
DD
Undervoltage Lockout Threshold
Hysteresis
V
UVLO
mV
HYST
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
1.2
1.2
1.2
1.1
2.1
2
1.9
1.9
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
500kHz
square wave
1.9
1.9
2.7
12.5MHz
square wave
(Note 2)
= 3.3V
= 2.5V
= 1.8V
= 5V
2.7
I
DDA
2
2.7
2
2.6
5
6.6
50MHz
square wave
(Note 2)
= 3.3V
= 2.5V
= 1.8V
= 5V
4.6
4.5
4.5
8.1
7.9
7.9
7.7
12.8
11.1
10.2
9.4
27.2
21.7
17.6
14.4
6.1
6.0
6.0
Supply Current (MAX14934_)
mA
11.2
11.1
11.0
10.8
15.9
14.2
13.4
12.4
35.4
27.8
23.0
18.9
= 3.3V
= 2.5V
= 1.8V
= 5V
500kHz
square wave
12.5MHz
square wave
(Note 2)
= 3.3V
= 2.5V
= 1.8V
= 5V
I
DDB
50MHz
square wave
(Note 2)
= 3.3V
= 2.5V
= 1.8V
Maxim Integrated
│ 3
www.maximintegrated.com
MAX14934–MAX14936
Four-Channel, 5kV
Digital Isolators
RMS
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.
DDA
GNDA
DDB
GNDB
L
A
Typical values are at V
- V
= +3.3V, V
- V
= +3.3V, V
= V
, T = +25°C, unless otherwise noted.) (Note 1)
DDA
GNDA
DDB
GNDB
GNDA
GNDB A
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
3.4
MAX
5.3
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
3.3
5.3
500kHz
square wave
3.3
5.3
3.2
5.1
5.6
7.1
12.5MHz
square wave
(Note 2)
= 3.3V
= 2.5V
= 1.8V
= 5V
5
6.6
I
DDA
4.7
6.4
4.5
6.1
12.4
10.1
9.1
16.0
13.0
11.6
10.4
9.2
50MHz
square wave
(Note 2)
= 3.3V
= 2.5V
= 1.8V
= 5V
8.2
Supply Current (MAX14935_)
mA
6.5
= 3.3V
= 2.5V
= 1.8V
= 5V
6.4
9.1
500kHz
square wave
6.3
9.1
6.2
8.9
10.3
8.9
12.8
11.6
11.0
10.3
29.1
23.0
19.4
15.9
12.5MHz
square wave
(Note 2)
= 3.3V
= 2.5V
= 1.8V
= 5V
I
DDB
8.2
7.6
22.7
17.7
14.7
11.9
50MHz
square wave
(Note 2)
= 3.3V
= 2.5V
= 1.8V
Maxim Integrated
│ 4
www.maximintegrated.com
MAX14934–MAX14936
Four-Channel, 5kV
Digital Isolators
RMS
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.
DDA
GNDA
DDB
GNDB
L
A
Typical values are at V
- V
= +3.3V, V
- V
= +3.3V, V
= V
, T = +25°C, unless otherwise noted.) (Note 1)
DDA
GNDA
DDB
GNDB
GNDA
GNDB A
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
5.2
5.2
5.2
5
MAX
7.2
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
7.2
500kHz
square wave
7.2
7.0
8.2
7.2
6.7
6.3
18
10.0
9.1
12.5MHz
square wave
(Note 2)
= 3.3V
= 2.5V
= 1.8V
= 5V
I
DDA
8.7
8.2
23.3
18.4
16.1
13.6
7.2
50MHz
square wave
(Note 2)
= 3.3V
= 2.5V
= 1.8V
= 5V
14.2
12.3
10.5
5.2
5.2
5.2
5
Supply Current (MAX14936_)
mA
= 3.3V
= 2.5V
= 1.8V
= 5V
7.2
500kHz
square wave
7.2
7.0
8.2
7.2
6.7
6.3
18
10.0
9.1
12.5MHz
square wave
(Note 2)
= 3.3V
= 2.5V
= 1.8V
= 5V
I
DDB
8.7
8.2
23.3
18.4
16.1
13.6
50MHz
square wave
(Note 2)
= 3.3V
= 2.5V
= 1.8V
14.2
12.3
10.5
Maxim Integrated
│ 5
www.maximintegrated.com
MAX14934–MAX14936
Four-Channel, 5kV
Digital Isolators
RMS
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.
DDA
GNDA
DDB
GNDB
L
A
Typical values are at V
- V
= +3.3V, V
- V
= +3.3V, V
= V
, T = +25°C, unless otherwise noted.) (Note 1)
DDA
GNDA
DDB
GNDB
GNDA
GNDB A
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
LOGIC INPUTS AND OUTPUTS
0.7 x
ENA, INA_ relative to GNDA
ENB, INB_ relative to GNDB
V
DDA
Input High Voltage
V
V
IH
0.7 x
V
DDB
1.71V ≤ V
2.25V ≤ V
1.71V ≤ V
2.25V ≤ V
≤ 1.89V
0.6
0.8
0.6
0.8
ENA, INA_
relative to GNDA
DDA
DDA
DDB
DDB
≤ 5.5V
≤ 1.89V
≤ 5.5V
Input Low Voltage
Input Hysteresis
V
V
IL
ENB, INB_
relative to GNDB
MAX1493_A/D
MAX1493_B/E
MAX1493_C/F
410
410
80
V
_ relative to
INA
GNDA or
V
mV
HYS
V
_ relative to
INB
GNDB
V
V
_ = 0 or V
_ = 0 or V
,
INA
INB
DDA
DDB
Input Leakage Current
Input Capacitance
I
-1
-4
+1
-1
µA
pF
µA
L
C
INA_, INB_, f = 1MHz
2
IN
EN_ Pullup Current
I
-2.3
PU
V
_ relative to GNDA,
_ = -4mA (Note 3)
V
V
-
OUTA
DDA
0.4
I
OUTA
Output Voltage High
Output Voltage Low
