TI ISO7520C

ISO7520C
ISO7521C
SLLSE39C – JUNE 2010 – REVISED DECEMBER 2011
www.ti.com
Low-Power 5 KV(rms) Dual Digital Isolators
Check for Samples: ISO7520C, ISO7521C
FEATURES
1
•
•
•
•
•
•
•
Highest Signaling Rate: 1 Mbps
Propagation Delay Less Than 20 ns
Low Power Consumption
Wide Ambient Temperature: –40°C to 105°C
Safety and Regulatory Approvals
– UL 1577 Approved with 4243 Vrms Rating
– CSA CA Notice 5A, IEC 60747-5-2,
IEC 60601-1, 60950-1, and 61010-1
Approved
50 kV/µs Transient Immunity Typical
Operates From 3.3V or 5V Supply and Logic
Levels
APPLICATIONS
•
Opto-Coupler Replacement in:
– Medical Applications for IEC 60601-1
(5 KVrms Rated)
– Industrial Field-Bus
– ProfiBus
– ModBus
– DeviceNetTM Data Buses
– Servo Control Interface
– Motor Control
– Power Supply
– Battery Packs
The devices have TTL input thresholds and require
two supply voltages, 3.3V or 5V, or any combination.
All inputs are 5-V tolerant when supplied from a 3.3-V
supply.
Note: The ISO7520C and ISO7521C are specified for
signaling rates up to 1 Mbps. Due to their fast
response time, under most cases, these devices will
also transmit data with much shorter pulse widths.
Designers should add external filtering to remove
spurious signals with input pulse duration < 20 ns if
desired.
ISO7520C
GND 1
NC
VCC 1
INA
INB
NC
GND 1
NC
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
GND 2
NC
VCC 2
OUTA
OUTB
NC
NC
GND 2
GND 1
NC
VCC 1
OUTA
INB
NC
GND 1
NC
1
2
3
4
5
6
7
8
ISO7521C
16
15
14
13
12
11
10
9
GND 2
NC
VCC 2
INA
OUTB
NC
NC
GND 2
NC = No Internal Connection
DESCRIPTION
The ISO7520C and ISO7521C provide galvanic
isolation of up to 4243 Vrms for 1 minute per UL.
These devices are also certified to 5000 Vrms
reinforced insulation per end equipment standards
IEC 60950-1, 61010-1, and 60601-1. These digital
isolators have two isolated channels with
uni-directional
(ISO7520C)
and
bi-directional
(ISO7521C) channel configurations. Each isolation
channel has a logic input and output buffer separated
by a silicon oxide (SiO2) insulation barrier. Used in
conjunction with isolated power supplies, these
devices prevent noise currents on a data bus or other
circuits from entering the local ground and interfering
with or damaging sensitive circuitry.
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2010–2011, Texas Instruments Incorporated
ISO7520C
ISO7521C
SLLSE39C – JUNE 2010 – REVISED DECEMBER 2011
www.ti.com
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.
Table 1. PIN DESCRIPTIONS
PIN
NAME
I/O
DESCRIPTION
ISO7520C
ISO7521C
INA
4
13
I
Input, channel A
INB
5
5
I
Input, channel B
GND1
1, 7
1, 7
–
Ground connection for VCC1
GND2
9, 16
9, 16
–
Ground connection for VCC2
OUTA
13
4
O
Output, channel A
OUTB
12
12
O
Output, channel B
VCC1
3
14
–
Power supply, VCC1
VCC2
3
14
–
Power supply, VCC2
2, 6, 8, 10, 11, 15
2, 6, 8, 10, 11, 15
-
No Connect Pin
NC
DEVICE FUNCTION TABLE
INPUT SIDE (VCC) (1)
OUTPUT SIDE (VCC) (1)
PU
PU
PD
(1)
INPUT (IN) (1)
OUTPUT (OUT) (1)
H
H
PU
L
L
Open
H
X
H
PU = Powered Up (Vcc ≥ 3.15V); PD = Powered Down (Vcc ≤ 2.4V); X = Irrelevant; H = High Level; L = Low Level
AVAILABLE OPTIONS
PRODUCT
RATED TA
MARKED AS
ISO7520C
–40°C to 105°C
ISO7520CDW
ISO7521C
–40°C to 105°C
ISO7521CDW
ORDERING NUMBER
ISO7520CDW (rail)
ISO7520CDWR (reel)
ISO7521CDW (rail)
ISO7521CDWR (reel)
ABSOLUTE MAXIMUM RATINGS (1)
VALUE
UNIT
VCC
Supply voltage (2), VCC1, VCC2
–0.5 V to 6
V
VI
Voltage at IN, OUT
–0.5 V to 6
V
IO
Output Current
±15
mA
±4
kV
±1
kV
Human Body Model
JEDEC Standard 22, Test Method
A114-C.01
Field-Induced-Charged Device
Model
JEDEC Standard 22, Test Method C101
Machine Model
ANSI/ESDS5.2-1996
ESD
Electrostatic
discharge
TJ
Maximum junction temperature
(1)
(2)
2
All pins
±200
V
150
°C
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 under recommended operating
conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
All voltage values except differential I/O bus voltages are with respect to network ground terminal and are peak voltage values.
