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MC7900_13 Datasheet, PDF (5/16 Pages) ON Semiconductor – 1.0 A Negative Voltage Regulators | |||
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MC7900 Series
MC7912B, MC7912C
ELECTRICAL CHARACTERISTICS (VI = â19 V, IO = 500 mA, Tlow* < TJ < +125°C, unless otherwise noted.)
Characteristics
Symbol
Min
Typ
Max Unit
Output Voltage (TJ = +25°C)
Line Regulation (Note 4)
(TJ = +25°C, IO = 100 mA)
â14.5 Vdc ⥠VI ⥠â 30 Vdc
â16 Vdc ⥠VI ⥠â 22 Vdc
(TJ = +25°C, IO = 500 mA)
â14.5 Vdc ⥠VI ⥠â 30 Vdc
â16 Vdc ⥠VI ⥠â 22 Vdc
Load Regulation, TJ = +25°C (Note 4)
5.0 mA ⤠IO ⤠1.5 A
250 mA ⤠IO ⤠750 mA
VO
â11.5 â12 â12.5 Vdc
Regline
mV
â
13
120
â
6.0
60
â
â
Regload
â
â
55
240
24
120
mV
46
240
17
120
Output Voltage
â14.5 Vdc ⥠VI ⥠â 27 Vdc, 5.0 mA ⤠IO ⤠1.0 A, P ⤠15 W
VO
Vdc
â11.4
â
â12.6
Input Bias Current (TJ = +25°C)
Input Bias Current Change
â14.5 Vdc ⥠VI ⥠â 30 Vdc
5.0 mA ⤠IO ⤠1.5 A
IIB
â
4.4
8.0
mA
DIIB
mA
â
â
1.0
â
â
0.5
Output Noise Voltage (TA = +25°C, 10 Hz ⤠f ⤠100 kHz)
Vn
â
75
â
mV
Ripple Rejection (IO = 20 mA, f = 120 Hz)
Dropout Voltage (IO = 1.0 A, TJ = +25°C)
Average Temperature Coefficient of Output Voltage
IO = 5.0 mA, Tlow* ⤠TJ ⤠+125°C
RR
â
61
â
dB
VIâVO
â
1.3
â
Vdc
DVO/DT
mV/°C
â
â1.0
â
MC7912AC
ELECTRICAL CHARACTERISTICS (VI = â19 V, IO = 500 mA, Tlow* < TJ < +125°C, unless otherwise noted.)
Characteristics
Symbol
Min
Typ
Max Unit
Output Voltage (TJ = +25°C)
Line Regulation (Note 4)
â16 Vdc ⥠VI ⥠â 22 Vdc; IO = 1.0 A, TJ = +25°C
â16 Vdc ⥠VI ⥠â 22 Vdc; IO = 1.0 A
â14.8 Vdc ⥠VI ⥠â 30 Vdc; IO = 500 mA
â14.5 Vdc ⥠VI ⥠â 27 Vdc; IO = 1.0 A, TJ = +25°C
VO
â11.75 â12 â12.25 Vdc
Regline
mV
â
6.0
60
â
24
120
â
24
120
â
13
120
Load Regulation (Note 4)
5.0 mA ⤠IO ⤠1.5 A, TJ = +25°C
250 mA ⤠IO ⤠750 mA
5.0 mA ⤠IO ⤠1.0 A
Output Voltage
â14.8 Vdc ⥠VI ⥠â 27 Vdc, 5.0 mA ⤠IO ⤠1.0 A, P ⤠15 W
Regload
â
â
â
mV
46
150
17
75
35
150
VO
Vdc
â11.5
â
â12.5
Input Bias Current
IIB
â
4.4
8.0
mA
Input Bias Current Change
â15 Vdc ⥠VI ⥠â 30 Vdc
5.0 mA ⤠IO ⤠1.0 A
5.0 mA ⤠IO ⤠1.5 A, TJ = +25°C
DIIB
mA
â
â
0.8
â
â
0.5
â
â
0.5
Output Noise Voltage (TA = +25°C, 10 Hz ⤠f ⤠100 kHz)
Vn
â
75
â
mV
Ripple Rejection (IO = 20 mA, f = 120 Hz)
RR
â
61
â
dB
Dropout Voltage (IO = 1.0 A, TJ = +25°C)
VIâVO
â
1.3
â
Vdc
Average Temperature Coefficient of Output Voltage
IO = 5.0 A, Tlow* ⤠TJ ⤠+125°C
DVO/DT
mV/°C
â
â1.0
â
4. 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.
*Tlow = â40°C for MC7912B and Tlow = 0°C for MC7912C.
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