Datasheet

ADP1877 Data Sheet
Rev. D | Page 6 of 32
ABSOLUTE MAXIMUM RATINGS
Table 2.
Parameter Rating
VIN, EN1/EN2, RAMP1/RAMP2 15 V
FB1/FB2, COMP1/COMP2, SS1/SS2,
TRK1/TRK2, FREQ, SYNC, VCCO, VDL,
PGOOD1/PGOOD2
−0.3 V to +6 V
ILIM1/ILIM2 −0.3 V to +16 V
BST1/BST2, DH1/DH2, SW1/SW2 to
PGND1/PGND2
−0.3 V to +22 V
DL1/DL2 to PGND1/PGND2
−0.3 V to VCCO +
0.3 V
BST1/BST2 to PGND1/PGND2, SW1/SW2 to
PGND1/PGND2 20 ns Transients
+25 V
DL1/DL2, SW1/SW2, ILIM1/ILIM2 to
PGND1/PGND2 20 ns Negative Transients
−8 V
PGND1/PGND2 to AGND −0.3 V to +0.3 V
PGND1/PGND2 to AGND 20 ns Transients −8 V to +4 V
θ
JA
, =on a Multilayer PCB (Natural Convection)
1, 2
32.6°C/W
Operating Ambient Temperature Range
3
−40°C to +85°C
Operating Junction Temperature Range
3
−40°C to +125°C
Storage Temperature Range −65°C to +150°C
Maximum Soldering Lead Temperature 260°C
1
Measured with exposed pad attached to PCB.
2
Junction-to-ambient thermal resistance (θ
JA
) of the package was calculated
or simulated on a multilayer PCB.
3
The device can be damaged when the junction temperature limits are
exceeded. Monitoring ambient temperature does not guarantee that T
J
is
within the specified temperature limits. In applications with moderate
power dissipation and low PCB thermal resistance, the maximum ambient
temperature can exceed the maximum limit as long as the junction temperature
is within specification limits. The junction temperature, T
J
, of the device is
dependent on the ambient temperature, T
A
, the power dissipation of the
device, P
D
, and the junction to ambient thermal resistance of the package,
θ
JA
. Maximum junction temperature is calculated from the ambient
temperature and power dissipation using the formula T
J
= T
A
+ P
D
× θ
JA
.
Stresses above those listed under Absolute Maximum Ratings
may cause permanent damage to the device. This is a stress
rating only and 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
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.
ESD CAUTION