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ISO7520C
ISO7521C
SLLSE39C – JUNE 2010 – REVISED DECEMBER 2011
www.ti.com
THERMAL INFORMATION
ISO752xC
THERMAL METRIC
DW
UNITS
16 PINS
Junction-to-ambient thermal resistance (1)
θJA
79.9
(2)
θJCtop
Junction-to-case (top) thermal resistance
θJB
Junction-to-board thermal resistance (3)
51.2
ψJT
Junction-to-top characterization parameter (4)
18.0
ψJB
Junction-to-board characterization parameter (5)
42.2
θJCbot
Junction-to-case (bottom) thermal resistance (6)
n/a
PD
Device power dissipation, Vcc1 = Vcc2 = 5.25 V, TJ = 150°C, CL = 15 pF, Input a 0.5
MHz 50% duty cycle square wave
42
(1)
(2)
(3)
(4)
(5)
(6)
44.6
°C/W
mW
The junction-to-ambient thermal resistance under natural convection is obtained in a simulation on a JEDEC-standard, high-K board, as
specified in JESD51-7, in an environment described in JESD51-2a.
The junction-to-case (top) thermal resistance is obtained by simulating a cold plate test on the package top. No specific
JEDEC-standard test exists, but a close description can be found in the ANSI SEMI standard G30-88.
The junction-to-board thermal resistance is obtained by simulating in an environment with a ring cold plate fixture to control the PCB
temperature, as described in JESD51-8.
The junction-to-top characterization parameter, ψJT, estimates the junction temperature of a device in a real system and is extracted
from the simulation data for obtaining θJA, using a procedure described in JESD51-2a (sections 6 and 7).
The junction-to-board characterization parameter, ψJB, estimates the junction temperature of a device in a real system and is extracted
from the simulation data for obtaining θJA , using a procedure described in JESD51-2a (sections 6 and 7).
The junction-to-case (bottom) thermal resistance is obtained by simulating a cold plate test on the exposed (power) pad. No specific
JEDEC standard test exists, but a close description can be found in the ANSI SEMI standard G30-88.