V
V
V
OH
V
_ relative to GNDB,
_ = -4mA (Note 3)
-
OUTB
DDB
0.4
I
OUTB
V
_ relative to GNDA,
_ = 4mA (Note 3)
OUTA
0.4
0.4
I
OUTA
V
OL
V
_ relative to GNDB,
_ = 4mA (Note 3)
OUTB
I
OUTB
Maxim Integrated
│ 6
www.maximintegrated.com
MAX14934–MAX14936
Four-Channel, 5kV
Digital Isolators
RMS
Dynamic Electrical Characteristics (MAX1493_A/D)
(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
DDA
- V
GNDA
= +3.3V, V
DDB
- V
GNDB
= +3.3V, V
GNDA
= V
, T = +25°C, unless otherwise noted.) (Notes 1, 2)
GNDB A
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
INPUT AND OUTPUT CHANNELS
Common-Mode Transient
Immunity
CMTI
IN__ = GND_ or V
(Note 4)
25
kV/µs
DD_
Maximum Data Rate
Minimum Pulse Width
Glitch Rejection
DR
1
Mbps
µs
MAX
PW
INA_ to OUTB_, INB_ to OUTA_
INA_ to OUTB_, INB_ to OUTA_
1
MIN
32
ns
INA_ to
OUTB_,
INB_ to
OUTA_,
4.5V ≤ V
, V
≤ 5.5V
≤ 3.6V
≤ 2.75V
≤ 1.89V
≤ 5.5V
≤ 3.6V
≤ 2.75V
≤ 1.89V
≤ 5.5V
≤ 3.6V
≤ 2.75V
≤ 1.89V
38.2
38.7
39.7
42.9
38.6
38.9
39.8
42.3
0.4
54.1
54.6
55.6
58.4
55.3
55.6
56.1
60.2
4.5
DDA DDB
3.0V ≤ V
, V
DDA DDB
t
PLH
2.25V ≤ V
1.71V ≤ V
, V
DDA DDB
, V
C = 15pF
L
DDA DDB
Propagation Delay (Figure 1)
ns
ns
ns
INA_ to
OUTB_,
INB_ to
OUTA_,
4.5V ≤ V
3.0V ≤ V
, V
DDA DDB
, V
DDA DDB
t
PHL
2.25V ≤ V
1.71V ≤ V
, V
DDA DDB
, V
C = 15pF
L
DDA DDB
4.5V ≤ V
3.0V ≤ V
, V
DDA DDB
, V
0.2
4.3
DDA DDB
Pulse-Width Distortion
PWD
|t
- t
|
PLH PHL
2.25V ≤ V
, V
0.1
3.9
DDA DDB
1.71V ≤ V
, V
0.6
4.7
DDA DDB
4.5V ≤ V
3.0V ≤ V
, V
≤ 5.5V
≤ 3.6V
26.6
26.6
26.6
26.9
27.9
27.7
27.6
29.7
6.7
DDA DDB
, V
DDA DDB
t
SPLH
2.25V ≤ V
1.71V ≤ V
, V
≤ 2.75V
≤ 1.89V
DDA DDB
, V
Propagation Delay Skew
Part-to-Part (Same Channel)
DDA DDB
4.5V ≤ V
3.0V ≤ V
, V
≤ 5.5V
≤ 3.6V
DDA DDB
, V
DDA DDB
t
SPHL
2.25V ≤ V
, V
≤ 2.75V
≤ 1.89V
DDA DDB
1.71V ≤ V
, V
DDA DDB
4.5V ≤ V
3.0V ≤ V
, V
≤ 5.5V
≤ 3.6V
DDA DDB
, V
6.7
DDA DDB
t
SCSLH
2.25V ≤ V
1.71V ≤ V
, V
≤ 2.75V
≤ 1.89V
6.7
DDA DDB
, V
6.7
Propagation Delay Skew Chan-
nel-to-Channel (Same Direction)
DDA DDB
ns
4.5V ≤ V
3.0V ≤ V
, V
≤ 5.5V
≤ 3.6V
6.7
DDA DDB
, V
6.7
DDA DDB
t
SCSHL
2.25V ≤ V
, V
≤ 2.75V
≤ 1.89V
6.7
DDA DDB
1.71V ≤ V
, V
6.7
DDA DDB
Maxim Integrated
│ 7
www.maximintegrated.com
MAX14934–MAX14936
Four-Channel, 5kV
Digital Isolators
RMS
Dynamic Electrical Characteristics (MAX1493_A/D) (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
DDA
- V
GNDA
= +3.3V, V
DDB
- V
GNDB
= +3.3V, V
GNDA
= V
, T = +25°C, unless otherwise noted.) (Notes 1, 2)
GNDB A
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
26.6
26.6
26.6
26.9
27.9
27.7
27.6
29.7
UNITS
4.5V ≤ V
, V
≤ 5.5V
≤ 3.6V
DDA DDB
3.0V ≤ V
, V
DDA DDB
t
SCOLH
2.25V ≤ V
, V
≤ 2.75V
≤ 1.89V
DDA DDB
Propagation Delay Skew
Channel-to-Channel (Opposing
Direction)
1.71V ≤ V
, V
DDA DDB
ns
4.5V ≤ V
3.0V ≤ V
, V
≤ 5.5V
≤ 3.6V
DDA DDB
, V
DDA DDB
t
SCOHL
2.25V ≤ V
, V
≤ 2.75V
≤ 1.89V
DDA DDB
1.71V ≤ V
, V
DDA DDB
4.5V ≤ V
, V
≤ 5.5V
≤ 3.6V
≤ 2.75V
≤ 1.89V
≤ 5.5V
≤ 3.6V
≤ 2.75V
≤ 1.89V
≤ 5.5V
≤ 3.6V
≤ 2.75V
≤ 1.89V
≤ 5.5V
≤ 3.6V
≤ 2.75V
≤ 1.89V
2
2
2
2
2
2
2
2
DDA DDB
OUTA_/
OUTB_,
10% to 90%,
C = 15pF
L
3.0V ≤ V
, V
DDA DDB
Rise Time (Figure 1)
Fall Time (Figure 1)
Enable to Data Valid
Enable to Three-State
t
ns
ns
ns
ns
R
2.25V ≤ V
, V
DDA DDB
1.71V ≤ V
, V
DDA DDB
4.5V ≤ V
3.0V ≤ V
, V
DDA DDB
OUTA_/
OUTB_,
90% to 10%,
C = 15pF
L
, V
DDA DDB
t
F
2.25V ≤ V
1.71V ≤ V
, V
DDA DDB
, V
DDA DDB
4.5V ≤ V
3.0V ≤ V
, V
5.1
5.5
DDA DDB
ENA to OUTA_,
ENB to OUTB_,
C = 15pF
L
, V
DDA DDB
t
EN
2.25V ≤ V
, V
6.7
DDA DDB
1.71V ≤ V
, V
16.3
2.7
DDA DDB
4.5V ≤ V
3.0V ≤ V
, V
DDA DDB
ENA to OUTA_,
ENB to OUTB_,
, V
4.4
DDA DDB
t
TRI
2.25V ≤ V
, V
7.0
DDA DDB
C = 15pF
L
1.71V ≤ V
, V
11.7
DDA DDB
Maxim Integrated
