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參數(shù)資料
| 型號(hào)： | MC7908CT |
| 廠商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分類(lèi)： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | 3-Terminal 1A Negative Voltage Regulator |
| 中文描述： | 8 V FIXED NEGATIVE REGULATOR, PSFM3 |
| 封裝： | TO-220, 3 PIN |
| 文件頁(yè)數(shù)： | 6/12頁(yè) |
| 文件大?。?/td> | 186K |
| 代理商： | MC7908CT |
MC7900
6
MOTOROLA ANALOG IC DEVICE DATA
MC7915C
ELECTRICAL CHARACTERISTICS
(VI = –23 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)
–17.5 Vdc
≥
VI
≥
–30 Vdc
–20 Vdc
≥
VI
≥
–26 Vdc
(TJ = +25
°
C, IO = 500 mA)
–17.5 Vdc
≥
VI
≥
–30 Vdc
–20 Vdc
≥
VI
≥
–26 Vdc
Load Regulation, TJ = +25
°
C (Note 1)
5.0 mA
≤
IO
≤
1.5 A
250 mA
≤
IO
≤
750 mA
VO
–14.4
–15
–15.6
Vdc
Regline
–
–
–
–
14
6.0
57
27
150
75
300
150
mV
Regload
–
–
68
25
300
150
mV
Output Voltage
–17.5 Vdc
≥
VI
≥
–30 Vdc, 5.0 mA
≤
IO
≤
1.0 A, P
≤
15 W
VO
–14.25
–
–15.75
Vdc
Input Bias Current (TJ = +25
°
C)
Input Bias Current Change
–17.5 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
–
90
–
μ
V
–
60
–
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
MC7915AC
ELECTRICAL CHARACTERISTICS
(VI = –23 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)
–20 Vdc
≥
VI
≥
–26 Vdc, IO = 1.0 A, TJ = +25
°
C
–20 Vdc
≥
VI
≥
–26 Vdc, IO = 1.0 A,
–17.9 Vdc
≥
VI
≥
–30 Vdc, IO = 500 mA
–17.5 Vdc
≥
VI
≥
–30 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
–14.7
–15
–15.3
Vdc
Regline
–
–
–
–
27
57
57
57
75
150
150
150
mV
Regload
–
–
–
68
25
40
150
75
150
mV
Output Voltage
–17.9 Vdc
≥
VI
≥
–30 Vdc, 5.0 mA
≤
IO
≤
1.0 A, P
≤
15 W
VO
–14.4
–
–15.6
Vdc
Input Bias Current
IIB
IIB
–
4.4
8.0
mA
Input Bias Current Change
–17.5 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
–
90
–
μ
V
–
60
–
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
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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