RECOMMENDED OPERATING CONDITIONS
over operating free-air temperature range (unless otherwise noted)
VCC1, VCC2
MIN
TYP
MAX
UNIT
Supply voltage - 3.3V Operation
3.15
3.3
3.45
V
Supply voltage - 5V Operation
4.75
5
5.25
–4
IOH
High-level output current
IOL
Low-level output current
VIH
High-level output voltage
2
VCC
VIL
Low-level output voltage
0
0.8
V
TA
Ambient Temperature
-40
105
°C
TJ (1)
Junction temperature
–40
136
1/tui
Signaling rate
0
1
tui
Input pulse duration
1
(1)
mA
4
mA
V
°C
Mbps
µs
To maintain the recommended operating conditions for TJ, see the Thermal Information table
Copyright © 2010–2011, Texas Instruments Incorporated
Product Folder Link(s): ISO7520C ISO7521C
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ISO7520C
ISO7521C
SLLSE39C – JUNE 2010 – REVISED DECEMBER 2011
www.ti.com
ELECTRICAL CHARACTERISTICS
VCC1 and VCC2 at 5 V ± 5%, TA = –40°C to 105°C
PARAMETER
VOH
High-level output voltage
VOL
Low-level output voltage
VI(HYS)
Input threshold voltage hysteresis
IIH
High-level input current
IIL
Low-level input current
CMTI
Common-mode transient immunity
TEST CONDITIONS
MIN
TYP
IOH = –4 mA; See Figure 1
VCC –0.8
4.6
IOH = –20 µA; See Figure 1
VCC –0.1
5
MAX
V
IOL = 4 mA; See Figure 1
0.2
0.4
IOL = 20 µA; See Figure 1
0
0.1
400
–10
VI = VCC or 0 V; See Figure 3
25
V
mV
10
INx at 0 V or VCC
UNIT
µA
µA
50
kV/µs
SUPPLY CURRENT (All inputs switching with square wave clock signal for dynamic ICC measurement)
ISO7520C
ICC1
Supply current for VCC1
DC to 1 Mbps VI = VCC or 0 V, 15 pF load
0.4
1
mA
ICC2
Supply current for VCC2
DC to 1 Mbps VI = VCC or 0 V, 15 pF load
3
6
mA
ISO7521C
ICC1
Supply current for VCC1
DC to 1 Mbps VI = VCC or 0 V, 15 pF load
2
4
mA
ICC2
Supply current for VCC2
DC to 1 Mbps VI = VCC or 0 V, 15 pF load
2
4
mA
TYP
MAX
SWITCHING CHARACTERISTICS
VCC1 and VCC2 at 5 V ± 5%, TA = –40°C to 105°C
PARAMETER
TEST CONDITIONS
tPLH, tPHL
Propagation delay time
PWD (1)
Pulse width distortion |tPHL – tPLH|
tsk(pp)
Part-to-part skew time
tsk(o)
Channel-to-channel output skew time
tr
Output signal rise time
tf
Output signal fall time
tfs
Fail-safe output delay time from input power loss
(1)
4
MIN
See Figure 1
See Figure 1
9
14
ns
0.3
3.7
ns
4.9
ns
3.6
ns
1
See Figure 2
UNIT
ns
1
ns
6
µs
Also known as pulse skew.
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ISO7520C
ISO7521C
SLLSE39C – JUNE 2010 – REVISED DECEMBER 2011
www.ti.com
ELECTRICAL CHARACTERISTICS
VCC1 at 5 V ± 5%, VCC2 at 3.3 V ± 5%, TA = –40°C to 105°C
PARAMETER
VOH
High-level output voltage
TEST CONDITIONS
IOH = –4 mA;
See Figure 1
MIN
TYP
ISO7521C (5-V side)
VCC –0.8
4.6
ISO7520C/7521C(3.3-V side)
VCC –0.4
3
VCC –0.1
VCC
IOH = –20 µA; See Figure 1
VOL
Low-level output voltage
VI(HYS)
Input threshold voltage hysteresis
IIH
High-level input current
IIL
Low-level input current
CMTI
Common-mode transient immunity
MAX
UNIT
V
IOL = 4 mA; See Figure 1
0.2
0.4
IOL = 20 µA; See Figure 1
0
0.1
V
400
mV
µA
10
INx at 0 V or VCC
–10
VI = VCC or 0 V; See Figure 3
25
µA
40
kV/µs
SUPPLY CURRENT (All inputs switching with square wave clock signal for dynamic ICC measurement)
ISO7520C
ICC1
Supply current for VCC1
DC to 1 Mbps
VI = VCC or 0 V, 15 pF load
0.4
1
mA
ICC2
Supply current for VCC2
DC to 1 Mbps
VI = VCC or 0 V, 15 pF load
2
4.5
mA
ISO7521C
ICC1
Supply current for VCC1
DC to 1 Mbps
VI = VCC or 0 V, 15 pF load
2
4
mA
ICC2
Supply current for VCC2
DC to 1 Mbps
VI = VCC or 0 V, 15 pF load
1.5
3.5
mA
SWITCHING CHARACTERISTICS
VCC1 at 5 V ± 5%, VCC2 at 3.3 V ± 5%, TA = –40°C to 105°C
PARAMETER
TEST CONDITIONS
tPLH, tPHL
Propagation delay time
PWD (1)
Pulse width distortion |tPHL – tPLH|
tsk(pp)
Part-to-part skew time
tsk(o)
Channel-to-channel output skew time
tr
Output signal rise time
tf
Output signal fall time
tfs
Fail-safe output delay time from input power loss
(1)
See Figure 1
See Figure 1
See Figure 2
MIN
TYP
MAX
10
17
UNIT
ns
0.5
5.6
ns
6.3
ns
4
ns
2
ns
2
ns
6
µs
Also known as pulse skew.