│ 8
www.maximintegrated.com
MAX14934–MAX14936
Four-Channel, 5kV
Digital Isolators
RMS
Dynamic Electrical Characteristics (MAX1493_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
DDA
- V
GNDA
= +3.3V, V
DDB
- V
GNDB
= +3.3V, V
GNDA
= V
, T = +25°C, unless otherwise noted.) (Notes 1, 2)
GNDB A
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
INPUT AND OUTPUT CHANNELS
Common-Mode Transient
Immunity
CMTI
IN__ = GND_ or V _ (Note 4)
DD
25
kV/µs
Maximum Data Rate
Minimum Pulse Width
Glitch Rejection
DR
25
Mbps
ns
MAX
PW
INA_ to OUTB_, INB_ to OUTA_
INA_ to OUTB_, INB_ to OUTA_
40
MIN
15
ns
4.5V ≤ V
3.0V ≤ V
, V
≤ 5.5V
≤ 3.6V
20.9
21.4
22.4
25.7
21.1
21.5
22.3
24.9
0.2
27.5
28.7
31.2
36.9
28.8
29.8
31.9
37.4
2.6
2.6
2.4
3.2
11.7
11.5
11.3
13.6
9.8
9.8
11.1
14.4
3
INA_ to
OUTB_,
INB_ to
OUTA_,
DDA DDB
, V
DDA DDB
t
PLH
2.25V ≤ V
1.71V ≤ V
4.5V ≤ V
, V
≤ 2.75V
≤ 1.89V
DDA DDB
C = 15pF
L
, V
DDA DDB
Propagation Delay (Figure 1)
ns
ns
ns
, V
≤ 5.5V
≤ 3.6V
INA_ to
OUTB_,
INB_ to
OUTA_,
DDA DDB
3.0V ≤ V
, V
DDA DDB
t
PHL
2.25V ≤ V
, V
≤ 2.75V
≤ 1.89V
DDA DDB
C = 15pF
L
1.71V ≤ V
, V
DDA DDB
4.5V ≤ V
3.0V ≤ V
, V
≤ 5.5V
≤ 3.6V
DDA DDB
, V
0.1
DDA DDB
Pulse-Width Distortion
PWD
|t
- t
|
PLH PHL
2.25V ≤ V
, V
≤ 2.75V
≤ 1.89V
0.1
DDA DDB
1.71V ≤ V
, V
0.7
DDA DDB
4.5V ≤ V
, V
≤ 5.5V
DDA DDB
3.0V ≤ V
, V
≤ 3.6V
DDA DDB
t
SPLH
2.25V ≤ V
, V
≤ 2.75V
≤ 1.89V
DDA DDB
1.71V ≤ V
, V
DDA DDB
Propagation Delay Skew
Part-to-Part (Same Channel)
4.5V ≤ V
3.0V ≤ V
, V
≤ 5.5V
≤ 3.6V
DDA DDB
, V
DDA DDB
t
SPHL
2.25V ≤ V
1.71V ≤ V
, V
≤ 2.75V
≤ 1.89V
DDA DDB
, V
DDA DDB
4.5V ≤ V
3.0V ≤ V
, V
≤ 5.5V
≤ 3.6V
DDA DDB
, V
3
DDA DDB
t
SCSLH
2.25V ≤ V
, V
≤ 2.75V
≤ 1.89V
3
DDA DDB
Propagation Delay Skew
Channel-to-Channel
(Same Direction)
1.71V ≤ V
, V
3
DDA DDB
ns
4.5V ≤ V
3.0V ≤ V
, V
≤ 5.5V
≤ 3.6V
3
DDA DDB
, V
3
DDA DDB
t
SCSHL
2.25V ≤ V
, V
≤ 2.75V
≤ 1.89V
3
DDA DDB
1.71V ≤ V
, V
3
DDA DDB
Maxim Integrated
│ 9
www.maximintegrated.com
MAX14934–MAX14936
Four-Channel, 5kV
Digital Isolators
RMS
Dynamic Electrical Characteristics (MAX1493_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
DDA
- V
GNDA
= +3.3V, V
DDB
- V
GNDB
= +3.3V, V
GNDA
= V
, T = +25°C, unless otherwise noted.) (Notes 1, 2)
GNDB A
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
11.7
11.5
11.3
13.6
9.8
UNITS
4.5V ≤ V
, V
≤ 5.5V
≤ 3.6V
DDA DDB
3.0V ≤ V
, V
DDA DDB
t
SCOLH
2.25V ≤ V
1.71V ≤ V
, V
≤ 2.75V
≤ 1.89V
DDA DDB
Propagation Delay Skew
Channel to Channel (Opposing
Direction)
, V
DDA DDB
ns
4.5V ≤ V
3.0V ≤ V
, V
≤ 5.5V
≤ 3.6V
DDA DDB
, V
9.8
DDA DDB
t
SCOHL
2.25V ≤ V
, V
≤ 2.75V
≤ 1.89V
11.1
14.4
DDA DDB
1.71V ≤ V
, V
DDA DDB
4.5V ≤ V
, V
≤ 5.5V
≤ 3.6V
≤ 2.75V
≤ 1.89V
≤ 5.5V
≤ 3.6V
≤ 2.75V
≤ 1.89V
≤ 5.5V
≤ 3.6V
≤ 2.75V
≤ 1.89V
≤ 5.5V
2
2
2
2
2
2
2
2
DDA DDB
OUTA_/
OUTB_,
10% to 90%,
C = 15pF
L
3.0V ≤ V
, V
DDA DDB
Rise Time (Figure 1)
Fall Time (Figure 1)
Enable to Data Valid
Enable to Three-State
t
ns
ns
ns
ns
R
2.25V ≤ V
, V
DDA DDB
1.71V ≤ V
, V
DDA DDB
4.5V ≤ V
3.0V ≤ V
, V
DDA DDB
OUTA_/
OUTB_,
90% to 10%,
C = 15pF
L
, V
DDA DDB
t
F
2.25V ≤ V
, V
DDA DDB
1.71V ≤ V
, V
DDA DDB
4.5V ≤ V
3.0V ≤ V
, V
5.1
5.5
DDA DDB
ENA to OUTA_,
ENB to OUTB_,
C = 15pF
L
, V
DDA DDB
t
EN
2.25V ≤ V
, V
6.7
DDA DDB
1.71V ≤ V
, V
16.3
2.7
DDA DDB
4.5V ≤ V
3.0V ≤ V
, V
DDA DDB
ENA to OUTA_,
ENB to OUTB_,
, V
≤ 3.6V
4.4
DDA DDB
t
TRI
2.25V ≤ V
, V
≤ 2.75V
≤ 1.89V
7.0
DDA DDB
C = 15pF
L
1.71V ≤ V
, V
11.7
DDA DDB
Maxim Integrated
│ 10
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MAX14934–MAX14936
Four-Channel, 5kV
Digital Isolators
RMS
Dynamic Electrical Characteristics (MAX1493_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
DDA
- V
GNDA
= +3.3V, V
