Technical
Specification
IQ24-QTC Family
IQ24 FaMIly eleCTRICal ChaRaCTeRISTICS (all output voltages)
aBSOlUTe MaXIMUM RaTInGS
Input Voltage
Non-Operating
Operating
Operating Transient Protection
Isolation Voltage
Input to Output
Input to Base-Plate
Output to Base-Plate
Operating Temperature
Storage Temperature
Voltage at ON/OFF input pin
InPUT ChaRaCTeRISTICS
Operating Input Voltage Range
Input Under-Voltage Lockout
Turn-On Voltage Threshold
Turn-Off Voltage Threshold
Lockout Voltage Hysteresis
Recommended External Input Capacitance
DynaMIC ChaRaCTeRISTICS
Turn-On Transient
Turn-On Time
Start-Up Inhibit Time
Output Voltage Overshoot
ISOlaTIOn ChaRaCTeRISTICS
Isolation Voltage (dielectric strength)
Isolation Resistance
Isolation Capacitance (input to output)
1
TeMPeRaTURe lIMITS FOR POWeR DeRaTInG CURVeS
Semiconductor Junction Temperature
Board Temperature
Transformer Temperature
Maximum Baseplate Temperature, T
B
FeaTURe ChaRaCTeRISTICS
Switching Frequency
ON/OFF Control
Off-State Voltage
On-State Voltage
ON/OFF Control
Pull-Up Voltage
Pull-Up Resistance
Over-Temperature Shutdown
Over-Temperature Shutdown Restart Hysteresis
RelIaBIlITy ChaRaCTeRISTICS
Calculated MTBF (Telcordia) TR-NWT-000332
Calculated MTBF (MIL-217) MIL-HDBK-217F
Field Demonstrated MTBF
T
A
= 25 °C, airflow rate = 300 LFM, V
IN
= 24
V
DC
unless
otherwise noted; full operating temperature range is -40 °C to +100 °C ambient
temperature with appropriate power derating.
Specifications subject to change without notice.
Parameter
Min.
-40
-55
-2
18
16.6
15.0
200
230
2.4
-2
Typ.
24
17.0
15.4
1.6
220
9
230
0
30
1000
250
5
50
125
10
2.5
2.0
Max.
60
36
50
2250
2250
2250
100
125
18
36
17.4
15.8
250
125
125
125
100
270
18
0.8
Units notes & Conditions
V
V
V
Vdc
Vdc
Vdc
°C
°C
V
V
V
V
V
µF
ms
ms
%
MW
pF
°C
°C
°C
°C
kHz
V
V
V
kW
°C
°C
Continuous
Continuous
100 ms transient, square wave
Basic insulation, Pollution Degree 2
Baseplate temperature
50 V transient for 100 ms
Typical ESR 0.1-0.2 W
Full load, V
out
=90% nom.
See Figure F
Maximum Output Capacitance
See Absolute Maximum Ratings
Package rated to 150 °C
UL rated max operating temp 130 °C
See Common Figure 3
for derating curve
Regulation and Isolation stages
Common Figures A & B
Average PCB Temperature
10
6
Hrs 80% load, 300LFM, 40 °C T
A
10
6
Hrs 80% load, 300LFM, 40 °C T
A
10
6
Hrs See our website
for details
note 1: Higher values of isolation capacitance can be added external to the module.
Product # IQ24xxxQTCxx
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-IQ24QTX Rev. C
09/23/08
Page 3
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