Copyright © 2010–2011, Texas Instruments Incorporated
Product Folder Link(s): ISO7520C ISO7521C
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ISO7520C
ISO7521C
SLLSE39C – JUNE 2010 – REVISED DECEMBER 2011
www.ti.com
ELECTRICAL CHARACTERISTICS
VCC1 at 3.3 V ± 5%, VCC2 at 5 V ± 5%, TA = –40°C to 105°C
PARAMETER
VOH
High-level output voltage
TEST CONDITIONS
IOH = –4 mA;
See Figure 1
MIN
TYP
ISO7520C/7521C (5-V side)
VCC –0.8
4.6
ISO7521C (3.3-V side)
VCC –0.4
3
VCC –0.1
VCC
IOH = –20 µA; See Figure 1
VOL
Low-level output voltage
VI(HYS)
Input threshold voltage hysteresis
IIH
High-level input current
IIL
Low-level input current
CMTI
Common-mode transient immunity
MAX
V
IOL = 4 mA; See Figure 1
0.2
0.4
IOL = 20 µA; See Figure 1
0
0.1
400
–10
VI = VCC or 0 V; See Figure 3
25
V
mV
10
INx at 0 V or VCC
UNIT
µA
µA
40
kV/µs
SUPPLY CURRENT (All inputs switching with square wave clock signal for dynamic ICC measurement)
ISO7520C
ICC1
Supply current for VCC1
DC to 1 Mbps
VI = VCC or 0 V, 15 pF load
0.2
0.7
mA
ICC2
Supply current for VCC2
DC to 1 Mbps
VI = VCC or 0 V, 15 pF load
3
6
mA
ISO7521C
ICC1
Supply current for VCC1
DC to 1 Mbps
VI = VCC or 0 V, 15 pF load
1.5
3.5
mA
ICC2
Supply current for VCC2
DC to 1 Mbps
VI = VCC or 0 V, 15 pF load
2
4
mA
TYP
MAX
10
17
ns
0.5
4
ns
8.5
ns
4
ns
SWITCHING CHARACTERISTICS
VCC1 at 3.3 V ± 5%, VCC2 at 5 V ± 5%, TA = –40°C to 105°C
PARAMETER
TEST CONDITIONS
tPLH, tPHL
Propagation delay time
PWD (1)
Pulse width distortion |tPHL – tPLH|
tsk(pp)
Part-to-part skew time
tsk(o)
Channel-to-channel output skew time
tr
Output signal rise time
tf
Output signal fall time
tfs
Fail-safe output delay time from input power loss
(1)
6
See Figure 1
See Figure 1
See Figure 2
MIN
UNIT
2
ns
2
ns
6
µs
Also known as pulse skew.
