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3.3 - 3
3.3
COM7900T Series
ELECTRICAL CHARACTERISTICS
-15 Volt
V
IN = -23V, Io = 500mA, -55°C
T
A
125°C (unless otherwise specified)
Parameter
Symbol
Test Conditions
Min.
Max.
Unit
Output Voltage
V
OUT
T
A = 25°C
-14.7
-15.3
V
V
IN = -17.5V to -30V
•
-14.5
-15.5
V
Line Regulation
V
RLINE
V
IN = -17.5V to -30V
25
m V
(Note 1)
•
50
m V
V
IN = -20V to -26V
15
m V
•
25
m V
Load Regulation
V
RLOAD
I
O = 5mA to 1.5 Amp
35
m V
(Note 1)
•
75
m V
I
O = 250mA to 750 mA
21
m V
•
45
m V
Standby Current Drain
I
SCD
6.0
m A
•
6.5
m A
Standby Current Drain
DI
SCD
V
IN = -17.5V to -30V
•
0.8
m A
Change With Line
(Line)
Standby Current Drain
DI
SCD
I
O = 5mA to 1000mA
•
0.5
m A
Change With Load
(Load)
Dropout Voltage
V
DO
DV
OUT = 100mV, IO = 1.0A
•
2.5
V
Peak Output Current
I
O (pk)
T
A = 25°C
1.5
3.3
A
Short Circuit Current
I
DS
V
IN = -35V
1.2
A
(Note 2)
•
2.8
A
Ripple Rejection
DV
IN
f =120 Hz, DV
IN = -10V
53
dB
DV
OUT
(Note 3)
•
50
dB
Output Noise Voltage
N
O
T
A = 25°C, f =10 Hz to 100KHz
40
µV/V
(Note 3)
RMS
Long Term Stability
DV
OUT
T
A = 25°C, t = 1000 hrs.
150
m V
(Note 3)
Dt
Notes:
1
. Load and Line Regulation are specified at a constant junction temperature. Pulse testing with low duty cycle is used.
Changes in output voltage due to heating effects must be taken into account separately.
2
. Short Circuit protection is only assured up to V
IN = -35V.
3
. If not tested, shall be guaranteed to the specified limits.
The • denotes the specifications which apply over the full operating temperature range.
3.5
3
2.5
2
1.5
1
0.5
0
05
101520253035
PEAK OUTPUT CURRENT
DV
OUT =
100mV
T
j = -55°C
T
j = 25°C
T
j = 150°C
Input To Output Differential (V)
2.5
2
1.5
1
0.5
0
-75-50-250255075
100
125 150
DROPOUT VOLTAGE
DV
OUT =
100MV
I
OUT = 0A
I
OUT =
500mA
I
OUT = 1A
Junction Temperature (°C)
100
80
60
40
20
0
10
100
1k10k
100k
RIPPLE REJECTION
V
OUT = 5V
V
IN - V = 8VDC +3.5Vrms
I
OUT = 1A
T
j = 25°C
Frequency (Hz)
TYPICAL PERFORMANCE CHARACTERISTICS
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