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MC7900 Datasheet, PDF (3/14 Pages) ON Semiconductor – 1.0 A Negative Voltage Regulators | |||
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MC7900 Series
MC7905AC
ELECTRICAL CHARACTERISTICS (VI = â10 V, IO = 500 mA, 0°C < TJ < +125°C, unless otherwise noted.)
Characteristics
Symbol
Min
Typ
Max Unit
Output Voltage (TJ = +25°C)
Line Regulation (Note 2)
â8.0 Vdc ⥠VI ⥠â12 Vdc; IO = 1.0 A, TJ = +25°C
â8.0 Vdc ⥠VI ⥠â12 Vdc; IO = 1.0 A
â7.5 Vdc ⥠VI ⥠â 25 Vdc; IO = 500 mA
â7.0 Vdc ⥠VI ⥠â 20 Vdc; IO = 1.0 A, TJ = +25°C
VO
Regline
â4.9 â5.0 â5.1 Vdc
mV
â
2.0
25
â
7.0
50
â
7.0
50
â
6.0
50
Load Regulation (Note 2)
5.0 mA ⤠IO ⤠1.5 A, TJ = +25°C
250 mA ⤠IO ⤠750 mA
5.0 mA ⤠IO ⤠1.0 A
Output Voltage
â7.5 Vdc ⥠VI ⥠â 20 Vdc, 5.0 mA ⤠IO ⤠1.0 A, P ⤠15 W
Regload
â
â
â
mV
11
100
4.0
50
9.0
100
VO
Vdc
â 4.80
â
â 5.20
Input Bias Current
Input Bias Current Change
â7.5 Vdc ⥠VI ⥠â 25 Vdc
5.0 mA ⤠IO ⤠1.0 A
5.0 mA ⤠IO ⤠1.5 A, TJ = +25°C
Output Noise Voltage (TA = +25°C, 10 Hz ⤠f ⤠100 kHz)
Ripple Rejection (IO = mA, f = 120 Hz)
Dropout Voltage (IO = 1.0 A. TJ = +25°C)
Average Temperature Coefficient of Output Voltage
IO = 5.0 A, 0°C ⤠TJ ⤠+125°C
IIB
â
4.4
8.0
mA
DIIB
mA
â
â
1.3
â
â
0.5
â
â
0.5
Vn
â
40
â
mV
RR
â
70
â
dB
VIâVO
â
2.0
â
Vdc
DVO/DT
mV/°C
â
â1.0
â
MC7905.2C
ELECTRICAL CHARACTERISTICS (VI = â10 V, IO = 500 mA, 0°C < TJ < +125°C, unless otherwise noted.)
Characteristics
Symbol
Min
Typ
Max Unit
Output Voltage (TJ = +25°C)
Line Regulation (Note 2)
(TJ = +25°C, IO = 100 mA)
â7.2 Vdc ⥠VI ⥠â 25 Vdc
â8.0 Vdc ⥠VI ⥠â12 Vdc
(TJ = +25°C, IO = 500 mA)
â7.2 Vdc ⥠VI ⥠â 25 Vdc
â8.0 Vdc ⥠VI ⥠â12 Vdc
Load Regulation, TJ = +25°C (Note 2)
5.0 mA ⤠IO ⤠1.5 A
250 mA ⤠IO ⤠750 mA
VO
Regline
â5.0 â5.2 â5.4 Vdc
mV
â
8.0
52
â
2.2
27
â
â
Regload
â
â
37
105
8.5
52
mV
12
105
4.5
52
Output Voltage
â7.2 Vdc ⥠VI ⥠â 20 Vdc, 5.0 mA ⤠IO ⤠1.0 A, P ⤠15 W
VO
Vdc
â 4.95
â
â 5.45
Input Bias Current (TJ = +25°C)
IIB
â
4.3
8.0
mA
Input Bias Current Change
â7.2 Vdc ⥠VI ⥠â 25 Vdc
5.0 mA ⤠IO ⤠1.5 A
DIIB
mA
â
â
1.3
â
â
0.5
Output Noise Voltage (TA = +25°C, 10 Hz ⤠f ⤠100 kHz)
Vn
â
42
â
mV
Ripple Rejection (IO = 20 mA, f = 120 Hz)
RR
â
68
â
dB
Dropout Voltage (IO = 1.0 A, TJ = +25°C)
VIâVO
â
2.0
â
Vdc
Average Temperature Coefficient of Output Voltage
IO = 5.0 mA, 0°C ⤠TJ ⤠+125°C
DVO/DT
mV/°C
â
â1.0
â
2. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into account
separately. Pulse testing with low duty cycle is used.
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