R545 - Reliability Data

RELIABILITY DATA
LT3070 / LT3071
10/15/2009
• OPERATING LIFE TEST
PACKAGE
TYPE
SAMPLE
SIZE
QFN/DFN
77
77
• PRESSURE COOKER TEST AT 15 PSIG, +121°C
PACKAGE
TYPE
SAMPLE
SIZE
QFN/DFN
150
150
• TEMP CYCLE FROM -65°C to +150°C
PACKAGE
TYPE
SAMPLE
SIZE
QFN/DFN
154
154
• THERMAL SHOCK FROM -65°C to +150°C
PACKAGE
TYPE
SAMPLE
SIZE
OLDEST
DATE CODE
NEWEST
DATE CODE
0910
0910
OLDEST
DATE CODE
NEWEST
DATE CODE
0910
0910
OLDEST
DATE CODE
NEWEST
DATE CODE
0910
0910
OLDEST
DATE CODE
NEWEST
DATE CODE
K DEVICE
(1)
HOURS
AT +125°C
77.00
77.00
K DEVICE HOURS
50.40
50.40
K DEVICE CYCLES
154.00
154.00
K DEVICE CYCLES
NUMBER
(2)
OF
FAILURES
0
0
NUMBER
OF
FAILURES
0
0
NUMBER
OF
FAILURES
0
0
NUMBER
OF
FAILURES
QFN/DFN
154
0910
0910
154.00
0
154
154.00
0
(1) Sample size too small for meaningful FIT calculations
(2) FIT by Process technology below, refer to LTC Reliability Data Pack: http://www.linear.com/designtools/quality/Rel_Data_Pack.pdf
(3) Assumes Activation Energy = 0.7 Electron Volts
(4) Failure Rate Equivalent to +55°C, 60% Confidence Level = 4.53 FITS
(5) Mean Time Between Failures in Years = 25,224
Note: 1 FIT = 1 Failure in One Billion Hours.
Form: 00-03-6209B. R545
Rev 1