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ISO7520C
ISO7521C
SLLSE39C – JUNE 2010 – REVISED DECEMBER 2011
www.ti.com
ELECTRICAL CHARACTERISTICS
VCC1 and VCC2 at 3.3 V ± 5%, TA = –40°C to 105°C
PARAMETER
VOH
High-level output voltage
VOL
Low-level output voltage
VI(HYS)
Input threshold voltage hysteresis
IIH
High-level input current
IIL
Low-level input current
CMTI
Common-mode transient immunity
TEST CONDITIONS
MIN
TYP
IOH = –4 mA; See Figure 1
VCC –0.4
3
IOH = –20 µA; See Figure 1
VCC –0.1
3.3
MAX
UNIT
V
IOL = 4 mA; See Figure 1
0.2
0.4
IOL = 20 µA; See Figure 1
0
0.1
V
400
mV
µA
INx at 0 V or VCC
–10
VI = VCC or 0 V; See Figure 3
25
µA
40
kV/µs
SUPPLY CURRENT (All inputs switching with square wave clock signal for dynamic ICC measurement)
ISO7520C
ICC1
Supply current for VCC1
DC to 1 Mbps VI = VCC or 0 V, 15 pF load
0.2
0.7
mA
ICC2
Supply current for VCC2
DC to 1 Mbps VI = VCC or 0 V, 15 pF load
2
4.5
mA
ISO7521C
ICC1
Supply current for VCC1
DC to 1 Mbps VI = VCC or 0 V, 15 pF load
1.5
3.5
mA
ICC2
Supply current for VCC2
DC to 1 Mbps VI = VCC or 0 V, 15 pF load
1.5
3.5
mA
TYP
MAX
UNIT
12
20
ns
1
5
ns
6.8
ns
5.5
ns
SWITCHING CHARACTERISTICS
VCC1 and VCC2 at 3.3 V ± 5%, TA = –40°C to 105°C
PARAMETER
TEST CONDITIONS
tPLH, tPHL
Propagation delay time
PWD (1)
Pulse width distortion |tPHL – tPLH|
tsk(pp)
Part-to-part skew time
tsk(o)
Channel-to-channel output skew time
tr
Output signal rise time
tf
Output signal fall time
tfs
Fail-safe output delay time from input power loss
(1)
See Figure 1
See Figure 1
See Figure 2
MIN
2
ns
2
ns
6
µs
Also known as pulse skew.
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ISO7520C
ISO7521C
SLLSE39C – JUNE 2010 – REVISED DECEMBER 2011
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ISOLATION BARRIER
PARAMETER MEASUREMENT INFORMATION
IN
Input
Generator
VI
50 W
VCC1
VI
1.4V
1.4V
OUT
0V
t PHL
tPLH
VO
CL
VOH
90%
NOTE
B
NOTE A
Vcc/2
VO
10%
tf
tr
Vcc/2
VOL
A.
The input pulse is supplied by a generator having the following characteristics: PRR ≤ 50 kHz, 50% duty cycle, tr ≤
3ns, tf ≤ 3ns, ZO = 50Ω.
B.
CL = 15 pF and includes instrumentation and fixture capacitance within ±20%.
Figure 1. Switching Characteristic Test Circuit and Voltage Waveforms
VI
Vcc1
ISOLATION BARRIER
Vcc1
0V
IN
or
Vcc1
2.7 V
VI
OUT
VO
0V
tfs
CL
VOH
50%
VO
FAILSAFE HIGH
VOL
NOTE
B
A.
CL = 15 pF and includes instrumentation and fixture capacitance within ±20%.
Figure 2. Failsafe Delay Time Test Circuit and Voltage Waveforms
IN
S1
C = 0.1 µF +1 %
ISOLATION BARRIER
V CC1
GND 1
V CC2
C = 0.1 µ F +1 %
Pass-fail criteria –
output must remain
stable .
OUT
NOTE B
V OH or V OL
GND 2
V CM
A.
CL = 15 pF and includes instrumentation and fixture capacitance within ±20%.
Figure 3. Common-Mode Transient Immunity Test Circuit
8
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ISO7521C
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DEVICE INFORMATION
PACKAGE CHARACTERISTICS
over recommended operating conditions (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
L(I01)
Minimum air gap (Clearance)
Shortest terminal to terminal distance through air
8.34
mm
L(I02)
Minimum external tracking (Creepage)
Shortest terminal to terminal distance across the
package surface
8.1
mm
CTI
Tracking resistance (Comparative Tracking
DIN IEC 60112 / VDE 0303 Part 1
Index)
≥400
V
Minimum internal gap (Internal Clearance)
Distance through the insulation
0.014
mm
RIO
Isolation resistance, input to output (1)
Input to output, VIO = 500 V, all pins on each side
of the barrier tied together creating a two-terminal
device
CIO
Barrier capacitance input to output (1)
CI
Input capacitance to ground (2)
(1)
(2)
>1012
Ω
VIO = 0.4 sin(2πft), f = 1 MHz
2
pF
VI = Vcc/2 + 0.4 sin(2πft), f = 1 MHz, Vcc = 5 V
2
pF
All pins on each side of the barrier tied together creating a two-terminal device.
