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參數(shù)資料
| 型號： | MC7908 |
| 廠商： | Motorola, Inc. |
| 英文描述： | THREE-TERMINAL NEGATIVE FIXED VOLTAGE REGULATORS |
| 中文描述： | 三端負(fù)固定電壓調(diào)節(jié)器 |
| 文件頁數(shù)： | 7/12頁 |
| 文件大?。?/td> | 186K |
| 代理商： | MC7908 |
MC7900
7
MOTOROLA ANALOG IC DEVICE DATA
MC7918C
ELECTRICAL CHARACTERISTICS
(VI = –27 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)
–21 Vdc
≥
VI
≥
–33 Vdc
–24 Vdc
≥
VI
≥
–30 Vdc
(TJ = +25
°
C, IO = 500 mA)
–21 Vdc
≥
VI
≥
–33 Vdc
–24 Vdc
≥
VI
≥
–30 Vdc
Load Regulation, TJ = +25
°
C (Note 1)
5.0 mA
≤
IO
≤
1.5 A
250 mA
≤
IO
≤
750 mA
VO
–17.3
–18
–18.7
Vdc
Regline
–
–
–
–
25
10
90
50
180
90
360
180
mV
Regload
–
–
110
55
360
180
mV
Output Voltage
–21 Vdc
≥
VI
≥
–33 Vdc, 5.0 mA
≤
IO
≤
1.0 A, P
≤
15 W
VO
–17.1
–
–18.9
Vdc
Input Bias Current (TJ = +25
°
C)
Input Bias Current Change
–21 Vdc
≥
VI
≥
–33 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
–
4.5
8.0
mA
–
–
–
–
1.0
0.5
mA
Vn
RR
–
110
–
μ
V
–
59
–
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
MC7924C
ELECTRICAL CHARACTERISTICS
(VI = –33 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)
–27 Vdc
≥
VI
≥
–38 Vdc
–30 Vdc
≥
VI
≥
–36 Vdc
(TJ = +25
°
C, IO = 500 mA)
–27 Vdc
≥
VI
≥
–38 Vdc
–30 Vdc
≥
VI
≥
–36 Vdc
Load Regulation, TJ = +25
°
C (Note 1)
5.0 mA
≤
IO
≤
1.5 A
250 mA
≤
IO
≤
750 mA
VO
–23
–24
–25
Vdc
Regline
–
–
–
–
31
14
118
70
240
120
470
240
mV
Regload
–
–
150
85
480
240
mV
Output Voltage
–27 Vdc
≥
VI
≥
–38 Vdc, 5.0 mA
≤
IO
≤
1.0 A, P
≤
15 W
VO
–22.8
–
–25.2
Vdc
Input Bias Current (TJ = +25
°
C)
Input Bias Current Change
–27 Vdc
≥
VI
≥
–38 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
–
4.6
8.0
mA
–
–
–
–
1.0
0.5
mA
Vn
RR
–
170
–
μ
V
–
56
–
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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