S016-1220120-FB Datasheet, PDF (5/9 Pages) C&D Technologies – DC/DC Converter 12V Input, 1.2 - 5.0V Adjustable Output, 16A or 45W

PWRGD - Power Good Signal
DC/D^DC^C/DC^Co^Cn^ovⁿe^vr^et^re^ter^r
Programmable, Single Output, 1.1V - 1.85Vout @ 60A
12V Input, 1.2 - 5.0V Adjustable Output, 16A or 45W
The power good signal will be asserted, driven high, by the converter to indicate that the output is
valid. If the output fails the specified DC voltage regulation limits or the output is below 90% of
the nominal voltage, then the PWRGD signal will be driven low.
The output is an open collector/drain. It is capable of driving the output below 0.4V with a load of
4mA.
PWRGD_SET - Power Good Signal Levelset
The section sets the Power Good signal levels with a single resistor connected between the
PWRGD_SET (Pin9) and Ground (Pin7). Note fault condition is Low signal on PWRGD_SET.
OUTPUT VOLTAGE
5V
3.3V
2.5V
1.8V
1.25V
1.2V
PWRGD_SET RESISTOR (1%tol)
SHORT ( Zero Ohm)
1.78K
4.22K
11.8K
169K
Open
PWRGD_Threshold
:=
6.19⋅k⋅^{⎛⎜⎝}
1.24
2.21⋅k + Rset
− 18.86⋅10^{− 6⎞⎟âŽ} 
+
1.24
Logic Timings
T7
Off
ENABLE
ON
On
DC Vin
Off
OUTPUT
90%
10%
PWRGD
T3
PWRGD Sense Level = 90% of nom _T2
Output Rise Time
PWRGD Delay
ENABLE-TO-OUTPUT DELAY
0ms < T2 < 5ms
0ms < T3 < 10ms
0ms < T7 < 100ms
1150 Eglinton Avenue East
Toronto, Ontario M3C 1H7
1-866-740-1232
S016_084-S016-00_RevG_Jan12-2005.fm
www.cdtechno-cps.com
4607 S.E. International Way
Milwaukie, Oregon 97222
1-971-206-2800
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