Input:
Output:
Current:
Package:
35-55 V
9.6 V
43 A
Quarter-brick
Technical Specification
ELECTRICAL CHARACTERISTICS (Continued)
Parameter
P
Min.
Typ.
Max.
Units Notes & Conditions
FEATURE CHARACTERISTICS
Switching Frequency
170
200
230
kHz
ON/OFF Control (Option P)
Off-State Voltage
-1.0
2.4
0.8
18
V
V
On-State Voltage
ON/OFF Control (Option N)
Off-State Voltage
2.4
18
V
On-State Voltage
-1.0
0.8
V
ON/OFF Control (Either Option)
Pull-Up Voltage
Figures A & B
V
10
28
Pull-Up Resistance
k
Ω
Over-Temperature Shutdown
Over-Temperature Shutdown Restart Hysteresis
Load Current Scale Factor
RELIABILITY CHARACTERISTICS
Calculated MTBF (Telcordia)
Calculated MTBF (MIL-217)
Field Demonstrated MTBF
145
150
°C
°C
Average PCB Temperature
10
3333
See App Note: Output Load Current Calc.
o
4.8
3.3
106 Hrs. TR-NWT-000332; 80% load,300LFM, 40 C T
a
a
106 Hrs. MIL-HDBK-217F; 80% load, 300LFM, 40 C T
o
106 Hrs. See our website for details
STANDARDS COMPLIANCE
Parameter
P
Notes
STANDARDS COMPLIANCE
UL/cUL 60950-1
EN60950-1
File # E194341, Basic insulation & pollution degree 2
Certified by TUV
72/23/EEC
93/68/EEC
Needle Flame Test (IEC 695-2-2)
IEC 61000-4-2
Test on entire assembly; board & plastic components UL94V-0 compliant
ESD test, 8kV - NP, 15kV air - NP (Normal Performance)
GR-1089-CORE
Section 7 - electrical safety, Section 9 - bonding/grounding
•
An external input fuse must always be used to meet these safety requirements. Contact SynQor for official safety
certificates on new releases or download from the SynQor website.
QUALIFICATION TESTING
Parameter
P
# Units Test Conditions
QUALIFICATION TESTING
Life Test
32
95% rated Vin and load, units at derating point, 1000 hours
Vibration
5
10-55Hz sweep, 0.060” total excursion,1 min./sweep, 120 sweeps for 3 axis
100g minimum, 2 drops in x and y axis, 1 drop in z axis
-40°C to 100°C, unit temp. ramp 15°C/min., 500 cycles
Toperating = min to max, Vin = min to max, full load, 100 cycles
Tmin-10°C to Tmax+10°C, 5°C steps, Vin = min to max, 0-105% load
85°C, 85% RH, 1000 hours, 2 minutes on and 6 hours off
MIL-STD-883, method 2003
Mechanical Shock
Temperature Cycling
Power/Thermal Cycling
Design Marginality
Humidity
5
10
5
5
5
Solderability
15 pins
•
Extensive characterization testing of all SynQor products and manufacturing processes is performed to ensure that we
supply robust, reliable product. Contact the factory for official product family qualification documents.
OPTIONS
PATENTS
SynQor provides various options for Logic Sense, Pin Length and SynQor is protected under various patents. Please consult the
Feature Set for this family of DC/DC converters. Please consult the last page for further information.
last page of this specification sheet for information on available
options.
Product # BQ55090QPA40
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-2BQ559K Rev. A
3/6/07
Page 4
SYNQOR [ SYNQOR WORLDWIDE HEADQUARTERS ]