Measured from input pin to ground.
empty para for space above the NOTE
NOTE
Creepage and clearance requirements should be applied according to the specific
equipment isolation standards of an application. Care should be taken to maintain the
creepage and clearance distance of a board design to ensure that the mounting pads of
the isolator on the printed circuit board do not reduce this distance
Creepage and clearance on a printed circuit board become equal according to the
measurement techniques shown in the Isolation Glossary. Techniques such as inserting
grooves and/or ribs on a printed circuit board are used to help increase these
specifications.
IEC 60664-1 RATINGS TABLE
PARAMETER
Basic Isolation Group
Installation Classification
TEST CONDITIONS
Material Group
SPECIFICATION
II
Rated mains voltages <= 150 Vrms
I - IV
Rated mains voltages <= 300 Vrms
I - IV
Rated mains voltages <= 600 Vrms
I - III
Rated mains voltages <= 1000 Vrms
I - II
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ISO7520C
ISO7521C
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INSULATION CHARACTERISTICS
over recommended operating conditions (unless otherwise noted)
PARAMETER
VIORM
VPR
TEST CONDITIONS
SPECIFICATION
Maximum working insulation voltage
1414
Input to output test voltage
VIOTM
Transient overvoltage
VISO
Isolation voltage per UL 1577
RS
Insulation resistance
Method a, After environmental tests subgroup 1,
VPR = VIORM x 1.6, t = 10 s,
Partial discharge < 5 pC
2262
Method b1,
VPR = VIORM x 1.875, t = 1 s (100% Production test)
Partial discharge < 5 pC
2651
After Input/Output Safety Test Subgroup 2/3,
VPR = VIORM x 1.2, t = 10 s,
Partial discharge < 5 pC
1697
t = 60 sec (qualification)
6000
VTEST = VISO, t = 60 sec (qualification)
4243
VTEST = 1.2 × VISO, t = 1 sec (100% production)
5092
VTEST = 500 V at TS = 150°C
>109
Pollution degree
(1)
(1)
UNIT
Vpeak
Vpeak
Vpeak
Vrms
Ω
2
For applications that require DC working voltages between GND1 and GND2, please contact Texas Instruments for further details.
REGULATORY INFORMATION
VDE
TUV
CSA
UL
Certified according to
IEC 60747-5-2
Certified according to EN/UL/CSA 60950-1
& 61010-1
Recognized under 1577
Approved under CSA Component
Component Recognition
Acceptance Notice
Program
Basic Insulation
Maximum Transient
Overvoltage, 6000 VPK
Maximum Working
Voltage, 1414 VPK
5000 VRMS Reinforced Insulation, 400
VRMS maximum working voltage
5000 VRMS Basic Insulation, 600 VRMS
maximum working voltage
5000 VRMS Reinforced insulation,
2 Means of Patient Protection at Single Protection, 4243 VRMS
125 VRMS per IEC 60601-1 (3rd
Isolation Voltage
Ed.)
File Number: 40016131
Certificate Number: U8V 11 08 77311 006
File Number: 220991
File Number: E181974
IEC SAFETY LIMITING VALUES
Safety limiting intends to prevent potential damage to the isolation barrier upon failure of input or output circuitry.
A failure of the IO can allow low resistance to ground or the supply and, without current limiting, dissipate
sufficient power to overheat the die and damage the isolation barrier potentially leading to secondary system
failures.
PARAMETER
Is
Safety input, output, or supply current
Ts
Maximum Case Temperature
TEST CONDITIONS
MIN
TYP
MAX
θJA =79.9°C/W, VI = 5.25 V, TJ = 150°C, TA = 25°C
298
θJA =79.9°C/W, VI = 3.45 V, TJ = 150°C, TA = 25°C
453
150
UNIT
mA
°C
The safety-limiting constraint is the absolute maximum junction temperature specified in the absolute maximum
ratings table. The power dissipation and junction-to-air thermal impedance of the device installed in the
application hardware determines the junction temperature. The assumed junction-to-air thermal resistance in the
Thermal Characteristics table is that of a device installed on a High-K Test Board for Leaded Surface Mount
Packages. The power is the recommended maximum input voltage times the current. The junction temperature is
then the ambient temperature plus the power times the junction-to-air thermal resistance.