DDB
- V
GNDB
= +3.3V, V
GNDA
= V
, T = +25°C, unless otherwise noted.) (Notes 1, 2)
GNDB A
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
INPUT AND OUTPUT CHANNELS
Common-Mode Transient
Immunity
CMTI
IN__ = GND_ or V _ (Note 4)
DD
25
kV/µs
Maximum Data Rate
Minimum Pulse Width
DR
150
Mbps
ns
MAX
PW
INA_ to OUTB_, INB_ to OUTB_
6.67
7.5
8.1
9.7
14
MIN
INA_ to
OUTB_,
INB_ to
OUTA_,
4.5V ≤ V
3.0V ≤ V
2.25V ≤ V
1.71V ≤ V
4.5V ≤ V
3.0V ≤ V
, V
≤ 5.5V
≤ 3.6V
≤ 2.75V
≤ 1.89V
≤ 5.5V
≤ 3.6V
≤ 2.75V
≤ 1.89V
≤ 5.5V
≤ 3.6V
≤ 2.75V
≤ 1.89V
5.1
5.2
5.8
8.1
4.9
5.3
5.9
8.2
0.2
0.1
0.1
0.1
DDA DDB
, V
DDA DDB
t
PLH
, V
DDA DDB
, V
C = 15pF
L
DDA DDB
Propagation Delay (Figure 1)
ns
ns
ns
INA_ to
OUTB_,
INB_ to
OUTA_,
, V
7.4
8.3
10.2
14.9
1
DDA DDB
, V
DDA DDB
t
PHL
2.25V ≤ V
1.71V ≤ V
, V
DDA DDB
, V
C = 15pF
L
DDA DDB
4.5V ≤ V
3.0V ≤ V
, V
DDA DDB
, V
1
DDA DDB
Pulse-Width Distortion
PWD
|t
- t
|
PLH PHL
2.25V ≤ V
1.71V ≤ V
, V
1
DDA DDB
, V
1
DDA DDB
4.5V ≤ V
3.0V ≤ V
, V
≤ 5.5V
3.0
3.3
4.3
7.1
2.8
3.4
4.6
7.9
0.9
1.2
1.4
1.6
0.9
1.2
1.4
1.6
DDA DDB
, V
≤ 3.6V
DDA DDB
t
SPLH
2.25V ≤ V
, V
≤ 2.75V
≤ 1.89V
DDA DDB
1.71V ≤ V
, V
Propagation Delay Skew Part-
to-Part (Same Channel)
DDA DDB
4.5V ≤ V
3.0V ≤ V
, V
≤ 5.5V
≤ 3.6V
DDA DDB
, V
DDA DDB
t
SPHL
2.25V ≤ V
1.71V ≤ V
, V
≤ 2.75V
≤ 1.89V
DDA DDB
, V
DDA DDB
4.5V ≤ V
3.0V ≤ V
, V
≤ 5.5V
≤ 3.6V
DDA DDB
, V
DDA DDB
t
SCSLH
2.25V ≤ V
, V
≤ 2.75V
≤ 1.89V
DDA DDB
Propagation Delay Skew
Channel-to-Channel
(Same Direction)
1.71V ≤ V
, V
DDA DDB
ns
4.5V ≤ V
3.0V ≤ V
, V
≤ 5.5V
≤ 3.6V
DDA DDB
, V
DDA DDB
t
SCSHL
2.25V ≤ V
, V
≤ 2.75V
≤ 1.89V
DDA DDB
1.71V ≤ V
, V
DDA DDB
Maxim Integrated
│ 11
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MAX14934–MAX14936
Four-Channel, 5kV
Digital Isolators
RMS
Dynamic Electrical Characteristics (MAX1493_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
DDA
- V
GNDA
= +3.3V, V
DDB
- V
GNDB
= +3.3V, V
GNDA
= V
, T = +25°C, unless otherwise noted.) (Notes 1, 2)
GNDB A
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
3
UNITS
4.5V ≤ V
, V
≤ 5.5V
≤ 3.6V
DDA DDB
3.0V ≤ V
, V
3.3
4.3
7.1
2.8
3.4
4.6
7.9
DDA DDB
t
SCOLH
2.25V ≤ V
, V
≤ 2.75V
≤ 1.89V
DDA DDB
Propagation Delay Skew
Channel-to-Channel (Opposing
Direction)
1.71V ≤ V
, V
DDA DDB
ns
4.5V ≤ V
3.0V ≤ V
, V
≤ 5.5V
≤ 3.6V
DDA DDB
, V
DDA DDB
t
SCOHL
2.25V ≤ V
, V
≤ 2.75V
≤ 1.89V
DDA DDB
1.71V ≤ V
, V
DDA DDB
4.5V ≤ V
, V
≤ 5.5V
≤ 3.6V
≤ 2.75V
≤ 1.89V
≤ 5.5V
≤ 3.6V
≤ 2.75V
≤ 1.89V
≤ 5.5V
≤ 3.6V
≤ 2.75V
≤ 1.89V
≤ 5.5V
≤ 3.6V
≤ 2.75V
2
2
2
2
2
2
2
2
DDA DDB
OUTA_/
OUTB_,
10% to 90%,
C = 15pF
L
3.0V ≤ V
, V
DDA DDB
Rise Time (Figure 1)
Fall Time (Figure 1)
Enable to Data Valid
Enable to Three-State
Peak Eye Diagram Jitter
t
ns
ns
ns
ns
ps
R
2.25V ≤ V
, V
DDA DDB
1.71V ≤ V
, V
DDA DDB
4.5V ≤ V
3.0V ≤ V
, V
DDA DDB
OUTA_/
OUTB_,
90% to 10%,
C = 15pF
L
, V
DDA DDB
t
F
2.25V ≤ V
1.71V ≤ V
, V
DDA DDB
, V
DDA DDB
4.5V ≤ V
3.0V ≤ V
, V
5.1
5.5
DDA DDB
ENA to OUTA_,
ENB to OUTB_,
C = 15pF
L
, V
DDA DDB
t
EN
2.25V ≤ V
1.71V ≤ V
, V
6.7
DDA DDB
, V
16.3
2.7
DDA DDB
4.5V ≤ V
, V
DDA DDB
ENA to OUTA_,
ENB to OUTB_,
3.0V ≤ V
, V
4.4
DDA DDB
t
TRI
2.25V ≤ V
, V
7.0
DDA DDB
C = 15pF
L
V
= 5.0V
= 3.3V
= 2.5V
= 1.8V
, V
≤ 1.89V
11.7
DDA DDB
V
V
V
V
, V
140
130
140
160
DDA DDB
, V
DDA DDB
T
JIT(PK)
, V
DDA DDB
, V
DDA DDB
Maxim Integrated
│ 12
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MAX14934–MAX14936
Four-Channel, 5kV
Digital Isolators
RMS
ESD Protection
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
±4
MAX
UNITS
ESD
Human Body Model, All Pins
kV
Note 1: All devices are 100% production tested at T = +125°C. Specifications over temperature are guaranteed by design.
