Product # PQ24050QGA20
Phone 1-888-567-9596
Doc.# 005-2QG250D Rev. C
03/13/06
Page 4
T
Technical S
echnical Specification
pecification
Input:
Output:
Current:
PPackage:
ackage:
18-36 V
5 V
20 A
Quarter-brick
ParameterP
Min.
Typ.
Max.
Units
Notes & Conditions
FEATURE CHARACTERISTICS
Buck Stage Switching Frequency
280
300
320
kHz
Isolation Stage Switching Frequency1
175
kHz
ON/OFF Control (Option P)
Off-State Voltage
-2
0.8
V
On-State Voltage
2.4
18
V
ON/OFF Control (Option N)
Off-State Voltage
2.4
18
V
On-State Voltage
-2
0.8
V
ON/OFF Control (Either Option)
Figures A &B
Pull-Up Voltage
Vin/3
9.6
V
Pull-Up Resistance
33
k
Output Voltage Trim Range
-20
+10
%
Measured across Pins 8 & 4; Figure C
Output Voltage Remote Sense Range
+10
%
Measured across Pins 8 & 4
Output Over-Voltage Protection
117
122
127
%
Over full temp range; % of nominal Vout
Over-Temperature Shutdown
125
°C
Average PCB Temperature
Over-Temperature Shutdown Restart Hysteresis
10
°C
Load Current Scale Factor
1000
RELIABILITY CHARACTERISTICS
Calculated MTBF (Telcordia)
2.8
106 Hrs. TR-NWT-000332; 80% load,300LFM, 40oC Ta
Calculated MTBF (MIL-217)
1.8
106 Hrs. MIL-HDBK-217F; 80% load, 300LFM, 40oC Ta
Field Demonstrated MTBF
106 Hrs. See our website for details 1. The shape of the output voltage ripple waveform is effected by the fact that the isolation stage runs asynchronous to the input stage.
STANDARDS COMPLIANCE
ParameterP
Notes
STANDARDS COMPLIANCE
UL/cUL 60950-1
File # E194341, Basic insulation & pollution degree 2
EN60950-1
Certified by TUV
72/23/EEC
93/68/EEC
Needle Flame Test (IEC 695-2-2)
Test on entire assembly; board & plastic components UL94V-0 compliant
IEC 61000-4-2
ESD test, 8kV - NP, 15kV air - NP
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
QUALIFICATION TESTING
ParameterP
# 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
Mechanical Shock
5
100g minimum, 2 drops in x and y axis, 1 drop in z axis
Temperature Cycling
10
-40°C to 100°C, unit temp. ramp 15°C/min., 500 cycles
Power/Thermal Cycling
5
Toperating = min to max, Vin = min to max, full load, 100 cycles
Design Marginality
5Tmin-10°C to Tmax+10°C, 5°C steps, Vin = min to max, 0-105% load
Humidity
5
85°C, 85% RH, 1000 hours, 2 minutes on and 6 hours off
Solderability
15 pins
MIL-STD-883, method 2003
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.
ELECTRICAL CHARACTERISTICS (Continued)
OPTIONS
SynQor provides various options for Logic Sense, Pin Length and
Feature Set for this family of DC/DC converters. Please consult the
last page of this specification sheet for information on available
options.
PATENTS
SynQor is protected under various patents, including but not lim-
ited to U.S. Patent # 5,999,417.