Datasheet

DS_DNT12SMD03_07182012
2
TECHNICAL SPECIFICATIONS
(T
A
= 25°C, airflow rate = 300 LFM, V
in
= 12Vdc, nominal Vout unless otherwise noted.)
PARAMETER
NOTES and CONDITIONS
DNT12S0A0S03NFA
Min.
Typ.
Max.
Units
ABSOLUTE MAXIMUM RATINGS
Input Voltage (Continuous)
0
15
Vdc
Operating Temperature
-40
85
°C
Storage Temperature
-55
125
°C
INPUT CHARACTERISTICS
Operating Input Voltage
8.3
12
14
V
Input Under-Voltage Lockout
Turn-On Voltage Threshold
7.90
9
V
Turn-Off Voltage Threshold
7.70
V
Maximum Input Current
Vin=8.3V, Vo=5V, Io=3A
2.2
A
No-Load Input Current
Vo=5V
50
70
mA
Off Converter Input Current
2
10
mA
Inrush Transient
Vin= Vin,min to Vin,max, Io=Io,min to Io,max
0.4
A
2
S
Recommended Input Fuse
TBD
A
OUTPUT CHARACTERISTICS
Output Voltage Set Point
Vin=12V, Io=Io,max
-2.0
Vo,set
+2.0
% Vo,set
Output Voltage Adjustable Range
0.7525
5.5
V
Output Voltage Regulation
Over Line
Vin=Vin,min to Vin,max
0.3
% Vo,set
Over Load
Io=Io,min to Io,max
0.4
% Vo,set
Over Temperature
Ta= -40℃ to 85℃
0.4
% Vo,set
Total Output Voltage Range
Over sample load, line and temperature
-3.0
+3.0
% Vo,set
Output Voltage Ripple and Noise
5Hz to 20MHz bandwidth
Peak-to-Peak
Vin=min to max, Io=min to max,1µF ceramic, 10µF Tan
50
80
mV
RMS
Vin=min to max, Io=min to max,1µF ceramic, 10µF Tan
20
30
mV
Output Current Range
0
3
A
Output Voltage Over-shoot at Start-up
1
% Vo,set
Output DC Current-Limit Inception
200
% Io
Output Short-Circuit Current (Hiccup mode)
Io,s/c
1.5
Adc (rms)
DYNAMIC CHARACTERISTICS
Dynamic Load Response
10µF Tan & 1µF ceramic load cap, 2.5A/µs
Positive Step Change in Output Current
50% Io, max to 100% Io, max
200
mVpk
Negative Step Change in Output Current
100% Io, max to 50% Io, max
200
mVpk
Setting Time to 10% of Peak Devitation
25
µs
Turn-On Transient
Io=Io.max
Start-Up Time, From On/Off Control
Von/off, Vo=10% of Vo,set
7
10
ms
Start-Up Time, From Input
Vin=Vin,min, Vo=10% of Vo,set
7
10
ms
Maximum Output Startup Capacitive Load
Full load; ESR ≧1mΩ
1000
µF
Full load; ESR ≧10mΩ
3000
µF
EFFICIENCY
Vo=0.75V
Vin=12V, Io=Io,max
72.0
%
Vo=1.2V
Vin=12V, Io=Io,max
80.0
%
Vo=1.5V
Vin=12V, Io=Io,max
83.0
%
Vo=1.8V
Vin=12V, Io=Io,max
85.0
%
Vo=2.5V
Vin=12V, Io=Io,max
88.0
%
Vo=3.3V
Vin=12V, Io=Io,max
90.0
%
Vo=5.0V
Vin=12V, Io=Io,max
93.0
%
FEATURE CHARACTERISTICS
Switching Frequency
300
kHz
ON/OFF Control, (for Negative logic)
Logic Low Voltage
Module On, Von/off
-0.2
0.3
V
Logic High Voltage
Module Off, Von/off
2.5
Vin,max
V
Logic Low Current
Module On, Ion/off
10
uA
Logic High Current
Module Off, Ion/off
0.2
1
mA
ON/OFF Control, (for Positive logic)
Logic High Voltage
Module On, Von/off
Vin,max
V
Logic Low Voltage
Module Off, Von/off
-0.2
0.3
V
Logic High Current
Module On, Ion/off
10
uA
Logic Low Current
Module Off, Ion/off
0.2
1
mA
GENERAL SPECIFICATIONS
MTBF
Io=Io,max, Ta=25℃
38.29
M hours
Weight
2.3
grams