A
Note 2: Not production tested. Guaranteed by design.
Note 3: All currents into the device are positive. All currents out of the device are negative.
Note 4: 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 edges. Tested with the transient generator connected between GNDA and GNDB
(V
= 1000V).
CM
V
DDA
INA1, INA2
50%
50%
GNDA
t
PLH
V
DDA
0.1µF
0.1µF
V
DDB
V
DDA
V
DDB
t
PLH
V
DDB
MAX14934
MAX14935
MAX14936
OUTB1
50%
50%
50Ω
INA_
OUTB_
GNDB
TEST
SOURCE
R
GNDA
GNDB
C
L
L
t
SCSHL
50%
V
DDB
90%
OUTB2
(A)
10%
GNDB
t
R
t
F
(B)
Figure 1. Test Circuit (A) and Timing Diagram (B)
Safety Regulatory Approvals
UL
The MAX14934–MAX14936 are certified under UL1577. For more details, refer to File E351759.
Rated up to 5000V isolation voltage for single protection.
RMS
cUL (Equivalent to CSA notice 5A)
The MAX14934-MAX14936 are certified up to 5000V
VDE
for single protection. For more details, refer to File E351759.
RMS
The MAX14934-MAX14936 are certified to DIN VDE V 0884-11: 2017-01. For details, see file ref. 5015017-4880-0001/272147/TL7/
SCT. Basic Insulation, Maximum Transient Isolation Voltage 8400V , Maximum Repetitive Peak Isolation Voltage 1200V
PK
PK
This coupler is suitable for “safe electrical insulation” only within the safety ratings. Compliance with the safety ratings shall be
ensured by means of suitable protective circuits.
Maxim Integrated
│ 13
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MAX14934–MAX14936
Four-Channel, 5kV
Digital Isolators
RMS
IEC Insulation Testing
TUV
The MAX14934-MAX14936 are tested under TUV.
IEC 60950-1: Up to 1200V (848V
) working voltage for basic insulation.
RMS
PK
IEC 61010-1 (ed. 3): Up to 848V
working voltage for basic insulation. For details, see Technical Report number 095-72100581-100.
RMS
IEC 60601-1 (ed. 3): For details see Technical Report number 095-72100581-200.
Basic insulation 1 MOOP, 1200V (848V
)
RMS
PK
Withstand isolation voltage (V
) for 60s, 5000V
RMS
ISO
MAX14934–MAX14936 Insulation Characteristics
PARAMETER
SYMBOL
CONDITIONS
VALUE
UNITS
Method B1 = V
(t = 1s, partial discharge < 5pC)
x 1.875
IORM
Partial Discharge Test Voltage
V
2250
V
V
PR
P
Maximum Repetitive Peak Isolation Voltage
Maximum Working Isolation Voltage
Maximum Transient Isolation Voltage
V
(Note 5)
1200
848
IORM
P
V
Continuous RMS voltage (Note 5)
t = 1s (Note 5)
V
V
IOWM
RMS
V
8400
V
P
IOTM
f
= 60Hz, duration = 60s
SW
Maximum Withstand Isolation Voltage
Maximum Surge Isolation Voltage
V
5000
10
ISO
RMS
kV
(Note 5, 6)
Basic insulation, 1.2/50µs pulse
per IEC 61000-4-5 (Note 5, 7)
V
IOSM
12
V
V
V
= 500V, T = 25°C
> 10
IO
A
11
Insulation Resistance
R
C
= 500V, 100°C ≤ T ≤ 125°C
> 10
Ω
IO
IO
A
9
= 500V at T = 150°C
S
> 10
IO
Barrier Capacitance Side A to Side B
Minimum Creepage Distance
Minimum Clearance Distance
Internal Clearance
f
= 1MHz (Note 8)
2
pF
IO
SW
CPG
CLR
Wide SOIC
8
8
mm
mm
mm
Wide SOIC
Distance through insulation
Material Group II (IEC 60112)
0.015
575
Comparative Tracking Index
Climatic Category
CTI
40/125/21
Pollution Degree
(DIN VDE 0110, Table 1)
2
Note 5:
V
, V
, V
, V
, and V
are defined by the IEC 60747-5-5 standard.
for 60s and 100% production tested at 120% of V for 1s.
ISO IOTM IOSM IOWM
IORM
Note 6: Products are qualified at V
Note 7: Devices are immersed in oil during surge characterization.
ISO
ISO
Note 8: Capacitance is measured with all pins on field-side and logic-side tied together.