10
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Copyright © 2010–2011, Texas Instruments Incorporated
Product Folder Link(s): ISO7520C ISO7521C
ISO7520C
ISO7521C
SLLSE39C – JUNE 2010 – REVISED DECEMBER 2011
www.ti.com
Safety Limiting Current - mA
500
VCC1 and VCC2 at 3.45 V
400
300
VCC1 and VCC2 at 5.25 V
200
100
0
0
50
100
150
200
250
Case Temperature - °C
Figure 4. DW-16 Theta-JC Thermal Derating Curve per IEC 60747-5-2
GND1
NC
0.1m F
2 mm max. from VCC1
VCC1
INA
INB
NC
GND1
NC
GND2
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
NC
0.1m F
2 mm max. from VCC2
VCC2
OUTA
OUTB
NC
NC
GND2
ISO7520C
Figure 5. Typical ISO7520C Application Circuit
EQUIVALENT INPUT AND OUTPUT SCHEMATIC DIAGRAMS
Figure 6. I/O Schematic
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Product Folder Link(s): ISO7520C ISO7521C
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11
ISO7520C
ISO7521C
SLLSE39C – JUNE 2010 – REVISED DECEMBER 2011
www.ti.com
TYPICAL CHARACTERISTICS
INPUT VOLTAGE SWITCHING THRESHOLD vs
FREE-AIR TEMPERATURE
FAIL-SAFE VOLTAGE THRESHOLD vs
FREE-AIR TEMPERATURE
2.62
VIT+, 5 V
1.5
Fail-Safe Voltage Threshold − V
Input Voltage Switching Threshold − V
1.6
1.4
VIT+, 3.3 V
1.3
1.2
1.1
VIT−, 5 V
1.0
VIT−, 3.3 V
0.9
0.8
−55
−35
−15
5
25
45
65
85
105
TA − Free-Air Temperature − °C
FS+
2.60
2.59
2.58
2.57
2.56
2.55
FS−
2.54
2.53
2.52
−55
125
−35
−15
25
45
65
85
105
125
G006
Figure 7.
Figure 8.
HIGH-LEVEL OUTPUT CURRENT vs
HIGH-LEVEL OUTPUT VOLTAGE
LOW-LEVEL OUTPUT CURRENT vs
LOW-LEVEL OUTPUT VOLTAGE
80
IOL − Low-Level Output Current − mA
TA = 25°C
−10
−20
−30
−40
VCC1, VCC2 at 3.3 V
−50
−60
−70
VCC1, VCC2 at 5 V
−80
−90
TA = 25°C
70
60
VCC1, VCC2 at 5 V
50
40
VCC1, VCC2 at 3.3 V
30
20
10
0
0
1
2
3
4
5
VOH − High-Level Output Voltage − V
6
0
1
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2
3
4
VOL − Low-Level Output Voltage − V
G007
Figure 9.
12
5
TA − Free-Air Temperature − °C
G005
0
IOH − High-Level Output Current − mA
2.61
5
6
G008
Figure 10.
