AME5140

REL-1049 -B
Reliability Report
for
AME5140 Series Product
Approved by
Prepared by
Amy Shen
Quality & Reliability Dept.
Manager
Eric Chen
Quality & Reliability Dept.
Engineer
Conclusion:
The AME5140 series product has successfully met AME’s reliability standard that is required on all
AME, Inc products.
Furthermore, QRA Dept. of AME, Inc monitors the reliability continuously to make sure that all
AME5140 series product will still meet AME’s reliability standard in the future.
Table of Contents:
Ⅰ、General Description
Ⅱ、Product Information
Ⅲ、Failures In Time Calculation
Ⅳ、Product Reliability Test Result
Ⅴ、Package Reliability Test Result
Ⅵ、IR-reflow Test Result
Ⅰ、General Description:
The AME5140 switching regulator is current-mode boost converters operating at fixed frequency of 1.6
MHz.
The use of SOT-25/TSOT-25, DFN-8(3mmx3mmx0.75mm) & MSOP-8 packages, made possible by
the minimal power loss of the internal 1.8A switch, and use of small inductor and capacitors result in the
industry's highest power density. The 30V internal switch makes these solutions perfect for boosting to
voltages up to 30V.
These parts have a logic-level shutdown pin that can be used to reduce quiescent current and extend
battery life. Protection is provided through cycle-by-cycle current limiting and thermal shutdown. Internal
compensation simplifies and reduces component count.
Ⅱ、Product Information:
Operating
Number
Pin
Ambient
Package
Special Feature2
of
Output Voltage Special Feature1
Configuration Temperature
Type
(For DFN package only)
Pins
Range
A
1. SW E:-40OC to 85OC E:SOT-2X V: 5
ADJ:Adjustable Y: Lead free &
3:3x3x0.75(mm) (LxWxH)
(SOT-25) 2. GND
V: DFN
A:8
Low profile
(TSOT-25) 3. FB
Q: MSOP
(For TSOT-25 only)
4. EN
Z: Lead free
5. IN
A
(DFN-8)
B
(MSOP-8)
1. NC
2. FB
3. NC
4. SW
5. NC
6. IN
7. EN
8. NC
1. IN
2. EN
3. GND
4. FB
5. SW
6. SW
7. GND
8. GND
Ⅲ、Failures In Time Calculation:
Use HTOL test information mentioned in sectionⅣ, FIT (Failures In Time) can be calculated as below:
FIT = ( x 2 (ν ,
CL )
× 10 9 ) /( 2 × S × H × AF ) = ( 4 .61 × 10 9 ) /( 2 × 77 × 1000 × 280 .59 )
=106.69 (pieces per 109 hours) @ 40℃ with 90% Confidence Level.
Where AF is acceleration factor setting activation energy to 1.0eV as zero failure.
Ⅳ、Product Reliability Test Result:
Test Item
HTOL
Test Condition
Precondition
NOTE 1
Sample Size / Failures
Result
77 pcs / 0 pcs
Pass
3 pcs per pin pair / 0 pcs
Pass
3 pcs per pin pair / 0 pcs
Pass
3 pcs package pair / 0 pcs
Pass
3 pcs per pin pair / 0 pcs
Pass
TSTRESS=125℃
Duration=1000hrs
Biased, Read at
168/504/1000 hours
ESD
Human Body Model
Pin-to-Pin test
Level 2, 2kV minimum
Machine Model
Pin-to-Pin test
Level 2, 200V minimum
Charged Device Model
Level 2, 200V minimum
Latch-up
Level 3, 100mA minimum
NOTE 1: 85/85 168 hours + IR-reflow 3 cycles with Peak Temp.= 245℃ (leaded) or 260℃ (lead-free).
Ⅴ、Package Reliability Test Result:
Test Item
Test Condition
Sample Size / Failures
Result
MSL
85/85 168 hours
22 pcs / 0 pcs
Level 1
45 pcs / 0 pcs
Pass
45 pcs / 0 pcs
Pass
45 pcs / 0 pcs
Pass
45 pcs / 0 pcs
Pass
5 pcs / 0 pcs
Pass
IR-reflow 3 cycles
Peak Temp.= 260℃ (lead-free)
IPC/JEDEC J-STD-020C
HTS
Precondition NOTE 2
Temp.=150℃
Duration=1000 hours
Unbiased, Read at
1000 hours
THT
Precondition NOTE 2
Temp.=85℃, R.H.=85%
Duration=1000 hours
Unbiased,
Read at 1000 hours
PCT
Precondition NOTE 2
Temp.=121℃, R.H.=100%
15PSIG, Unbiased
Duration=168 hours
Read at 168 hours
TCT
Precondition NOTE 2
-65℃ ~ 150℃
500 cycles Unbiased,
Read at 500 cycles
Solderability
Temp.=245℃ (leaded)
Temp.=260℃ (lead-free)
Duration=5sec
NOTE 2: 85/85 168 hours + IR-reflow 3 cycles with Peak Temp.= 245℃ (leaded) or 260℃ (lead-free).
Ⅵ、IR-reflow Test Result:
Test Item
Test Condition
Sample Size / Failures
Result
IR-reflow
See IR reflow Profile
22 pcs / 0 pcs
Pass
Perform 3 cycles test
IR reflow Profile:
Profile Feature
Average Ramp-Up Rate
(Tsmax to Tp)
Preheat
- Temperature Min (Tsmin)
- Temperature Max (Tsmax)
- Time (tsmin to tsmax)
Time maintained above
- Temperature (TL)
- Time (tL)
Peak/Classification Temperature (Tp)
Time within 5℃ of actual Peak
Temperature (tp)
Ramp-Down Rate
Time 25℃ to Peak Temperature
Sn-Pb Eutectic Assembly
Pb-Free Assembly
3℃/second max.
3℃/second max.
100℃
150℃
60~120 seconds
150℃
200℃
60~180 seconds
183℃
60~150 seconds
245℃
217℃
60~150 seconds
260℃
10~30 seconds
20~40 seconds
6℃/second max.
6 minutes max.
6℃/second max.
8 minutes max.