Maxim Integrated
│ 14
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MAX14934–MAX14936
Four-Channel, 5kV
Digital Isolators
RMS
determine the junction temperature. Thermal imped-
ance values (θ and θ ) are available in the Package
Information section of the datasheet. Calculate the junc-
Safety Limits
JA
JC
Damage to the IC can result in a low-resistance path
to ground or to the supply and, without current limiting,
the MAX14934–MAX14936 could dissipate excessive
amounts of power. Excessive power dissipation can dam-
age the die and result in damage to the isolation barrier,
potentially causing downstream issues.Table 1 shows the
safety limits for the MAX14934–MAX14936.
tion temperature (T ) as:
J
T = T + (P x θ )
JA
J
A
D
Figure 2 to Figure 3 show the thermal derating curves for
the safety power limiting and safety current limiting of the
devices. Ensure that the junction temperature does not
exceed 150°C.
The maximum safety temperature (T ) for the device is
S
the 150°C maximum junction temperature specified in
the Absolute Maximum Ratings. The power dissipation
(P ) and junction-to-ambient thermal impedance (θ
D
)
JA
Table 1. Safety Limiting Values for the MAX14934–MAX14936
PARAMETER
SYMBOL
TEST CONDITIONS
MAX
UNITS
Safety Current on Any Pin
(No Damage to Isolation Barrier)
I
T = 150°C, T = 25°C
300
mA
S
J
A
Total Safety Power Dissipation
Maximum Safety Temperature
P
T = 150°C, T = 25°C
1760
150
mW
°C
S
J
A
T
S
THERMAL DERATING CURVE
FOR SAFETY POWER LIMITING
THERMAL DERATING CURVE
FOR SAFETY CURRENT LIMITING
1800
1600
1400
1200
1000
800
350
300
250
200
150
100
50
16 WIDE SOIC PACKAGE,
MULTILAYER BOARD
MULTILAYER BOARD
600
400
200
0
0
0
25
50
75 100 125 150 175 200
0
25
50
75 100 125 150 175 200
AMBIENT TEMPERATURE (°C)
AMBIENT TEMPERATURE (°C)
Figure 2. Thermal Derating Curve for Safety Power Limiting
Figure 3. Thermal Derating Curve for Safety Current Limiting
Maxim Integrated
│ 15
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MAX14934–MAX14936
Four-Channel, 5kV
Digital Isolators
RMS
Typical Operating Characteristics
(V
- V
= +3.3V, V
- V
= +3.3V, V
= V
, T = +25°C, unless otherwise noted.)
DDA
GNDA
DDB
GNDB
GNDA
GNDB A
SIDE B SUPPLY CURRENT
vs. DATA RATE
DRIVING ONE CHANNEL ON
SIDE A
ALL OTHER CHANNELS LOW
MAX14934C/F
PROPAGATION DELAY
vs. TEMPERATURE
SIDE A SUPPLY CURRENT
vs. DATA RATE
toc02
toc03
toc01
25
35.0
30.0
25.0
20.0
15.0
10.0
3.0
2.8
2.6
2.4
2.2
2.0
1.8
1.6
1.4
1.2
1.0
DRIVING ONE CHANNEL ON
SIDE A
ALL OTHER CHANNELS LOW
MAX1493_C/F
VDDA = VDDB
INA_ TO OUTB_
MAX1493_B/E
20
15
10
5
VDD_ = 1.8V
VDD_ = 3.3V
VDD_ = 1.8V
VDD_ = 2.5V
VDD_ = 3.3V
VDD_ = 5.0V
VDD_ = 3.3V
VDD_ = 5V
VDD_ = 1.8V
VDD_ = 5V
VDD_ = 2.5V
VDD_ = 2.5V
0
0
25
50
75
100
125
150
-50 -25
0
25 50 75 100 125 150
0
25
50
75
100
125
150
DATA RATE (Mbps)
TEMPERATURE (°C)
DATA RATE (Mbps)
PROPAGATION DELAY
vs. TEMPERATURE
PROPAGATION DELAY
vs. VDDA VOLTAGE
PROPAGATION DELAY
vs. VDDB VOLTAGE
toc04
toc05
toc06
16
14
12
10
8
35.0
30.0
25.0
20.0
15.0
10.0
5.0
35.0
VDDA = VDDB
INA_ TO OUTB_
MAX1493_C/F
VDDB = 3.3V
30.0 INA_ TO OUTB_
VDDB = 3.3V
INA_ TO OUTB_
25.0
20.0
15.0
MAX1493_B/E
MAX1493_B/E
MAX1493_C/F
6
10.0
5.0
MAX1493_C/F
4
VDD_ = 1.8V
VDD_ = 3.3V
2
VDD_ = 2.5V
VDD_ = 5V
0
0.0
0.0
-50 -25
0
25 50 75 100 125 150
1.5
2.5
3.5
4.5
5.5
1.5
2.5
3.5
4.5
5.5
TEMPERATURE (°C)
VDDA VOLTAGE (V)
VDDB VOLTAGE (V)
MINIMUM PULSE WIDTH
EYE DIAGRAM at 150Mbps toc07
MINIMUM PULSE WIDTH
toc09
toc08
MAX1493_C/F
30s OF PRBS
MAX1493_C/F
MAX1493_B/E
1V/div
1V/div
5ns
1V/div
1V/div
40ns
IN__
IN__
500mV
/div
40ns
5ns
OUT__
OUT__
1ns/div
2.5ns/div
10ns/div
Maxim Integrated
│ 16
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MAX14934–MAX14936
Four-Channel, 5kV
Digital Isolators
RMS
Pin Configurations
TOP VIEW
+
+
+
1
16
1
2
3
4
5
6
7
8
16
1
2
3
4
5
6
7
8
16
V
V
V
DDB
V
V
V
DDA
DDB
DDB
DDA
DDA
2
GNDB
OUTB1
OUTB2
GNDB
OUTB1
OUTB2
GNDB
OUTB1
OUTB2
GNDA
15
14
13
12
GNDA
INA1
15
14
13
12
GNDA
INA1
15
14
13
12
INA1
INA2
3
4
5
6
7
8
MAX14934
INA2
MAX14935
INA2
MAX14936
OUTB3
OUTB3
INB1
INA3
INA4
I.C.
INA3
OUTA1
ENA
OUTA1
OUTA2
ENA
11 OUTB4
10 ENB
11 INB1
10 ENB
11 INB2
10 ENB
9
GNDB
9
GNDB
9
GNDB
GNDA
GNDA
GNDA
SOIC
SOIC
SOIC
Pin Description
PIN
VOLTAGE
RELATIVE TO
NAME
FUNCTION
Power Supply. Bypass V with a 0.1µF ceramic
MAX14934
MAX14935
MAX14936
DDA
1
1
1
V
GNDA
DDA
capacitor as close as possible to the pin.
