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ADP1653
ABSOLUTE MAXIMUM RATINGS
Table 3.
THERMAL RESISTANCE
Parameter
V DD , CTRL0/SDA, CTRL1/SCL, INTF, EN,
SETI, SETT, SETF, STR, HPLED to GND
INT, ILED to GND
LX, OUT to GND
PGND to GND
Operating Ambient Temperature Range
Operating Junction Temperature
Storage Temperature Range
Soldering Conditions
Rating
?0.3 V to +6 V
?0.3 V to + (V DD + 0.3 V)
?0.3 V to +12 V
?0.3 V to +0.3 V
?40°C to +125°C 1
125°C
?65°C to +150°C
JEDEC J-STD-020
Junction-to-ambient thermal resistance (θ JA ) of the package is
based on modeling and calculation using a 4-layer board. The
junction-to-ambient thermal resistance is dependent on the
application and board layout. In applications where high maximum
power dissipation exists, attention to thermal board design is
required. The value of θ JA may vary, depending on PCB material,
layout, and environmental conditions. For more information,
see the AN-772 Application Note, A Design and Manufacturing
Guide for the Lead Frame Chip Scale Package (LFCSP).
Table 4. Thermal Resistance
1
In applications where high power dissipation and poor thermal resistance
are present, the maximum ambient temperature may have to be derated.
Maximum ambient temperature (T A(MAX) ) is dependent on the maximum
operating junction temperature (T J(MAXOP) = 125°C), the maximum power
dissipation of the device (P D(MAX) ), and the junction-to-ambient thermal
Parameter
θ JA
Maximum Power Dissipation
Value
44
1
Unit
°C/W
W
resistance of the part/package in the application (θ JA ), using the following
equation: T A(MAX) = T J(MAXOP) ? (θ JA × P D(MAX) ).
BOUNDARY CONDITION
Stresses above those listed under Absolute Maximum Ratings
may cause permanent damage to the device. This is a stress
rating only; functional operation of the device at these or any
other conditions above those indicated in the operational
section of this specification is not implied. Exposure to absolute
Natural convection, 4-layer board, exposed pad soldered to
the PCB.
ESD CAUTION
maximum rating conditions for extended periods may affect
device reliability.
Absolute maximum ratings apply individually only, not in
combination. Unless otherwise specified, all other voltages
are referenced to GND.
Rev. B | Page 6 of 24
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