Copyright © 2010–2011, Texas Instruments Incorporated
Product Folder Link(s): ISO7520C ISO7521C
ISO7520C
ISO7521C
SLLSE39C – JUNE 2010 – REVISED DECEMBER 2011
www.ti.com
REVISION HISTORY
Changes from Original (June 2010) to Revision A
Page
•
Added PIN DESCRIPTION table .......................................................................................................................................... 2
•
Changed tfs units in Switching Characteristics Table ............................................................................................................ 4
•
Changed tfs units in Switching Characteristics Table ............................................................................................................ 5
•
Changed tfs units in Switching Characteristics Table ............................................................................................................ 6
•
Changed tfs units in Switching Characteristics Table ............................................................................................................ 7
•
Changed Minimum internal gap limit from 0.016 to 0.014 mm. ............................................................................................ 9
•
Deleted VIORM test conditions from INSULATION CHARACTERSISTCS table ................................................................. 10
•
Added VPR parameter and Specifications in INSULATION CHARACTERSISTCS table ................................................... 10
•
Changed VIOTM row of the INSULATION CHARACTERISTICS tables ............................................................................... 10
•
Changed VISO Specifications in INSULATION CHARACTERISTICS table ........................................................................ 10
Changes from Revision A (September 2010) to Revision B
Page
•
Changed 5th Features subbullets ......................................................................................................................................... 1
•
Changed the first SWITCHING CHAR table, MAX value, 2nd row from 3.5 to 3.7 and third row from 4 to 4.9 .................. 4
•
Changed the second SWITCHING CHAR table, MAX value, 2nd row from 4 to 5.6 and third row from 5 to 6.3 ............... 5
•
Changed the third SWITCHING CHAR table, MAX value, 3rd row from 5 to 8.5 ................................................................ 6
•
Changed the fourth SWITCHING CHAR table, MAX value, 3rd row from 6 to 6.8 .............................................................. 7
•
Changed REGULATORY INFORMATION table , from: File Number: pending, to: File Number: E181974 ...................... 10
Changes from Revision B (June 2011) to Revision C
Page
•
Changed all the devices numbers by adding a 'C' to the end .............................................................................................. 1
•
Changed the Safety and Regulatory Approvals Feature ...................................................................................................... 1
•
Changed the Description section .......................................................................................................................................... 1
•
Changed the IEC 60664-1 Ratings Table ............................................................................................................................. 9
•
Changed the INSULATION CHARACTERISTICS table ..................................................................................................... 10
•
Changed the REGULATORY INFORMATION table .......................................................................................................... 10
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Product Folder Link(s): ISO7520C ISO7521C
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13
PACKAGE OPTION ADDENDUM
www.ti.com
26-Apr-2012
PACKAGING INFORMATION
Orderable Device
Status
(1)
Package Type Package
Drawing
Pins
Package Qty
Eco Plan
(2)
Lead/
Ball Finish
MSL Peak Temp
(3)
ISO7520CDW
ACTIVE
SOIC
DW
16
40
Green (RoHS
& no Sb/Br)
CU NIPDAU Level-3-260C-168 HR
ISO7520CDWR
ACTIVE
SOIC
DW
16
2000
Green (RoHS
& no Sb/Br)
CU NIPDAU Level-3-260C-168 HR
ISO7521CDW
ACTIVE
SOIC
DW
16
40
Green (RoHS
& no Sb/Br)
CU NIPDAU Level-3-260C-168 HR
ISO7521CDWR
ACTIVE
SOIC
DW
16
2000
Green (RoHS
& no Sb/Br)
CU NIPDAU Level-3-260C-168 HR
Samples
(Requires Login)
(1)
The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design.
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
OBSOLETE: TI has discontinued the production of the device.
(2)
Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontent for the latest availability
information and additional product content details.
TBD: The Pb-Free/Green conversion plan has not been defined.
Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that
lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes.
Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used between
the die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible) as defined above.
Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight
in homogeneous material)
(3)
MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature.
Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information
provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and
continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals.
TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release.
In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis.
Addendum-Page 1
PACKAGE MATERIALS INFORMATION
www.ti.com
8-Jun-2012
TAPE AND REEL INFORMATION
*All dimensions are nominal
Device
ISO7521CDWR
Package Package Pins
Type Drawing
SOIC
DW
16
SPQ
Reel
Reel
A0
Diameter Width (mm)
(mm) W1 (mm)
2000
330.0
16.4
Pack Materials-Page 1
10.75
B0
(mm)
K0
(mm)
P1
(mm)
W
Pin1
(mm) Quadrant
10.7
2.7
12.0
16.0
Q1
PACKAGE MATERIALS INFORMATION
www.ti.com
8-Jun-2012
*All dimensions are nominal
Device
Package Type
Package Drawing
Pins
SPQ
Length (mm)
Width (mm)
Height (mm)
ISO7521CDWR
SOIC
DW
16
2000
533.4
186.0
36.0
Pack Materials-Page 2
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