參數(shù)資料
型號: MC7918CT
廠商: FAIRCHILD SEMICONDUCTOR CORP
元件分類: 基準(zhǔn)電壓源/電流源
英文描述: 3-Terminal 1A Negative Voltage Regulator
中文描述: 18 V FIXED NEGATIVE REGULATOR, PSFM3
封裝: TO-220, 3 PIN
文件頁數(shù): 5/12頁
文件大小: 186K
代理商: MC7918CT
MC7900
5
MOTOROLA ANALOG IC DEVICE DATA
MC7912C
ELECTRICAL CHARACTERISTICS
(VI = –19 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 1)
(TJ = +25
°
C, IO = 100 mA)
–14.5 Vdc
VI
–30 Vdc
–16 Vdc
VI
–22 Vdc
(TJ = +25
°
C, IO = 500 mA)
–14.5 Vdc
VI
–30 Vdc
–16 Vdc
VI
–22 Vdc
Load Regulation, TJ = +25
°
C (Note 1)
5.0 mA
IO
1.5 A
250 mA
IO
750 mA
VO
–11.5
–12
–12.5
Vdc
Regline
13
6.0
55
24
120
60
240
120
mV
Regload
46
17
240
120
mV
Output Voltage
–14.5 Vdc
VI
–27 Vdc, 5.0 mA
IO
1.0 A, P
15 W
VO
–11.4
–12.6
Vdc
Input Bias Current (TJ = +25
°
C)
Input Bias Current Change
–14.5 Vdc
VI
–30 Vdc
5.0 mA
IO
1.5 A
Output Noise Voltage (TA = +25
°
C, 10 Hz
f
100 kHz)
Ripple Rejection (IO = 20 mA, f = 120 Hz)
Dropout Voltage
IO = 1.0 A, TJ = +25
°
C
IIB
IIB
4.4
8.0
mA
1.0
0.5
mA
Vn
RR
75
μ
V
61
dB
VI–VO
2.0
Vdc
Average Temperature Coefficient of Output Voltage
IO = 5.0 mA, 0
°
C
TJ
+125
°
C
VO/
T
–1.0
mV/
°
C
MC7912AC
ELECTRICAL CHARACTERISTICS
(VI = –19 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 1)
–16 Vdc
VI
–22 Vdc; IO = 1.0 A, TJ = +25
°
C
–16 Vdc
VI
–22 Vdc; IO = 1.0 A
–14.8 Vdc
VI
–30 Vdc; IO = 500 mA
–14.5 Vdc
VI
–27 Vdc; IO = 1.0 A, TJ = +25
°
C
Load Regulation (Note 1)
5.0 mA
IO
1.5 A, TJ = +25
°
C
250 mA
IO
750 mA
5.0 mA
IO
1.0 A
VO
–11.75
–12
–12.25
Vdc
Regline
6.0
24
24
13
60
120
120
120
mV
Regload
46
17
35
150
75
150
mV
Output Voltage
–14.8 Vdc
VI
–27 Vdc, 5.0 mA
IO
1.0 A, P
15 W
VO
–11.5
–12.5
Vdc
Input Bias Current
IIB
IIB
4.4
8.0
mA
Input Bias Current Change
–15 Vdc
VI
–30 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 = 20 mA, f = 120 Hz)
Dropout Voltage
IO = 1.0 A, TJ = +25
°
C
0.8
0.5
0.5
mA
Vn
RR
75
μ
V
61
dB
VI–VO
2.0
Vdc
Average Temperature Coefficient of Output Voltage
IO = 5.0 A, 0
°
C
TJ
+125
°
C
VO/
T
–1.0
mV/
°
C
NOTE:
1. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into account separately.
NOTE:
1.
Pulse testing with low duty cycle is used.
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