2, 8
3
2, 8
3
2, 8
3
GNDA
INA1
INA2
INA3
INA4
Ground Reference for Side A
—
Logic Input 1 on Side A. INA1 corresponds to OUTB1.
Logic Input 2 on Side A. INA2 corresponds to OUTB2.
Logic Input 3 on Side A. INA3 corresponds to OUTB3.
Logic Input 4 on Side A. INA4 corresponds to OUTB4.
Internally Connected. Leave unconnected or connect
GNDA
GNDA
GNDA
GNDA
4
4
4
5
5
—
—
6
—
7
—
—
I.C.
—
to GNDA or V
.
DDA
—
—
6
5
6
OUTA1
OUTA2
Logic Output 1 on Side A
GNDA
GNDA
—
Logic Output 2 on Side A
Active-High Enable for Side A. ENA has an internal
—
9, 15
10
7
7
ENA
GNDB
ENB
GNDA
—
2μA pullup to V
.
DDA
9, 15
10
9, 15
10
Ground Reference for Side B
Active-High Enable for Side B. ENB has an internal
GNDB
2μA pullup to V
.
DDB
11
—
—
12
13
14
—
11
—
12
13
14
—
12
11
—
13
14
OUTB4
INB1
Logic Output 4 on Side B
GNDB
GNDB
GNDB
GNDB
GNDB
GNDB
Logic Input 1 on Side B. INB1 corresponds to OUTA1.
Logic Input 2 on Side B. INB2 corresponds to OUTA2.
Logic Output 3 on Side B
INB2
OUTB3
OUTB2
OUTB1
Logic Output 2 on Side B
Logic Output 1 on Side B
Power Supply. Bypass V
capacitor as close as possible to the pin.
with a 0.1µF ceramic
DDB
16
16
16
V
GNDB
DDB
Maxim Integrated
│ 17
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MAX14934–MAX14936
Four-Channel, 5kV
Digital Isolators
RMS
Typical Application Circuits
3.3V
5V
24V
0.1µF
0.1µF
V
V
DDB
DDA
MAX14934
5V OUT
ENB
INA1
INA2
INA3
INA4
OUTB1
OUTB2
OUTB3
OUTB4
GNDA
GNDB
3.3V
5V
GPIO PORT
24V DIGITAL I/O
0.1µF
0.1µF
V
DDB
V
DDA
MAX14934
ENB
INA1
OUTB1
OUTB2
OUTB3
OUTB4
INA2
INA3
INA4
GNDB
GNDA
5kV
RMS
ISOLATION
Maxim Integrated
│ 18
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MAX14934–MAX14936
Four-Channel, 5kV
Digital Isolators
RMS
Typical Application Circuits (continued)
1.8V
3.3V
0.1µF
0.1µF
V
DDA
V
DDB
MAX14935
ENA
ENB
GPIO
SCLK
INA1
OUTB1
OUTB2
CS
INA2
SCLK
MOSI
MISO
µC
ADC
INA3
MOSI
MISO
OUTB3
INB1
OUTA1
GNDA
GNDB
5kV
RMS
ISOLATION
2.5V
5V
0.1µF
0.1µF
V
DDA
V
DDB
MAX14936
ENA
ENB
RTS
Tx
INA1
OUTB1
OUTB2
T1IN
MAX13223
INA2
T2IN
µC
RS-232
TRANSCEIVER
OUTA3
OUTA4
R1OUT
R2OUT
CTS
Rx
INB3
INB4
GNDA
GNDB
5kV
RMS
ISOLATION
Maxim Integrated
│ 19
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MAX14934–MAX14936
Four-Channel, 5kV
Digital Isolators
RMS
Unidirectional Channels
Detailed Description
Each channel of the MAX14934–MAX14936 is
unidirectional; it only passes data in one direction, as
indicated in the functional diagram. Each device features
four unidirectional channels that operate independently
with guaranteed data rates from DC up to 1Mbps (A/D
versions), 25Mbps (B/E versions), or 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.
The MAX14934–MAX14936 are a family of four-channel
digital isolators. The MAX14934–MAX14936 family transfers
digital signals between circuits with different power
domains. The devices are rated for 5kV
isolation voltage
RMS
for 60 seconds. This family of digital 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.
Startup and Undervoltage Lockout
The V
and V
supplies are both internally
DDA
DDB
The MAX14934–MAX14936 family offers three unidi-
rectional channel configurations for design convenience.
The MAX14934 features four channels transferring digital
signals in one direction for applications such as isolated
digital I/O. The MAX14935 has three channels transmitting
data in one direction and one channel transmitting in the
opposite direction, making it ideal for applications such as
isolated SPI and RS-485 communication. The MAX14936
provides further design flexibility with two channels in each
direction for isolated RS-232 or other applications.
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 status
of the inputs (Table 2). Figure 4 through Figure 7 show the
behavior of the outputs during power-up and power-down.
Applications Information
Power-Supply Sequencing
The MAX14934–MAX14936 do not require special power-
supply sequencing. The logic levels are set independently
Devices are available with data rates from DC up to 1Mbps
(A/D versions), 25Mbps (B/E versions), or 150Mbps (C/F
versions). Each device can also be ordered with default-
high or default-low outputs. This is the state an output will
go to when the input side of the device is unpowered.
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.
The devices have two supply inputs, V
and V
,
DDB
DDA
that independently set the logic levels on either side of
the device. V and V are referenced to GNDA and
Power-Supply Decoupling
To reduce ripple and the chance of introducing data errors,
DDA
DDB
GNDB, respectively. The MAX14934–MAX14936 family
also features a refresh circuit to ensure output accuracy
when an input remains in the same state indefinitely.
bypass V
and V
with 0.1µF ceramic capacitors to
DDA
DDB
GNDA and GNDB, respectively. Place the bypass capacitors
as close to the power-supply input pins as possible.
Digital Isolation
Layout Considerations
The MAX14934–MAX14936 family provides galvanic
isolation for digital signals that are transmitted between
two ground domains. Up to 1200V
The PCB designer should follow some critical recom-
mendations in order to get the best performance from the
design.
of continuous
PEAK
isolation is supported, as well as transient differences of
up to 5kV for up to 60 seconds.
●
●
●
Keep the input/output traces as short as possible. To
keep signal paths low-inductance, avoid using vias.
RMS
Level Shifting
The wide supply voltage range of both V
allows the MAX14934–MAX14936 family to be used for
level translation in addition to isolation. V and V
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.
