ZHCS321E
–
JUNE 2009
–
REVISED DECEMBER 2011
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
DUB-8
I
S
Safety input, output, or supply current
DW-16
T
S
Maximum case temperature
TEST CONDITIONS
θ
JA
= 73.3
°C/W,
V
I
= 5.5 V, T
J
= 150°C, T
A
= 25°C
θ
JA
= 73.3
°C/W,
V
I
= 3.6 V, T
J
= 150°C, T
A
= 25°C
θ
JA
= 76
°C/W,
V
I
= 5.5 V, T
J
= 150°C, T
A
= 25°C
θ
JA
= 76
°C/W,
V
I
= 3.6 V, T
J
= 150°C, T
A
= 25°C
MIN
TYP
MAX UNIT
310
474
299
457
150
mA
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 assured 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.
REGULATORY INFORMATION
VDE
Certified according to DIN EN 60747-5-2
TUV
Certified according to EN/UL/CSA
60950-1
ISO1050DW:
5000 V
RMS
Reinforced Insulation,
400 V
RMS
maximum working voltage
5000 V
RMS
Basic Insulation,
600 V
RMS
maximum working voltage
ISO1050DUB and ISO1050LDW:
2500 V
RMS
Reinforced Insulation,
400 V
RMS
maximum working voltage
2500 V
RMS
Basic Insulation,
600 V
RMS
maximum working voltage
Certificate Number: U8V 11 09 77311
008
CSA
Approved under CSA Component
Acceptance Notice #5A
5000 V
RMS
Reinforced Insulation
2 Means of Patient Protection at 125
V
RMS
per IEC 60601-1 (3rd Ed.)
UL
Recognized under 1577
(1)
Component Recognition
Program
Double Protection
ISO1050DUB: 2500 V
RMS
ISO1050DW: 3500 V
RMS
,
4243 V
RMS
Single Protection
Certification pending
ISO1050LDW Certification
pending
Basic Insulation
Transient Overvoltage, 4000 V
PK
Surge Voltage, 4000 V
PK
Maximum Working Voltage, 1200 V
PK
(ISO1050DW) and
560 V
PK
(ISO1050DUB)
ISO1050LDW certification is pending
File Number: 40016131
File Number: 220991
File Number: E181974
(1)
Production tested
≥
3000 V
RMS
(ISO1050DUB and ISO1050LDW) and 5092 V
RMS
(ISO1050DW) for 1 second in accordance with UL
1577.
THERMAL INFORMATION (DUB-8 PACKAGE)
over recommended operating conditions (unless otherwise noted)
PARAMETER
θ
JA
θ
JB
θ
JC
P
D
T
j shutdown
(1)
(2)
Junction-to-air
Junction-to-board thermal
resistance
TEST CONDITIONS
Low-K Thermal Resistance
(1)
High-K Thermal Resistance
Low-K Thermal Resistance
MIN
TYP
120
73.3
10.2
14.5
200
190
MAX
UNIT
°C/W
°C/W
°C/W
°C/W
mW
°C
Junction-to-case thermal resistance Low-K Thermal Resistance
Device power dissipation
Thermal shutdown temperature
(2)
V
CC1
= 5.5V, V
CC2
= 5.25V, T
A
=105°C, R
L
= 60Ω,
TXD input is a 500kHz 50% duty-cycle square
wave
Tested in accordance with the Low-K or High-K thermal metric definitions of EIA/JESD51-3 for leaded surface mount packages.
Extended operation in thermal shutdown may affect device reliability.
Copyright
©
2009–2011, Texas Instruments Incorporated
11
ETC [ ETC ]