Have a solid ground plane underneath the high-speed
signal layer.
and V
DDB
DDA
Keep the area underneath the MAX14934–MAX14936
free from ground and signal planes. Any galvanic or
metallic connection between the Side A and Side B
defeats the isolation.
DDA
DDB
Maxim Integrated
│ 20
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MAX14934–MAX14936
Four-Channel, 5kV
Digital Isolators
RMS
Table 2. Output Behavior During Undervoltage Conditions
V
V
V
ENA
ENB
V
V
OUTB
IN
DDA
DDB
OUTA
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
1
1
Powered
Powered
Powered
Powered
Hi-Z
0
Hi-Z
0
0
X
X
Hi-Z
Hi-Z
Default
Hi-Z
Default
Hi-Z
Undervoltage
Powered
Powered
Default
Hi-Z
Default
Hi-Z
Undervoltage
MAX1493_A/B/C
MAX1493_A/B/C
INPUT SET TO HIGH
INPUT SET TO LOW
VDDA
VDDA
3V/div
3V/div
VDDB
VDDB
OUTA_
OUTA_
OUTB_
OUTB_
200µs/div
200µs/div
Figure 4. Undervoltage Lockout Behavior (MAX1493_A/B/C High)
Figure 5. Undervoltage Lockout Behavior (MAX1493_A/B/C Low)
MAX1493_D/E/F
MAX1493_D/E/F
INPUT SET TO HIGH
INPUT SET TO LOW
VDDA
VDDA
3V/div
3V/div
VDDB
VDDB
OUTA_
OUTA_
OUTB_
OUTB_
200µs/div
200µs/div
Figure 6. Undervoltage Lockout Behavior (MAX1493_D/E/F High)
Figure 7. Undervoltage Lockout Behavior (MAX1493_D/E/F Low)
Maxim Integrated
│ 21
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MAX14934–MAX14936
Four-Channel, 5kV
Digital Isolators
RMS
Product Selector Guide
MAX1493 5 F A W E +
CHANNEL
CONFIGURATION
4: 4/0
MAX DATA RATE
DEVICE CONFIGURATION
5: 3/1
6: 2/2
1M bps
25 Mbps
150Mbps
DEFAULT-HIGH OUTP UT
DEFAULT-LOW OUTPUT
A
D
B
E
C
F
MAXIMUM DATA RATE
DEFAULT OUTPUT
(SEE TABLE)
TEMP RANGE: -40°C TO +125°C
PACKAGE: W SOIC
PINS: 16
LEAD-FREE/RoHS COMPLIANT
Ordering Information
CHANNEL
CONFIGURATION
DATA RATE
(Mbps)
TEMP RANGE
(°C)
OUTPUT
PART
PIN-PACKAGE
4/0
4/0
4/0
4/0
4/0
4/0
3/1
3/1
3/1
3/1
3/1
3/1
2/2
2/2
2/2
2/2
2/2
2/2
1
25
150
1
Default high
Default high
Default high
Default low
Default low
Default low
Default high
Default high
Default high
Default low
Default low
Default low
Default high
Default high
Default high
Default low
Default low
Default low
MAX14934AAWE+
MAX14934BAWE+
MAX14934CAWE+
MAX14934DAWE+
MAX14934EAWE+
MAX14934FAWE+
MAX14935AAWE+
MAX14935BAWE+
MAX14935CAWE+
MAX14935DAWE+
MAX14935EAWE+
MAX14935FAWE+
MAX14936AAWE+
MAX14936BAWE+
MAX14936CAWE+
MAX14936DAWE+
MAX14936EAWE+
MAX14936FAWE+
-40 to +125
-40 to +125
-40 to +125
-40 to +125
-40 to +125
-40 to +125
-40 to +125
-40 to +125
-40 to +125
-40 to +125
-40 to +125
-40 to +125
-40 to +125
-40 to +125
-40 to +125
-40 to +125
-40 to +125
-40 to +125
16 wide SOIC
16 wide SOIC
16 wide SOIC
16 wide SOIC
16 wide SOIC
16 wide SOIC
16 wide SOIC
16 wide SOIC
16 wide SOIC
16 wide SOIC
16 wide SOIC
16 wide SOIC
16 wide SOIC
16 wide SOIC
16 wide SOIC
16 wide SOIC
16 wide SOIC
16 wide SOIC
25
150
1
25
150
1
25
150
1
25
150
1
25
150
+Denotes a lead(Pb)-free/RoHS-compliant package.
Chip Information
PROCESS: BiCMOS
Maxim Integrated
│ 22
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MAX14934–MAX14936
Four-Channel, 5kV
Digital Isolators
RMS
Revision History
REVISION
NUMBER
REVISION
DATE
PAGES
CHANGED
DESCRIPTION
0
9/14
Initial release
—
Removed future product notation from MAX14935DAWE+ in Ordering Information
table, changed “basic insulation” to “single protection” in Safety Regulatory Approvals
table, and updated third bullet of Many Options Support Broad Applications in
Features and Benefits section.
1
12/14
1, 13, 22
Changed future product status for: MAX14934DAWE+, MAX14936AAWE+,
MAX14936BAWE+, MAX14936DAWE+, MAX14936EAWE+, and MAX14936FAWE+.
2
3
4
3/15
7/15
4/16
22
Updated Benefits and Features section, Safety Regulatory Approvals, Insulation
Characteristics tables, and Pin Configuration tables.
1, 13, 14, 16
1, 13, 14, 21
Fixed typos, updated Safety Regulatory Approvals, and updated Ordering Information/
Selection Guide.
5
6
5/16
1/17
Updated TUV information and created IEC Insulation Testing table
1, 13
Updated Figure 1 text and removed VDE pending
1, 13, 14
Updated General Description, Dynamic Electrical Characteristics (MAX1493_A/D),
Dynamic Electrical Characteristics (MAX1493_B/E), Dynamic Electrical Characteristics
(MAX1493_C/F), Safety Regulatory Approvals, Typical Operating Circuits, and Layout
Considerations sections; added Safety Limits and Product Selector Guide sections;
added new Figures 2 and 3, and renumbered subsequent figures; added Table 1 and
renumbered subsequent tables; added a Product Selector Guide
9
11/20
1, 5–10, 14–24
For pricing, delivery, and ordering information, please visit Maxim Integrated’s online storefront at https://www.maximintegrated.com/en/storefront/storefront.html.
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.
2020 Maxim Integrated Products, Inc.
│ 23
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